Re: [ns] MIP headaches

2007-12-13 Thread Pedro Vale Estrela


 
 Create a much smaller test example and proceed up step by step
 
 
 
 
 Eng. Pedro Vale Estrela, PhD
 Researcher at INESC-ID, Lisbon
 PhD Computer Science / IP Mobile Networks at IST/TU Lisbon
 
 CV: http://tagus.inesc-id.pt/~pestrela
 Email: [EMAIL PROTECTED]
 Mobile: (+351) 91 8134653
 Work:   (+351) 21 4233285
 
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
 Behalf
  Of Keita Rose
  Sent: quinta-feira, 13 de Dezembro de 2007 13:09
  To: ns-users@ISI.EDU
  Subject: [ns] MIP headaches
 
 
  I  have been trying to simulate simple examples of MIPv4 in NS-2 based
  on the Marc Greiss example for a simulation period of 2400 seconds but
  for more times than not my simulations just seem to hang up.
  I have a 36 nodes grid wired networks in a 2400m x 2400m area with 180
  mobile nodes. I am examine registration details for 20, 40 60 up to 100%
  of nodes mobile but after sometimes as little as 540 seconds the
  simulation seemingly stops. I am using a Sun Blade 2700 running Solaris
  9...
  Any ideas why this may be the case??
 
  Keita





Re: [ns] HOW [EMAIL PROTECTED] - a new/custom (routing) agent - Who knowssomething?

2007-11-21 Thread Pedro Vale Estrela


Claus,

Great effort! 

Please, we need more volunteers for this effort, especially the users which
are just starting NS2 (as documenting NS2 is an excellent way to learn it!)

Regarding the agent creating, please check this info:

http://tagus.inesc-id.pt/~pestrela/ns2/ns2_beginners.html#_Toc128325750
5: The above, but modifying the NS2 simulator yourself.
When you are doing cutting edge research, that nobody did before, the only
solution is to model your own additions to NS2.
The first thing you should do is to locate a similar module that does
something that you want to do also. perhaps another ad-hoc routing protocol,
another QoS queue discipline, etc etc. Then you should clone the code, and
change ALL names of variables, TCL bindings (*), C++ classes, packet
headers, etc etc, to YOUR component name. When you do this you'll get a
working component that you can start to SLOWLY modify to make YOUR
algorithms and operations.
If you do this way, instead of simply start coding from scratch, you'll be
able to work with a working component, step by step, that you are able to
validate every day. The alternative way, you spend months, or even more,
before the component worked for the first time.


Regarding packet sending, I've updated this page with agent-send()
http://nsnam.isi.edu/nsnam/index.php/Sending_Packets



-

Also 1: I'm planning to revamp the mark greis NS2 tutorial, by retesting,
and updating it. At first I'll do it in html; later I'll port it to the
wiki. If anyone wants to help, please step in.

Also 2: I've got a lot of useful info that should be ported to the wiki. 
Namely my debugging tutorials, 
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging3.html

and for instance this web page:
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_tips.html

Index:
How to modify existing procedures from the standard TCL library (/tcl/lib/)
without having to recompile NS2 at each step. 1
How to know values at run-time which are easy to store at configuration
time. 2
How to trigger procedures in other modules at run-time. 3
How to call oTCL code from C++ counterpart an illustrated example. 3
How to known which Agents are implemented in NS2 / which protocols are
implemented in NS2  5
What info options are available in otcl classes and objects?. 5
How to check the syntax of .tcl files. 7
How to get a trace of the oTcl procedures: 8
Which linux distro NOT to use: 8

And my beginners tips:
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_beginners.html



I'm severely time-limited at this very moment because my phd defense, but I
can help others porting it.

Pedro Estrela
http://tagus.inesc-id.pt/~pestrela/ns2





 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Claus Christmann
 Sent: quarta-feira, 21 de Novembro de 2007 21:26
 To: ns users
 Subject: [ns] HOW [EMAIL PROTECTED] - a new/custom (routing) agent - Who
 knowssomething?
 
 
 Hi List,
 
 I have been trying to get my own routing algorithm working in ns2 for
 quite some time now and still haven't gotten as far as I hoped...
 
 I received a lot of support from the ns-users list so far, but still
 need some more insight into ns2. In order to collect all that knowledge
 out there and to make it easier to find/read/change/update, I started a
 small effort on the ns2 wiki on
 
 *How to Write Your Own Agent*
 http://nsnam.isi.edu/nsnam/index.php/Writing_an_Agent
 
 *How to Send Packets*
 http://nsnam.isi.edu/nsnam/index.php/Sending_Packets
 
 *The OSI layers and ns2*
 http://nsnam.isi.edu/nsnam/index.php/OSI_Reference_Model
 
 PLEASE, if YOU have ever struggled on one of these issues or maybe even
 on the issue of writing your own _routing_agent_ , PLEASE go to the wiki
 and write your knowledge down. (Or email me, then I will write it down)
 
 I am looking forward to tackle this big issue with the help off you all.
 
 *THANK YOU*
 
 Claus
 
 --
 Claus Christmann
 Graduate Research Assistant
 
 Georgia Institute of Technology
 270 Ferst Drive
 Atlanta, GA 30332-0150
 
 http://uav.ae.gatech.edu




Re: [ns] regarding xgraph and gnuplot

2007-11-19 Thread Pedro Vale Estrela


Gnuplot is very powerfull, but has a complex interface. 
That's why I've made a gnuplot frontend:
http://tagus.inesc-id.pt/~pestrela/ns2/contributed_code.html#_Toc147652227

that's my recommendation!

--

Xgraph is more basic, but with a simpler interface.

Pedro Vale Estrela
http://tagus.inesc-id.pt/~pestrela/ns2/


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Basim Javed
 Sent: domingo, 18 de Novembro de 2007 1:31
 To: ns-users@ISI.EDU
 Subject: [ns] regarding xgraph and gnuplot
 
 
  hi all
 
 I am new to NS2 world, and just recently installed NS 2.31. I would really
 appreciate help regarding comparison of xgraph and gnuplot, regarding
 their
 strengths and weaknesses.
 
 Thank you in advance.
 
 regard
 
 B




Re: [ns] oTcl debugging: MASH inspector causes segmentation fault

2007-11-15 Thread Pedro Vale Estrela

Good question.

I've not used this patch, so I can't offer much help 

(also, while I've put mashinspector to work, I've not entered its details
too much also).


Pedro Estrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Claus Christmann
 Sent: quinta-feira, 15 de Novembro de 2007 14:15
 To: ns users
 Subject: [ns] oTcl debugging: MASH inspector causes segmentation fault
 
 
 Hi list,
 
 I am trying to debug the mw-node patch for ns2
 (http://www.q2s.ntnu.no/~paquerea/ns.html) using Pedro's guide to get
 oTcl debugging capabilities
 (http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html).
 
 One of the apparently very useful tools is the MashInspector, which
 unfortunately crashes when inspecting objects introduced be the mw-node
 patch.
 
 *Has anybody experience/hints/links on oTcl debugging with the mw-node
 patch?*
 
 Thanks for any feedback.
 
 Claus
 --
 Claus Christmann
 Graduate Research Assistant
 
 Georgia Institute of Technology
 270 Ferst Drive
 Atlanta, GA 30332-0150
 
 http://uav.ae.gatech.edu




Re: [ns] Visualization of data pkt movements in nam for wirelessscenarios

2007-11-15 Thread Pedro Vale Estrela


a) I've put a patch very recently on this list to enable packet coloring in
wireless scnenarios.

b) for nam to show drops, they must be logged in the .nam file. Try to
change the amount of L2 and L3 logging that is being performed.

Pedro Estrela
http://tagus.inesc-id.pt/~pestrela/ns2/



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Karena Stannett
 Sent: quinta-feira, 15 de Novembro de 2007 14:06
 To: ns-users@ISI.EDU
 Subject: [ns] Visualization of data pkt movements in nam for
 wirelessscenarios
 
 
 -- Forwarded message --
 From: Karena Stannett [EMAIL PROTECTED]
 Date: 15 Nov 2007 13:10
 Subject: Visualization of data pkt movements in nam for wireless scenarios
 To: Ns-users@isi.edu
 
 
 Hi all,
 
 I am a newbie to NS2 and need to clarify something in respect of the
 visualisation of data pkt movements in nam in wireless networks.  I've
 worked my way through Marc Gries' Tutorials which state visualisation
 of pkt movement is not possible.
 
 However my research concerns DCCP and as such I am using the
 dccp-ns2.29.patch.  I have also tried the dccp-wireless.tcl example
 that is available from the same location as the patch.  When I run the
 namtrace file it clearly shows pkts being sent and dropped between 2
 nodes over a wireless network.  Is this visualisation unique to the
 DCCP or is it now supported generally in NS2.  And if it is now
 generally supported how is this done?
 
 I've looked at the differences between the code of a tcp agent
 wireless example very similar to the dccp-wireless.tcl and tried
 commenting out / adding bits to see if I can create visualisation in
 other wireless networks, read the wireless trace chapters of the
 manual and tried to see if there is anything relevant in the archives
 posts but  I'm still no closer to knowing how this is being acheived.
 
 Any help appreciated
 
 Karena
 
 
 
 --
 Respect -the ability to see a person as he is, to be aware of his
 unique individuality.
 ROOT(Respicere - to look at)
 
 
 --
 Respect -the ability to see a person as he is, to be aware of his
 unique individuality.
 ROOT(Respicere - to look at)




Re: [ns] Visualization of data pkt movements in nam forwirelessscenarios

2007-11-15 Thread Pedro Vale Estrela



 Pedro
 
 Your comments are much appreciated but unfortunately have left me, as
 a newcomer to NS2 (as well as C++ and Tcl), as unclear as I was.  If

I see. But please be aware that NS2 requires a lot of effort to be able to
do anything. In my case, I've even spend a lot of weeks for even putting the
contributed software to compile.

 you have added a patch (which I have located) recently to enable pkt
 colouring in wireless scenarios it would suggest that visualisation of
 pkt movement within wireless networks is now supported in NS2 and that
 this is not just an aspect of the DCCP patch. Is this correct?
Exactly. 

 Can you direct me to an example of a reasonably simple sample code
 that implements nam visualisation of pkt movements  drops or, if you
 are familiar with Marc Gries' tutorials tell me what is missing from
 them or needs to be added to them to be able to see pkt movements in
 nam.
I've volunteered to upgrade the NS2 tutorial, but cannot do this in the very
short term. You can trust that such will be the first thing I'll look, when
I can.

You can send me the .tcl file for TCP and DCCP, and I'll look into it
faster.


 Regretably I have knowledge of what L2 and L3 logging you are
 referring to, I'm still operating at a higher level at the moment!
I'm talking of dumping more trace information to the file, of application
layer and other layers also. Such is selectable in the NS2 tracing
facilities.






[ns] [ANNOUNCE] [NS2] Announcing IST-CIMS IP micro-mobility suite for NS2-2.31

2007-11-12 Thread Pedro Vale Estrela


Dear NS2 Researchers, 

This is to announce the posting of the IST-CIMS IP micro-mobility suite
package, upgraded and tested for NS2.31.

This package includes the eTIMIP and TIMIP protocols, and upgraded v2.31
versions of the CIP, HMIP and HAWAII protocols from the original CIMS code
(from ns2-1b5). 

This package also features NOAH for v2.31, and a common test framework for
all protocols in multiple scenarios.

Any comments and fixes regarding this software, or the associated eTIMIP
research work, are very welcome!!


Best Regards
Pedro Vale Estrela

---

Download link:
http://tagus.inesc-id.pt/~pestrela/ns2/?g=ist-cims.html

NS2 IP mobility info page:
http://tagus.inesc-id.pt/~pestrela/ns2/?g=mobility.html

Associated eTIMIP Scientific Papers:
http://tagus.inesc-id.pt/~pestrela/timip

“Design and Evaluation of eTIMIP - Overlay Micro-Mobility Architecture based
on TIMIP”, P. Estrela, T. Vazão, M. Nunes, International Conference on
Wireless and Mobile Communications (ICWMC 2006), July 2006 







Re: [ns] Different version of NS in same Linux OS

2007-11-09 Thread Pedro Vale Estrela

No

Just install the allinone is a different directory.

_With experience_, is actually pretty trivial to use several ns2 versions
using a single allinone


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Livian Zah
 Sent: sexta-feira, 9 de Novembro de 2007 15:11
 To: NS-User
 Subject: [ns] Different version of NS in same Linux OS
 
 
 Hello
 
   Is it possible to install two NS-version in same Linux OS. Do i need to
 make any change in .bashrc file ?
 
   Plz try to help. Thanks in advance.
 
  __
 Do You Yahoo!?
 Tired of spam?  Yahoo! Mail has the best spam protection around
 http://mail.yahoo.com




Re: [ns] a loop or a start and stop methods

2007-11-08 Thread Pedro Vale Estrela


You need to schedule a tcl proc which: 
a) does ping send  
b) reschedule itself for 1 second later

this is a simple 4 line TCL proc!

you can also do this in c++ only by using a timer object, for the same
purpose. This will require recompilation and c++ debugging.

Pedro Estrela
http://tagus.inesc-id.pt/~pestrela





 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Nabila khedimi
 Sent: quinta-feira, 8 de Novembro de 2007 18:16
 To: ns-users@ISI.EDU
 Subject: [ns] a loop or a start and stop methods
 
 
 
 Hi,
 I want to execute a ping agent continuously during the simulation,
 regarding the schedular object in NS, is there any the difference between
 making a infinite loop inside the tcl code or define a start and a stop
 method inside the ping agent code(which is a c++ program)
 Thanks for help
 Nabila
 




Re: [ns] How to colour nam simulations??

2007-11-07 Thread Pedro Vale Estrela


I've just posted the solution to the dev list also.

Apply these 2 patches, and set the packet color for wireless exactly as you
do in wired links.

http://tagus.inesc-id.pt/~pestrela/ns2/files/namtrace_precision_time.patch
http://tagus.inesc-id.pt/~pestrela/ns2/files/namtrace_wireless_colors.patch


Regards,
Pedro Estrela
http://tagus.inesc-id.pt/~pestrela/ns2




 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Jamal Toutouh
 Sent: quarta-feira, 7 de Novembro de 2007 15:51
 To: NS-users list
 Subject: [ns] How to colour nam simulations??
 
 
 Dear all,
 
 How are you?
 
 I want to show some simulations using NAM, but the problem is that I want
 to show
 the different packets that are created by diferent nodes with different
 colours.
 
 I am simulating mobil nodes that uses wifi connections.
 
 Thank you...
 
 
 Jamal Toutouh El Alamin
 NEO Group - Networking and Emerging Optimization
 University of Malaga
 
 Phone: (+34) 952 13 33 03
 
 Addres:
 E.T.S Ingenieria Informatica
 Complejo Tecnologico, Lab. 3.3.4b
 Campus de Teatinos
 29071 Malaga, Spain
 -
 
 
 
 
 
 __
 Pregunta, Responde, Descubre.
 Comparte tus consejos y opiniones con los usuarios de Yahoo! Respuestas
 http://es.answers.yahoo.com/info/welcome




Re: [ns] need tcl script showing voice codec implementation

2007-09-18 Thread Pedro Vale Estrela


Hi

Can you please explain in a single email which topics are you asking for
help, instead of sending countless seperated messages??

Pedro Estrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Brenda Lindsay Williams
 Sent: terça-feira, 18 de Setembro de 2007 16:57
 To: ns-users@ISI.EDU
 Subject: [ns] need tcl script showing voice codec implementation
 
 
 Can someone pls give me a script showing voice codec implementation in
 NS2?
 I'm working with G.711, but any available one based on the H.323 standard
 will be greatly appreciated.
 Thanks.
 
 regards,
 
 Brenda




[ns] FW: gdb debugger

2007-09-17 Thread Pedro Vale Estrela



Its almost impossible to do it at the same time. Read all my debugging tips
then feel free to ask questions.

Also, use DDD!
http://tagus.inesc-id.pt/~pestrela/ns2/

Pedro Estrela




 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Elahe Alipour
 Sent: segunda-feira, 17 de Setembro de 2007 11:23
 To: ns-users@ISI.EDU
 Subject: [ns] gdb debugger
 
 
 **
 **
   Hi all
   I installed gdb debugger and it ran commands like list, break. but i
 can't use it properly. i want to cross debug TCL and c++ and step through
 each line of C++ and TCL code.
 but i don't know how do this. i searched in ns mailing list but i didn't
 find a suitable solution.
   can anybody help me? thanks
 
   best regards
 elahe
 
 **
 
 
 
 -
 Don't let your dream ride pass you by.Make it a reality with Yahoo!
 Autos.





Re: [ns] installation problem

2007-09-10 Thread Pedro Vale Estrela



http://www.google.pt/search?source=ighl=pt-PTq=bash%3A+ns+command+not+foun
dmeta=


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of sparsh attre
 Sent: segunda-feira, 10 de Setembro de 2007 13:25
 To: ns-users@ISI.EDU
 Subject: [ns] installation problem
 
 
 hi
 i m facing a little problen in the installation of ns2.31 on fedora 5
 it is installing properly but when i validate it thn it takes approx 45 -
 50
 mins  and says that all tests have been passed
 but whn i type ns on the command prompt it reflects an error saying
 bash: ns command not found
 can u get me out of this particulr problem?




Re: [ns] Movement of nodes should be modifiable during runtime of an ns-2 simulation

2007-08-22 Thread Pedro Vale Estrela

Yes, looked at this issue, and the only way to do it in run-time is to use
emulation!

If the movement customization did not require run-time, it would be a simple
problem - the first program would just generate a movement file according to
some parameters.

Pedro Estrela
http://tagus.inesc-id.pt/~pestrela/ns2



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Daniel Mahrenholz
 Sent: quarta-feira, 22 de Agosto de 2007 15:46
 To: Schuenemann, Bjoern
 Cc: ns-users@ISI.EDU
 Subject: Re: [ns] Movement of nodes should be modifiable during runtime of
 an ns-2 simulation
 
 
 Hi Bjoern,
 
 Schuenemann, Bjoern schrieb:
  I'd like to make a simulation with ns-2 where the movement of the nodes
 is modifiable by another program during the runtime of the ns-2
 simulation. How could I realize this? It seems that modifications of trace
 and movement files are ignored by ns-2 after the files are read in by the
 TCL script
 I think the problem is that after reading the movement files all events
 that actually control the movement are already in the event queue.
 
 One of my students implemented an external movement control some years
 ago for the emulation mode. Basically he adds a listening socket that
 takes simulator control commands from an external program, converts them
 to TCL code and evaluates them. Then he ran the simulation for an
 infinite time (and send a stop command from the external controller to
 exit) and could move the nodes around as he liked.
 
 But, this only works in emulation mode. The reason is, if you are in the
 normal simulation mode, time will jump from event to event. And if there
 is the last movement event in the queue, the simulator possibly will
 jump to the final stop event and quit. So, only emulation ensures that
 your simulation time does not runs too fast.
 
 I took a quick look but could not find the diploma thesis / code of the
 student. I will spend more time searching if you like. Title of the
 thesis was  Eine dynamische WLAN-Emulationsumgebung auf Basis des
 NS-2, Thomas Kiebel, Diplomarbeit, 2005.
 
 Daniel.
 
 --
 Dr.-Ing. Daniel Mahrenholz
 rt-solutions.de GmbH
 Oberländer Ufer 190a
 D-50968 Köln
 
 Web: www.rt-solutions.de
 
 rt-solutions.de
 networks you can trust.




Re: [ns] hierarchical addressing and number of nodes

2007-06-11 Thread Pedro Vale Estrela


I have a proc in my page that does this in a very easy way!
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html

Pedro vale estrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Sérgio Alexandre
 Sent: quinta-feira, 7 de Junho de 2007 11:16
 To: pankaj kumar
 Cc: ns-users@ISI.EDU
 Subject: Re: [ns] hierarchical addressing and number of nodes
 
 
 if you :
 
  # Set NS Addressing
   AddrParams set domain_num_ 9
   AddrParams set cluster_num_ {9 9 9 9 9 9 9 9 9}
   AddrParams set nodes_num_ {9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 etc..}
 
 p. example you will have no problema running your simulation.
 Just raise the numbers.
 
 
 
 
 pankaj kumar wrote:
  Hi All
  i have following hierarchical addressing
 
   # Set NS Addressing
AddrParams set domain_num_ 2
AddrParams set cluster_num_ {1 5}
AddrParams set nodes_num_ {1 1 3 1 1 1}
 
  when i am trying to add new a node to the topology its giving
 segmentation
  fault without changing above NS addressing.
 
  How i can overcome by this this problem ( or i have to change into #Set
 NS
  Addressing??? )
 
  thanks and regards,
  pankaj
 
 




Re: [ns] tcl-debugger cannot use command 'w' to watch call stack

2007-05-20 Thread Pedro Vale Estrela


The tcl-debugger has some bugs.

In pratice, I only use the debugger to stop the code somewhere and inspect
some variables, and NEVER to step trough the code (because the debugger
lacks object TCL capabilities.)

For that, check  http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html

Pedro Vale Estrela





 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of landrew
 Sent: segunda-feira, 21 de Maio de 2007 2:45
 To: ns-users
 Subject: [ns] tcl-debugger cannot use command 'w' to watch call stack
 


hi,everybody

i'am using ns2.31,and i use tcl-debugger2 for debugging.
all things in debugging are ok except that after i use 'w' command to watch
call stack, then when i use the next command , most of the time i'll get a
core dump.
messages are following :

dbg11.5 s
10: if [catch $self cmd $args ret] {
set cls [$self info class]
global err...
dbg10.6 w
 0: application
 1: _o17 {_o17} {MobileNode/ResourceAwareNode} {start-app}
 2: _o26 {_o26} {Application/LEACH} {start}
 3: _o26 {_o26} {Application/LEACH} {mac}
 4: _o26 {_o26} {Application/LEACH} {node}
*5: _o26 {_o26} {SplitObject} {unknown} {agent}
 10: if {0} {
set cls [$self info class]
global errorInfo
set savedInfo $erro...
dbg10.7 s
./leach_test: line 51:  1048 Aborted (core dumped) ns
tcl/ex/wir
eless_leach.tcl -sc mit/uAMPS/sims/nodescen -rp $alg -x $x -y $y -nn $nn
-stop $
stop -eq_energy $eq_energy -init_energy $init_energy -filename $filename
-dirnam
e $dirname -topo $topology_file -num_clusters $num_clusters -bs_x $bs_x
-bs_y $b
s_y 2$dirname/$filename.err



i've installed ns2 and tcl-debugger in cygwin and fc6, I found the same
error.
thanks!







[ns] NOAH: wrong node routing agent!

2007-04-09 Thread Pedro Vale Estrela


My upgraded version of FMIP for ns2.31 includes the NOAH agent as well.
http://tagus.inesc-id.pt/~pestrela/ns2/mobility.html#_Toc147660119



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Akhilesh Kumar
 Sent: segunda-feira, 9 de Abril de 2007 4:42
 To: ns-users@ISI.EDU
 Subject: [ns] NOAH: wrong node routing agent!
 
 
 I configured the NOAH protocol in my NS2.31 according to given code.
 but is still giving error wrong node routing agent!
 
 
 
 Makefile.inadd noah/noah.o \ to OBJ_CC and tcl/mobility/noah.tcl \
 to
 NS_TCL_LIB
 noah/noah.{h,cc}  add noah.h and noah.cc to a new subdirectory noah/
 tcl/mobility/noah.tcl add noah.tcl to tcl/mobility/
 tcl/lib/ns-lib.tclline 191 (for v2.29 line 197): add source
 ../mobility/noah.tcl
 line 603ff (for v2.29 line 649ff): add
 
   NOAH {
   set ragent [$self create-noah-agent $node]
   }
 
 line 768ff (for v2.29 line 839ff): add
 
 Simulator instproc create-noah-agent { node } {
 # Create a noah routing agent for this node
 set ragent [new Agent/NOAH]
 
 ## setup address (supports hier-addr) for noah agent
 ## and mobilenode
 set addr [$node node-addr]
 
 $ragent addr $addr
 $ragent node $node
 
 if [Simulator set mobile_ip_] {
 $ragent port-dmux [$node demux]
 }
 $node addr $addr
 $node set ragent_ $ragent
 return $ragent
 }
 
 _
 Voice your questions and our experts will answer them
 http://content.msn.co.in/Lifestyle/AskExpert/Default01.htm





Re: [ns] compilation of .cc file

2007-04-09 Thread Pedro Vale Estrela



 Since people constantly fail to report in a useful manner, I've written a
 little howto post the user's mailing-list entry in the ns-wiki.
 

good work. Added links to my otcl and c++ debugging, and How To Ask
Questions The Smart Way








Re: [ns] problem with Scheduler(please see this code and tell memistake)

2007-03-22 Thread Pedro Vale Estrela



$ns at 0.2 global k; set k 4
$ns at 0.3 glonal k; puts \k=$k\  


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Amin Irandoost
 Sent: quinta-feira, 22 de Março de 2007 15:18
 To: ns-users@ISI.EDU
 Subject: [ns] problem with Scheduler(please see this code and tell
 memistake)
 
 
 hi all
 what is problem this code?
 
 set k 0
 
 $ns at 0.2 set k 4
 
 $ns at 0.3 puts \k=$k\print 0 lieu 4 on screen !!!
 
 
 Thanks in advance
 
 --
 Amin Irandoost




Re: [ns] FHMIP - anyone got the FHMIP extension to work? (coded by Robert Hsieh)

2007-03-22 Thread Pedro Vale Estrela

 

I’m not sure, but I think this error can be corrected by applying this patch
that I’ve described here:

http://mailman.isi.edu/pipermail/ns-users/2004-September/044531.html

 

(also see my nest post about FHMIP for ns2.31)

 

Pedro Vale Estrela

 

 

-Original Message-
From: shayma sinan [mailto:[EMAIL PROTECTED] 
Sent: quinta-feira, 22 de Março de 2007 2:05
To: [EMAIL PROTECTED]
Subject: Re: FHMIP - anyone got the FHMIP extension to work? (coded by
Robert Hsieh)

 

Hi,

I am also facing a problem in running FHMIP package under ns2.28

i got the same error mentioned here

http://mailman.isi.edu/pipermail/ns-users/2005-August/051595.html

without modifying (simula.tcl)

 

hope you can find somebody to help... good luck!

 

regards,

Shayma

Pedro Vale Estrela [EMAIL PROTECTED] wrote:


Hi all,
Previously, I've asked in the NS2 list if anyone had a copy of Robert
Hsieh's FHMIP NS2 extension for NS2.1b7; with the reply, I've updated my NS2
mobility page with the available source code:
http://tagus.inesc-id.pt/~pestrela/ns2/mobility.html#_Toc147660119

Currently, I'm trying to upgrade and put this extension to work. 
I've already got it compiling in NS2.31, but when I run the __unmodified__
example (simula.tcl), I got this failed assertion:


BS Setting up encapsulate mechanism [1.0.1]-[2.0.0]
7.093759 HA 1.0.0 updated (FA 2.0.0), packet 32
7.150404 BS 3.1.0 received reply from BS 1.0.0, packet 32
mipmh-coa_ 2.0.0 nodeaddr 3.1.0 
ns: mobile/mip-reg.cc:261: virtual void MIPBSAgent::recv(Packet*, Handler*):
Assertion `miph-coa_ == nodeaddr' failed.
Aborted (core dumped)


This happens in this part of the code:


case MIPT_REG_REPLY:
{
#ifndef MIP_QUIET
printf(%f BS %s received reply from BS %s, packet %i\n,
Scheduler::instance().clock(),
Address::instance().print_nodeaddr(addr()),
Address::instance().print_nodeaddr(iph-saddr()), ch-uid());
// JCW
#endif 

assert(miph-coa_ == nodeaddr); //  crashes here
tcl.evalf(%s get-link %d %d, name_, nodeaddr, miph-haddr_);
//
// XXX hacking mobileip. all this should go away
// when mobileIP for sun-wired model is no longer reqd.
//
...


Thus, my questions are: 
a) has somebody got an working FHMIP extension? 
b) Is it necessary to modify simula.tcl or mip-reg.cc use another simulation
scenario, as to avoid this bug?

If yes, please send me the modified code and I'll upgrade it to ns2.31, and
give credit to the person in my NS2 mobility page.

Pedro Vale Estrela



 

  

  _  

Web email has come of age. Don't settle for less than the All
http://us.rd.yahoo.com/mail/uk/taglines/gmail_com/nowyoucan/web_mail/*http:
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Yahoo! Mail.



Re: [ns] Protocol

2007-03-22 Thread Pedro Vale Estrela

Have you asked of for the BCMP NS2 code to the authors of this paper?
http://comet.columbia.edu/~zoltan/ist_brain.pdf

one of them is from the same university as you...

Pedro Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Kok-Seng A. Hew
 Sent: quarta-feira, 21 de Março de 2007 19:28
 To: ns-users@ISI.EDU
 Subject: Re: [ns] Protocol
 
 
 Hi All,
 
 
 
 I was wondering if anyone had the simulation code for the BCMP protocol or
 similar protocol of sorts.
 
 
 
 Network
 
 
 
 Domain 1
 Domain 2
 
 
 
 
 
 Access Network 1  AN2  AN3
 AN4
 
 
 
 
 
 Each access network has two access points (AP)
 
 
 
 The mobile host moves fro AP1 to AP2 to AP3 and so forth.
 
 
 
 
 
 Kok-Seng A. Hew
 
 Undergraduate
 
 B.Eng Electrical Engineering
 
 
 
 King's College London
 
 Strand,
 
 London
 
 WC2R 2LS
 
 England
 
 United Kingdom
 
 
 
 Mobile: +44(0) 7775 755232
 
 E-mail:  mailto:[EMAIL PROTECTED] [EMAIL PROTECTED]
 
 




[ns] PRELIMINARY FHMIP upgraded for ns2.31

2007-03-22 Thread Pedro Vale Estrela


PRELIMINARY FHMIP upgraded for ns2.31

I've upgraded the Robert Hsieh's FHMIP code in order to compile in latest
ns2.31. I've also added to it the modifications detailed in appendix B of
this report (Handover Blackout Duration of Layer 3 Mobility Management
Schemes,
http://www.tkn.tu-berlin.de/publications/papers/Handover_Blackout_Duration_o
f_L3_Mobility_Management_Schemes1.pdf)

However, when I've tried the HMIP part of the extension (the MAP), the
simulation continues to crash in a failed assert; however, I've tried the
FMIP part alone, and it seems to run OK.

__Please note that I did not test this extension any further__ 

To install: 
first, install NS-allinone-2.31; 
then, uncompress and apply the patch
(http://tagus.inesc-id.pt/~pestrela/ns2/files/ns2.31_fhmip.patch.gz)
, then reconfigure and recompile ns2 again. 
The original FHMIP example is located in /tcl/ex/fhmip 

ns2.31  cat ns2.31_fhmip.patch | patch -p1

ns2.31  ./configure --enable-debug

ns2.31  make

ns2.31/tcl/ex/fhmip  ../../../ns fhmip_simula.tcl


__again, Please note that I did not test this extension any further__

Pedro Vale Estrela
http://tagus.inesc-id.pt/~pestrela/ns2/mobility.html#_Toc147660119




 Pedro Vale Estrela schrieb:
  Hi all,
  Previously, I've asked in the NS2 list if anyone had a copy of Robert
  Hsieh's FHMIP NS2 extension for NS2.1b7; with the reply, I've updated my
 NS2
  mobility page with the available source code:
  http://tagus.inesc-id.pt/~pestrela/ns2/mobility.html#_Toc147660119
 
  Currently, I'm trying to upgrade and put this extension to work.
  I've already got it compiling in NS2.31, but when I run the
 __unmodified__
  example (simula.tcl), I got this failed assertion:
 
  
  BS Setting up encapsulate mechanism [1.0.1]-[2.0.0]
  7.093759 HA 1.0.0 updated (FA 2.0.0), packet 32
  7.150404 BS 3.1.0 received reply from BS 1.0.0, packet 32
  mipmh-coa_ 2.0.0   nodeaddr  3.1.0
  ns: mobile/mip-reg.cc:261: virtual void MIPBSAgent::recv(Packet*,
 Handler*):
  Assertion `miph-coa_ == nodeaddr' failed.
  Aborted (core dumped)
  
 
  This happens in this part of the code:
 
  
  case MIPT_REG_REPLY:
  {
  #ifndef MIP_QUIET
  printf(%f BS %s received reply from BS %s, packet %i\n,
  Scheduler::instance().clock(),
 Address::instance().print_nodeaddr(addr()),
 Address::instance().print_nodeaddr(iph-saddr()), ch-uid());
  // JCW
  #endif
 
  assert(miph-coa_ == nodeaddr); //  crashes here
  tcl.evalf(%s get-link %d %d, name_, nodeaddr, miph-haddr_);
  //
  // XXX hacking mobileip. all this should go away
  // when mobileIP for sun-wired model is no longer reqd.
  //
  ...
  
 
  Thus, my questions are:
  a) has somebody got an working FHMIP extension?
  b) Is it necessary to modify simula.tcl or mip-reg.cc use another
 simulation
  scenario, as to avoid this bug?
 
  If yes, please send me the modified code and I'll upgrade it to ns2.31,
 and
  give credit to the person in my NS2 mobility page.
 
  Pedro Vale Estrela
 
 
 




Re: [ns] Disable ARP

2007-03-21 Thread Pedro Vale Estrela



This is interesting. In my particular simulation, neither version works:

mac_-hdr_dst((char*) HDR_MAC(p), ch-next_hop());

or 

mac_-hdr_dst((char*) HDR_MAC(p), dst);

However, the code that I've sent you always works, and does this:

When arp wants to resolve an IP address, it:
a) finds the host that has that IP address, 
b) goes to the first MAC interface, 
c) and returns its mac address.

To ease the coding of this stuff, I'm doing this via otcl, where is MUCH
easier (1) to do this kind of stuff, that depends on global variables, etc;
If speed is a problem (this happens for every forwarded packet), it could be
done in C++ only, of course.


Pedro Vale Estrela


Note 1: this only happens after one has major experience hacking otcl code!


 -Original Message-
 From: Ahmad Khayyat [mailto:[EMAIL PROTECTED]
 Sent: quarta-feira, 21 de Março de 2007 0:51
 To: [EMAIL PROTECTED]
 Subject: Re: [ns] Disable ARP
 
 Hi Pedro,
 
 Thank you for the valuable help.
 Actually, I am using the following three lines at the top of
 ARPTable::arpresolve
 with no problems so far. They just happened to trigger another nasty
 bug in my code that I like to believe I have taken care of ;)
 
 hdr_cmn *ch = HDR_CMN(p);
 mac_-hdr_dst((char*) HDR_MAC(p), ch-next_hop());
 return 0;
 
 I am using this with both NOAH and AODV over significantly modified
 WPAN MAC.
 
 I appreciate you sharing your fix with me, and will keep it in mind in
 case problems arise later.
 
 Regards,
 Ahmad
 
 On Tue, 20 Mar 2007 23:29:38 -
 Pedro Vale Estrela [EMAIL PROTECTED] wrote:
 
 
  I've got the same problem, and using this code does not solve the
  problem for all cases (in my particular simulation)
 
  Instead, I'm using this with great success:
 
  In C++, at the top of  ARPTable::arpresolve , insert this code that
  requires #include utils_ns.h (see
  http://tagus.inesc-
 id.pt/~pestrela/ns2/contributed_code.html#_Toc147652229)
 
  --- cut here ---
 
  TCL_EVALFr(ARP_find_mobile_iaddr2mac %d, dst);
  LL *ll = (LL *)TclObject::lookup(Tcl::instance().result());
 
  if(!ll){
  dprintf(Error: LL empty\n);
  exit(-1);
  }
 
  int mac = ll-mac_-addr();
  mac_-hdr_dst((char*) HDR_MAC(p), mac);
  return 0;
 
  --- cut here ---
 
 
  then, add this tcl code to your script or /tcl/lib/ns-lib.tcl. I'm
  not sure, but this code MIGHT require the NOAH extension because that
  for {set i 0} { $i  [Node set nn_] loop.
 
 
  --- cut here ---
 
 
  # Given the node handle, return the haddr, iaddr or ID
  proc NOAH_handle2iaddr { handle } {
 
  if { $handle == -1 } {
  return -1
  }
 
  set iaddr [$handle address?]
  return $iaddr
  }
 
 
 
  #
  # Given the node's address in haddr, iaddr or ID, search and return
  the handle
  # (TODO:) create an array at creation to store these pairs for faster
  lookup #
  proc NOAH_iaddr2handle { node_iaddr } {
  if { $node_iaddr == -1 } {
  return -1
  }
 
  set ns_ [Simulator instance]
 
  for {set i 0} { $i  [Node set nn_]} {incr i} {
  set node_handle [$ns_ set Node_($i)]
 
  if {[string compare [NOAH_handle2iaddr $node_handle]
  $node_iaddr] == 0} {
  return $node_handle
  }
  }
 
  return -1
  }
 
 
  ##
  ## PROC: returns the handle of a given NODE, by its iaddress
  ##
 
  ## FIXME: assume itf(0), codigo C++ devolve mac dessa interface
  ##
  ## this code is used by the disabled ARP (option 2)
  proc ARP_find_mobile_iaddr2mac { iaddr } {
  set ns_ [Simulator instance]
  set MH_node_handle [NOAH_iaddr2handle $iaddr]
 
  set ll [$MH_node_handle set ll_(0)]
 
  #puts found: $MH_node_handle $ll
  return $ll
  }
 
  --- cut here ---
 
 
 
 
 
 
  -
 
  Re: [ns] Disable ARP
  Ahmad Khayyat
  Wed, 28 Feb 2007 02:27:15 -0800
 
  Never mind.
  The two lines work perfectly. They just happened to trigger another
  problem, which is taken care of now :)
 
  On Tue, 27 Feb 2007 18:27:37 -0500
  Ahmad Khayyat [EMAIL PROTECTED] wrote:
 
   What is the easiest way to disable the use of the ARP protocol?
   I guess the IP address corresponds to the MAC address in ns-2,
   doesn't it? So how do I make the LL/ARP modules use it immediately
   without using ARP?
  
   I tried adding the following two lines at the top of
   ARPTable::arpresolve(nsaddr_t dst, Packet *p, LL *ll)
  
   mac_-hdr_dst((char*) HDR_MAC(p), dst);
   return 0;
  
   but that caused strange behaviour on rare occasions, where a packet
   suddenly would appear in another far node. Playing with ARP doesn't
   explain the problem for me, but somehow removing those two lines
   gets rid of the strange behaviour. So, what is a proper way of
   disabling ARP?
  
   Thanks..
   Ahmad
 




Re: [ns] Error in Object!!

2007-03-21 Thread Pedro Vale Estrela



You must either 

a) define the int hdr_akisprotocol_pkt::offset_ global variable in your
code. Check /common/packet.h for more details

or 

b) use the #define OFFSET(type, field) macro to do the same trick

this must be explained in the ns2 manual in the part of creating new headers

also check:
http://www.isi.edu/nsnam/ns/tutorial/nsnew.html#first

in this part: The int 'off_ping_' will be used to access a packet's ping
header.

Pedro Vale Estrela


 -Original Message-
 From: Ioakeim Samaras [mailto:[EMAIL PROTECTED]
 Sent: quarta-feira, 21 de Março de 2007 11:02
 To: Pedro Estrela
 Subject: Error in Object!!
 
 Hello. I would like to thank you for your help. I read carefully the pdf
 file from the location :
 http://masimum.dif.um.es/nsrt-howto/pdf/nsrt-howto.pdf
 I followed all the steps described there for making my own protocol. I
 named the protocol instead of protoname, akisprotocol. I tried to
 compile it, and the compiler could not continue because of some small
 errors in the C++ code. I correct all that errors and I compile it again
 in both ns-2.27 and ns-2.30. But now the compiler says that there exist
 errors in object files. More specific, in both ns-2.27 and ns-2.30,
 after executing : touch common/packet.cc , make ,  I receive the
 following message :
 
 trace/cmu-
 trace.o(.gnu.linkonce.t._ZN20hdr_akisprotocol_pkt6accessEPK6Packet+0xb):
 In function `hdr_akisprotocol_pkt::access(Packet const*)':: undefined
 reference to `hdr_akisprotocol_pkt::offset_'
 akisprotocol/akisprotocol.o(.gnu.linkonce.t._ZN23akisprotocolHeaderClassC1
 Ev+0x28):
 In function
 `akisprotocolHeaderClass::akisprotocolHeaderClass[in-charge]()'::
 undefined reference to `hdr_akisprotocol_pkt::offset_'
 collect2: ld returned 1 exit status make: *** [ns] Error 1
 
 I also executed : configure, make clean, make ,   but still it finds the
 same errors.
 
 I don't know how to solve this problem. Previously the compiler found
 errors in  .cc and .h  files which I corrected them all. But now it
 finds errors in object files(.o).
 I am quite disappointed.  Can you  help me please?  Any help would be
 appreciated. Thank you.
 
 --
 Need cash? Apply now for a credit loan with fast approval
 http://tags.bluebottle.com/fc/CAaCMPJkvYIjBVjuielxhxyKD5MUIXe4/




Re: [ns] No data transmission at all! Can you help me?

2007-03-21 Thread Pedro Vale Estrela


Hi
I've done this kind of stuff many times in the past 
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_beginners.html#_Toc128325750

I guess that you did not cloned ALL references from RED to MY_RED.

Do this to find all references to red:
ns grep -d recurse -I red 

failing that, add breakpoints in DDD to check what parts of the code are
actually being executed in the simulation; you'll be surprised if packets
are dropped before your code, before your red classifier is invoked.

Pedro Vale Estrela




 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of karen.yunqiu lee
 Sent: quarta-feira, 21 de Março de 2007 12:09
 To: ns-users@ISI.EDU
 Subject: [ns] No data transmission at all! Can you help me?
 
 
 Dear all,
 I've copied and modified red.h/.cc and added myred.h/.cc to NS. Other
 necessary changes have been done to the ns-default.tcl, etc.
 When making the files, there was no error at all. But during tcl
 simulation,
 the network was completely silent. There was no even one packet transferd.
 After I changed the queue management method in the router node in tcl from
 myred to RED, the network was alive and kicking again.
 I would like to be sure that this is only because of myred.cc/.h not any
 other modifications I've done, right? And why couldn't I get any notice
 when
 making files?
 And, usually, what error will cause this 0 packet transmission during
 simulation?
 :(
 
 Kind regards,
 KL
 
 _
 Get Hotmail, News, Sport and Entertainment from MSN on your mobile.
 http://www.msn.txt4content.com/




Re: [ns] ns/nam: respresentation problem when definingposition-fixed nodes (NEW question)

2007-03-21 Thread Pedro Vale Estrela


I' tried to add XY coordinates for wired nodes, but nam doesn't support this
facility.

Instead, I achieve the same result by setting the length of the wired links
via their delay

Pedro Vale Estrela
http://tagus.inesc-id.pt/~pestrela/ns2





 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Javier Chicote
 Sent: quarta-feira, 21 de Março de 2007 17:00
 To: ns-users@ISI.EDU
 Subject: Re: [ns] ns/nam: respresentation problem when definingposition-
 fixed nodes (NEW question)
 
 
 Hi ns-users,
 
 I learnt that the previous problem can be solved by using 'orient'
 method at the link definition. However, this solution is not enough when
 defining more complex structures. The next figure shows 4 nodes standing
 in the imaginary vertexes of a square, which are all of them connected to
 a master node like it is shown in the next picture:
 
  node(1,0)node(1,1)
   (0,100) (100,100)__
  \___\__
  \___   \_
  \___ master
_/(200,50)
  _/ _/
 /  /
 (0,0)   (0,100)
  node(0,0)   node(100,0)
 
 --- What I would like to know is if it is possible (or not) to define the
 geographic position of the nodes when the coordinates of them are known in
 a wired scenario, or other ideas to solve the problem.
 
 This is the code of the file:
 
 # Network configuration (x,y):## node(1,0)node(1,1)#  (0,100)
 (100,100)__# \___\__ # \___
 \_# \___ master#
 _/(200,50)# _/ _/#/
 /   #(0,0)   (0,100)# node(0,0)   node(100,0)#
 # Create a simulator instanceset ns [new Simulator]
 # Open the NAM trace fileset namfile [open position-out.nam w]$ns
 namtrace-all $namfile
 set rows2   ;# number of rowsset cols2
 ;# number of nodes per row
 # Define nodesfor {set i 0} {$i  $rows} {incr i} {for {set j 0}
 {$j  $cols} { incr j } {set node($i,$j) [$ns node]
 }}set master [$ns node]
 # Provide initial (X,Y,Z) co-ordinates for nodesfor {set i 0} {$i  $rows}
 {incr i} {set xj 0.0for {set j 0} {$j  $cols} { incr j }
 {$node($i,$j) set X_ $xjif {$i == 0} then
 { $node($i,$j) set Y_ 0.0} elseif {$i == 1} then {
 $node($i,$j) set Y_ 100.0 } $node($i,$j) set Z_ 0.0
 set xj [expr $xj + 200]}}$master set X_ 200.0$master set Y_
 50.0$master set Z_ 0.0
 # Define links between nodes$ns duplex-link $node(0,0) $master 1Mb 100ms
 DropTail$ns duplex-link $node(0,1) $master 1Mb 100ms DropTail$ns duplex-
 link $node(1,0) $master 1Mb 100ms DropTail$ns duplex-link $node(1,1)
 $master 1Mb 100ms DropTail
 # Define link orientation$ns duplex-link-op $node(0,0) $master orient
 rigth-up$ns duplex-link-op $node(0,1) $master orient rigth$ns duplex-link-
 op $node(1,0) $master orient rigth$ns duplex-link-op $node(1,1) $master
 orient rigth-down
 # Define a 'finish' procedureproc finish {} {global ns tracefile
 namfile$ns flush-traceclose $namfile exec nam
 position-out.nam exit 0}
 # Stop the simulation$ns at [expr 5.0 - 0.01] puts \Stopping
 Simulation...\ $ns at 5.0 finish ; $ns halt
 # Start the simulationputs Starting Simulation...$ns run
 
 
 
 - Mensaje original 
 De: Javier Chicote [EMAIL PROTECTED]
 Para: ns-users@isi.edu
 Enviado: miércoles, 21 de marzo, 2007 11:36:06
 Asunto: ns/nam: respresentation problem when defining position-fixed nodes
 
 Hi ns-users,
 
 I would like to simulate a position-fixed wired network with 2 lines and 3
 nodes per line, like it is shown above. The distance between the nodes
 should be 100 units (for example), so the first node of the matrix will be
 in (x=0,y=0) and the last node in (x=100, y=200).
 
  node(1,1) node(1,2)node(1,3)
   (100,0)__(100,100)(100,200)
   |||
   |||
   |||
   |||
 (0,0)(0,100)__(0,200)
  node(0,1) node(0,2)node(0,3)
 
 When I do not define the links, the nodes are shown correctly in NAM
 (without lines between them), but when I make some of the link definitions
 (lines 46-48 of the above code), the structure of the network changes, and
 it is shown as a straight line.
 
 I know that I
  could manually edit the position of the nodes by clicking on the
 Edit/View button in NAM, but I would like to build the structure of the
 network automatically for future bigger structures, where it is not
 affordable to edit them manually.
 
 How could I solve the problem??
 
 Many thanks in advance,
 
 Regards,
 
 Javi
 
 
 # Network configuration (x,y):## node(1,1

[ns] FHMIP - anyone got the FHMIP extension to work? (coded by Robert Hsieh)

2007-03-21 Thread Pedro Vale Estrela


Hi all,
Previously, I've asked in the NS2 list if anyone had a copy of Robert
Hsieh's FHMIP NS2 extension for NS2.1b7; with the reply, I've updated my NS2
mobility page with the available source code:
http://tagus.inesc-id.pt/~pestrela/ns2/mobility.html#_Toc147660119

Currently, I'm trying to upgrade and put this extension to work. 
I've already got it compiling in NS2.31, but when I run the __unmodified__
example (simula.tcl), I got this failed assertion:


BS Setting up encapsulate mechanism [1.0.1]-[2.0.0]
7.093759 HA 1.0.0 updated (FA 2.0.0), packet 32
7.150404 BS 3.1.0 received reply from BS 1.0.0, packet 32
mipmh-coa_ 2.0.0   nodeaddr  3.1.0 
ns: mobile/mip-reg.cc:261: virtual void MIPBSAgent::recv(Packet*, Handler*):
Assertion `miph-coa_ == nodeaddr' failed.
Aborted (core dumped)


This happens in this part of the code:


case MIPT_REG_REPLY:
{
#ifndef MIP_QUIET
printf(%f BS %s received reply from BS %s, packet %i\n,
Scheduler::instance().clock(),
   Address::instance().print_nodeaddr(addr()),
   Address::instance().print_nodeaddr(iph-saddr()), ch-uid());
// JCW
#endif

assert(miph-coa_ == nodeaddr); //  crashes here
tcl.evalf(%s get-link %d %d, name_, nodeaddr, miph-haddr_);
//
// XXX hacking mobileip. all this should go away
// when mobileIP for sun-wired model is no longer reqd.
//
...


Thus, my questions are: 
a) has somebody got an working FHMIP extension? 
b) Is it necessary to modify simula.tcl or mip-reg.cc use another simulation
scenario, as to avoid this bug?

If yes, please send me the modified code and I'll upgrade it to ns2.31, and
give credit to the person in my NS2 mobility page.

Pedro Vale Estrela





Re: [ns] Please help me

2007-03-20 Thread Pedro Vale Estrela

Normally you want to do the opposite: cal otcl in c++ and get the returned
string.

For that you should use the macros in my file ns_utils.cc
http://tagus.inesc-id.pt/~pestrela/ns2/contributed_code.html#_Toc147652229

eg:
TCL_EVALF(%s some_instproc %d, name(), MH_iaddr);
assert( *TCL_RESULT );
etimip_RO_id = atoi(TCL_RESULT);

--

for your particular problem, you should use the Command() interface that all
c++  objects have


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Amin Irandoost
 Sent: terça-feira, 20 de Março de 2007 22:14
 To: ns-users@ISI.EDU
 Subject: [ns] Please help me
 
 
 hi all
 in general
 
 how to capture return value of c++ function in tcl?
 --
 Amin Irandoost




Re: [ns] Disable ARP

2007-03-20 Thread Pedro Vale Estrela


I've got the same problem, and using this code does not solve the problem
for all cases (in my particular simulation)

Instead, I'm using this with great success:

In C++, at the top of  ARPTable::arpresolve , insert this code that requires
#include utils_ns.h (see
http://tagus.inesc-id.pt/~pestrela/ns2/contributed_code.html#_Toc147652229)

--- cut here ---

TCL_EVALFr(ARP_find_mobile_iaddr2mac %d, dst);
LL *ll = (LL *)TclObject::lookup(Tcl::instance().result());

if(!ll){
dprintf(Error: LL empty\n);   
exit(-1);
}

int mac = ll-mac_-addr();
mac_-hdr_dst((char*) HDR_MAC(p), mac);
return 0;

--- cut here ---


then, add this tcl code to your script or /tcl/lib/ns-lib.tcl. I'm not sure,
but this code MIGHT require the NOAH extension because that 
for {set i 0} { $i  [Node set nn_] loop.


--- cut here ---


# Given the node handle, return the haddr, iaddr or ID
proc NOAH_handle2iaddr { handle } {

if { $handle == -1 } {
return -1
}

set iaddr [$handle address?]
return $iaddr
}



#
# Given the node's address in haddr, iaddr or ID, search and return the
handle
# (TODO:) create an array at creation to store these pairs for faster lookup
#
proc NOAH_iaddr2handle { node_iaddr } {
if { $node_iaddr == -1 } {
return -1
}

set ns_ [Simulator instance]

for {set i 0} { $i  [Node set nn_]} {incr i} {
set node_handle [$ns_ set Node_($i)]

if {[string compare [NOAH_handle2iaddr $node_handle]
$node_iaddr] == 0} {
return $node_handle
}
}

return -1
}


##
## PROC: returns the handle of a given NODE, by its iaddress
##

## FIXME: assume itf(0), codigo C++ devolve mac dessa interface
##
## this code is used by the disabled ARP (option 2)
proc ARP_find_mobile_iaddr2mac { iaddr } {
set ns_ [Simulator instance]
set MH_node_handle [NOAH_iaddr2handle $iaddr]

set ll [$MH_node_handle set ll_(0)]

#puts found: $MH_node_handle $ll
return $ll
}

--- cut here ---






-

Re: [ns] Disable ARP
Ahmad Khayyat
Wed, 28 Feb 2007 02:27:15 -0800

Never mind.
The two lines work perfectly. They just happened to trigger another
problem, which is taken care of now :)

On Tue, 27 Feb 2007 18:27:37 -0500
Ahmad Khayyat [EMAIL PROTECTED] wrote:

 What is the easiest way to disable the use of the ARP protocol?
 I guess the IP address corresponds to the MAC address in ns-2, doesn't
 it? So how do I make the LL/ARP modules use it immediately without
 using ARP?
 
 I tried adding the following two lines at the top of
 ARPTable::arpresolve(nsaddr_t dst, Packet *p, LL *ll)
 
 mac_-hdr_dst((char*) HDR_MAC(p), dst);
 return 0;
 
 but that caused strange behaviour on rare occasions, where a packet
 suddenly would appear in another far node. Playing with ARP doesn't
 explain the problem for me, but somehow removing those two lines
 gets rid of the strange behaviour. So, what is a proper way of
 disabling ARP?
 
 Thanks..
 Ahmad




Re: [ns] [NS-2] The most recent tcl-debug manual

2007-03-19 Thread Pedro Vale Estrela

 

Hi,

 

I've checked your installation manual. It looks great! 

 

Many thanks for the effort of contributing to the ns2 community
documentation; of course that I'll mention your work in my debugging pages!

 

Pedro Vale Estrela

 http://tagus.inesc-id.pt/~pestrela/ns2
http://tagus.inesc-id.pt/~pestrela/ns2

 

 

This semester I updated the tcl-debug installation manual.

..

This manual is written BOTH Linux and cygwin in mind.

This should work both for 2.30, 2.29, and 2.28.

The link is given below.

2.30

 
http://web.umr.edu/~tk424/CpE_EE401_1A_Spring_2007/Handouts/Programs/tclDeb
ugger/tcl-debug_installation_manual.pdf
http://web.umr.edu/~tk424/CpE_EE401_1A_Spring_2007/Handouts/Programs/tclDebu
gger/tcl-debug_installation_manual.pdf

For your convenience, I have included the same manual with previous
versions.

These links are included in the above manual.

2.29

 http://mailman.isi.edu/pipermail/ns-users/2006-January/053760.html
http://mailman.isi.edu/pipermail/ns-users/2006-January/053760.html

2.28

 http://mailman.isi.edu/pipermail/ns-users/2005-June/050495.html
http://mailman.isi.edu/pipermail/ns-users/2005-June/050495.html

 

Tae-Hyung Kim

Ph.D. candidate
Dept. of Electrical  Computer Engineering
University of Missouri, Rolla

Applied Computational Intelligence Laboratory
G11 Emerson Electric Co. Hall
1870 Miner Circle Rolla, MO 65409-0040

 



Re: [ns] help for implementation of the DCCP in NS

2007-03-08 Thread Pedro Vale Estrela


Have you tried this code?
http://lifc.univ-fcomte.fr/~dedu/ns2/


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of zhang victor
 Sent: quarta-feira, 7 de Março de 2007 3:39
 To: ns-users@ISI.EDU
 Subject: [ns] help for implementation of the DCCP in NS
 
 
 Hi,guys:
 
  I am trying to implement the DCCP in NS, does anyone have implemented
 it? and willing to share the source code and the detail implementation
 method.
 
 all the bests
 
 victor zhang




Re: [ns] flooding.tcl (hierarchical network)

2007-03-08 Thread Pedro Vale Estrela



Check my page http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html
about my address conversion functions

Pedro Vale Estrela


Type of Addresses that a node can have in NS2 (hAddr, ID, iAddr, Handle) 
In NS2, a node can be uniquely identified by several forms

the handle is the otcl name; it refers to an object of the form _oXXX,
and because of this, it is the only form can be used to directly call
internal instprocs and variables.
the haddr is the Hierarchical address, on the form X.Y.Z 
the iaddr is the INTEGER hierarchical address, where the haddr string is
simply ENCODED in a 32 bit integer.
the id is the sequential Node ID of the simulator.

The proposed variable names and contents are outlined in the following
table. 
For unknown nodes or in error conditions, the value -1 is generally used. 

http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html

In my ns2_shared_procs.tcl utils tcl file, I introduce procs for all
possible conversions of each form, using the procs handle2iaddr,
handle2haddr, handle2id, etc. 




 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of feel2chat
 Sent: quinta-feira, 8 de Março de 2007 20:52
 To: ns-users@ISI.EDU
 Subject: Re: [ns] flooding.tcl (hierarchical network)
 
 
 Will the problem was in a hierarchical network the addresses are
 represented
 as doted string (i.e. 0.8.1) so you need to convert the address to int in
 the script.
 
 to convert the address use something like this:
 
 set addressObj [[$ns get-AllocAddrBits ] get-Address]
 set ip [$addressObj str2addr $addr]
 
 cheers,
 Z
 
 On 2/25/07, feel2chat  [EMAIL PROTECTED] wrote:
 
  I have been trying to run the flooding.tcl example but using a
  hierarchical network (created using sgb2hierns), yet it didn't work.
 
  It seems the code does not find the right neighbour nodes, I wonder what
  I'm missing?
 
  The example work perfect on a flat network.
 
  Cheers,
  Z
 




Re: [ns] MASH Inspector (nstk?) problems

2007-02-07 Thread Pedro Vale Estrela


Hi

Regarding the nstk, what I've done is to clone the wish.c file from a very
recent TCL distribution (I guess the one that came with NS2.29 all in one),
and merged it with the NS2 code (tclappinit.cc).

a) Can you run the TKcon console? 
http://tagus.inesc-id.pt/~pestrela/ns2/step3.PNG

b) find any simple TK command that works in your wish version, and try it
in nstk. Does it work?

(I've made nstk in a linux PC, running debian distribution and NS_all_in_one
2.29)

Other users that have successfully installed nstk, please comment on this
topic!

Pedro Vale Estrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Andrés Emilio Arcia Moret
 Sent: quarta-feira, 7 de Fevereiro de 2007 17:22
 To: ns-users@ISI.EDU
 Subject: [ns] MASH Inspector (nstk?) problems
 
 
 Hi everyone,
 
 I just did all the steps nicely explained in the Pedro Estrela's
 homepage to work with the debugger. All installation steps work well
 (show no error messages). However, when testing the MASH Inspector as
 indicated, the MASH window starts trembling at the right border and
 couple of seconds later nstk hangs.
 
 I am using a MacBook Pro/OS X and ns-2.30.
 
 I guess is the wish version that the nstk takes by default, which is
 not using plain X11 windows. So, I don't know how to generate an
 nstk with the X11 wish version. This is, at least, to see if the tk
 version is the one with the problem.
 
 Any help would be appreciated.
 
 --
 Andrés Arcia




Re: [ns] MASH Inspector (nstk?) problems

2007-02-07 Thread Pedro Vale Estrela


This is very strange :)

Actually, the screenshot of step 4 is what happens after clicking in one of
the classes; 
This is the first thing that happens, and is exactly like yours 
http://tagus.inesc-id.pt/~pestrela/ns2/step4_very_start.PNG

I can only think of you to upgrade your TK version 
(I'm using 8.4.11, and the guide was made in linux using 8.4.5). You are
currently using 8.4.7.

test b) showed that nstk is processing the TK commands well. 
So, this should be a problem of some command contained in Mash inspector
itself. 
The problem is that MashInspector doesn’t run in wish because it lacks otcl.
(you could try to compile Mash itself, but it will not be easy).

Its probably faster to get a linux machine, patch it according to my guide,
and try the inspector; 
after that, you can evaluate the inspector's capabilities for yourself, and
decide if it is worth the effort to try to find the bug.

Pedro Estrela





-Original Message-
From: Andrés Emilio Arcia Moret [mailto:[EMAIL PROTECTED] 
Sent: quarta-feira, 7 de Fevereiro de 2007 21:36
To: [EMAIL PROTECTED]
Cc: ns-users@isi.edu
Subject: Re: [ns] MASH Inspector (nstk?) problems

Hello,

So far I have done both tests that you requested and both have executed
neatly.

Answer for question a): yes it works.

http://webdelprofesor.ula.ve/ingenieria/amoret/question_a.png   

Answer for question b): yes it works for both. 

http://webdelprofesor.ula.ve/ingenieria/amoret/question_b.png  

However, I get this weird behavior for the MASH inspector. The inspector
shows up when called but once I try to roll down the scrollbar, the whole
thing hangs. Also, from the very beginning the inspector is not showing 
what it should (at least what you show at:
http://tagus.inesc-id.pt/~pestrela/ns2/step4.PNG). By the way, I tried one
script for testing scrollbars in nstk and worked well.

The result is at:

http://webdelprofesor.ula.ve/ingenieria/amoret/smashed_mash.png 

Thanks for your help.
On 2/7/07, Pedro Vale Estrela [EMAIL PROTECTED] wrote:

Hi

Regarding the nstk, what I've done is to clone the wish.c file from a very
recent TCL distribution (I guess the one that came with NS2.29 all in one),
and merged it with the NS2 code (tclappinit.cc ).

a) Can you run the TKcon console?
http://tagus.inesc-id.pt/~pestrela/ns2/step3.PNG

b) find any simple TK command that works in your wish version, and try it 
in nstk. Does it work?

(I've made nstk in a linux PC, running debian distribution and NS_all_in_one
2.29)

Other users that have successfully installed nstk, please comment on this
topic! 

Pedro Vale Estrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] ] On
Behalf
 Of Andrés Emilio Arcia Moret
 Sent: quarta-feira, 7 de Fevereiro de 2007 17:22
 To: ns-users@ISI.EDU
 Subject: [ns] MASH Inspector (nstk?) problems 


 Hi everyone,

 I just did all the steps nicely explained in the Pedro Estrela's
 homepage to work with the debugger. All installation steps work well
 (show no error messages). However, when testing the MASH Inspector as 
 indicated, the MASH window starts trembling at the right border and
 couple of seconds later nstk hangs.

 I am using a MacBook Pro/OS X and ns-2.30.

 I guess is the wish version that the nstk takes by default, which is 
 not using plain X11 windows. So, I don't know how to generate an
 nstk with the X11 wish version. This is, at least, to see if the tk
 version is the one with the problem.

 Any help would be appreciated.

 --
 Andrés Arcia



-- 
--
Andrés Arcia 




Re: [ns] What is error CBK?

2007-02-01 Thread Pedro Vale Estrela


Do:
grep CBK */*

result:
doc/mobility.tex:\item[CBK]  DROP\_RTR\_MAC\_CALLBACK
...
trace/cmu-trace.h:#define DROP_RTR_MAC_CALLBACK   CBK   // MAC
callback



then:
[EMAIL PROTECTED]:C:[cims]$ grep DROP_RTR_MAC_CALLBACK */*
aodv/aodv.cc: drop(p, DROP_RTR_MAC_CALLBACK);
aodv/aodv.cc:drop(p, DROP_RTR_MAC_CALLBACK);
aodv/aodv.cc:drop(p, DROP_RTR_MAC_CALLBACK);
aodv/aodv.cc:drop(p, DROP_RTR_MAC_CALLBACK);
aodv/aodv.cc: drop(p, DROP_RTR_MAC_CALLBACK);
aodv/aodv.cc:   dr


Pedro Vale Estrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Vijay Ghorpade
 Sent: quarta-feira, 31 de Janeiro de 2007 5:39
 To: ns_users
 Subject: [ns] What is error CBK?
 
 
   Hi,
  I am using ns-2.28 mobile nodes and generating a trace file with new-
 trace. In the trace file i found that some packets are getting dropped and
 the reason is CBK.
  What is correct meaning of CBK?
  How to avoid CBK errors in a network?
  Why such type of errors occur?
 
 Regards
 
 Vijay




Re: [ns] (hier-rtg-100.tcl) doesnt run!?

2007-02-01 Thread Pedro Vale Estrela


If that script is not in /tcl/test, it  is not part of the standard test
suites, and thus it can be outdated. 

Try to find the equivalent script (for hierarchial tests) in this directory
that is guaranteed to run

Also, check
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html

Pedro Vale Estrela



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of feel2chat
 Sent: quarta-feira, 31 de Janeiro de 2007 16:36
 To: ns-users@ISI.EDU
 Subject: [ns] (hier-rtg-100.tcl) doesnt run!?
 
 
 Hi,
 
 Each time I run the script hier-rtg-100.tcl (which comes with ns-allinone)
 it gives me the following error, I wonder whats the problem??
 
 =
 Sim.: utime/stime: 147 9stack/heap: -6976 1892352
 Creating hierarchical nodes..
 0...Creating links 0...
 
 (_o3 cmd line 1)
 invoked from within
 _o3 cmd duplex-link-of-interfaces _o14 _o614 5Mb 410ms DropTail
 invoked from within
 catch $self cmd $args ret
 invoked from within
 if [catch $self cmd $args ret] {
 set cls [$self info class]
 global errorInfo
 set savedInfo $errorInfo
 error error when calling class $cls: $args $...
 (procedure _o3 line 2)
 (SplitObject unknown line 2)
 invoked from within
 $ns duplex-link-of-interfaces $n(0) $n(75) $linkBW 410ms DropTail
 (procedure create-hier-topology line 126)
 invoked from within
 create-hier-topology $linkBW
 (file hier-rtg-100.tcl line 15)
 =
 
 Any hints or ideas in solving this annoying problem will be appreciated..
 
 Thank you,
 Zee




Re: [ns] HMIPv6 extension

2007-01-29 Thread Pedro Vale Estrela


The page containing the FHMIP extension is long gone. 
However, recently, a NS2 user has sent me one snapshot of it (check below)

Besides fHMIP, another HMIP extension is also present in the original CIMS
package from Columbia university.

http://tagus.inesc-id.pt/~pestrela/ns2/mobility.html

I'm building and maintaining a full mirror of all NS2 mobility code that I'm
aware of. If anyone has comments on this, or more recent versions, please
contact me!

Pedro Vale Estrela

 
 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of - bagioris -
 Sent: segunda-feira, 29 de Janeiro de 2007 18:25
 To: ns-users@ISI.EDU
 Subject: [ns] HMIPv6 extension
 
 
 hi all,i'm looking for the HMIPv6, FMIPv6 ns-2 extensions.I've seen a lot
 of posts also asking, but no real result...Everyone is mentioning Hsieh's
 implementation, but there's no active linkIf anyone has something, please
 share it...bagioris
 _
 Turn searches into helpful donations. Make your search count.
 http://click4thecause.live.com/search/charity/default.aspx?source=wlmemtag
 line_donation




Re: [ns] node entry?

2007-01-29 Thread Pedro Vale Estrela

You can use my otcl debugger facilities to check the state of the internal
otcl variables after this code

http://tagus.inesc-id.pt/~pestrela/ns2

Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of daft
 Sent: segunda-feira, 29 de Janeiro de 2007 20:16
 To: ns-users@ISI.EDU
 Subject: [ns] node entry?
 
 
 
 Hi
 
 I'm trying to swap out the default classifier in a node for my own agent.
 The following code inserts my agent into the entry point of the node...
 
 # Create CSG
 set agt [new Agent/MyAgent]
 puts Node entry: [$n1 entry] agt entry: [$agt target]
 $ns attach-agent $n1 $agt
 $n1 insert-entry [new RtModule] $agt target
 puts Node entry: [$n1 entry] agt entry: [$agt target]
 
 The final puts statement shows that the entry point of $n1 is correctly
 assigned to $agt, and the agents target is set to the original classifier
 (which is the behaviour I'm after).
 
 However when I send a packet to $n1 the original classifier is invoked
 first, and if I send a packet through $n1 the original classifer is used
 and
 my agent is never invoked.
 
 Any ideas what's going wrong/on?
 
 Thanks
 
 Tim
 
 
 --
 View this message in context: http://www.nabble.com/node-entry--
 tf3138100.html#a8696964
 Sent from the ns-users mailing list archive at Nabble.com.




Re: [ns] How to disable all the trace outputs

2007-01-18 Thread Pedro Vale Estrela


a) Don't call ns trace-all or a similar lines
b) write the trace to /dev/null


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of babak
 Sent: quinta-feira, 18 de Janeiro de 2007 10:47
 To: ns-users@ISI.EDU
 Subject: [ns] How to disable all the trace outputs
 
 
 Dear All,
 
 I'm simulating a wireless network with 500 nodes. I have turned off all
 the trace options in my tcl file. However, still lines are appending to
 the output file and after a while the file gets huge. It really make the
 simulation slow.
 
 Does anybody know how can I turn off tracing completely?
 
 Thanks for your attention
 Babak.





Re: [ns] Multi-interface support howto

2007-01-16 Thread Pedro Vale Estrela


Hi ramon

Thanks for this great contribution. This is exactly the kind of useful
documentation contributions that the NS2 simulator community needs.

Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Ramon Aguero
 Sent: segunda-feira, 15 de Janeiro de 2007 10:12
 To: ns-users@ISI.EDU
 Cc: [EMAIL PROTECTED]
 Subject: [ns] Multi-interface support howto
 
 
 Dear all,
 
 We have seen a lot of requests about the possibility to extend the NS-2
 framework to support multiple interfaces. Although there is some
 information available, according to the messages that have been sent to
 this list, it seems that a more thorough description may be required.
 
 In this sense, after performing an analysis about existing activities in
 this topic, we have created a document that tries to summarize which are
 the required changes to be performed within the different pieces of the
 simulator (tcl, c++) as well as how routing protocols can be adapted to
 make use of the new feature. The howto is entitled Adding Multiple
 Interface Support in NS-2 and it has been written by my colleague Jesús
 Pérez and myself.
 
 I’ve uploaded the document, which can be retrieved from the following url:
 http://personales.unican.es/aguerocrhttp://personales.unican.es/aguerocr
 
 We will be happy to receive any feedback, comments, so as to improve the
 howto, since we would like to have it like a living document, adding new
 features as they are available.
 
 Best regards,
 Ramón
 
 
 Ramón Agüero Calvo
 Dept. of Communications Engineering
 Network Planning  Mobile Communications
 Laboratory
 University of Cantabria
 Avda Castros s/n
 39005 - Santander
 SPAIN
 [EMAIL PROTECTED]
 Tel: +34 942 201 392 (Ext 14)
 Fax: +34 942 201 488
 




Re: [ns] NS tutorial update proposal

2007-01-16 Thread Pedro Vale Estrela


To Joachim: Many thanks for your documentation efforts

To all other NS2 users, especially for the recent ex-beginners:
__Please contribute to the NS2 Wiki__ with your experiences and conclusions.
More info: http://mailman.isi.edu/pipermail/ns-users/2006-June/056015.html

(Comments are inline)

 -Original Message-
 From: Joachim Fabini [mailto:[EMAIL PROTECTED]
 Sent: sexta-feira, 12 de Janeiro de 2007 11:00
 To: 'Pedro Estrela'
 Cc: ns-users@isi.edu; 'Joachim Fabini'
 Subject: RE: [ns] NS tutorial update proposal
 
 Hi Pedro,
 
  You are, of course, 100% correct - the tutorial is outdated
  and its very confusing to first time users.
 
  One problem is that, in general, NS2 users ask much, but
  contribute little when they have their questions solved -
  either by the help of somebody, or by their own.
 
 Your statements match very close my first impression as NS2
 newbie. Reading through the mailing list archive helps, but
 I also noticed that - compared to other groups - there are very,
 very few people (won't mention names ;) who regularily answer
:-)

 questions - thanks to you and to the other members for their
 help and time.
:-)
 
 As about the reason for the rather low feedback on the mailing
 list I can only speculate: on one hand, the plain NS is pretty
 complex, and people new to NS seem to try the minimum effort
 approach - instead of searching through the archive they
 immediately send their question to the list. This yields a high
 ratio of noise traffic. As soon as users become familiar with
 NS they focus on their specific task and many of them no longer
 actively participate in the list. On the other hand
exactly!


 the high number of patches, releases, and variants (moreover the
 incompatibility of some of these patches with each other) make
 answering questions on NS more difficult.
Also true

 In addition it seems to me that NS is used mainly in the academic
 field, where people usually leave after having completed their
 project (paper, thesis, etc.) - sadly enough sometimes without
 leaving behind any usable documentation of their patches/modules.
 
 So it's up to us (academics, be it students or supervisors) to
 make sure that we contribute something back to the community -
 and prepare students for real life by forcing them to document
 what they have done and giving this back to the community.
100% agreed

 Only as an example, regarding chapter VII of Marc's tutorial -
 in half an hour the person who changed the ping sources and
 included the sources into the NS distribution could also have
 updated the related web pages. If someone else is expected to
 do this, it takes him definitely longer to find out what
 exactly was changed and why... I tried to include all details
 that I have noticed into my posting but I'm almost sure that I
 skipped some.

Regarding this particular case, I think that first this useful info should
be stored on the NS2 wiki ASAP. At that time, I'll have no problems asking
on the NS-Developers Mailing list for someone with write access to put a
link informing where the updates and changes are located in the NS2 wiki.

Besides that, I think that the best way to maintain this and other parts of
the documentation, would be to port the whole tutorial to the NS2 wiki and
automatically redirect the existing page at
http://www.isi.edu/nsnam/ns/tutorial/

Again, I can ask on the developers mailing list for it, when the information
is ready at the wiki.

  Some examples from my personal experience:
  http://mailman.isi.edu/pipermail/ns-users/2006-June/056015.html
  http://mailman.isi.edu/pipermail/ns-users/2006-January/053560.html
 
 Yes, it's sad - but I repeat myself: the problem is that those
 who have gained a medium level of experience in NS and who have
 used the work of all previous NS developers are the target group
 for these contributions - having spent two days on NS does not
 give me the experience to find out all changes (and the reason
 for these changes).
Naturally.

  Regarding this particular topic, what I suggest is to:
   -  create a page about NS2 tutorials in the NS2 wiki, which
  could be used to detail the important changes for recent
  versions of NS2 of this, and possibly other tutorials.
 
 Good idea, but I see the tutorial maintenance as an orthogonal
 task to what you have proposed. The tutorial pages have such a
 high rating in search engines (like Google) that users will find
 the initial tutorial first. So imho the only way how to solve
true

 the problem is to keep synchronized the text and sources of
 these tutorials first - or take them offline, which is also not
 the solution that I'd like to go.
(please see response above)


  However, in my opinion, major improvements in problems like
  this will only be possible if more users take the action to
  contribute.
 
 I completly agree with your point of view.
 
 Thanks anyhow,
 best regards
 --Joachim
 




Re: [ns] error interpretation

2007-01-10 Thread Pedro Vale Estrela

Ahh, that's the ugliness of TCL...

That error is derived from the object-oriented capabilities of NS2 (oTCL)
being built on top of regular TCL code.

Thus, _o19 is an object name with is also a procedure.

Before the error do

Puts [_o19 info class]
And start searching from the returning class.

Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Ramzi Tka
 Sent: segunda-feira, 8 de Janeiro de 2007 9:50
 To: ns-users@ISI.EDU
 Subject: [ns] error interpretation
 
 
 Hi,
 let consider the followinf error :
 
 (procedure _o19 line 2)
 (SplitObject unknown line 2)
 
 What is the significance of   procedure _o19 . What is the tcl file
 that
 corresponds to _o19  so we can find line 2?
 
 Best regards
 Ramzi




Re: [ns] CIMS/NS-2

2007-01-10 Thread Pedro Vale Estrela

http://tagus.inesc-id.pt/~pestrela/ns2/mobility.html#_Toc147660119

http://www.infotech.tu-chemnitz.de/~knoll/NS2/Installing_old_NS2_version_ns-
allinone-2_1b6a_on_RedHat_8_0.php

 

The problem is the GCC compiler, which should be at least 2.95 or older.
When you can install the original ns2.1b6 without errors, then you'll know
that you are on the right track.

 

Pedro Vale Estrela

 

 

 

 

 

-Original Message-
From: Ameera AL-Durazi [mailto:[EMAIL PROTECTED] 
Sent: quarta-feira, 10 de Janeiro de 2007 10:19
To: [EMAIL PROTECTED]
Subject: CIMS/NS-2

 

Dear Sir,

I am doing a project on CIMS ns-2 , but I have seen that the one of the
requirment of the CIMS software is linux RedHat 8.0 , but I dont that
version so is it ok if I use RedHat 9 to add this patch to my ns-2 ???

Thanks,

Ame






  _  

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Re: [ns] Doubt regarding running cc program and NAM

2007-01-10 Thread Pedro Vale Estrela



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Swalaxmi Pandit
 Sent: sexta-feira, 5 de Janeiro de 2007 22:05
 To: ns-users@ISI.EDU
 Subject: [ns] Doubt regarding running cc program and NAM
 
 
 Hi,
 
 I am trying to run a sample TCL program(example.tcl) in ns2.
 The program is running smoothly but I am unable to see the output in nam
 and
 xgraph.
 For NAM,it is showing couldn't execute nam: no such file or directory.
 For xgraph,it is showing couldn't execute xgraph: no such file or
 directory.
 I have included the paths for both NAM and xgraph in bashrc file.

This is a path problem. In the meantime, put the absolute path to those
executables in the tcl script


 
 
 I have one more doubt.
 Can you just give me the procedure to link C++ program and TCL scripts and
 run them succesfully?
 
add whichever C++ code to the makefile, and source whichever tcl code in the
/tcl/lib/ns-lib.tcl file  (or source it in your script at run-time)



 I want to run mac-802_11.cc program from mac folder in ns-2.30. and want
 to
 see the output. I am using fedora 5 and ns2.30.
 Will you just tell me the step by step procedure to simulate the output?
 
 This is my university project. Please try to clarify the doubts.
 Thanks  Regards,
 Swalaxmi




Re: [ns] Fwd: segmentation fault in wired cum wireless scenario usingaodv+ help

2007-01-10 Thread Pedro Vale Estrela

I’ve colored and clustered the nodes myself, by hand, just for that picture
in my site.

For setting the wired nodes in NAM, the best way is to specify the wired
link latency and orientation. There are lots of examples on the /tcl/ex
directory on how to do it.

 

Pedro Vale Estrela

 

 

-Original Message-
From: subramani [mailto:[EMAIL PROTECTED] 
Sent: sábado, 6 de Janeiro de 2007 10:02
To: [EMAIL PROTECTED]
Subject: RE: [ns] Fwd: segmentation fault in wired cum wireless scenario
usingaodv+ help

 

hi 
thanks for the info ..
i rectified the fault by commenting some section and re running
and as you had pointed out i had done a mistake in assigning hier-address to
the wired nodes . 
one more doubt
in wired cum wireless scenarios as shown by nam
the wired nodes are seen clustered together.
specifying node positions for wired nodes has no effect.
is there any method to specify where each node should be located exactly in
the nam window?



 

 

Pedro Vale Estrela [EMAIL PROTECTED] wrote:


http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html#_Toc121548870



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of subramani
 Sent: quinta-feira, 4 de Janeiro de 2007 18:09
 To: ns list
 Subject: [ns] Fwd: segmentation fault in wired cum wireless scenario
 usingaodv+ help
 
 
 hi all,
 i have installed aodv+ for gateway discovery on ns-2.28 (redhat 9)
 aodv+ was in ns2 contributed code section
 
 it worked everything fine for all the example scripts provided..
 but when i changed the number of nodes in the given example
 wired_wireless_ex.tcl
 i received a segmentation fault
 
 i don't know wheres the fault .please atleast help me how to debug ns2
 scripts containing
 segmentation faults
 
 *
 here is the complete code
 **
 #try.tcl
 
 set opt(namfile) out.nam
 set opt(tracefile) out.tr
 set opt(x) 500; #x dimension of the
 topography
 set opt(y) 500; #y dimension of the
 topography
 set opt(wirelessNodes) 6; #mobile nodes
 set opt(wiredNodes) 8; #hosts and routers
 set opt(gatewayNodes) 2; #gateways
 
 set val(stop) 60.0; #simulation time
 set val(start-src) 1
 set val(stop-src) 50
 
 set opt(gw_discovery) reactive; #gateway discovery method
 # ==
 
 #---
 #Initialize Global Variables
 #---
 #create a simulator object
 set ns [new Simulator]
 $ns color 0 Brown
 
 #
 #Define The Hierachial Topology Structure
 #
 $ns node-config -addressType hierarchical
 #Nbr of domains
 AddrParams set domain_num_ 3
 #Nbr of clusters (=subdomains) in each domain
 lappend clusterNbr 2 2 1
 AddrParams set cluster_num_ $clusterNbr
 #Nbr of nodes in each cluster
 lappend eilastlevel 3 2 4 4 3
 AddrParams set nodes_num_ $eilastlevel
 
 ##
 
 #create trace objects for ns and nam
 $ns use-newtrace
 set nstrace [open $opt(tracefile) w]
 $ns trace-all $nstrace
 
 set namtrace [open $opt(namfile) w]
 $ns namtrace-all-wireless $namtrace $opt(x) $opt(y)
 
 
 #create a topology object and define topology (500mx500m)
 set topo [new Topography]
 $topo load_flatgrid $opt(x) $opt(y)
 
 #Choose method for gateway discovery
 if {$opt(gw_discovery) == proactive} {
 Agent/AODV set gw_discovery 0
 }
 if {$opt(gw_discovery) == hybrid} {
 Agent/AODV set gw_discovery 1
 }
 if {$opt(gw_discovery) == reactive} {
 Agent/AODV set gw_discovery 2
 }
 #create wired nodes
 set temp {2.0.0 2.0.1 2.0.2 2.0.3 2.1.4 2.1.5 2.1.6 2.1.7}
 for {set i 0} {$i  $opt(wiredNodes)} {incr i} {
 set host($i) [$ns node [lindex $temp $i]]
 }
 
 #create God (General Operations Director)
 create-god [expr $opt(wirelessNodes)+$opt(gatewayNodes)]]
 
 
 #--
 #Configure for Gateway and Mobile Nodes
 #--
 #Use hierarchical addresses for GWs and MNs
 
 #configure for mobile nodes and gateways
 $ns node-config -adhocRouting AODV
 $ns node-config -llType LL
 $ns node-config -macType Mac/802_11
 $ns node-config -ifqType Queue/DropTail/PriQueue
 $ns node-config -ifqLen 50
 $ns node-config -antType Antenna/OmniAntenna
 $ns node-config -propType Propagation/TwoRayGround
 $ns node-config -phyType Phy/WirelessPhy
 $ns node-config -topoInstance $topo
 $ns node-config -channel [new Channel/WirelessChannel]
 $ns node-config -agentTrace ON
 $ns node-config -routerTrace ON
 $ns node-config -macTrace ON
 $ns node-config -movementTrace OFF
 
 #3
 
 #configure for gateways
 $ns node-config -wiredRouting ON
 #create gateway
 set gw(0) [$ns node 0.0.0]
 #set initial coordinates
 $gw(0) set X_ 100.0
 $gw(0) set Y_ 250.0
 $gw(0) set Z_ 0.0
 $ns at 0.00 $gw(0) setdest 100 250 20
 try
 set gw(1) [$ns node 1.0.0]
 #set initial coordinates
 $gw(1) set X_ 500.0
 $gw(1) set Y_ 250.0

Re: [ns] Fwd: segmentation fault in wired cum wireless scenario usingaodv+ help

2007-01-05 Thread Pedro Vale Estrela


http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html#_Toc121548870



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of subramani
 Sent: quinta-feira, 4 de Janeiro de 2007 18:09
 To: ns list
 Subject: [ns] Fwd: segmentation fault in wired cum wireless scenario
 usingaodv+ help
 
 
  hi all,
 i have installed aodv+ for gateway discovery on ns-2.28 (redhat 9)
 aodv+ was in ns2 contributed code section
 
 it worked everything fine for all the example scripts provided..
 but when i changed the number of nodes in the given example
 wired_wireless_ex.tcl
 i received a segmentation fault
 
 i don't know wheres the fault .please atleast help me how to debug ns2
 scripts containing
 segmentation faults
 
 *
 here is the complete code
 **
 #try.tcl
 
 set opt(namfile) out.nam
 set opt(tracefile)   out.tr
 set opt(x)500;#x dimension of the
 topography
 set opt(y)   500;#y dimension of the
 topography
 set opt(wirelessNodes)   6;  #mobile nodes
 set opt(wiredNodes)  8;  #hosts and routers
 set opt(gatewayNodes)2;  #gateways
 
 set val(stop) 60.0;   #simulation time
 set val(start-src)   1
 set val(stop-src)50
 
 set opt(gw_discovery)reactive; #gateway discovery method
 # ==
 
 #---
 #Initialize Global Variables
 #---
 #create a simulator object
 set ns [new Simulator]
 $ns color 0 Brown
 
 #
 #Define The Hierachial Topology Structure
 #
 $ns node-config -addressType hierarchical
 #Nbr of domains
 AddrParams set domain_num_ 3
 #Nbr of clusters (=subdomains) in each domain
 lappend clusterNbr 2 2 1
 AddrParams set cluster_num_  $clusterNbr
 #Nbr of nodes in each cluster
 lappend eilastlevel 3 2 4 4 3
 AddrParams set nodes_num_ $eilastlevel
 
 ##
 
 #create trace objects for ns and nam
 $ns use-newtrace
 set nstrace [open $opt(tracefile) w]
 $ns trace-all $nstrace
 
 set namtrace [open $opt(namfile) w]
 $ns namtrace-all-wireless $namtrace $opt(x) $opt(y)
 
 
 #create a topology object and define topology (500mx500m)
 set topo [new Topography]
 $topo load_flatgrid $opt(x) $opt(y)
 
 #Choose method for gateway discovery
 if {$opt(gw_discovery) == proactive} {
 Agent/AODV set gw_discovery 0
 }
 if {$opt(gw_discovery) == hybrid} {
 Agent/AODV set gw_discovery 1
 }
 if {$opt(gw_discovery) == reactive} {
 Agent/AODV set gw_discovery 2
 }
 #create wired nodes
 set temp {2.0.0 2.0.1 2.0.2 2.0.3 2.1.4 2.1.5 2.1.6 2.1.7}
 for {set i 0} {$i  $opt(wiredNodes)} {incr i}  {
 set host($i) [$ns node [lindex $temp $i]]
 }
 
 #create God (General Operations Director)
 create-god [expr $opt(wirelessNodes)+$opt(gatewayNodes)]]
 
 
 #--
 #Configure for Gateway and Mobile Nodes
 #--
 #Use hierarchical addresses for GWs and MNs
 
 #configure for mobile nodes and gateways
 $ns node-config -adhocRouting AODV
 $ns node-config -llType LL
 $ns node-config -macType Mac/802_11
 $ns node-config -ifqType Queue/DropTail/PriQueue
 $ns node-config -ifqLen  50
 $ns node-config -antType Antenna/OmniAntenna
 $ns node-config -propType Propagation/TwoRayGround
 $ns node-config -phyType  Phy/WirelessPhy
 $ns node-config -topoInstance $topo
 $ns node-config -channel [new Channel/WirelessChannel]
 $ns node-config -agentTrace ON
 $ns node-config -routerTrace ON
 $ns node-config -macTrace ON
 $ns node-config  -movementTrace OFF
 
 #3
 
 #configure for gateways
 $ns node-config -wiredRouting ON
 #create gateway
 set gw(0) [$ns node 0.0.0]
 #set initial coordinates
 $gw(0) set X_ 100.0
 $gw(0) set Y_ 250.0
 $gw(0) set Z_ 0.0
 $ns at 0.00 $gw(0) setdest 100 250 20
 try
 set gw(1) [$ns node 1.0.0]
 #set initial coordinates
 $gw(1) set X_ 500.0
 $gw(1) set Y_ 250.0
 $gw(1) set Z_ 0.0
 $ns at 0.00 $gw(1) setdest 500 250 20
 
 
 #Define node initial position in nam
 
 
 
 #configure for mobile nodes
 $ns node-config -wiredRouting OFF
 #create mobile nodes in the same domain as gw(0)
 set temp {0.0.1 0.0.2 0.1.0 0.1.1 1.0.1 1.0.2}
 for {set i 0} {$i  $opt(wirelessNodes)} {incr i} {
 set mobile($i) [$ns node [lindex $temp [expr $i]]]
 if {$i4} {
 $mobile($i) base-station [AddrParams addr2id [$gw(0) node-addr]]
 }  else {
 $mobile($i) base-station [AddrParams addr2id [$gw(1) node-addr]]
 }
 
 }
 
 $mobile(0) set X_ 10
 $mobile(0) set Y_ 200
 $mobile(0) set Z_ 0.0
 
 $mobile(1) set X_ 60
 $mobile(1) set Y_ 320
 $mobile(1) set Z_ 0.0
 
 $mobile(2) set X_ 50
 $mobile(2) set Y_ 250
 $mobile(2) set Z_ 0.0
 
 $mobile(3) set X_ 100
 

Re: [ns] debugger install

2006-12-21 Thread Pedro Vale Estrela

This guide has been used successfully many times.

 

Try

Make nstk

  Nstk

 

 

 

 

-Original Message-
From: sandesh shenoy [mailto:[EMAIL PROTECTED] 
Sent: quinta-feira, 21 de Dezembro de 2006 10:41
To: nsusers
Cc: [EMAIL PROTECTED]
Subject: [ns] debugger install

 

Hello,

  I went through ns2 otcl+Mash+Tkcon+Tcl-debug debugging page
and tried to follow the procedures.After adding Tk support,I tried to run
nstk,but it is giving nstk command not found.Any problem with the
patching?One patcing in common and other under ns-2.28 directory right?I am
not able to get what went wrong.Any other initializations to be done?Please
do help me in this regard.

 

Thanks in advance.

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Re: [ns] a simple question

2006-12-18 Thread Pedro Vale Estrela

The first free the memory and doesn't log the drop in the trace file, the
second does both (please confirm if it frees the memory)


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of juan manuel gomez garcia
 Sent: segunda-feira, 18 de Dezembro de 2006 17:11
 To: Ns-users@ISI.EDU
 Subject: [ns] a simple question
 
 
 Hi ns-users:
 I don't know what is the difference between
 
 Packet::free(p)  anddrop(p).
 
 Thank you for your help.
 
 _
 Descarga gratis la Barra de Herramientas de MSN
 http://www.msn.es/usuario/busqueda/barra?XAPID=2031DI=1055SU=http%3A//ww
 w.hotmail.comHL=LINKTAG1OPENINGTEXT_MSNBH




Re: [ns] CBR packet size on 802.11b link

2006-12-18 Thread Pedro Vale Estrela



Good question. You'll get confusing and sometimes conflicting packets sizes
when setting it at the agent, transport or application level, but this is at
the same layer.

Maybe the send is L2 packet size, with l2 headers, and recv is L4 pakcet
size without headers
Try enabling the RTR and AGT traces

Pedro Vale Estrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Lars Lars
 Sent: segunda-feira, 18 de Dezembro de 2006 21:46
 To: ns-users@ISI.EDU
 Subject: [ns] CBR packet size on 802.11b link
 
 
 Hi,
 I'm sending 1004 Byte CBR packets using a UDP agent with a packet size of
 1024. After the RTS/CTS handshaking is complete I can see the packet
 sending
 and receiving. Tracefile extract is below. Why is the cbr packet size 1076
 when sending and 1024 when arriving??
 
 L
 
 
 s 1.213410777 _0_ MAC --- 0   RTS 44
 r 1.213763444 _1_ MAC --- 0   RTS 44
 s 1.213773444 _1_ MAC --- 0   CTS 38
 r 1.21407811  _0_ MAC --- 0   CTS 38
 s 1.21408811  _0_ MAC --- 267 cbr 1076
 r 1.215045868 _1_ MAC --- 267 cbr 1024
 
 _
 Discover the magic of RSS feeds at MSN Ireland! http://ie.msn.com/




Re: [ns] ns-allinone-2.26 installation

2006-12-14 Thread Pedro Vale Estrela

Use older version of your distribution


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Anjali Arora
 Sent: quinta-feira, 14 de Dezembro de 2006 13:35
 To: ns-users@ISI.EDU
 Subject: [ns] ns-allinone-2.26 installation
 
 
 hello everyone
   i have ns-allinone-2.26 and mns-for-2.26.i want to install it on linux
 red-hat enterprise edition.but its not working,giving error tk 8.3.2 make
 failed.what is the solution or whats another option?
   please help me out
   anjali
 
 
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Re: [ns] compile problem

2006-12-14 Thread Pedro Vale Estrela

Sems like a bug in the makefile.

Try:

rm ns2/gen/ns_tcl.o  ; make


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of sandesh shenoy
 Sent: quinta-feira, 14 de Dezembro de 2006 14:09
 To: ns-users@ISI.EDU
 Subject: [ns] compile problem
 
 
 Hello,
  Could anyone tell me how to reflect the log statements
 written in file-ns-lib.tcl,Simulator instproc init args body.If i make
 under ns-2.28,no changes are brought about.Is there any additional
 procedure to be followed?Any suggestions will be helpful for me.
 
   Thanks in advance.
 
 
 -
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  Send FREE SMS to your friend's mobile from Yahoo! Messenger Version 8.
 Get it NOW




Re: [ns] accessing queue length in 802.11 MAC

2006-12-06 Thread Pedro Vale Estrela



Use:

If( ((LL *)uptarget_)-ifq()){
//code if non-null
} else {
// code if null
}

note that a null queue é a node without a queue, NOT an empty queue!


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of M. Shen
 Sent: quarta-feira, 6 de Dezembro de 2006 14:56
 To: ghada; ns-users@ISI.EDU
 Subject: Re: [ns] accessing queue length in 802.11 MAC
 
 
 Dear ghada,
 
 Thank you very much for your reply. But how to check if the queue is
 null or not? Should I do it in the queue.cc peoriodically and transfer
 the state to mac? Or check it in the MAC? If it's the latter, we still
 need to access ifq() in the mac.cc, right?
 
 thanks,
 Min
 
 
 On Wed, 6 Dec 2006 14:03:15 +0900
  ghada [EMAIL PROTECTED] wrote:
 
   I think you can solve this problem if you check first  if the queue
  is null
  or not before using length() function.
 
 
  - Original Message - From: M. Shen [EMAIL PROTECTED]
  To: ns-users@ISI.EDU
  Sent: Wednesday, December 06, 2006 12:10 PM
  Subject: Re: [ns] accessing queue length in 802.11 MAC
 
 
  
   Dear guys,
  
   I tried to access queue length in MAC. So I wrote
   int pkt_num = ((LL *)uptarget_)-ifq()-length();
  
   When I run the simulation us gdb, segmentation fault occurs. I
  shows
   that
  
   Program received signal SIGSEGV, Segmentation fault.
   0x080c3ad4 in Queue::length() (this=0x0) at queue/queue.h:136
   136 int length() { return pq_-length(); }  /* number of pkts
  currently
   in
  
   Does any one know how to deal with this problem?
  
   Thank you very much,
   Min
  
  
 




Re: [ns] How to measure overhead with ns2?

2006-12-06 Thread Pedro Vale Estrela


Count the number of sent packets at the agent or router layer

Cat trace.tr | grep ^s | grep AGT | grep source node

Use   awk ' { if ($6 == ) print } '  to filter based on certain fields

Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Schuenemann Bjoern
 Sent: quarta-feira, 6 de Dezembro de 2006 15:58
 To: ns-users@ISI.EDU
 Cc: Blueher Andreas
 Subject: [ns] How to measure overhead with ns2?
 
 
 Hello,
 
 I'm trying to figure out how i can measure the created overhead which
 occured in a network simulation. Actually we are trying to compare a new
 idea of detecting malicious nodes with other old-fashion ways. One of our
 metrics is the created overhead.
 
 Assume we have a network with 100 nodes and 20 of them behave unnormally
 like dropping all data packets. How many packets have to be resended,
 until every packet reaches the destination at least once. How can we
 measure how many packets had to be transmitted overall to find out how
 much overhead occured?
 
 Thank you very much for your help!
 
 Best Regards,
 Björn
 
 -
 
 Dipl.-Inform. Björn Schünemann
 
 Hasso-Plattner-Institut für Softwaresystemtechnik GmbH
 Institut an der Universität Potsdam
 Postfach 900460, D-14440 Potsdam, Germany
 http://www.hpi.uni-potsdam.de http://www.hpi.uni-potsdam.de/
 
 Phone: +49(0)331 5509 520
 WWW: http://www.schuenemann.name/ http://www.schuenemann.name/
 
 -
 
 
 




Re: [ns] recall a procedure every time that a packet arrives

2006-12-05 Thread Pedro Vale Estrela

Create your own queue object (derive from exiting queue/droptail) and
redefine the recv() function

Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Daniel Dekst
 Sent: quinta-feira, 30 de Novembro de 2006 3:02
 To: ns-users@ISI.EDU
 Subject: Re: [ns] recall a procedure every time that a packet arrives
 





Re: [ns] HMIPv6 extentions

2006-12-05 Thread Pedro Vale Estrela


check
http://tagus.inesc-id.pt/~pestrela/ns2/mobility.html


I've also asked for the code, but without success. Please email the authors
requesting the code, and if you get a response, please post it on the list.

Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of [EMAIL PROTECTED]
 Sent: quarta-feira, 29 de Novembro de 2006 19:46
 To: ns-users@ISI.EDU
 Subject: [ns] HMIPv6 extentions
 
 
 Hi,
 i am a university student and i'm working on MIPv6, HMIPv6 and fast
 handovers.
 I've heard about R. Hsieh's impementation of HMIPv6, i've found a couple
 of links but there are all down.
 Is there anyone who already has this extention, or something similar
 (FHMIPv6)?
 thanks





[ns] FW: How does the control comes back from C++ to OTcl ?

2006-12-05 Thread Pedro Vale Estrela


--=_Part_9264_2857892.1165332047369
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

things dont work as simply as that.

befeore the simualtion starts, you schedule a packet generation to occur at
0.01
then, still before the simulation starts, you schedule a link failure at
0.02
then you start the simulation, where control is given to the scheduler.

the scheduler only processes messages that are exanged between the NS2
components (agents / links / queues / packets).
After some hundreds of events, teh scheduler will eventually call your code
at time 0.01
then it calls some more hundreds of events, before it call your second piece
o code at time 0.02

what exactly are you trying to do?
Pedro Vale Estrela

PS: this is a fine material for the NS2 wiki  - please contribute !!!





On 12/5/06, G.Chandramowli [EMAIL PROTECTED] wrote:


 Hi everybody ...

 Can anyone tell me when the control from C++ comes back to OTcl ?

   To be more specific , let me explain a specific example here .

Assume that I have written a script line to generate packets at
0.01second.
Second script line to make the link failure at 0.02 second .

   Please tell me when the control , that goes to c++ from the script line
 1, comes back to execute the script line 2 ?

 I am ready to explain further if my above example is difficult to
 understand .

   Thanks in advance .
   G.Chandramowli.



--=_Part_9264_2857892.1165332047369
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

divthings dont work as simply as that./div
divnbsp;/div
divbefeore the simualtion starts, you schedule a packet generation to
occur at 0.01/div
divthen, still before the simulation starts, you schedule a link failure
at 0.02/div
divthen you start the simulation, where control is given to the
scheduler./div
divnbsp;/div
divthe scheduler only processes messages that are exanged between the NS2
components (agents / links / queues / packets)./div
divAfter some hundreds of events, teh scheduler will eventually call your
code at time 0.01/div
divthen it calls some more hundreds of events, before it call your second
piece o code at time 0.02/div
divnbsp;/div
divwhat exactly are you trying to do?/div
divPedro Vale Estrela/div
divnbsp;/div
divPS: this is a fine material for the NS2 wikinbsp; - please contribute
!!!/div
divnbsp;/div
divnbsp;/div
divnbsp;/div
divnbsp;/div
divnbsp;/div
divspan class=gmail_quoteOn 12/5/06, b
class=gmail_sendernameG.Chandramowli/b lt;a
href=mailto:[EMAIL PROTECTED][EMAIL PROTECTED]/agt; wrote:/span
blockquote class=gmail_quote style=PADDING-LEFT: 1ex; MARGIN: 0px 0px
0px 0.8ex; BORDER-LEFT: #ccc 1px solidbrHi everybody ...brbrCan
anyone tell me when the control from C++ comes back to OTcl
?brbrnbsp;nbsp;To be more specific , let me explain a specific example
here .
brbrnbsp;nbsp; Assume that I have written a script line to generate
packets at 0.01 second.brnbsp;nbsp; Second script line to make the link
failure at 0.02 second .brbrnbsp;nbsp;Please tell me when the control
, that goes to c++ from the script line 1, comes back to execute the script
line 2 ?
brbrI am ready to explain further if my above example is difficult to
understand .brbrnbsp;nbsp;Thanks in advance
.brnbsp;nbsp;G.Chandramowli.brbr/blockquote/divbr

--=_Part_9264_2857892.1165332047369--





Re: [ns] TCP or transport layer Tunneling

2006-11-15 Thread Pedro Vale Estrela

The MIP (mobile IP) code in Ns2 has this already implemented using IP-in-IP
tunneling

Pedro Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Peyman Behbahani
 Sent: quarta-feira, 15 de Novembro de 2006 11:09
 To: ns-users@ISI.EDU
 Subject: [ns] TCP or transport layer Tunneling
 
 
 Dear Ns-Users,
 
 
 
 I am wandering is there any implementation for TCP-over-TCP tunnelling or
 alternatively any idea about implementing such a scenario?
 
 
 
 The topology can be as follow:
 
 
 
 
 0-0=0-0
 
Sender  router1   TCP  router2
 receiver
 
 (TCP)   tunnel
 
 
 
 Router 1 is working as a TCP-encapsulator and router 2 is a decapsulator.
 
 
 
 Thanks in advance, bests
 
 Peyman
 
 
 
 





Re: [ns] Simulating channel Hopping in ns2

2006-11-15 Thread Pedro Vale Estrela



 I cannot help with the channel hopping. But to find problems with linked
 lists etc. in the C++ part of the code it is always a very good idea to

good tip

 run ns-2 using valgrind. Simulations will use a lot more time to run,
 but every strange or wrong memory access will be recognized.

As I explain here,
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging3.html
Step 1 - Choosing a simpler scenario that is known to be correct, etc

the first step should be to simplify the scenario to make the debug
simulations run faster. A common tip that I use extensively is to generate a
lot less traffic (lower the rate for UDP; use lower link speeds for TCP).

For handling the parameters in the command line, I suggest this
http://tagus.inesc-id.pt/~pestrela/ns2/contributed_code.html#_Toc147652228

Pedro Vale Estrela





Re: [ns] Script for parsing output trace file

2006-11-02 Thread Pedro Vale Estrela


http://www.isi.edu/nsnam/archive/ns-users/webarch/1999/msg02093.html
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_beginners.html
http://www.geocities.com/tracegraph/





 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of vitz399
 Sent: quarta-feira, 1 de Novembro de 2006 11:19
 To: ns-users@ISI.EDU
 Subject: [ns] Script for parsing output trace file
 
 
 
 Hello everyone,
 
 I have a task which is about to evaluate the performance of AODV mobile ad
 hoc routing protocol. I have created a simulation environment and I have
 gathered data into a trace file. However, I would like to performing data
 mining on the trace file. Such as mining data for metrics of packet
 delivery
 fraction and end to end delay.  Could anyone please provide me some
 scripts
 example or possibly the source code for the script on parsing the output
 trace file.
 
 Thank you in advance
 
 regards,
 vitz
 --
 View this message in context: http://www.nabble.com/Script-for-parsing-
 output-trace-file-tf2551509.html#a7111531
 Sent from the ns-users mailing list archive at Nabble.com.





Re: [ns] reserved node addresses

2006-11-02 Thread Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Matthias Budde
 
 I am wondering which addresses are reserved in ns-2. I know
 that -1 is IP_BROADCAST but what else? I use an Agent that
 sends packets to daddr -2. Does anyone know what that stands
 for? Are other adresses also reserved and is there a complete
 list somewhere?

A very good question indeed.

I've put some info about addresses here: 
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html#_Toc121548871

-1 is commonly used for IP_BROADCAST, but also for unk, and also for
error (in different parts of the code)

-2: normally stands for unk when -1 is already error, eg:
[EMAIL PROTECTED]:[ns2]$ grep -d recurse IP_BROCAST *
common/ip.h:#define IP_BROADCAST((u_int32_t) 0x)
common/packet.h:(HDR_CMN(p))-next_hop_ = -2; // -1 reserved for
IP_BROADCAST
common/packet.h:(HDR_CMN(p))-last_hop_ = -2; // -1 reserved for
IP_BROADCAST

[EMAIL PROTECTED]:[ns2]$ grep -d recurse \-1 * | grep define 
cims/timip.h:#define ID_UNK -1
diffserv/dsPolicy.h:#define ANY_HOST -1 // Add to enable point to
diffserv/ew.h:#define EW_UNCHANGE -1
diffusion3/apps/gear/geo-tools.hh:#define FAIL  -1
diffusion3/apps/gear/geo-tools.hh:#define INITIAL_HEURISTIC_VALUE   -1
diffusion3/apps/sysfilters/gradient.hh:#define OLD_MESSAGE -1
diffusion3/lib/dr.hh:#define WAIT_FOREVER   -1
diffusion3/lib/main/header.hh:#define BROADCAST_ADDR   -1
diffusion3/lib/nr/nr.hh:#define FAIL -1
mac/mac-802_3.h:#define INVALID_UID -1  // Used for
mac level traces
mac/mac-802_3.h:#define INVALID_TIME-1
mac/mac-tdma.h:#define FIRST_ROUND -1
mac/mac.h:#define BCAST_ADDR -1
mcast/lms.h:#define LMS_NOADDR  -1
mcast/lms.h:#define LMS_NOPORT  -1
mcast/srm-topo.h:#define SRM_NOIF -1

[EMAIL PROTECTED]:[ns2]$ grep -d recurse \-2 * | grep define 
mac/mac-tdma.h:#define NOTHING_TO_SEND -2

(this is a partial list of all places that use -1 or -2 as addresses)






Re: [ns] Xgraph basic question

2006-10-18 Thread Pedro Vale Estrela


Check this
http://tagus.inesc-id.pt/~pestrela/ns2/contributed_code.html#_Toc147652227


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Loreno Oliveira
 Sent: terça-feira, 17 de Outubro de 2006 14:40
 To: Aco
 Cc: NS-Users
 Subject: Re: [ns] Xgraph basic question
 
 
 If using xgraph is not a need, you may try gnuplot for ploting your
 graphs...
 
 Regards,
 
 Loreno
 
 On 10/17/06, Aco [EMAIL PROTECTED] wrote:
 
 
  I am trying to visualize test results using Xgraph.
  Everything is OK, but I have problem with something that should not be a
  problem.
 
  I cannot find a way how to output graph I got to JPG file. I can make
  PS,
  and OBJ file but I need clear JPG picture witout gray background.
 
  Anybody can help ?
 




Re: [ns] How do you Debug your Codes?

2006-10-18 Thread Pedro Vale Estrela


 
 Check http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging.html
 
 
 
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
 Behalf
  Of Filippos Kolovos
  Sent: sábado, 14 de Outubro de 2006 8:18
  To: ns-users@ISI.EDU
  Subject: Re: [ns] How do you Debug your Codes?
 
 
  -
  For TCL-level debugging you can use tcl-debug. You have to
  download it and install it in addition with ns and also when you
  ./configure
  your ns code you have to put it as a parameter, i.e. (--with-tcl-debug).
 
  For C-level debugging you can install a graphical debugger such as DDD
  (frontend for GNUDB), but at first you have to configure the
 compilation
  of ns to be prepared for debugging. You can do this by giving the
  parameter
  --enable-debug while you are configuring ns.
 
  In total, if you want both TCL-level and C-level debugging you must put
  both
  parameters
  when you execute ./configure and also install separately both
 debuggers
  (tcl-debug and
  ddd).
 
  Regards,
 
  -Fk
 
  -- Forwarded message --
   From: hamid reza [EMAIL PROTECTED]
   To: ns-users@ISI.EDU
   Date: Fri, 13 Oct 2006 06:31:06 -0700 (PDT)
   Subject: [ns] How do you Debug your Codes?
   Dear All,
   How do you Debug your codes?
   What is the best tool for this issue?
  
  
   Best Regards
   Hamid reza
  
  
  
 
  --
  Filippos N Kolovos
 
  Software Systems Analyst  Engineer
  M.Sc. (Eng.) in Data Communications
 
  Automation  Networking Department
  University of Macedonia Library
  Egnatia 156, P.O.Box 1591
  540 06 Thessaloniki, Greece
 
  E-Mail: [EMAIL PROTECTED],
 [EMAIL PROTECTED]
  -
 





Re: [ns] how can we echange variable between layer???

2006-10-12 Thread Pedro Vale Estrela

If you pass these between c++ modules by calling TCL procedures, this is
very easy (but slow)

Start by checking this page
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_tips.html#_Toc124667331

Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Bilel Romdhani
 Sent: terça-feira, 10 de Outubro de 2006 11:47
 To: Ns-users@ISI.EDU
 Subject: [ns] how can we echange variable between layer???
 
 
 hi everybody,
 i m using ns2.27 to simulate wireless scenario and i want to know how can
 we
 echange variable between layer, ie, i want to use the cw_ variable on the
 droptail.cc file how can i do that if it's possible of course!
 
 thanks a lot




Re: [ns] reproducing the graphical results of EDCA model

2006-10-12 Thread Pedro Vale Estrela


Have you asked the original authors for their code?

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of wajid mehmood
 Sent: quinta-feira, 12 de Outubro de 2006 14:09
 To: ns-users@ISI.EDU
 Subject: [ns] reproducing the graphical results of EDCA model
 
 
 hi all,
   I want to test the EDCF simulation of the guy
 from tu berlin,I want to reproduce the graph of his simulation
 mentioned in the paper
   Design and Verification of an IEEE 802.11e EDCF Simulation Model in ns-
 2.26, Telecommunication Networks Group, Technische Universität Berlin,
 November 2003.I wrote the scenerio with one end station and one access
 point with no. of
 wireless nodes as a command line parameter.I got the throughput results
 w.r.t. time ,but i need to see the throughput with increasing no. of
 stations as shown on the page 28 of the paper.If somebody has already done
 this or any idea about it ,please do write.
   many thanks
   wajid
 
  Send instant messages to your online friends
 http://uk.messenger.yahoo.com




Re: [ns] Mobile IP

2006-10-11 Thread Pedro Vale Estrela


 Hi, I don't know if in the implementation of mobile ip of ns-2 the router
 advertisements arrive to nodes of one hop or two hops or more, but  i want
 to send the routers advertisements to all the network, the variable that i

the ads are propagated by the basetstions and are received exactly 1 hop way
by mobile nmodes. 

 need to change is ads_lifetime and other question this variable is
 measurement in seconds or hops?

Ads_lifetime represents the amount of time, in seconds I believe, that the
beacon is valid. It has nothing to do with multi hops.

Pedro Vale Estrela
http://tagus.inesc-id.pt/~pestrela/ns2/






Re: [ns] Multiple source files

2006-10-11 Thread Pedro Vale Estrela


Exactly, that's the way to do it.

I might add that this function makes your life easier
http://tagus.inesc-id.pt/~pestrela/ns2/contributed_code.html#_Toc147652228


Pedro Vale Estrela



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Daniel Mahrenholz
 Sent: quarta-feira, 11 de Outubro de 2006 10:32
 To: Keita Rose
 Cc: ns-users@ISI.EDU
 Subject: Re: [ns] Multiple source files
 
 
 Keita Rose schrieb:
  I am trying to run a mobile scenario using multiple source files, how do
 I go about implementing that is NS-2 if it is at all possible.
 
 I'm not sure, I got you right. But I did the following in order to
 simulate different topologies with the same set of applications. I first
 build a core simulation script, e.g. one that creates the simulator
 objects, configures everything, etc. Then I include the script that
 creates the topology (given by a command line parameter) into this core
 script. The remaining part of the core script configures the
 applications and runs the simulation.
 
 Now, in order to investigate different topologies, I wrote a control
 script, that iterates over the list of available toplogies and calls the
 simulation script with the name of the topology script as a parameter.
 You should be able to do something similar.
 
 Daniel.





Re: [ns] no reply yet: CBQ for wireless nodes

2006-10-11 Thread Pedro Vale Estrela


 Hi
 this is sixth time i am emailing about how to use CBQ in wireless nodes as
 interface queue, but still waiting for reply.

Then maybe 
a) no one has tried it before
b) or the persons how may have tried it before probably aren't registrated
on this mailing list, IMO probably because of messages like this one! (Which
the current one is certainly not of the worst kind!)

You've mentioned that you are waiting; FYI, I'm waiting since January for a
single reply to this email:
http://mailman.isi.edu/pipermail/ns-users/2006-January/053560.html

with the follow up in June:
http://mailman.isi.edu/pipermail/ns-users/2006-June/056015.html


 how can i use cbq as interface queue of wireless node.
Back to your question, the best bet is to find a paper in which the authors
have tried this combination in NS2, and ask them how to do it; failing that,
then its time to hack to the NS2 code, find why that particular combination
is not working, and contribute your patches to the ns-developers mailing
list!

Pedro Vale Estrela
http://tagus.inesc-id.pt/~pestrela/ns2/index_.html






Re: [ns] IPv6 support in NS-2

2006-10-09 Thread Pedro Vale Estrela


Check how this is done in mobiwan - these nice guys have implemented IPv6
and Mobile IPv6
http://tagus.inesc-id.pt/~pestrela/ns2/mobility.html



Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Tubtim Sanguanwongthong
 Sent: sábado, 7 de Outubro de 2006 14:17
 To: ns-users@ISI.EDU
 Subject: [ns] IPv6 support in NS-2
 
 
 I've tried to modify NS-2 to support IPv6 beginning with ip.h.
   In ip.h,
 
 struct hdr_ip {
 _/* common to IPv{4,6} */
 ns_addr_t   src_;
 ns_addr_t   dst_;
 int ttl_;
 
   }
 
   I'd like to know whether I have to change type of src_ and dst_ to
 support 128 bits.  ns_addr_t  src_; and ns_addr_t dst_;   can be used in
 both IPv4 and IPv6.
   I'm really appreciated in this help (very important).
   Thank you in advance.
   Tubtim
 
 
 -
 Want to be your own boss? Learn how on  Yahoo! Small Business.




Re: [ns] what is the meaning of $self next

2006-10-09 Thread Pedro Vale Estrela

http://www.openmash.org/developers/docs/otcl-doc/doc/class.html



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Guillermo Biot
 Sent: segunda-feira, 9 de Outubro de 2006 11:43
 To: Ns Users
 Subject: [ns] what is the meaning of $self next
 
 
 Hi,
 
 I'm using some test scripts and I found the following code in one of them:
 
 $self next
 
 What does it mean?
 It is part of an instproc.
 There is no function called next in the script.
 Thank you.
 
 Regards,
 Guillermo




Re: [ns] How to change the parameters during the simulation to save thetime

2006-10-09 Thread Pedro Vale Estrela


Use this proc:
http://tagus.inesc-id.pt/~pestrela/ns2/contributed_code.html#_Toc147652228

sample code:


global opt
set opt(opt_conv) {
  { d my_delay_ms }
...
}

set opt(my_delay_ms) 100;# default: 100 ms delay
my_getopt $argv
  

set opt(my_delay_s) [expr $opt(my_delay_ms) * 0.001 ]   ;# convert to
seconds


...

$ns make-lan $TCP_BS $TCPr 2mb $opt(my_delay_s) LL Queue/DropTail Mac
...

change the trace name to include the current delay parameter, to create
different trace files


Calling format in bash:
---

for i in 1 10 100 1000; do 
ns my_script.tcl -- -d $i
done



Pedro Vale Estrela
http://tagus.inesc-id.pt/~pestrela/ns2/




 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Bilal AbuQadous
 Sent: sábado, 7 de Outubro de 2006 23:05
 To: ns-users@ISI.EDU
 Subject: [ns] How to change the parameters during the simulation to save
 thetime
 
 
 Dear ns users,
 
 
 
 would you please tell me how I can change the parameters without stopping
 the simulation.
 
 as eg.
 
 
 
 how I can change the delay in the following command without stopping the
 simulation and make that automatic until the end.
 
 
 
 $ns make-lan $TCP_BS $TCPr 2mb 0.001ms LL Queue/DropTail Mac
 
 
 
 if I will make a test with different delay starting from 0.001, 0.01,
 0.01,1,
 10, 100, 150 ms, how I could make these changes automatically without
 entering new delay parameter by stop the simulation.
 
 
 
 I need this thing To save the time and the effort.
 
 
 thank you in advance
 
 
 
 
 
 
 --
 AbuQadous, Bilal
 Alamiah Electronics (Systems Engineer)
 Mobile:+966507174541
 Office:+96638610044 ext:772
 P.O. Box 9912
 Dammam 31423
 KSA




Re: [ns] sending packets

2006-10-09 Thread Pedro Vale Estrela


Inside my recv() function I do like this without problems:


// clone the current packet and change some fields
Packet* new_p = clone_pkt(p);

hdr_ip*new_iph  = hdr_ip::access(new_p);

new_iph-daddr() = ...;
new_iph-saddr() = addr();

// change fields on the current packet
iph-daddr() = id2iaddr(th-b_id);
iph-saddr() = addr();


// send original packet somewhere
send(p, 0);

// send cloned packet elsewhere
send(new_p, 0);

...





 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Larry Brigman
 Sent: segunda-feira, 9 de Outubro de 2006 19:14
 To: ns-users@ISI.EDU
 Subject: [ns] sending packets
 
 
 I am working on a queuing model.  There are times that I need to
 send more than one packet in the recv function.
 
 Because of the way NS models things it looks like after a single send or
 target-recv(p,h) I cannot send again without an error.
 
 Is there a way to write a recv function that is allowed to send more than
 once?
 
 Also when I am rescheduling my class to deque packets, about the time I
 need to
 deque two or more packets NS detects that time has gone backwards!
 
 
 I am running this on FC4 using 2.29 version of NS.
 
 Thanks for any help provided.
 Larry





Re: [ns] REGEDING TO INSTALLATION OF NS-2.29 ON FEDORACORE-4

2006-10-04 Thread Pedro Vale Estrela

Re-download the .tar.gz


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of khushali shah
 Sent: quarta-feira, 4 de Outubro de 2006 12:11
 To: ns-users@ISI.EDU
 Subject: [ns] REGEDING TO INSTALLATION OF NS-2.29 ON FEDORACORE-4
 
 
 hi
 i am trying to install ns-2.29 on fedora core-4,
  i found the error with untar file that mentioned
 below.
 
  gzip:stdin:unexpected end of file
   tar: unexpected EOF in archieve
   tar: unexpected EOF in archieve
   tar:Error is not recoverable.
 
  if u have any idea to solve this problem then please
 reply me.
 any answer from ur side is appreciated .
 
 
 thanks
 khushali
 
 
 
 __
 Yahoo! India Answers: Share what you know. Learn something new
 http://in.answers.yahoo.com/





Re: [ns] Urgent reply needed

2006-09-29 Thread Pedro Vale Estrela


Check  Why can I not place unmatched braces in Tcl comments?
http://wiki.tcl.tk/462 

And http://phaseit.net/claird/comp.lang.tcl/fmm.html
And http://mini.net/tcl/1669.html

If this helps you, contribute and put this info in the ns2 wiki

Regards
Pedro Vale etsrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Bhoi Maheshbhai Mohanbhai
 Sent: sexta-feira, 29 de Setembro de 2006 9:23
 To: ns-users@ISI.EDU
 Subject: [ns] Urgent reply needed
 
 
 I run my protocol of spbm, which uses greedy  perimeter routing,
 
   I can compile my code,but got the error
 
   missing close-brace: possible unbalanced brace in comment
 while executing
 proc create-spbm-mobile-node { id args } {
 global ns ns_ chan prop topo tracefd opt node_
 set ns_ [Simulator instance]
 #if {[Simulator s...(file tcl/mobility/spbm.tcl line 87)
 
 and the Tcl script is as shown below:
 
 
 
   Agent/SPBMAgent set sport_0
 Agent/SPBMAgent set dport_0
 Agent/SPBMAgent set bint_ 0.5 ;# beacon interval
 Agent/SPBMAgent set bdesync_  0.5 ;# beacon desync random component
 Agent/SPBMAgent set bexp_ [expr 3*([Agent/SPBMAgent set
 bint_]+[Agent/SPBMAgent set bdesync_]*[Agent/SPBMAgent set bint_])] ;#
 beacon timeout interval
 Agent/SPBMAgent set pint_ 1.5 ;# peri probe interval
 Agent/SPBMAgent set pdesync_  0.5 ;# peri probe desync random
 component
 Agent/SPBMAgent set lpexp_8.0 ;# peris unused timeout interval
 Agent/SPBMAgent set use_mac_  0;# use link breakage feedback
 from MAC
 Agent/SPBMAgent set use_peri_ 0   ;# probe and use perimeters
 Agent/SPBMAgent set verbose_  0;#
 Agent/SPBMAgent set peri_proact_  1   ;# proactively generate peri
 probes
 Agent/SPBMAgent set use_implicit_beacon_ 0 ;# all packets act as beacons;
 promisc.
 Agent/SPBMAgent set use_planar_   0;# planarize graph
 Agent/SPBMAgent set use_loop_detect_ 0 ;# look for unexpected loops in
 peris
 Agent/SPBMAgent set use_timed_plnrz_ 0 ;# replanarize periodically
   set opt(ragent) Agent/SPBMAgent
   set opt(pos)  NONE   ;# Box or NONE
   if { $opt(pos) == Box } {
  puts *** SPBM using Box configuration...
 }
   Agent instproc init args {
 eval $self next $args
 }
   Agent/SPBMAgent instproc init args
  {
  eval $self next $args
  }
  proc create-spbm-routing-agent { node id } {
  global ns_ ragent_ tracefd opt#  Create the Routing Agent and
 attach it to port 255.
 #
 
 
  set ragent_($id) [new $opt(ragent)]
  set ragent $ragent_($id)
 ## setup address (supports hier-addr) for spbm agent
  ## and mobilenode
 
  set addr [$node node-addr]
   $ragent node $node
 
  if [Simulator set mobile_ip_] {
  $ragent port-dmux [$node set dmux_]
  }
   $node addr $addr
   $node set ragent_ $ragent
 
   #$node attach $ragent 255
   $node attach $ragent [Node set rtagent_port_]
 
   $ns_ at 0.0 $ragent_($id) start-spbm ;   # Drop Target (always on
 regardless of other tracing)
 #
 set drpT [cmu-trace Drop RTR $node]
 $ragent drop-target $drpT
 
 # Log Target
   set T [new Trace/Generic]
 $T target [$ns_ set nullAgent_]
 $T attach $tracefd
 $T set src_ $id
 $ragent tracetarget $T
   # ifq
 $ragent add-ifq [$node set ifq_(0)]
 }
 
 proc create-spbm-mobile-node { id args } {
 global ns ns_ chan prop topo tracefd opt node_
   set ns_ [Simulator instance]
   #if {[Simulator set EnableHierRt_]} {
 if [Simulator hier-addr?]
 {
if [Simulator set mobile_ip_]
  {
  set node_($id) [new MobileNode/MIPMH $args]
  }
  #else
  {
  #set node_($id) [new Node/MobileNode/BaseStationNode $args]
  }
 }
 else
 {
  set node_($id) [new Node/MobileNode]
 }
 set node $node_($id)
 $node random-motion 0  ;# disable random motion
 $node topography $topo
 
 # XXX Activate energy model so that we can use sleep, etc. But put on
 # a very large initial energy so it'll never run out of it.
 
if [info exists opt(energy)]{
$node addenergymodel [new $opt(energy) $node 1000 0.5 0.2]
  }
# This Trace Target is used to log changes in direction
 
  # and velocity for the mobile node.
  #  set T [new Trace/Generic]
 
  $T target [$ns_ set nullAgent_]
  $T attach $tracefd
 
  $T set src_ $id
  $node log-target $T
 
  if ![info exist opt(err)]
  {
  set opt(err) 
  }
  if ![info exist opt(outerr)] {
  set opt(outerr) 
  }
  if ![info exist opt(fec)] {
  set opt(fec) 
  }
  $node add-interface $chan $prop $opt(ll) $opt(mac) \
$opt(ifq) $opt(ifqlen) $opt(netif) $opt(ant) $topo $opt(err)
 $opt(outerr) $opt(fec)
   # Create a Routing Agent for the Node
 
  #  create-$opt(rp)-routing-agent $node $id
if { $opt(pos) == Box } {  # Box Configuration
 
  #set spacing 200
  set maxrow 7
 
  set col [expr ($id - 1) % $maxrow]
  set row [expr ($id - 1) / $maxrow]
  $node set X_ [expr $col * $spacing]
 

Re: [ns] A router (gateway) between two ad hoc networks

2006-09-29 Thread Pedro Vale Estrela



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of [EMAIL PROTECTED]
 Sent: quinta-feira, 28 de Setembro de 2006 9:44
 To: ns-users@ISI.EDU
 Subject: [ns] A router (gateway) between two ad hoc networks
 
 
 Hello,
 
 I am trying to implement a router (gateway) between two ad hoc networks
 using hierarchical addressing and in two different domains. As an
 example:
 
 MANET 1:
 1.0.1
 1.0.2
 
 MANET 2:
 2.0.1
 2.0.2
 2.0.3
 
 A shortcut solution is to use two BaseStationNodes, i.e.:
 
 BSNode1: 1.0.0
 BSNode2: 2.0.0
 
 And linking them with a full duplex link. Since the characteristics of
 the wired link will interfere with the simulation, I do not like this
 solution.
This is a good point
To minimize it, i suggest you to make a simple wired link with
0.1 delay and infinite bandwidth 


 The better solution is to manipulate the ns-bsnode.tcl implementation
 for supporting two wireless interfaces in different domains.
This requires a manet protocol which is hierarchical-aware, which I don't
think the implemented Ns2 protocols support. The other solution has the
benefit of not requiring MANET protocols any changes.

 Could you provide me a solution for this, if anyone has a better one, or
 implemented one?
 
 Regards,
 Majid
 
 ***
 Majid Ghader
 Research Officer
 Centre for Communication Systems Research
 University of Surrey, Guildford, United Kingdom
 
 http://www.ee.surrey.ac.uk/showstaff?M.Ghader
 
 ***
 
 
 





Re: [ns] Filtering Columns from output trace file

2006-09-29 Thread Pedro Vale Estrela


Try

cat trace.tr | awk ' { print $2 $6 $8 } '


PS: Good subjects, as in this case, will get you the answers!

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Aleksandar Smolovic
 Sent: sexta-feira, 29 de Setembro de 2006 16:11
 To: NS-Users
 Subject: [ns] Filtering Columns from output trace file
 
 
 Hi all,
 
 I have a basic NS2 question.
 
 After executing tcl script, I have result files on my HDD. I have output
 trace file, let's say out.tr. Now I want to draw some graphics. My
 out.tr files have 12 columns and I need only 2. How to do it ?
 
 I saw that in documentation people mention column.pl perl script fajl,
 for this purpose, but I cannot find how to use it.
 
 Can somebody help me with filtering 2 columns from trace file?
 
 Thanks.




Re: [ns] Filtering Columns from output trace file

2006-09-29 Thread Pedro Vale Estrela


cat trace.tr | awk ' { print $2\t\t$8 } '


hint: check this small doc and associated tools to answer a lot of questions
ns-2 for the impatient: http://icapeople.epfl.ch/aad/teaching/ns/

 -Original Message-
 From: Aleksandar Smolovic [mailto:[EMAIL PROTECTED]
 Sent: sexta-feira, 29 de Setembro de 2006 16:50
 To: [EMAIL PROTECTED]
 Subject: Re: [ns] Filtering Columns from output trace file
 
 Thank you.
 
 How to make delimiter between columns in new file. It should be done
 during
 creation of new file?
 
 
 - Original Message -
 From: Pedro Vale Estrela [EMAIL PROTECTED]
 To: 'Aleksandar Smolovic' [EMAIL PROTECTED]; 'NS-Users' 
 ns-users@ISI.EDU
 Sent: Friday, September 29, 2006 5:42 PM
 Subject: RE: [ns] Filtering Columns from output trace file
 
 
 
 Try
 
 cat trace.tr | awk ' { print $2 $6 $8 } '
 
 
 PS: Good subjects, as in this case, will get you the answers!
 
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
 Behalf
  Of Aleksandar Smolovic
  Sent: sexta-feira, 29 de Setembro de 2006 16:11
  To: NS-Users
  Subject: [ns] Filtering Columns from output trace file
 
 
  Hi all,
 
  I have a basic NS2 question.
 
  After executing tcl script, I have result files on my HDD. I have output
  trace file, let's say out.tr. Now I want to draw some graphics. My
  out.tr files have 12 columns and I need only 2. How to do it ?
 
  I saw that in documentation people mention column.pl perl script fajl,
  for this purpose, but I cannot find how to use it.
 
  Can somebody help me with filtering 2 columns from trace file?
 
  Thanks.





Re: [ns] LossMonitor - can't read, no such variable

2006-09-29 Thread Pedro Vale Estrela

Ahh, the ever challenging TCL syntax...

a) Check Frequently Made Mistakes™ in Tcl
http://phaseit.net/claird/comp.lang.tcl/fmm.html

b) try like this:

 proc record {} {
  puts stderr recording
  global sink f0   ;#   changed line
  set ns [Simulator instance]
  set time 0.5
  set bw0 [$sink(1) set bytes_]
  set now [$ns now]
  puts $f0 $now [expr $bw0]
  $ns at [expr $now+$time] record
 }




 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Renata Vidal
 Sent: sexta-feira, 29 de Setembro de 2006 19:54
 To: ns-users
 Subject: [ns] LossMonitor - can't read, no such variable
 
 
 Why I can't set a variable like this: SinkCBR($i) ?
 Its got me crazy! If I set each variable like SinkCBR0, SinkCBR1 and
 so on, its be OK, but if I try SinkCBR($i) or SinkCBR$i I see the
 message no such variable.
 Whats is wrong?
 
 -- Forwarded message --
 From: Renata Vidal [EMAIL PROTECTED]
 Date: Sep 28, 2006 2:47 PM
 Subject: LossMonitor - can't read, no such variable
 To: ns-users ns-users@isi.edu
 
 
 Hi,
 
 I was trying to use the LossMonitor, but I see the message:
 ns: record: can't read sink(1): no such variable
 while executing
 $sink(1) set bytes_
 (procedure record line 12)
 invoked from within record
 
 This a peace of my code, I don't know whats is wrong:
 
 (..)
 set sink($i) [new Agent/LossMonitor]
 $ns attach-agent $s($i) $tcp($i)
 $ns attach-agent $r($i) $sink($i)
 $ns connect $tcp($i) $sink($i)
 (..)
 proc record {} {
  puts stderr recording
  global sink(1) f0
  set ns [Simulator instance]
  set time 0.5
  set bw0 [$sink(1) set bytes_]
  set now [$ns now]
  puts $f0 $now [expr $bw0]
  $ns at [expr $now+$time] record
 }
 
 Any Clue?
 
 --
 Renata Vidal
 Triste é o destino de quem tenta vencer as batalhas e ter sucesso nos
 ataques sem cultivar o espírito da iniciativa (A Arte da Guerra – SUN
 TSU – pg 102)
 
 
 --
 Renata Vidal
 Triste é o destino de quem tenta vencer as batalhas e ter sucesso nos
 ataques sem cultivar o espírito da iniciativa (A Arte da Guerra – SUN
 TSU – pg 102)





Re: [ns] trouble with error model over wired links

2006-09-29 Thread Pedro Vale Estrela


Hi there,
This is another fine post to the ns-users mailing list. 
Good subject, good question overall == totally in line with
http://www.catb.org/~esr/faqs/smart-questions.html

the problem is that you are putting the loss-model in all 3 links; 
I report exactly the same tracea and NAM problems.

Instead, Try this:

#$ns link-lossmodel $em $n(0) $n(1)
$ns link-lossmodel $em $n(1) $n(2)
#$ns link-lossmodel $em $n(2) $n(3)


pedro vale estrela
http://tagus.inesc-id.pt/~pestrela/ns2/




 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Abdul Jabbar
 Sent: sexta-feira, 29 de Setembro de 2006 17:45
 To: ns-users@ISI.EDU
 Subject: [ns] trouble with error model over wired links
 
 
 Hello,
 
 I am having unusual trouble getting a simple error model to work over
 wired links in ns2.29. I have checked the mailing list archives and
 could not find a similar problem/solution. Below is my tcl script which
 represents a simple network topology of 3 nodes connected in a chain
 using duplex-links. I have a CBR/UDP flow between the nodes 0 and 3. The
 flow path is 0-1-2-3.
 
 If I don't use any error on the links, everything works fine as is
 confirmed by the trace file and the nam visualization.
 
 However, if I include a simple error model and attach it to each of the
 three links, the whole simulation goes awry. In the trace file I see
 packets going from node 0 to node 1. There is no data flow between node
 2 and node 3 and there is a data flow between nodes 2 and 3. Basically
 the packets disappear  on node 1 and magically reappear at node 2.  In
 nam visualization, it is even worse...there is just one flow between
 nodes 0 and 1thats it.no other data flows. Changing the error
 rate does not help.
 
 When I have a more complex topology ( like a mesh topology of 8x8 nodes)
 the whole simulation goes so bizarre, that it is even hard to trace what
 is going wrong. That's why I am using this simple 3 node topology to
 illustrate the problem.
 
 I am hoping that there is some fundamental mistake on my part. Please
 point in the right direction.
 
 Thanks,
 Abdul.
 
 Here's the TCL script
 --
 set ns [new Simulator]
 set tf [open simout.tr w]
 $ns trace-all $tf
 set nf [open simout.nam w]
 $ns namtrace-all $nf
 proc finish {} {
   global ns nf tf
   $ns flush-trace
   close $nf
   close $tf
   exec nam simout.nam 
   exit 0
 }
 
 for {set i 0} {$i  4} {incr i} {
   set n($i) [$ns node]
 }
 
 $ns duplex-link $n(0) $n(1) 500Mb 10ms DropTail
 $ns duplex-link $n(1) $n(2) 500Mb 10ms DropTail
 $ns duplex-link $n(2) $n(3) 500Mb 10ms DropTail
 
 set em [new ErrorModel]
 $em unit pkt
 $em set rate_ 0.01
 $em ranvar [new RandomVariable/Uniform]
 $em drop-target [new Agent/Null]
 
 $ns link-lossmodel $em $n(0) $n(1)
 $ns link-lossmodel $em $n(1) $n(2)
 $ns link-lossmodel $em $n(2) $n(3)
 
 set udp0 [new Agent/UDP]
 $ns attach-agent $n(0) $udp0
 set cbr0 [new Application/Traffic/CBR]
 $cbr0 set packetSize_ 1000
 $cbr0 set interval_ 0.005
 $cbr0 attach-agent $udp0
 
 set null0 [new Agent/Null]
 $ns attach-agent $n(3) $null0
 $ns connect $udp0 $null0
 
 $ns at 0.5 $cbr0 start
 $ns at 4.5 $cbr0 stop
 $ns at 5.0 finish
 
 $ns run





Re: [ns] LossMonitor - can't read, no such variable

2006-09-29 Thread Pedro Vale Estrela

Instead of that, define the sink as an array variable and use it as normal
http://wiki.tcl.tk/1032




set sink(1) [new Agent/TCPSink]

...

Proc something { }  {
global sink

...
set bw0 [$sink(1) set bytes_]

}

 -Original Message-
 From: Renata Vidal [mailto:[EMAIL PROTECTED]
 Sent: sexta-feira, 29 de Setembro de 2006 20:48
 To: [EMAIL PROTECTED]
 Cc: ns-users
 Subject: Re: [ns] LossMonitor - can't read, no such variable
 
 My variables are called sink($i), the () is in the name of them. I
 tried scape it but it not solve the problem. If I change for something
 like sink$i I have errors on attach-agent command.
 This example below don't works for me...
 Any clue?
 
 On 9/29/06, Pedro Vale Estrela [EMAIL PROTECTED] wrote:
  Ahh, the ever challenging TCL syntax...
 
  a) Check Frequently Made Mistakes™ in Tcl
  http://phaseit.net/claird/comp.lang.tcl/fmm.html
 
  b) try like this:
 
   proc record {} {
puts stderr recording
global sink f0   ;#   changed line
set ns [Simulator instance]
set time 0.5
set bw0 [$sink(1) set bytes_]
set now [$ns now]
puts $f0 $now [expr $bw0]
$ns at [expr $now+$time] record
   }
 
 
 
 
   -Original Message-
   From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
 Behalf
   Of Renata Vidal
   Sent: sexta-feira, 29 de Setembro de 2006 19:54
   To: ns-users
   Subject: [ns] LossMonitor - can't read, no such variable
  
  
   Why I can't set a variable like this: SinkCBR($i) ?
   Its got me crazy! If I set each variable like SinkCBR0, SinkCBR1 and
   so on, its be OK, but if I try SinkCBR($i) or SinkCBR$i I see the
   message no such variable.
   Whats is wrong?
  
   -- Forwarded message --
   From: Renata Vidal [EMAIL PROTECTED]
   Date: Sep 28, 2006 2:47 PM
   Subject: LossMonitor - can't read, no such variable
   To: ns-users ns-users@isi.edu
  
  
   Hi,
  
   I was trying to use the LossMonitor, but I see the message:
   ns: record: can't read sink(1): no such variable
   while executing
   $sink(1) set bytes_
   (procedure record line 12)
   invoked from within record
  
   This a peace of my code, I don't know whats is wrong:
  
   (..)
   set sink($i) [new Agent/LossMonitor]
   $ns attach-agent $s($i) $tcp($i)
   $ns attach-agent $r($i) $sink($i)
   $ns connect $tcp($i) $sink($i)
   (..)
   proc record {} {
puts stderr recording
global sink(1) f0
set ns [Simulator instance]
set time 0.5
set bw0 [$sink(1) set bytes_]
set now [$ns now]
puts $f0 $now [expr $bw0]
$ns at [expr $now+$time] record
   }
  
   Any Clue?
  
   --
   Renata Vidal
   Triste é o destino de quem tenta vencer as batalhas e ter sucesso nos
   ataques sem cultivar o espírito da iniciativa (A Arte da Guerra – SUN
   TSU – pg 102)
  
  
   --
   Renata Vidal
   Triste é o destino de quem tenta vencer as batalhas e ter sucesso nos
   ataques sem cultivar o espírito da iniciativa (A Arte da Guerra – SUN
   TSU – pg 102)
 
 
 
 
 
 --
 Renata Vidal
 Triste é o destino de quem tenta vencer as batalhas e ter sucesso nos
 ataques sem cultivar o espírito da iniciativa (A Arte da Guerra – SUN
 TSU – pg 102)




[ns] FW: NS-2 2.29.3 and otcl debugger page

2006-09-19 Thread Pedro Vale Estrela


Until I take the time to re-test the installation procedure of my own
debugger utilities in lastest ns2.29, 
here are some detailed tips by paul craven (thanks to him):


-Original Message-
From: paul [mailto:[EMAIL PROTECTED] 
Sent: terça-feira, 23 de Maio de 2006 20:03
To: [EMAIL PROTECTED]
Subject: NS-2 2.29.3 and your debugger page

I tried your TCL debugging page:

http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html

I couldn't use ns2.28 because my compiler version was too new. So I 
tried what you wrote on 2.29.3. Here is my experience on getting it running:

First, it failed on the build:

g++ -c -Wall  -DTCP_DELAY_BIND_ALL -DNO_TK -DTCLCL_CLASSINSTVAR  
-DNDEBUG -DLINUX_TCP_HEADER -DUSE_SHM -DHAVE_LIBTCLCL -DHAVE_TCLCL_H 
-DHAVE_LIBOTCL1_11 -DHAVE_OTCL_H -DHAVE_LIBTK8_4 -DHAVE_TK_H 
-DHAVE_LIBTCL8_4 -DHAVE_TCL_H  -DHAVE_CONFIG_H -DNS_DIFFUSION 
-DSMAC_NO_SYNC -DCPP_NAMESPACE=std -DUSE_SINGLE_ADDRESS_SPACE -Drng_test 
-I. -I. -I/home/ubuntu/ns-allinone-2.29/tclcl-1.17 
-I/home/ubuntu/ns-allinone-2.29/otcl-1.11 
-I/home/ubuntu/ns-allinone-2.29/include 
-I/home/ubuntu/ns-allinone-2.29/include -I/usr/include/pcap -I./tcp 
-I./sctp -I./common -I./link -I./queue -I./adc -I./apps -I./mac 
-I./mobile -I./trace -I./routing -I./tools -I./classifier -I./mcast 
-I./diffusion3/lib/main -I./diffusion3/lib -I./diffusion3/lib/nr 
-I./diffusion3/ns -I./diffusion3/filter_core -I./asim/ -I./qs 
-I./diffserv -I./satellite -I./wpan -o emulate/net-pcap.o 
emulate/net-pcap.cc
emulate/net-pcap.cc:60:18: error: pcap.h: No such file or directory
...

I included libpcap package on my ubuntu installation. That changed the 
error to a link error:
emulate/net-pcap.o: In function `PcapNetwork::close()':
net-pcap.cc:(.text+0x9f): undefined reference to `pcap_close'
emulate/net-pcap.o: In function `PcapNetwork::filter(char const*)':
net-pcap.cc:(.text+0xea): undefined reference to `pcap_compile'

So then I added -lpcap to the makefile and it linked ok.

Then things worked ok until hooking up the mash thing with the patch. 
Had to do that manually:

[EMAIL PROTECTED]:~/ns-allinone-2.29/ns-2.29/tcl/lib$ patch  
ns-lib.tcl.add_MASH.patch
patching file ns-lib.tcl
Hunk #1 FAILED at 32.
1 out of 2 hunks FAILED -- saving rejects to file ns-lib.tcl.rej

No big deal, that is easy.

I got a bit confused with which ns2 directory you meant with:
We're now going to add the tcl-debug-2.0-pmsrve that already contains 
alterations made by me to the debugger. simply decompress the file 
parallel to the ns2 directory, and configure / compile it (at the 
tcl-debug directory).
...but I could figure it out by looking at the context of the other lines.


In your step 5 image, I have no idea what this line does or what you are 
typing or how to make it work for me:
dbg2.2 [EMAIL PROTECTED]
I was ok up until then. I think it is your console prompt, but I don't 
know what it is doing after the debug prompt.

I'm kind of thinking if you included 'wget' of the patch files in your 
script, you could semi-automate the process.

Step 6 forgot to tell you the tk patch should be applied in the common 
subdirectory, and the 'I' is not capitalized like the file name is.

I got the following after compiling:
utils_ns.cc:28:19: error: timip.h: No such file or directory
I was able to comment out the line with no ill effects.

I tried doing the test for step 6 and got:
loading history file ... 3 events added
Main console display active (Tcl8.4.11 / Tk8.4.11)
(ns-2.29) 4 % debug 1
warning: Script debugging disabled.  Reconfigure with --with-tcldebug, 
and recompile.
1

So I did as it suggested, and still got the same thing.

Then I remembered I was to configure like step 5 showed.

And now it seems to be ok.




Re: [ns] RTP under NS2

2006-09-06 Thread Pedro Vale Estrela



a)  in tcl/lib/ns-delfault.tcl, add

Session/RTP::debug_ set 0

then recompile ns2
then, in your script, use 
Session/RTP::debug_ set 1   ;# can also be  ON 

to enable debugging



b) you need to upgrade your script in the part that you define the UDP port
in use of the agents

pedro estrela


-- Mensagem Original --
De: Sofiane [EMAIL PROTECTED]
Para: ns-users@ISI.EDU
Enviar: 06/09/2006
Assunto: [ns] RTP under NS2


Dear Collagues
  when simulating the simple-rtp.tcl  i have get the message  bellow
  any help are welcome
   
  Thanks
   
  
 
  [EMAIL PROTECTED] ~/ns-allinone-2.29/ns-2.29/tcl/ex
$ ns simple-rtp.tcl
warning: no class variable Session/RTP::debug_
  see tcl-object.tcl in tclcl for info about this warning.
  warning: no class variable Session/RTP::debug_
  see tcl-object.tcl in tclcl for info about this warning.
  warning: no class variable Session/RTP::debug_
  see tcl-object.tcl in tclcl for info about this warning.
  warning: no class variable Session/RTP::debug_
  see tcl-object.tcl in tclcl for info
about this warning.
  Warning dst_ is no longer being supported in NS. dst_ -2147483648
Use dst_addr_ and dst_port_ instead
Warning dst_ is no longer being supported in NS. dst_ -2147483647
Use dst_addr_ and dst_port_ instead
Warning dst_ is no longer being supported in NS. dst_ -2147483648
Use dst_addr_ and dst_port_ instead
Warning dst_ is no longer being supported in NS. dst_ -2147483647
Use dst_addr_ and dst_port_ instead
Warning dst_ is no longer being supported in NS. dst_ -2147483648
Use dst_addr_ and dst_port_ instead
Warning dst_ is no longer being supported in NS. dst_ -2147483647
Use dst_addr_ and dst_port_ instead
Warning dst_ is no longer being supported in NS. dst_ -2147483648
Use dst_addr_ and dst_port_ instead
Warning dst_ is no longer being supported in NS. dst_ -2147483647
Use dst_addr_ and dst_port_ instead

   
  





--
  AL Al Bayt University  
 Prince Hussein bin Abdullah Information Technology College
   ( http://www.aabu.edu.jo/it/index.htm )
  Jordan
 


-
Do you Yahoo!?
 Get on board. You're invited to try the new Yahoo! Mail.








Re: [ns] Problem with the queue command

2006-09-06 Thread Pedro Vale Estrela


Use

set link12 [$ns simplex-link $n1 $n2 512Kb 0ms DropTail]

(it has a missing space char nect to [)

Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of fafou
 Sent: terça-feira, 5 de Setembro de 2006 16:24
 To: ns-users@ISI.EDU
 Subject: [ns] Problem with the queue command
 
 
 
 Hi everybody,
 I have written these two lines of tcl code:
 --
 
 set link01 [$ns simplex-link $n0 $n1 512Kb 0ms DropTail]
 set queue01 [$link01 queue]
 
 set link12[$ns simplex-link $n1 $n2 512Kb 0ms DropTail]
 set queue12 [$link12 queue]
 --
 
 
 when launching the execution this error message is shown
 
 --
 ---
 unknown command _o47 _o57
 when executing $link12 queue
 --
 
 
 This means that the first command $link01 queue worked well but not the
 second one.
 The more funny is that when I delete the first two lines, there isn't any
 problem.
 
 Can anybody help to solve this problem?
 Ah, this problem appears with both ns-2.27 and ns-2.28 versions
 
 Thanks a lot!
 
 
 
 
 
 --
 View this message in context: http://www.nabble.com/Problem-with-the-
 %22queue%22-command-tf2221427.html#a6154133
 Sent from the ns-users forum at Nabble.com.




Re: [ns] Issues debugginf ns-2.29

2006-09-06 Thread Pedro Vale Estrela


a) It hasn't the function names for the NS proc (as it has for tcl procs)
Is ns2 stuff compiled for debugging? (-g gcc option)?

b) use DDD and valgrind 
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging.html#_Toc122255042


Pedro Estrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Raghu-kisore Neelisetti
 Sent: quarta-feira, 6 de Setembro de 2006 18:49
 To: ns-users@ISI.EDU
 Subject: [ns] Issues debugginf ns-2.29
 
 
 Hello Every one,
I made some modification to the ns-2.29 and was running my new
 version. But after running for some time it crashes leaving the
 following information. I was wondering if any one has suggestion about
 to make use of the following information to debug ns-2.29.
 
 *** glibc detected *** ../ns: corrupted double-linked list: 0x00c1d8b8
 ***
 === Backtrace: =
 /lib/libc.so.6[0xb59b71]
 /lib/libc.so.6[0xb5ad8d]
 /lib/libc.so.6(malloc+0x74)[0xb5c492]
 /usr//lib/libstdc++.so.6(_Znwj+0x26)[0x220f56]
 /usr//lib/libstdc++.so.6(_Znaj+0x1d)[0x22106d]
 ../ns[0x8064762]
 ../ns[0x8064822]
 ../ns[0x8118778]
 ../ns[0x811788e]
 ../ns[0x8141936]
 ../ns[0x813f54d]
 ../ns[0x811e937]
 ../ns[0x811e9d7]
 ../ns[0x814853f]
 ../ns[0x8053927]
 ../ns[0x8053952]
 ../ns[0x8053b6e]
 ../ns[0x8274032]
 ../ns[0x8277cbe]
 ../ns(TclInvokeStringCommand+0x45)[0x827c155]
 ../ns[0x827d7d1]
 ../ns[0x82a23da]
 ../ns[0x82a8390]
 ../ns[0x82a24c4]
 ../ns[0x82a8390]
 ../ns(TclObjInterpProc+0x222)[0x82cd4a2]
 ../ns(TclProcInterpProc+0x51)[0x82cd835]
 ../ns[0x8277de2]
 ../ns(TclInvokeStringCommand+0x45)[0x827c155]
 ../ns[0x827d7d1]
 ../ns[0x82a23da]
 ../ns[0x82a8390]
 ../ns(TclObjInterpProc+0x222)[0x82cd4a2]
 ../ns(TclProcInterpProc+0x51)[0x82cd835]
 ../ns[0x8277cbe]
 ../ns(TclInvokeStringCommand+0x45)[0x827c155]
 ../ns[0x827d7d1]
 ../ns[0x827ee5d]
 ../ns[0x82be363]
 ../ns[0x82c1315]
 ../ns(__gxx_personality_v0+0x1d3)[0x804d097]
 /lib/libc.so.6(__libc_start_main+0xdf)[0xb0bd5f]
 ../ns(sinh+0x71)[0x804cfe5]
 === Memory map: 
 0016b000-0024b000 r-xp  fd:00 2716753
 /usr/lib/libstdc++.so.6.0.5
 0024b000-0025 rw-p 000df000 fd:00 2716753
 /usr/lib/libstdc++.so.6.0.5
 0025-00256000 rw-p 0025 00:00 0
 004c1000-004c2000 r-xp 004c1000 00:00 0  [vdso]
 00ab2000-00ac4000 r-xp  fd:00 2455315/lib/libnsl-2.3.5.so
 00ac4000-00ac5000 r--p 00011000 fd:00 2455315/lib/libnsl-2.3.5.so
 00ac5000-00ac6000 rw-p 00012000 fd:00 2455315/lib/libnsl-2.3.5.so
 00ac6000-00ac8000 rw-p 00ac6000 00:00 0
 00ad5000-00aef000 r-xp  fd:00 2455217/lib/ld-2.3.5.so
 00aef000-00af r--p 00019000 fd:00 2455217/lib/ld-2.3.5.so
 00af-00af1000 rw-p 0001a000 fd:00 2455217/lib/ld-2.3.5.so
 00af7000-00c1a000 r-xp  fd:00 2455226/lib/libc-2.3.5.so
 00c1a000-00c1c000 r--p 00123000 fd:00 2455226/lib/libc-2.3.5.so
 00c1c000-00c1e000 rw-p 00125000 fd:00 2455226/lib/libc-2.3.5.so
 00c1e000-00c2 rw-p 00c1e000 00:00 0
 00c22000-00c45000 r-xp  fd:00 2455230/lib/libm-2.3.5.so
 00c45000-00c46000 r--p 00022000 fd:00 2455230/lib/libm-2.3.5.so
 00c46000-00c47000 rw-p 00023000 fd:00 2455230/lib/libm-2.3.5.so
 00c49000-00c4b000 r-xp  fd:00 2455232/lib/libdl-2.3.5.so
 00c4b000-00c4c000 r--p 1000 fd:00 2455232/lib/libdl-2.3.5.so
 00c4c000-00c4d000 rw-p 2000 fd:00 2455232/lib/libdl-2.3.5.so
 00d9c000-00dc r-xp  fd:00 2704035
 /usr/lib/libpcap.so.0.8.3
 00dc-00dc1000 rw-p 00024000 fd:00 2704035
 /usr/lib/libpcap.so.0.8.3
 00dd3000-00ddc000 r-xp  fd:00 2455236
 /lib/libgcc_s-4.0.1-20050727.so.1
 00ddc000-00ddd000 rw-p 9000 fd:00 2455236
 /lib/libgcc_s-4.0.1-20050727.so.1
 08048000-083b1000 r-xp  fd:00 4917311
 /root/TENS/ns-allinone-2.29/ns-2.29/ns
 083b1000-0844c000 rw-p 00368000 fd:00 4917311
 /root/TENS/ns-allinone-2.29/ns-2.29/ns
 0844c000-08454000 rw-p 0844c000 00:00 0
 0928-0a954000 rw-p 0928 00:00 0  [heap]
 b7c0-b7c21000 rw-p b7c0 00:00 0
 b7c21000-b7d0 ---p b7c21000 00:00 0
 b7db5000-b7fb5000 r--p Aborted
 
 Thanks a lot.
 Raghu.
 




Re: [ns] Problem with the queue command

2006-09-06 Thread Pedro Vale Estrela

Use the mash inspector to check the classes of _o47 etc

http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of fafou
 Sent: quarta-feira, 6 de Setembro de 2006 19:57
 To: ns-users@ISI.EDU
 Subject: Re: [ns] Problem with the queue command
 
 
 
 Thank you for repliying but the space char before [ is only missing in the
 mail I wrote and not in the source file.
 So, the problem persists.
 
 Thanks
 
 
 Pedro Vale Estrela wrote:
 
 
 
  Use
 
  set link12 [$ns simplex-link $n1 $n2 512Kb 0ms DropTail]
 
  (it has a missing space char nect to [)
 
  Pedro Vale Estrela
 
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
  Behalf
  Of fafou
  Sent: terça-feira, 5 de Setembro de 2006 16:24
  To: ns-users@ISI.EDU
  Subject: [ns] Problem with the queue command
 
 
 
  Hi everybody,
  I have written these two lines of tcl code:
  ---
 ---
  
  set link01 [$ns simplex-link $n0 $n1 512Kb 0ms DropTail]
  set queue01 [$link01 queue]
 
  set link12[$ns simplex-link $n1 $n2 512Kb 0ms DropTail]
  set queue12 [$link12 queue]
  ---
 ---
  
 
  when launching the execution this error message is shown
 
  ---
 ---
  ---
  unknown command _o47 _o57
  when executing $link12 queue
  ---
 ---
  
 
  This means that the first command $link01 queue worked well but not
 the
  second one.
  The more funny is that when I delete the first two lines, there isn't
 any
  problem.
 
  Can anybody help to solve this problem?
  Ah, this problem appears with both ns-2.27 and ns-2.28 versions
 
  Thanks a lot!
 
 
 
 
 
  --
  View this message in context: http://www.nabble.com/Problem-with-the-
  %22queue%22-command-tf2221427.html#a6154133
  Sent from the ns-users forum at Nabble.com.
 
 
 
 
 
 --
 View this message in context: http://www.nabble.com/Problem-with-the-
 %22queue%22-command-tf2221427.html#a6177635
 Sent from the ns-users forum at Nabble.com.




Re: [ns] [bug] tcl-debugger segfaults when printing stack ('w') FIXED

2006-09-05 Thread Pedro Vale Estrela


Hi!
Patch looks, sounds and runs good; similar (correct) code is already in

char **Dbg_ArgcArgv(argc,argv,copy)
... main_argv = alloc = (char **)ckalloc((argc+1)*sizeof(char
*));


From my initial tests, this has corrected a nasty segmentation fault that
occurred sometimes inside the debugger. 
If you don't already know, I have a modification to enable debugging inside
the TKCon console
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html


I'm forwarding this patch to the ns-developers list
Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Christian Walter
 Sent: terça-feira, 5 de Setembro de 2006 17:35
 To: ns-users@ISI.EDU
 Subject: [ns] [bug] tcl-debugger segfaults when printing stack ('w')
 
 
 [Bug Report]
 
 -
 Category:  Run Time - Segmentation Fault
 Package:   other tcl-debug-2.0
 OS:RHEL4/OTHERS
 Environment Variables:
 
 
 -
 Description:
 
 Description of Problem:
 
 The tcl debugger tcl-debug 2.0 from Don Libes contains a bug in the
 function print_objc (Dbg.c:445) where not enough memory is allocated. The
 variable argv[] should hold an array of char * pointers. The call to
 malloc misses parentheses around objc + 1 and allocates insufficient
 memory.
 A recent GLIBC as well as valgrind detect the error and aborts program
 execution. As a consequence the simulator execution is aborted by the
 system environment.
 
 How Easily Reproducible: every time
 
 Steps to Reproduce:
 1. Start ns2
 2. Enter 'debug 1'
 3. Hit s until the stack has at least two elements. starting ns and using
 's' three or more time is sufficient.
 3. Simply execute some commands where you should use 'w' multiple times.
 valgrind will immediately detect it. glibc runtime checks sometimes.
 
 Requirements:
 Ns compiled with --with-debug and tcl-debug. In addition the following
 system components/libraries are of interest:
 
 Linux: CentOS release 4.4
 GLIBC: glibc-2.3.4-2.25
 valgrind: valgrind-3.1.1-1.EL4
 
 Actual Results:
 
 GLIBC:
 dbg2.7 w
  0: application
 *1: history {add} {s
 }
  2: llength {add {s
 }}
 dbg2.8 w
 *** glibc detected *** malloc(): memory corruption (fast): 0x08629bf8 ***
 Aborted
 
 VALGRIND:
 
 dbg2.6 s
 2: set len [llength $args]
 dbg2.7 w
  0: application
 ==12203== Invalid write of size 4
 ==12203==at 0x8242DFB: print_objv (Dbg.c:445)
 ==12203==by 0x8242EB5: PrintStackBelow (Dbg.c:469)
 ==12203==by 0x8242EED: PrintStack (Dbg.c:488)
 ==12203==by 0x82432E5: debugger_trap (Dbg.c:696)
 
 Expected Results:
 No output
 
 Additional Information:
 Patch is supplied below:
 --- Dbg.c.orig  2000-08-16 00:09:30.0 +0200
 +++ Dbg.c   2006-09-05 17:05:43.0 +0200
 @@ -440,7 +440,7 @@
  char **argv;
  int argc;
  int len;
 -argv = (char **)ckalloc(objc+1 * sizeof(char *));
 +argv = (char **)ckalloc((objc + 1) * sizeof(char *));
  for (argc=0 ; argcobjc ; argc++) {
 argv[argc] = Tcl_GetStringFromObj(objv[argc],len);
  }
 
 Kind regards,
   Christian Walter




Re: [ns] idle/sleep state

2006-09-04 Thread Pedro Vale Estrela



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Julian Monteiro
 Sent: segunda-feira, 4 de Setembro de 2006 15:40
 To: Alex Triffitt
 Cc: ns-users@ISI.EDU
 Subject: Re: [ns] idle/sleep state
 
 
 Hello Alex,
 
 I'm not sure if this is the best solution, but you can use the 'on' and
 'off' commands in the mobile node to put it to sleep.
 Unfortunately these commands doesn't work.in NS2 off the box (as of
 version 2.29.3)
 
 To do so, you need comment out a call to a unexistent tcl function in
 the line 202 of ns-2.29/common/mobilenode.cc :
 // Remove this line. I didn't found this function anywhere!.
 // tcl.evalf(%s reset-state, str);
 
ns2 grep reset-state */*.cc

this function is defined in diffusion/diffusion.cc , flodding.cc and
omni-cast.cc


 After that, to put a node to sleep, mix the commands 'on' and 'off' in
 the scenery model, e.g:
 $ns_ at 3.0 $node_(0) off
 $ns_ at 10.0 $node_(0) on
 
 Also, the Energy Model must be enabled to use that, i.e, put above line
 in node configuration:
 -energyModel EnergyModel
 


 Best Regards,
 Julian
 p.s. How do I submit this patch to the NS2 tree?

An excellent question indeed.
Short answer:
   diff -C3 original file modified file  idle.patch

persons are able to apply your patch using
   cat idle.patch | patch 


longer answer:
   check step 7 of
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging3.html

if you have more questions please ask; however, please submit your patch
only after you are sure what is that reset-state code about!

Pedro Vale Estrela








 
 
 Alex Triffitt wrote:
  I am wanting to put a node into a idle/sleeping state where it will not
 listen for transmitted packets and to all intense and purposes is not
 participating in the MANET i've created. Could someone possiblely tell me
 how this is done or point out where I can find out how to do this
  Kindest regardsAlex
 




Re: [ns] why does the code below doesn't work as expected

2006-08-30 Thread Pedro Vale Estrela


use
  $udapp set rate_ 1Mb


pedro Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Sandeep
 Sent: quarta-feira, 30 de Agosto de 2006 7:47
 To: ns-users@ISI.EDU
 Subject: [ns] why does the code below doesn't work as expected
 
 
 Hi
   In the below code whatever Mac/802_11 parameters I set are not taking
 effect. For instance eventhough I set _dataRate  11mbps, throughput is
 coming around 400kbps, which is the default rate for udp. If I change
 _dataRate, basicRate_ or PLCPDataRate_ , there is absolutely no effect.
 Please if anyone can help, because I require them in my work.
 Thanks in advance,
 regards,
 Sandeep.
   1 set val(chan)  Channel/WirelessChannel;# channel type
   2 set val(prop)  Propagation/TwoRayGround   ;#
 radio-propagation model
   3 set val(netif) Phy/WirelessPhy;# network
 interface type
   4 set val(mac)   Mac/802_11 ;# MAC type
   5 set val(ifq)   Queue/DropTail/PriQueue;# interface queue
 type
   6 set val(ll)LL ;# link layer type
   7 set val(ant)   Antenna/OmniAntenna;# antenna model
   8 set val(ifqlen)50 ;# max packet in ifq
   9 set val(nn)2  ;# number of
 mobilenodes
  10 set val(rp)DSDV   ;# routing protocol
  11 set val(x) 800
  12 set val(y) 800
  13
  14 Phy/WirelessPhy set bandwidth_ 11Mb
  15
  16 Mac/802_11 set SlotTime_  0.20;# 20us
  17 Mac/802_11 set SIFS_  0.10;# 10us
  18 Mac/802_11 set PreambleLength_144 ;# 144 bit
  19 Mac/802_11 set PLCPHeaderLength_  48  ;# 48 bits
  20 Mac/802_11 set PLCPDataRate_  1.0   ;# 1Mbps
  21 Mac/802_11 set dataRate_  11.0  ;# 11Mbps
  22 Mac/802_11 set basicRate_ 1.0   ;# 1Mbps
  23
  24 set ns [new Simulator]
  25 set tr [open trace.tr w]
  26 $ns trace-all $tr
  27 set na [open trace.nam w]
  28 $ns namtrace-all-wireless $na $val(x) $val(y)
  29 set chan1 [new $val(chan)]
  30 set topo [new Topography]
  31 $topo load_flatgrid 500 500
  32 create-god 2
  33
  34 proc finish {} {
  35global ns tr na
  36$ns flush-trace
  37$ns nam-end-wireless [$ns now]
  38close $tr
  39close $na
  40exec nam trace.nam 
  41exit 0;
  42 }
  43
  44 $ns node-config   -adhocRouting $val(rp)\
  45  -llType $val(ll) \
  46  -macType $val(mac) \
  47  -antType $val(ant) \
  48  -propType $val(prop) \
  49  -phyType $val(netif) \
  50  -channel $chan1 \
  51  -topoInstance $topo \
  52  -agentTrace ON \
  53  -routerTrace ON \
  54  -macTrace ON \
  55  -movementTrace OFF\
  56  -ifqType $val(ifq) \
  57  -ifqLen $val(ifqlen)
  58
  59 for {set i 0} {$i  2} {incr i} {
  60 set node_($i) [$ns node]
  61 $node_($i) random-motion 0
  62 }
  63
  64 $node_(0) set X_ 0
  65 $node_(0) set Y_ 0
  66 $node_(0) set Z_ 0
  67 $node_(1) set X_ 10
  68 $node_(1) set Y_ 0
  69 $node_(1) set Z_ 0
  70
  71 $node_(0) color green
  72 $node_(1) color green
  73
  74 set udp [new Agent/UDP]
  75 set des [new Agent/Null]
  76 $ns attach-agent $node_(0) $udp
  77 $ns attach-agent $node_(1) $des
  78 $ns connect $udp $des
  79
  80 set udapp [new Application/Traffic/CBR]
  81 $udapp attach-agent $udp
  82 $udapp set fid_ 1
  83 $udapp set packetSize_ 400
  84
  85 $ns at 1.0 $udapp start
  86 $ns at 30.0 $udapp stop
  87 $ns at 30.0 $ns halt
  88 ns at 30.0 finish
  89 $ns run




Re: [ns] change the CBR bit rate

2006-08-30 Thread Pedro Vale Estrela


You just:

a) get a pointer to the generator and modify its rate_ variable;
b) modify it in TCL as normal, and call this code with tcl.eval(...)


as explained here:
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_tips.html#_Toc124667333



If you find this useful, please contribute to the ns2 wiki with the solution

Pedro Vale Estrela


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Albalas F (AT)
 Sent: terça-feira, 29 de Agosto de 2006 22:48
 To: ns-users@ISI.EDU
 Subject: [ns] change the CBR bit rate
 
 
 Hi all,
 
 
 
 How can I change (increase or decrease ) the Traffic bit rate during the
 simulation, I mean at the c++ programme.
 
 
 
 Thanks
 
 Firas
 
 




[ns] Application/Traffic/CBR set interval + setpacketsize - undocumented behaviour explained

2006-08-30 Thread Pedro Vale Estrela

Hi all,

I've found, in the hard way, that interval_ is a special pseudo-variable
of Application/Traffic/CBR and has unexpecded and undocumented behaviour. 

If the users sets the interval, followed by the packetsize, the specified
interval is changed to make the __rate__ constant, which is not probably the
user is trying to achieve.

This is exemplified by this test script; note that the difference is the
order of the lines setting interval and packetsize


# 
set ns [new Simulator]
set opt(CBR_interval)  0.1  ;#  100 packets per second
set opt(packet_size)   1000 ;# 1000 bytes per packet


set generator1 [new Application/Traffic/CBR]
$generator1 set packetSize_ $opt(packet_size)
$generator1 set interval_   $opt(CBR_interval)
puts Actual interval for generator 1: [$generator1 set interval_ ]
Desired interval:  $opt(CBR_interval)  

set generator2 [new Application/Traffic/CBR]
$generator2 set interval_   $opt(CBR_interval)
$generator2 set packetSize_ $opt(packet_size)   
puts Actual interval for generator 2: [$generator2 set interval_ ]
Desired interval:  $opt(CBR_interval)  

exit
#


Which results, in ns2.29:
Actual interval for generator 1: 0.10001   Desired interval:  0.1  
Actual interval for generator 2: 0.4761904761616   Desired interval:  0.1  


The documentation is ambiguous:
http://www.isi.edu/nsnam/ns/doc/node498.html
The setting of a CBR object's rate_ and interval_ are mutually exclusive
... In a simulation, either a rate or an interval (but not both) should be
specified for a CBR object.

##

To solve this, either:
  a) make sure you specify the interval AFTER the packetsize;
  b) use my patch that solves this problem

http://mailman.isi.edu/pipermail/ns-developers/2006-August/002375.html
http://mailman.isi.edu/pipermail/ns-developers/2006-August/002377.html

Pedro Vale Estrela





Re: [ns] rtmodel-at down seems to do nothing

2006-08-28 Thread Pedro Vale Estrela

A quick test showed that the problem is that is not possible to make a link
go down __at runtime__. 

Eg, at configuration time this works:
...
$ns rtmodel-at 7.0 down $node_a $node_b


but the functionally equivalent at run-time will not work, and no error will
be produced:


proc my_test { op a b } {
set ns [Simulator instance]
set now [$ns now]

puts Current time $now; trying to make link down...
$ns rtmodel-at [expr $now + 0.01] $op $a $b
}


configuration time
$ns at 7.0 my_test down $node_a $node_b


-

this bug is probably related to this manual type of routing, as used below

(see /tcl/lib/rtglib/dynamics.tcl)

Simulator instproc rtmodel-at {at op args} {
set parms [list $op $at]
eval $self rtmodel Manual [list $parms] $args
}

if you need otcl debugging capabilities, check my page
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html)

When you find the bug, please make a patch and report in the ns-developers
mailing list

Regards
Pedro Vale Estrela



 Hello,
 
 The Link Failure code from Marc Greis' Tutorial works fine for me.
 However, when I use almost the exact same code from my app, the code
 doesn't seem to do anything.  There are no corresponding entries in the
 network trace or nam files, despite the fact that the code executes.
 
 I'm calling the code from C++ via:
 
 Tcl tcl = Tcl::instance();
 tcl.evalf( $ns rtmodel-at %f down $n(%d) $n(%d),
   Scheduler::instance().clock() + 0.0001, ip1, ip2 );

This invocation is just fine;


 
 I know the code is executing, but nothing seems to happen.
Same symptoms here!

 
 There are a few posts on the ns2 listserv archive (e.g., rtmodel-at
 doesn't work inside a procedure), but unfortunately these posts don't
 have replies.  

Probably these tried to do the same thing, eg at run-time

 Also, I'm not really running rtmodel-at from within a
 procedure, unless tcl.evalf counts.
Yes, it counts as an TCL procedure


 A few other helpful notes:  I'm not using $ns rtproto DV because I
 don't want dynamic routing.  I don't call $ns rtproto at all.  Links
using session routing, it had the same problem


 are created using $ns duplex-link.
No problem there







Re: [ns] Transmission and Interference Range

2006-07-13 Thread Pedro Vale Estrela


Check this code that I'm using to set the power based on the circular
distance in meters:


Usage:

set coverage [CellCoverage 1 1 $MAX_X $MAX_Y $OVERLAP]
set power [SetPt $coverage]
Phy/WirelessPhy set Pt_ $power
$ns node-config -rxPower $power -txPower $power

-




###
###
### generic POWER functions


#
# Given overlaping area, calculate the desired coverage
# expects a BOUNDING BOX for the cell, with the mobile in the center
#
proc CellCoverage { x1 y1 x2 y2 overlap} {

set d2 [expr ($x2-$x1)*($x2-$x1) + ($y2-$y1)*($y2-$y1)] 
set d  [expr sqrt($d2)] ;#
Hipotenusa 
set ret [expr ($overlap + $d) / 2]

puts D2: $d2  D: $d   RET: $ret
return $ret
}


#
# Given overlaping area, calculate the desired coverage
# expects a QUARTER BOUNDING BOX for the cell, with the mobile in the 0,0
position (lower left corner)
#
proc HalfCellCoverage { x1 y1 x2 y2 overlap } {
return [expr [CellCoverage $x1 $y1 $x2 $y2 $overlap] * 2]
}



#
# Calculate Necessary Transmission Power Pt for given coverage
#
# See /mobile/tworayground.cc
#
proc SetPt { coverage } {
set Gt [Antenna/OmniAntenna set Gt_]
set Gr [Antenna/OmniAntenna set Gr_]
set ht [Antenna/OmniAntenna set Z_]
set hr [Antenna/OmniAntenna set Z_]
set RXThresh [Phy/WirelessPhy set RXThresh_]
set L [Phy/WirelessPhy set L_]
set Pt_ [Phy/WirelessPhy set Pt_]

set freq_ [Phy/WirelessPhy set freq_]
set lambda [expr 3 / $freq_]
set crossover_dist [expr (4 * 3.1415926535897 * $ht * $hr) / $lambda
];

puts old pt: $Pt_  RXThresh: $RXThresh  lambda: $lambda  \t\t
crosshover: $crossover_dist coverage: $coverage

if { [expr $coverage  $crossover_dist] } {
puts  Using Friis formula 

set M  [expr $lambda / (4.0 * 3.1415926535897 * $coverage)]
set Pt [expr $RXThresh * ($L / ($Gt*$Gr*$M*$M))]

puts   RET: $Pt
} else {
puts  Using TwoRay formula 

#Calculate input power necessary to have, at dist $coverage,
output power = $RXThresh
set d4 [expr pow($coverage,4)]
set Pt [expr $RXThresh * (($L*$d4) /
($Gt*$Gr*$ht*$ht*$hr*$hr))]

puts D4: $d4  RET: $Pt
}

#debug 1
return $Pt
}


#/*
# * Friis free space equation:
# *
# *   Pt * Gt * Gr * (lambda^2)
# *   P = --
# *   (4 * pi * d)^2 * L
# */

# from /mobile/tworayground.cc:
#
#  TwoRayGround formula
# power = Pt * Gt * Gr * (hr * hr * ht * ht) / (d * d * d * d * L);
#
#






 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Ashish Sangwan
 Sent: quinta-feira, 13 de Julho de 2006 14:59
 To: Q. R. Iqbal
 Cc: ns-users@ISI.EDU
 Subject: Re: [ns] Transmission and Interference Range
 
 
 Hi ,
 
 I didnot know about these three transmit power levels. Thanks Iqbal for
 that.
 I wanted to have Interference Range(Carrier Sense Range) to be twice the
 Communication Range. So I achieved by calculating CSThresh_ value by
 following formula
 Pt * Gt * Gr * (hr * hr * ht * ht) / {(Required interference range) ^ 4}
 
 --Ashish
 
 On 7/13/06, Q.R.Iqbal [EMAIL PROTECTED] wrote:
 
  Hi there
 
  I think there is no other cleaner or easiar way to do that unless you
  modify the code.
 
  One thing you have to be aware of is that by modifying the transmission
  range, you are only changing the receiver threshold, A  distance from
  which a receiver can receive.
 
  Again there are three different transmit power levels that are given for
  the wavelan Modem
 
  40m  8.5872e-4
  100m 7.214e-3
  250m 02818
 
  Maybe you need to use one of these parameters, the closest to your
  required transmission range and then calculate the RXthreshold values,
 to
  get a better result.
  Also you need to be aware of CSthreshold,. If you are limiting the
 node's
  transmission range to 40m or 100m  or any value, the CSthreshold value,
  will still be very large, about 550m by default, you might also want to
  tweak that parameter to see if  this improves your results
 
  I hope this helps
 
Hi,
  
   Can you tell me a clean way to change transmission and interference
  ranges
   in ns-2?
   I tried the threshold program given ~ns/indep-utils/propagation/ but
  that
   somehow is not giving correct values.
  
   Regards,
   --
   Ashish Sangwan
   B.Tech, Computer Science  Engineering
   IIT Delhi
  
   --
   I do know everything, just not all at once. It's a virtual memory
  problem.
  
 
 
  Kind regards
 
  Qasim Raza Iqbal
  PhD Candidate,
  ACNRG 

Re: [ns] Finding Node ID

2006-07-03 Thread Pedro Vale Estrela


http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html

Type of Addresses that a node can have in NS2 (hAddr, ID, iAddr, Handle)? 
In NS2, a node can be uniquely identified by several forms

the handle is the otcl name; it refers to an object of the form _oXXX,
and because of this, it is the only form can be used to directly call
internal instprocs and variables.
the haddr is the Hierarchical address, on the form X.Y.Z 
the iaddr is the INTEGER hierarchical address, where the haddr string is
simply ENCODED in a 32 bit integer.
the id is the sequential Node ID of the simulator.

...


In my ns2_shared_procs.tcl utils tcl file, I introduce procs for all
possible conversions of each form, using the procs handle2iaddr,
handle2haddr, handle2id, etc.
http://tagus.inesc-id.pt/~pestrela/ns2/files/ns2_shared_procs.tcl


Feel free to ask further questions if necessary
Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Nicholas Loulloudes
 Sent: segunda-feira, 3 de Julho de 2006 10:55
 To: ns-users@ISI.EDU
 Subject: [ns] Finding Node ID
 
 
 Hello,
 
 I am currently implementing a routing algorithm in NS2. I have utilized
 the
 command [$node neighbors] for discovering the neighbors of a specific
 node.
 
 This command returns a list with the following three elements (_o13, _o16,
 _019). Is is possible in TCL to retrieve dynamically the ID of each node
 using this elements in the list.
 
 For example:
 
 _o19 = n(1)
 _o13 = n (0)
 _o16 = n(2)
 
 Regards,
 
 
 --
 Nicholas Loulloudes
 
 Postgraduate at Communication Networks and Software.
 
 BSc in Computer Science.



Re: [ns] Multiple connections to a single agent

2006-07-03 Thread Pedro Vale Estrela

The problem is that the packets that you are sending to A3 have an incorrect
port address. 

When you use 
   $ns connect $a1 $a2
then automatically all normal control packets sent by a1 have the
destination port of a2;

as a1 is not connected to a3 in TCL, you must set the port by hand in C++,
as NS will not do this for you, eg:

void myAgent::recv(Packet* p, Handler *h)
{
hdr_ip*iph  = hdr_ip::access(p);
hdr_cmn   *ch   = hdr_cmn::access(p);

...

iph-saddr() = addr();  // (set my IP address)
iph-sport() = port();  // (set my source port)
iph-daddr() = nextHop_iaddr; // iaddr of n3
  iph-dport() = nextHop_iaddr; // port of a3

regarding the iaddr comment: check
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html

In my ns2_shared_procs.tcl utils tcl file, I introduce procs for all
possible conversions of each form, using the procs handle2iaddr,
handle2haddr, handle2id, etc.



you could also have debug this problem by:
- redefining the no-slot handler to invoke the run-time TCL
debugger;
  - use the mash inspector to find exactly who are _o153, _o158, etc
(http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html)

If this helps you, please contribute the description of the problem and the
solution, in your own words, to the NS2 wiki.

Pedro Vale Estrela



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Brad Montgomery
 Sent: segunda-feira, 3 de Julho de 2006 19:25
 To: ns-users@isi.edu
 Subject: Re: [ns] Multiple connections to a single agent
 
 
 I'm not sure I understand, and perhaps I've not adequately described what
 I'm trying to do, so I'll try again using a semi-hypothetical scenario:
 (Please keep in mind I'm new to ns!)
 
 Suppose I've got the following topology:
 
 N1 - N2 - N3
 
 And three different agents, (A1,A2,A3) which have all been implemented
 differently in C++.  The basic idea is that I want these agents to
 automatically communicate with each other...
 
 In C++ I've written an A1::command() function that will 'send' sends an IP
 packet to the A2 agent.  When the A2 agent receives this packet, it then
 sends a packet back to A1, which then gets returned to A2 (basically a 3-
 way
 handshake).  A2 should then automatically send another packet to the A3
 agent by creating a packet, and inserting N3's address in the IP header.
 (I'm assuming all of my agents and nodes know about the topology)
 
 In TCL I've done this:
 
 set n1 [$ns node]
 set n2 [$ns node]
 set n3 [$ns node]
 
 set a1 [new Agent/A1]
 set a2 [new Agent/A2]
 set a3 [new Agent/A3]
 
 $ns attach-agent $n1 $a1
 $ns attach-agent $n2 $a2
 $ns attach-agent $n3 $a3
 
 $ns connect $a1 $a2
 #$ns connect $a2 $a3 ;# if I do this, the handshake doesn't work
 
 $ns at 0.0 $a1 send
 
 
 When I run this, ns gives me this error:
 
 --- Classfier::no-slot{} default handler (tcl/lib/ns-lib.tcl) ---
 _o158: no target for slot 3
 _o158 type: Classifier/Port
 content dump:
 classifier _o158
 0 offset
 0 shift
 2147483647 mask
 1 slots
 slot 0: _o153 (Agent/A3)
 -- Finished standard no-slot{} default handler --
 
 
 Basically I want A3 to look at any or all packets send to N3.  How can I
 force this?
 
 I'm using ns-2.29 on Mac OS X 10.4.7.
 
 Thanks in advance!
 
 Brad
 
 
 On 7/2/06 6:10 PM, Mark Shifrin [EMAIL PROTECTED] wrote:
 
  no problem with tcp
  you can do attach agent as many time as you want to a single node.
  you must first define it as tcp-source. and then to choose the
 application
  which runs over this
  tcp, for example i did it with FTP. moreover you can do it for n, within
 a
  loop
 
  --- Brad Montgomery [EMAIL PROTECTED] wrote:
 
 
  Hello All,
 
  I'm wondering if it's possible to have a single Agent connected to 2 or
 more
  other Agents. I have a topology similar to this:
 
N2
|
  N0 -- N1 -- N3 -- N4
 
  I have an agents A0, A2, A3 connected to N0, N2, N3 respectively, and I
  would like A0 to send a packet to A2, which would then in turn send a
 packet
  to A3.  Is this possible?
 
  From reading the mailing list archives, it seems like this may not be
  possible, so my second question would be this:
 
  Is it possible to attach an agent to a Node, and force that agent's
 recv
  function to get executed for every packet that passes through that
 node?
  For example: Could N2 send a packet to N4, so that A3's recv function
  processes that packet before sending it onward.
 
  Any help is GREATLY appreciated!
 
  Brad
 
 
 
 
  enjoy the life -
  Mark
 
  __
  Do You Yahoo!?
  Tired of spam?  Yahoo! Mail has the best spam protection around
  http://mail.yahoo.com




Re: [ns] Help on obtaining the location info of a mobile node within inC++ code of routing protocol

2006-07-03 Thread Pedro Vale Estrela


http://mailman.isi.edu/pipermail/ns-users/2006-January/053450.html
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_tips.html#_Toc124667331
http://www.cse.msu.edu/~wangbo1/ns2/nshowto5.html


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Xiaolin Cheng
 Sent: domingo, 2 de Julho de 2006 8:07
 To: ns-users@ISI.EDU; ns-users@ISI.EDU
 Subject: [ns] Help on obtaining the location info of a mobile node within
 inC++ code of routing protocol
 
 
 Dear all,
 
 I am working on an extension to AODV. I need the location information (x,
 y,
 z) of current node to which AODV routing protocol is attached. However,
 the
 location information is set in tcl script. How can I obtain this
 information
 in C++ code of AODV's implementation? Can I get it from some packet
 header?
 
 Thanks much for yoru attention and help.
 Xiaolin



Re: [ns] Multiple connections to a single agent

2006-07-03 Thread Pedro Vale Estrela



Wiki Information:
http://en.wikipedia.org/wiki/Wiki
http://en.wikipedia.org/wiki/Wikipedia:Introduction




 -Original Message-
 From: Brad Montgomery [mailto:[EMAIL PROTECTED]
 Sent: segunda-feira, 3 de Julho de 2006 23:14
 To: [EMAIL PROTECTED]
 Subject: Re: [ns] Multiple connections to a single agent
 
 Thank You!
 I'll be sure to post my description on the Wiki site...
 By the way, are there any guidelines for posting to the Wiki?

AFAIK Not yet; the point is the users starting introduce useful
informations, to create a better distributed documentation




 
 Brad
 
 
 On 7/3/06 2:07 PM, Pedro Vale Estrela [EMAIL PROTECTED] wrote:
 
  The problem is that the packets that you are sending to A3 have an
 incorrect
  port address.
 
  When you use
 $ns connect $a1 $a2
  then automatically all normal control packets sent by a1 have the
  destination port of a2;
 
  as a1 is not connected to a3 in TCL, you must set the port by hand in
 C++,
  as NS will not do this for you, eg:
 
  void myAgent::recv(Packet* p, Handler *h)
  {
  hdr_ip*iph = hdr_ip::access(p);
  hdr_cmn   *ch  = hdr_cmn::access(p);
 
  ...
 
  iph-saddr() = addr();  // (set my IP address)
  iph-sport() = port();  // (set my source port)
  iph-daddr() = nextHop_iaddr; // iaddr of n3
   iph-dport() = nextHop_iaddr; // port of a3
 
  regarding the iaddr comment: check
  http://tagus.inesc-id.pt/~pestrela/ns2/ns2_haddr_tips.html
 
  In my ns2_shared_procs.tcl utils tcl file, I introduce procs for all
  possible conversions of each form, using the procs handle2iaddr,
  handle2haddr, handle2id, etc.
 
 
  
  you could also have debug this problem by:
  - redefining the no-slot handler to invoke the run-time TCL
  debugger;
- use the mash inspector to find exactly who are _o153, _o158, etc
  (http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html)
 
  If this helps you, please contribute the description of the problem and
 the
  solution, in your own words, to the NS2 wiki.
 
  Pedro Vale Estrela
 
 
 
  -Original Message-
  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
 Behalf
  Of Brad Montgomery
  Sent: segunda-feira, 3 de Julho de 2006 19:25
  To: ns-users@isi.edu
  Subject: Re: [ns] Multiple connections to a single agent
 
 
  I'm not sure I understand, and perhaps I've not adequately described
 what
  I'm trying to do, so I'll try again using a semi-hypothetical scenario:
  (Please keep in mind I'm new to ns!)
 
  Suppose I've got the following topology:
 
  N1 - N2 - N3
 
  And three different agents, (A1,A2,A3) which have all been
 implemented
  differently in C++.  The basic idea is that I want these agents to
  automatically communicate with each other...
 
  In C++ I've written an A1::command() function that will 'send' sends an
 IP
  packet to the A2 agent.  When the A2 agent receives this packet, it
 then
  sends a packet back to A1, which then gets returned to A2 (basically a
 3-
  way
  handshake).  A2 should then automatically send another packet to the A3
  agent by creating a packet, and inserting N3's address in the IP
 header.
  (I'm assuming all of my agents and nodes know about the topology)
 
  In TCL I've done this:
  
  set n1 [$ns node]
  set n2 [$ns node]
  set n3 [$ns node]
 
  set a1 [new Agent/A1]
  set a2 [new Agent/A2]
  set a3 [new Agent/A3]
 
  $ns attach-agent $n1 $a1
  $ns attach-agent $n2 $a2
  $ns attach-agent $n3 $a3
 
  $ns connect $a1 $a2
  #$ns connect $a2 $a3 ;# if I do this, the handshake doesn't work
 
  $ns at 0.0 $a1 send
  
 
  When I run this, ns gives me this error:
 
  --- Classfier::no-slot{} default handler (tcl/lib/ns-lib.tcl) ---
  _o158: no target for slot 3
  _o158 type: Classifier/Port
  content dump:
  classifier _o158
  0 offset
  0 shift
  2147483647 mask
  1 slots
  slot 0: _o153 (Agent/A3)
  -- Finished standard no-slot{} default handler --
 
 
  Basically I want A3 to look at any or all packets send to N3.  How can
 I
  force this?
 
  I'm using ns-2.29 on Mac OS X 10.4.7.
 
  Thanks in advance!
 
  Brad
 
 
  On 7/2/06 6:10 PM, Mark Shifrin [EMAIL PROTECTED] wrote:
 
  no problem with tcp
  you can do attach agent as many time as you want to a single node.
  you must first define it as tcp-source. and then to choose the
  application
  which runs over this
  tcp, for example i did it with FTP. moreover you can do it for n,
 within
  a
  loop
 
  --- Brad Montgomery [EMAIL PROTECTED] wrote:
 
 
  Hello All,
 
  I'm wondering if it's possible to have a single Agent connected to 2
 or
  more
  other Agents. I have a topology similar to this:
 
N2
|
  N0 -- N1 -- N3 -- N4
 
  I have an agents A0, A2, A3 connected to N0, N2, N3 respectively, and
 I
  would like A0 to send a packet to A2, which would then in turn send a
  packet
  to A3.  Is this possible?
 
  From

Re: [ns] [help] error: input line too long

2006-06-22 Thread Pedro Vale Estrela


This seems to be a Makefile problem that manifests itself in windows 
(and which in linux would compile fine)

I such is the case, i suggest you make your working NS2 tree in c:\ns2,
instead of something like
C:\documentes and settigs\user\my documents\etc etc etc\ns2


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of balraj karthikeyan
 Sent: quinta-feira, 22 de Junho de 2006 5:53
 To: ns-users@ISI.EDU
 Subject: [ns] [help] error: input line too long
 
 
 Hi ns users
   I got a code for watchdog and pathrater protocol
 I am trying to validate it.
 I rectified numerous errors and finally I am getting a single error as
 follows
 
 The input line is too long.
 make.exe: *** [Watchdog.exe] Error 255
 Execution terminated
 
 
 help me to debug the above errorits urgent
 thanks in advance
 
 
 cheers,
 Cartic



Re: [ns] Bus error

2006-06-21 Thread Pedro Vale Estrela


This looks to be equivalent to a segmentation fault

Run NS2 inside a debugger like DDD to debug it


 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Brad Montgomery
 Sent: quarta-feira, 21 de Junho de 2006 23:46
 To: ns-users@ISI.EDU
 Subject: [ns] Bus error
 
 
 Hello ns-users,
 
 I'm new to ns, and I'm using ns-allinone-2.29.
 I've recently created an Agent that is very similar to Ping agent included
 in the source.  However, when I set up and run a simulation, I get this:
 
 Bus error
 
 The first 3 lines of my simulation look like this:
 
 set ns [new Simulator]
 set tracefile [open test1.tr w]
 set namfile [open test1.nam w]
 
 However, both files are empty after running the simulation.  I've searched
 the manual, and I've grepped my entire ns directory for 'Bus error' to no
 avail!
 
 Any info on this message is GREATLY appreaciated.
 
 Thanks,
 
 Brad




Re: [ns] Getting data from wireless base station to cross to wiredstation FIXED

2006-06-20 Thread Pedro Vale Estrela


Congratulations Paul! 

I believe that after fixing your first major bug, your next NS2 hacking
experiences will be done a lot faster.

One very important helper for beating the NS2 learning curve is to study the
other NS2 success stories, to try to grasp all the details and lessons
learnt. These could be right the thing that one will need either tomorrow...
or in a year's time.

Now that you have the protocol working, you might want to combine and
parametize the test script so that it is able to run both protocols in the
exact same scenarios.



 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Paul Vincent Craven

 A while back I asked about getting data to move from my wireless base
 station node to my wired node. I finally figured out the issue. Key to
 getting this to work was:
 
 1.) Telling my node that is wired to the base station that such a
 route exists:
 $W(0) add-route $BS(0) $W(0)

This is very strange. The fixed routing protocol should have done it for
you, on the fixed part of the network.

Try other fixed routing protocols without your fix, to check what's
happening: 

# http://www.isi.edu/nsnam/ns/doc/node304.html
# types of protocols: Algorithmic / Direct / Dummy / DV / LS / Manual
# Session / Static

In this process you may find that the bug was your's, which is strange
because your hierarchal addresses are OK, eg:

  0.0.0   (W(0))
wired link 
  1.0.0   (BS)
wireless link
  1.0.1   (MH)

your you might find a bug on the NS2 (step 7 of
http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging3.html)
 

 2.) And in my forward_data() member of my custom routing protocol, I
 needed to pick the right target:
 Scheduler::instance().schedule(p-handler_, p, 0.0);
 
 Key in this was not to use target_ with just went back to my handler I
 was already in, but instead reset back to use the packet's original
 handler.

I've compared your code to DSDV's and NOAH's, and I can't understand why you
couldn't use the same method:

NOAH_Agent::forwardPacket (Packet * p)
...
target_-recv(p, (Handler *)0); //line 985
...


DSDV_Agent::forwardPacket (Packet * p)
...
target_-recv(p, (Handler *)0); //line 168
...

 
 Particular thanks to Pedro Vale Estrela, who's help was invaluable.
 
 Paul Vincent Craven




Re: [ns] simple-wireless.tcl is not running on ns2.28

2006-06-14 Thread Pedro Vale Estrela


Search for the /mobility/scene direcotories in your NS2 tree, and put the
example alosnside it, eg:

Snenario files in /ns2/tcl/ex/mobility/scene
Put the script in /ns2/tcl/ex/mydir/

Pedro Vale Estrela

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
 Of Srirupa Dasgupta
 Sent: quarta-feira, 14 de Junho de 2006 8:23
 To: ns-users@ISI.EDU
 Subject: [ns] simple-wireless.tcl is not running on ns2.28
 
 
 
 
 
 Dear friend,
 please help me to run wireless scripts on ns2 .
 i am typing the following command:
 ns simple-wireless.tcl
 the error messafe that i am getting is as follows:
 num_nodes is set 3
 warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl
 INITIALIZE THE LIST xListHead
 Loading connection pattern...
 couldn't read file ../mobility/scene/cbr-3-test: no such file or
 directory
 while executing
 source.orig ../mobility/scene/cbr-3-test
 (uplevel body line 1)
 invoked from within
 uplevel source.orig [list $fileName]
 invoked from within
 if [$instance_ is_http_url $fileName] {
 set buffer [$instance_ read_url $fileName]
 uplevel eval $buffer
 } else {
 uplevel source.orig [list $fileName]
 ...
 (procedure source line 8)
 invoked from within
 source $val(cp)
 (file wireless1.tcl line 121)
 what is this?
 please help



Re: [ns] Clearing a queue at a node in ns-2

2006-06-14 Thread Pedro Vale Estrela



 But this doesn't work.  Uptarget_ gives me an NsObject instead of a LL
 object...
try casting it to an c++ LL object. Mind that this will only be a quick fix
to see if it works - its terrible programming !


Pedro Vale Estrela





 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
 Sent: sexta-feira, 9 de Junho de 2006 23:33
 To: Pedro Vale Estrela
 Cc: ns-users@ISI.EDU
 Subject: RE: [ns] Clearing a queue at a node in ns-2
 
 Whoah, that is too complicated for me.   I don't know ns-2 very well.
 What do you mean by:
 make a pointer to the ITF -- doesn't it have a pointer (uptarget_)?
 According to the diagram on pg 145 I should do uptarget_ -downtarget_-
 reset()
 since
 uptarget will take me to the LL, downtarget will take me to the IFq, and
 reset will reset the queue for that node.
 
 But this doesn't work.  Uptarget_ gives me an NsObject instead of a LL
 object...
 
 
 
 On Fri, 9 Jun 2006, Pedro Vale Estrela wrote:
 
 
  Yes,
 
  http://www.isi.edu/nsnam/ns/doc/ns_doc.pdf
  pag 145,
 
  - at your C++ MAC module, make a pointer to the ITF;
  - either search the C++ NODE methods for getting the pointer
  reference you need (you want the reverse of the downtarget_ on the ITF;
 for
  making this, search the code that sets the downtarget_ variable in C++
 in
  the ITF; (tip: use DDD, put a breakpoint somewhere in mobilenode.cc)
  in that moment, set something like:
   downtarget_-my_ITF_ = this;
 
  - then at the appropriate time, call reset() of it.
 my_ITF-reset();
 
  Of course that this is not good C++ Object-Orientation practices, but
 use it
  to simply try your ideia; if it works nice, then make the same thing
 with
  provte variables and public set/get methods.
 
 
  You can also perform the same trick by:
Calling TCL / searching the ITF object you want based on the current
 MAC
  object / call reset of it. The benefit is that you can fine tune this
 method
  without recompiling NS2 each time.
 
 
  If this works, please put this on the NS2 WIKI!
  Pedro Vale Estrela
 
 
  Hi ns,
 
  I'd like to clear a node's queue from the mac-layer in my simulation
 after
  I've received a certain packet.  Can I call a PacketQueue function like
  reset() from the mac layer?  If not, how would I clear the queue?
 
  Thanks!
 
  Kathy
 
 
 
 
 
 
 




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