[ns] em() in wireless-phy.cc
Hi! I´ve been long reading the code. In wireless-phy.cc file the method em() is called several times. I would like to know where is this method defined. Thanks! ITxaso - Itxaso Pérez Muruaga Dpto. Técnico cbt / Ingeniería de Comunicación Carretera Asúa, 6 48930 Getxo - Vizcaya Tel.: +34 94 480 51 83 Fax: +34 94 480 51 84 http://www.cbt.es/ www.cbt.es http://www.innovalia.com/ www.innovalia.com - QATEST 2006 18-19-20th October 2006 in Bilbao (Spain) We would like to encourage you to participate in the fifth edition of the International Conference on Embedded Software Testing. For further details, please visit: http://www.qatest.org/ http://www.qatest.org
[ns] What does AGT in trace file indicate?
Hello all... Just I woulk like to ask what does the AGT in the output trace file indicate? or where is in the OSI model (i.e. in which layer)? Thanks in advance Yazeed Yazeed Ahamd Al-Sbou Sheffield Hallam University Sheiffield, UK _ Download your favorite football Wallpapers, Screensavers, fantastic Video Clips for your favorite team players and games. http://www.maktoob.com/football
[ns] cygwin and NS2:please its urgent
hi cygwin is already installed on my computer, i installed it again for update cygwin under my window login. i kept all the default setting. at the end of installation when it complete 99%, it stop to further process and continue to shoe the status as Running... No Package /ect/postinstall/cygwin-doc.sh i waited for almost half an hour, but after that i canceled installation. it show my a dialogue box Installation complete. i run cygwin bash shell, it work properly but it did not created my directory in /home folder. i also checked passwd file in /etc/ it does not have entry for my login. please tell me how to create my home directory... i tried following... i create a directory in /home as my login id. to enter it into passwd file in /etc i gave mkpasswd -l /etc/passwd following command. it enter my login name into passwd file. then i make .ssh folder by ssh-user-config . but when i issue ./install it start installation but it gave some error(display very quickly that i cant follow it) and i dont get ns.exe file please guide me thank you very much. regard - Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ countries) for 2¢/min or less.
Re: [ns] em() in wireless-phy.cc
Hi ITxaso...
This funciton is defined in the wireless-phy header file...
// Convenience method
EnergyModel* em() { return node()-energy_model(); }
Thanks
Matt
On Tue, 2006-06-27 at 12:06 +0200, Itxaso Pérez wrote:
Hi!
I´ve been long reading the code. In wireless-phy.cc file the method “em()”
is called several times. I would like to know where is this method defined.
Thanks!
ITxaso
-
Itxaso Pérez Muruaga
Dpto. Técnico
cbt / Ingeniería de Comunicación
Carretera Asúa, 6
48930 Getxo - Vizcaya
Tel.: +34 94 480 51 83
Fax: +34 94 480 51 84
http://www.cbt.es/ www.cbt.es
http://www.innovalia.com/ www.innovalia.com
-
QATEST 2006
18-19-20th October 2006 in Bilbao (Spain)
We would like to encourage you to participate in the fifth edition of the
International Conference on Embedded Software Testing.
For further details, please visit: http://www.qatest.org/
http://www.qatest.org
Re: [ns] TCP and packet drop: where are the retransmitted packets?
From what I've observed, the normal TCP agents don't actually reliable send each packet in the stream, they only simulate the flow and congestion control dynamics that TCP would exhibit, so that the amount of generated traffic is accurate. Give the FullTCP agents a try. Phil On 6/27/06, Arne Lie [EMAIL PROTECTED] wrote: Hi all, For some time I have only been interested in the congestion response of the different TCP congestion control algorithms, and the way it balances flow throughput to available capacity, packet drop statistics, etc. However, now I need to see how well TCP tackles retransmissions, e.g. with SACK. When I inspect the event trace file, dropped packets are never retransmitted, in that ns-2 seems to increment the sequence numbers (both per flow and per simulation) all the time, making it impossible to know WHEN a retransmission is performed. Is this a correct observation? If yes, are there any workarounds? If incorrect, how *do* I find the retransmission event, and e.g. how *many* packets are duplicated/retransmitted (SACK vs. non-SACK)? best regards Arne
[ns] Floating point exception
Hi, I'm writing a new routing protocol for mobile ad hoc networks. This new protocol works properly when I tested on small networks ( 10 nodes). But the simulations stoped when I run on large networks (120 nodes) with the error floating point exception. What can be a cause of this error? Note that I'm using ns-2.28 on RedHat 9. Regards, Takuya - Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1cent;/min.
Re: [ns] TCP and packet drop: where are the retransmitted packets?
Ethan, Thanks, I will have a look and see if full TCP header is possible; however, I need only a unique sequence number series. Arne -Opprinnelig melding- Fra: Ethan Giordano [mailto:[EMAIL PROTECTED] Sendt: 27. juni 2006 12:49 Til: Arne Lie Emne: Re: [ns] TCP and packet drop: where are the retransmitted packets? There are two different sequence numbers...the TCP sequence number and the internal unique id for each packet. I think you have to turn on tcp header output for the trace to see the tcp sequence number. ~Ethan Arne Lie wrote: Hi all, For some time I have only been interested in the congestion response of the different TCP congestion control algorithms, and the way it balances flow throughput to available capacity, packet drop statistics, etc. However, now I need to see how well TCP tackles retransmissions, e.g. with SACK. When I inspect the event trace file, dropped packets are never retransmitted, in that ns-2 seems to increment the sequence numbers (both per flow and per simulation) all the time, making it impossible to know WHEN a retransmission is performed. Is this a correct observation? If yes, are there any workarounds? If incorrect, how *do* I find the retransmission event, and e.g. how *many* packets are duplicated/retransmitted (SACK vs. non-SACK)? best regards Arne
Re: [ns] TCP and packet drop: where are the retransmitted packets?
Phil, Thanks, I will try the FullTCP and see if that helps. But, what kind of TCP CC algorithm is FullTCP using; can I choose between different versions? Arne -Opprinnelig melding- Fra: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] På vegne av Phil Miller Sendt: 27. juni 2006 14:30 Til: Arne Lie Kopi: ns-users@isi.edu Emne: Re: [ns] TCP and packet drop: where are the retransmitted packets? From what I've observed, the normal TCP agents don't actually reliable send each packet in the stream, they only simulate the flow and congestion control dynamics that TCP would exhibit, so that the amount of generated traffic is accurate. Give the FullTCP agents a try. Phil On 6/27/06, Arne Lie [EMAIL PROTECTED] wrote: Hi all, For some time I have only been interested in the congestion response of the different TCP congestion control algorithms, and the way it balances flow throughput to available capacity, packet drop statistics, etc. However, now I need to see how well TCP tackles retransmissions, e.g. with SACK. When I inspect the event trace file, dropped packets are never retransmitted, in that ns-2 seems to increment the sequence numbers (both per flow and per simulation) all the time, making it impossible to know WHEN a retransmission is performed. Is this a correct observation? If yes, are there any workarounds? If incorrect, how *do* I find the retransmission event, and e.g. how *many* packets are duplicated/retransmitted (SACK vs. non-SACK)? best regards Arne
Re: [ns] What does AGT in trace file indicate?
it indicates agent level. For example the trace file that is the output of a wireless scenario using AODV routing protocol. The agent level represents the layer that implements AODV routing protocol. Hello all... Just I woulk like to ask what does the AGT in the output trace file indicate? or where is in the OSI model (i.e. in which layer)? Thanks in advance Yazeed Yazeed Ahamd Al-Sbou Sheffield Hallam University Sheiffield, UK _ Download your favorite football Wallpapers, Screensavers, fantastic Video Clips for your favorite team players and games. http://www.maktoob.com/football
Re: [ns] Floating point exception
Takuya, Well it sounds very much like a floating point exception is being thrown somewhere in your code. Try finding where and fixing the code. hint gdb is a pretty good debugger with some fairly good GUI's available for it if you're that way inclined! /hint Matt On Tuesday 27 June 2006 13:35, Takuya Kimura wrote: Hi, I'm writing a new routing protocol for mobile ad hoc networks. This new protocol works properly when I tested on small networks ( 10 nodes). But the simulations stoped when I run on large networks (120 nodes) with the error floating point exception. What can be a cause of this error? Note that I'm using ns-2.28 on RedHat 9. Regards, Takuya - Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1cent;/min.
[ns] Get values from queue to process them in agent.
Hi guys. I sent a message, but nobody has responded to me. Here we go again. If it is possible in ns to get the values from any queue periodically (for example, the average queue for red ) and then passing those values to one agent (UDP). Al this in C++? This in order to know the available space in the link before to establish any connection. I hope the problem be exposed clearly. Thanks in advance. -- Armando Garcia B. INT-RST 5 Rue Charles Fourier 91011 EVRY Cedex Tel: 01 60 76 68 56
[ns] event such packet reception
Hello world! I'm implementing an optical network with ONUs working in reflective mode. This means that they only can transmitt their upstream data when receive the carrier upstream light from the OLT. My question about the ns2 simulator is: -Exists a way to know when a node receives a packet from a transmitter or another node?? Surelly yes, but I haven't find the answer. I wait for a divine answer! Thanks a lot!
[ns] ERRATUM !!!Help me please script gprs!!!!
--- indra tyas [EMAIL PROTECTED] wrote: Date: Tue, 27 Jun 2006 08:26:13 -0700 (PDT) From: indra tyas [EMAIL PROTECTED] Subject: Help me please script gprs To: ns-users@ISI.EDU --- indra tyas [EMAIL PROTECTED] wrote: Hello all! I have some problem with GPRS extensions (gprs-072501- 2.1b7a.tar) to ns2 (ns-2.1b9a) I installed NS-2 successfully.. but I can't run the GPRS's example script in thesis richa jain: When i tried to run it gave an error : invalid comand name Mac/Gprs while executing mac/Gprs set gprs_slots_per_frame 7 (file example.tcl line 19) Can you please help me ? Thanks , Indra __ __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
[ns] what's wrong with nam?
Hi guys, After the installation,I run a simple script exampe1a.tcl which is contained in ns-tutorial.However,the command window displays the followings: ns: finish:couldn't excute nam:no such file or directory while excuting exec nam out.nam (procedure finish line 7) invoked from within finish Where does the problem lie? Thanks in advance!
[ns] Reg: promiscuous mode and DSR
jaya y [EMAIL PROTECTED] wrote: Hi all, We are using ns2.28 on Fedora core 3. It is working fine. I have few questions regarding MAC layer option Promiscuous mode and DSR. 1. How to make promiscuous mode off through tcl script. 2. We have set dsragent_use_tap=false in dsragent.cc and observed tap: on in trace file. Is this means even if you off tap at layer3 it does't actually off promiscuous mode at layer2, if so how to do it? 3. Is there anything like , Agent/DSR set promisc_ off or Agent/TAP set promisc_off I am in a urgent need for this in our project, so please help.Thanks for ur cooperation in advance. Y. Jaya Lakshmi - Yahoo! Music Unlimited - Access over 1 million songs. Try it free. - Yahoo! Music Unlimited - Access over 1 million songs.Try it free.
