[ns] Development of a new protocol, Pb with Trace::format
Dear NS users, I have implemented a new protocol by extending the implementation of RSVP-TE by Callegari, Vitucci. I am now migrating all my changes in a new agent called RSVP_new. I have done the modifications explained in the various documentation available on the web, but I am still facing an error at runtime: Program received signal SIGSEGV, Segmentation fault. 0x080588ba in Trace::format () (gdb) (gdb) bt #0 0x080588ba in Trace::format () #1 0x08058c87 in Trace::recv () #2 0x080578ed in Connector::recv () #3 0x0805a0d8 in Classifier::recv () #4 0x08161ec8 in RSVP_newAgent::send_path_message () #5 0x0815e4fd in RSVP_newAgent::new_psb () #6 0x0815b320 in RSVP_newAgent::command () #7 0x081ade4f in TclClass::dispatch_cmd () #8 0x081b1878 in OTclDispatch (cd=0x8746a80, in=0x83f96a0, argc=13, argv=0xbfdf0a28) at otcl.c:420 #9 0x081b6459 in TclInvokeStringCommand () #10 0x081d1a74 in TclExecuteByteCode () I think this comes from my definition of the packets for tracing, but I dont find my error. Could someone please remind me of the necessary changes for defining a new packet type for tracing? Thanks a lot for your help. -- Mit freundlichen Grüßen, with kind regards, cordialement, -- Gilles BERTRAND Telecom INT - University of Stuttgart --
[ns] Cross-Layer Issues
If there are three mobile nodes A B C, node A sends a packet to node C relayed by node B, and node A wants to monitor whether node B relayed the packet for him or not. Moreover, the result of monitoring is used by routing layer (boolsr), now the question is how the mac_802.11 layer can send the monitored packet to the routing layer and the routing layer can identify the packet is destined for the other node. Or 802.11 mac layer deals with the monitored packet and send the result to the routing layer instead of the packet. But I faced another question how the mac layer can find out the pointer of the corresponding routing layer agent in ns2 so that the mac layer can write the monitored result to the routing layer. thanks! -- Zhiming Zhang 2006-06-13
[ns] installation of ns-allinone-2.1b9a
hello, I want to install ns-allinone-2.1b9a on cygwin according to http://www.isi.edu/nsnam/ns/ns-cygwin-old.html but according to it, ns-allinone-2.1b9a must use gcc-3.2. But now the cygwin only offer the gcc-3.3 above, then how can I install ns-allinone-2.1b9a??? I used gcc-3.4, the problem while installation is that: can't find x library. I wonder if this problem is caused from the use of gcc-3.4? or else? thx!
[ns] R: Autorate in 802.11G
However this modification is not working, I see that everytime the dataRate is at 54Mbps, including if I comment every line that define the dataRate, including the lines tcl.evalf(Mac/802_11 set dataRate_); if (strcmp(tcl.result(), 0) != 0) bind_bw(dataRate_, dataRate_); This is strange: are you sure you recompiled ns after changing the files? Marco Messaggio originale Da: [EMAIL PROTECTED] Data: 13-giu-2006 12.52 AM A: ns-users@ISI.EDU Ogg: [ns] Autorate in 802.11G Hello. I´m working on 802.11g in ns-2.28. I need to make automatic change in dataRate depending in distance between tow nodes. I tried to make some changes on the on the mac-802_11.h and in the mac-802_11. cc but they did not worked for me. I make some other changes in ns- default.tcl and ns-mac.tcl for make that the 802.11g standard work in ns-2.28, this changes were succesful. In order to make the automatic change in dataRate I tried to make some changes in mac- 802_11.cc: Packet *p = Packet::alloc(); struct hdr_cmn *ch = HDR_CMN(p); struct hdr_mac802_11 *dh = HDR_MAC802_11(p); struct hdr_arp *ah = HDR_ARP(p); double tX_,tY_,tZ_,rX_,rY_,rZ_; nsaddr_t txid=index_; nsaddr_t rxid; MobileNode *tx_node= (MobileNode*)(Node:: get_node_by_address(txid)); tx_node-getLoc(tX_,tY_,tZ_); ch-tX()=tX_; ch-tY()=tY_; ch-tZ()=tZ_; if (strcmp(packet_info.name(ch-ptype()), ARP) == 0) rxid=ah-arp_tpa; else rxid=ETHER_ADDR(dh-dh_ra); MobileNode *rx_node= (MobileNode*)(Node:: get_node_by_address(rxid)); rx_node-getLoc(rX_,rY_,rZ_); dist = sqrt((rX_ - tX_) * (rX_ - tX_) + (rY_ - tY_) * (rY_ - tY_) + (rZ_ - tZ_) * (rZ_ - tZ_)); // End of modification Tcl tcl = Tcl::instance(); tcl.evalf(Mac/802_11 set basicRate_); if (strcmp(tcl.result(), 0) != 0) bind_bw(basicRate_, basicRate_); else basicRate_ = bandwidth_; tcl.evalf(Mac/802_11 set dataRate_); if (strcmp(tcl.result(), 0) != 0) bind_bw (dataRate_, dataRate_); //Modification to obtain dataRate VS distance by Jonathan Lopez else if (dist=100 dist77) dataRate_ = 1*1e6; else if (dist=77 dist65) dataRate_ = 2*1e6; else if (dist=65 dist57) dataRate_ = 6*1e6; else if (dist=57 dist54) dataRate_ = 9*1e6; else if (dist=54 dist50) dataRate_ = 12*1e6; else if (dist=50 dist42) dataRate_ = 18*1e6; else if (dist=42 dist35) dataRate_ = 24*1e6; else if (dist=35 dist23) dataRate_ = 36*1e6; else if (dist=23 dist19) dataRate_ = 48*1e6; else dataRate_ = bandwidth_; // End of modification EOTtarget_ = 0; bss_id_ = IBSS_ID; //printf(bssid in constructor %d\n, bss_id_); } Here I just tried to change dataRate depending the distance between the nodes, for make the change for every packet that is send. However this modification is not working, I see that every time the dataRate is at 54Mbps, including if I comment every line that define the dataRate, including the lines tcl.evalf(Mac/802_11 set dataRate_); if (strcmp(tcl.result(), 0) != 0) bind_bw(dataRate_, dataRate_); I can modify the dataRate with Mac/802_11 set dataRate_ xMb in my tcl script. But I need that the dataRate been modified for every packet that is send denpending in the distance. Can anyone tell me what is happend or how can I do the modifications that I need?. Thanks. __ Correo Yahoo! Espacio para todos tus mensajes, antivirus y antispam ¡gratis! Regístrate ya - http://correo.yahoo.com.mx/
[ns] run flooding with SMAC
Dear All,
Can someone help please?
I simulated the simulation script of flooding with SAMC.The
first test script is flooding1.tcl. But while running ns2.29 , I get the
following message :
[EMAIL PROTECTED] ~/ns-allinone-2.29/ns-2.29/tcl/ex
$ ns flooding1.tcl
num_nodes is set 30
warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl
INITIALIZE THE LIST xListHead
Loading topology file...
Load complete...
*** NOTE: no node-on-off file specified.
Loading traffic file...
Starting Simulation...
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 550.0
SORTING LISTS ...DONE!
Cancelling CS- node 19
Cancelling CS- node 26
Cancelling CS- node 19
.
Cancelling CS- node 12
Cancelling CS- node 24
Cancelling CS- node 7
Couldn't schedule timer
So I changed flooding1.tcl .I get flooding2.tcl. But while
running ns2.29 , I get the following message :
[EMAIL PROTECTED] ~/ns-allinone-2.29/ns-2.29/tcl/ex
$ ns flooding2.tcl
num_nodes is set 30
warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl
invalid command name -initialEnergy
while executing
-initialEnergy $opt(initeng)
(file flooding2.tcl line 215)
What does it mean?I can not find any error.But It cannot run correctly. I
need your help.
I would really appreciate any help that I am to get. Thanks very
much.
Yours truly,
litingyi
__
赶快注册雅虎超大容量免费邮箱?
http://cn.mail.yahoo.com# ==
# Define options
# ==
set opt(chan) Channel/WirelessChannel
set opt(prop) Propagation/TwoRayGround
set opt(netif) Phy/WirelessPhy
set opt(mac)Mac/SMAC
set opt(ifq)Queue/DropTail/PriQueue
set opt(ll) LL
set opt(ant)Antenna/OmniAntenna
set opt(god)off
set opt(x) 800 ;# X dimension of the topography
set opt(y) 800 ;# Y dimension of the topography
set opt(traf) ../test/sk-30-3-3-1-1-6-64.tcl ;# traffic file
set opt(topo) ../test/scen-800x800-30-500-1.0-1 ;# topology
file
set opt(onoff);#node on-off
set opt(ifqlen) 50 ;# max packet in ifq
set opt(nn) 30 ;# number of nodes
set opt(seed) 0.0
set opt(stop) 20 ;# simulation time
set opt(prestop)19 ;# time to prepare to stop
set opt(tr) wireless.tr ;# trace file
set opt(nam)wireless.nam ;# nam file
set opt(engmodel) EnergyModel ;
set opt(txPower)0.660;
set opt(rxPower)0.395;
set opt(idlePower) 0.035;
set opt(initeng)1.0 ;# Initial energy in Joules
set opt(logeng) off ;# log energy every 1 seconds
set opt(lm) off ;# log movement
set opt(adhocRouting) FLOODING
set opt(duplicate) enable-duplicate
# ==
LL set mindelay_50us
LL set delay_ 25us
LL set bandwidth_ 0 ;# not used
Queue/DropTail/PriQueue set Prefer_Routing_Protocols1
# unity gain, omni-directional antennas
# set up the antennas to be centered in the node and 1.5 meters above it
Antenna/OmniAntenna set X_ 0
Antenna/OmniAntenna set Y_ 0
Antenna/OmniAntenna set Z_ 1.5
Antenna/OmniAntenna set Gt_ 1.0
Antenna/OmniAntenna set Gr_ 1.0
# Initialize the SharedMedia interface with parameters to make
# it work like the 914MHz Lucent WaveLAN DSSS radio interface
Phy/WirelessPhy set CPThresh_ 10.0
Phy/WirelessPhy set CSThresh_ 1.559e-11
Phy/WirelessPhy set RXThresh_ 3.652e-10
Phy/WirelessPhy set Rb_ 2*1e6
Phy/WirelessPhy set Pt_ 0.2818
Phy/WirelessPhy set freq_ 914e+6
Phy/WirelessPhy set L_ 1.0
# ==
proc usage { argv0 } {
puts Usage: $argv0
puts \t\t\[-topo topology file\] \[-traf traffic file\]
puts \t\t\[-x max x\] \[-y max y\] \[-seed seed\]
puts \t\t\[-nam nam file\] \[-tr trace file\] \[-logeng on or off\]
puts \t\t\[-stop time to stop\] \[-prestop time to prepare to stop\]
puts \t\t\[-initeng initial energy\] \[-engmodel energy model\]
puts \t\t\[-chan channel model\] \[-prop propagation model\]
puts \t\t\[-netif network interface\] \[-mac mac layer\]
puts \t\t\[-ifq interface queue\] \[-ll link layer\] \[-ant antena\]
puts \t\t\[-ifqlen interface queue length\] \[-nn number of nodes\]
}
proc getopt {argc argv} {
global opt
lappend optlist cp nn seed sc stop tr x y
for {set i 0} {$i $argc} {incr i} {
set arg [lindex
[ns] run flooding with SMAC
Dear All,
Can someone help please?
I simulated the simulation script of flooding with SAMC.The
first test script is flooding1.tcl. But while running ns2.29 , I get the
following message
:
[EMAIL PROTECTED] ~/ns-allinone-2.29/ns-2.29/tcl/ex
$ ns flooding1.tcl
num_nodes is set 30
warning: Please use -channel as shown in
tcl/ex/wireless-mitf.tcl
INITIALIZE THE LIST xListHead
Loading topology file...
Load complete...
*** NOTE: no node-on-off file specified.
Loading traffic
file...
Starting Simulation...
channel.cc:sendUp - Calc highestAntennaZ_ and distCST_
highestAntennaZ_ = 1.5, distCST_ = 550.0
SORTING LISTS ...DONE!
Cancelling CS- node 19
Cancelling CS- node 26
Cancelling CS- node 19
.
Cancelling CS- node 12
Cancelling CS- node
24
Cancelling CS- node 7
Couldn't schedule timer
So I changed flooding1.tcl .I get flooding2.tcl. But while
running
ns2.29 , I get the following message :
[EMAIL PROTECTED] ~/ns-allinone-2.29/ns-2.29/tcl/ex
$ ns flooding2.tcl
num_nodes is set 30
warning: Please use -channel as shown
in tcl/ex/wireless-mitf.tcl
invalid command name -initialEnergy
while executing
-initialEnergy $opt(initeng)
(file flooding2.tcl line 215)
What does it mean?I can not find any error.But It cannot run correctly. I
need your help.
I would really appreciate any help that I am to get. Thanks very
much.
Yours truly,
litingyi
__
赶快注册雅虎超大容量免费邮箱?
http://cn.mail.yahoo.com# ==
# Define options
# ==
set opt(chan) Channel/WirelessChannel
set opt(prop) Propagation/TwoRayGround
set opt(netif) Phy/WirelessPhy
set opt(mac)Mac/SMAC
set opt(ifq)Queue/DropTail/PriQueue
set opt(ll) LL
set opt(ant)Antenna/OmniAntenna
set opt(god)off
set opt(x) 800 ;# X dimension of the topography
set opt(y) 800 ;# Y dimension of the topography
set opt(traf) ../test/sk-30-3-3-1-1-6-64.tcl ;# traffic file
set opt(topo) ../test/scen-800x800-30-500-1.0-1 ;# topology
file
set opt(onoff);#node on-off
set opt(ifqlen) 50 ;# max packet in ifq
set opt(nn) 30 ;# number of nodes
set opt(seed) 0.0
set opt(stop) 20 ;# simulation time
set opt(prestop)19 ;# time to prepare to stop
set opt(tr) wireless.tr ;# trace file
set opt(nam)wireless.nam ;# nam file
set opt(engmodel) EnergyModel ;
set opt(txPower)0.660;
set opt(rxPower)0.395;
set opt(idlePower) 0.035;
set opt(initeng)1.0 ;# Initial energy in Joules
set opt(logeng) off ;# log energy every 1 seconds
set opt(lm) off ;# log movement
set opt(adhocRouting) FLOODING
set opt(duplicate) enable-duplicate
# ==
LL set mindelay_50us
LL set delay_ 25us
LL set bandwidth_ 0 ;# not used
Queue/DropTail/PriQueue set Prefer_Routing_Protocols1
# unity gain, omni-directional antennas
# set up the antennas to be centered in the node and 1.5 meters above it
Antenna/OmniAntenna set X_ 0
Antenna/OmniAntenna set Y_ 0
Antenna/OmniAntenna set Z_ 1.5
Antenna/OmniAntenna set Gt_ 1.0
Antenna/OmniAntenna set Gr_ 1.0
# Initialize the SharedMedia interface with parameters to make
# it work like the 914MHz Lucent WaveLAN DSSS radio interface
Phy/WirelessPhy set CPThresh_ 10.0
Phy/WirelessPhy set CSThresh_ 1.559e-11
Phy/WirelessPhy set RXThresh_ 3.652e-10
Phy/WirelessPhy set Rb_ 2*1e6
Phy/WirelessPhy set Pt_ 0.2818
Phy/WirelessPhy set freq_ 914e+6
Phy/WirelessPhy set L_ 1.0
# ==
proc usage { argv0 } {
puts Usage: $argv0
puts \t\t\[-topo topology file\] \[-traf traffic file\]
puts \t\t\[-x max x\] \[-y max y\] \[-seed seed\]
puts \t\t\[-nam nam file\] \[-tr trace file\] \[-logeng on or off\]
puts \t\t\[-stop time to stop\] \[-prestop time to prepare to stop\]
puts \t\t\[-initeng initial energy\] \[-engmodel energy model\]
puts \t\t\[-chan channel model\] \[-prop propagation model\]
puts \t\t\[-netif network interface\] \[-mac mac layer\]
puts \t\t\[-ifq interface queue\] \[-ll link layer\] \[-ant antena\]
puts \t\t\[-ifqlen interface queue length\] \[-nn number of nodes\]
}
proc getopt {argc argv} {
global opt
lappend optlist cp nn seed sc stop tr x y
for {set i 0} {$i $argc} {incr i} {
[ns] Dynamic Address RouTing (DART) protocol for ad hoc networks porting
Hi, I'm working on a porting of DART protocol (http://www.cs.ucr.edu/~jeriksson/pubs/dart_ton_2006.pdf) for NS2. This routing protocol for ad hoc networks differs from the well known protocols in lecterature; in fact this work uses transient routing addresses (dynamic addresses), which indicates the location of a node in the network. I hope to release a first beta release of the code in the next weeks, however any help or contribute will be appreciated. Best regards. Marcello Caleffi - PhD student Università Federico II - Neaples (Italy) This message was sent using IMP, the Internet Messaging Program.
[ns] problem in the DSR simulation
Dear all, I am doing the performance of DSR in ns-2. The simulations will halt at a strange time and display: num_nodes is set 200 warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl INITIALIZE THE LIST xListHead Loading connection pattern... Loading scenario file... Starting Simulation... channel.cc:sendUp - Calc highestAntennaZ_ and distCST_ highestAntennaZ_ = 1.5, distCST_ = 550.0 SORTING LISTS ...DONE! Killed This is the error that I got using FC3 and ns2.29. I use the setdest with parameters: -n 200 -p 10 -t 20 -M 10.0 -x 3000 -y 600 Any help would be very gratefully received, Many thanks, Miao --=_Part_6640_9542919.1150199559521 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline divDear all,brbrI am doing the performance of DSR in ns-2. The simulations will halt at a strange time and display:/div divnbsp;/div divnum_nodes is set 200brwarning: Please use -channel as shown in tcl/ex/wireless-mitf.tclbrINITIALIZE THE LIST xListHeadbrLoading connection pattern...brLoading scenario file...brStarting Simulation...brchannel.cc:sendUp - Calc highestAntennaZ_ and distCST_brhighestAntennaZ_ = 1.5,nbsp; distCST_ = 550.0brSORTING LISTS ...DONE!brKilledbrnbsp;/div divThis is the error that I got using FC3 and ns2.29./div divI use the setdest with parameters: -n 200 -p 10 -t 20 -M 10.0 -x 3000 -y 600/div divnbsp;/div divAny help would be very gratefully received,brMany thanks,brMiaobrnbsp;/div --=_Part_6640_9542919.1150199559521--
[ns] DHT implemented in NS-2
Dear Ns-users and developers, I am looking for DHTs implemented in NS-2, like chord, pastry, kademlia, CAN, etc. At this moment I could only find one DHT (CAN) implemented in NS-2 which is cited by the paper called A scalable architecture for SIP infrastructure using content addressable networks Balasubramanian, R.; Rhee, I.; Jaewoo Kang;Communications, 2005. ICC 2005. Do you know any other DHT implementation on NS-2? Best Regards Marcel Castro
[ns] problem of ns-allinone-2.1b9a installation
hello, I want to install ns-allinone-2.1b9a on cygwin according to http://www.isi.edu/nsnam/ns/ns-cygwin-old.html but according to it, ns-allinone-2.1b9a must use gcc-3.2. But now the cygwin only offer the gcc-3.3 above, then how can I install ns-allinone-2.1b9a??? I used gcc-3.4, the problem while installation is that: can't find x library. I wonder if this problem is caused from the use of gcc-3.4? or else? thx!
