Re: [ns] R: Turn Nodes on/off
Hi, You may add -g to the compilation options (gcc -g ...). This can be done in the Makefile.in file. Then you will be able to launch the gdb debugger on ns executable file by: gdb ns In the opened interpreter use the following commands: r the_name_of_my_script.tcl bt And gdb will provide you with the last system calls before the segmentation fault, allowing you to locate the source of the error. Mit freundlichen Grüßen, with kind regards, cordialement, -- Gilles BERTRAND Institut National des Télécommunications (GET)- Universität Stuttgart Tel: +33 (0) 3 29 63 22 08 -- Marco Fiore a écrit : Hi, assuming that violación de segmento translates into segment fault, this error is very often caused by a NULL pointer. I.e. look into your code for pointers, and check that you never fall in the case p-something, where p is NULL. regards, Marco Fiore Messaggio originale Da: [EMAIL PROTECTED] Data: 21-giu-2006 4.11 PM A: ns- [EMAIL PROTECTED] Ogg: [ns] Turn Nodes on/off We have a system working and now we are trying to introduce an node on/off file. Unfortunately we are the following errors: Load File onoff1 complete. NS-2 STARTS Simulation of prueba2.tcl Violación de segmento Can any one help us??
[ns] Integrate NS-2 with real network
Hi! I need help about integrate NS-2 into a real network. I would like that a real client communicates with a node within the simulator or with another node external to the simular (eg. a server). I saw the emulator extension, and now I can use ns-2 as a gateway, but I don't know how make real-simulator network communication (can I assign a real IP address to a simulated node? I read that I can't...). I would appreciate any suggestion/link/idea/code!! Thanks, Paolo Carpo
[ns] pareto and exponetial sources: what is the actual bitrate generated
dear Ns-users, I am modelling some traffic with Pareto and Exponential Applications. But I notice that the bit rate that is really generated by these Applications is different from the one specified in rate_ variable. For example if I specify a bitrate of 100kb/s, a on/time of 10ms a off time of 10ms my Exponential Application generates onlyt 88.9 kb/s . I have seen that the generated bitrate depends on the on and off time but I would like to know how. many thanks for your help. Mit freundlichen Grüßen, with kind regards, cordialement, -- Gilles BERTRAND Telecom INT - University of Stuttgart --
[ns] run AODV
Hallo I am a new user for NS2 and I use ns-allinone-2.29. Can anyone help me .. How can i run AODV code? thanks
Re: [ns] Wired thru BS to Wireless and vice versa
On 6/23/06, Varrian Hall [EMAIL PROTECTED] wrote: Hello, I have been racking my brain trying to figure out how to simulate a mobile using communicating to a node in a wired domain through a base station. Please assist with this issue. Nothing I'm trying is working. thanks, This tutorial about wired cum wireless simulations might help :-) http://www.isi.edu/nsnam/ns/tutorial/nsscript6.html -- Hai-Nam NGUYEN Elève 3A SLR, ENST Bretagne 2 rue de la Châtaigneraie, 35576 Cesson Sévigné Site web: http://www.jcisio.com
Re: [ns] R: Turn Nodes on/off
On 6/23/06, Gilles Bertrand [EMAIL PROTECTED] wrote: Hi, You may add -g to the compilation options (gcc -g ...). This can be done in the Makefile.in file. Then you will be able to launch the gdb debugger on ns executable file by: gdb ns In the opened interpreter use the following commands: r the_name_of_my_script.tcl bt And gdb will provide you with the last system calls before the segmentation fault, allowing you to locate the source of the error. Hello, [sorry for this off-topic post] Where do you run ns ? When I run gdb ns in the tcl script folder, then r example.tcl (in fact I do all that in ddd), they says that file nn.ext not found like this (in French): = 0x0817059b in hdr_cmn::pop_src_rt() (this=0x89d4a38) at packet.h:531 531 packet.h: Aucun fichier ou répertoire de ce type. in packet.h = The same problem that I can't put a breakpoint or step outside the main program. How can you do so that gdb knows where to look for included files ? Regards, -- Hai-Nam NGUYEN Elève 3A SLR, ENST Bretagne 2 rue de la Châtaigneraie, 35576 Cesson Sévigné Site web: http://www.jcisio.com
Re: [ns] R: Turn Nodes on/off
Chao Hai, well to the best of my knowledge, gdb should not have to knwo where to look for the files as it is launched on an executable. What is is used for is to know in which function the problem happens. Then you should know in which file you have implemented this function (else a grep command could help a lot ;o) ). have you had a look at the line 531 of packet.h (probably located in folder /ns-allinone.../ns-version/common) ? Ho I almost forgot: i am french so if you wanna discuss this topic off-line in french, you may e-mail me. Regards, -- Gilles BERTRAND Telecom INT - University of Stuttgart -- 2006/6/23, Hai Nam [EMAIL PROTECTED]: On 6/23/06, Gilles Bertrand [EMAIL PROTECTED] wrote: Hi, You may add -g to the compilation options (gcc -g ...). This can be done in the Makefile.in file. Then you will be able to launch the gdb debugger on ns executable file by: gdb ns In the opened interpreter use the following commands: r the_name_of_my_script.tcl bt And gdb will provide you with the last system calls before the segmentation fault, allowing you to locate the source of the error. Hello, [sorry for this off-topic post] Where do you run ns ? When I run gdb ns in the tcl script folder, then r example.tcl (in fact I do all that in ddd), they says that file nn.ext not found like this (in French): = 0x0817059b in hdr_cmn::pop_src_rt() (this=0x89d4a38) at packet.h:531 531 packet.h: Aucun fichier ou répertoire de ce type. in packet.h = The same problem that I can't put a breakpoint or step outside the main program. How can you do so that gdb knows where to look for included files ? Regards, -- Hai-Nam NGUYEN Elève 3A SLR, ENST Bretagne 2 rue de la Châtaigneraie, 35576 Cesson Sévigné Site web: http://www.jcisio.com
[ns] Indoor and outdoor parameters
All, When using shadowing propagation model setting path loss to 2 (range 2 to 3.7) and standard deviation to 3 (range 2 to 3) mainly suites an indoor environment. Propagation/Shadowing set pathlossExp_ 2.0 Propagation/Shadowing set std_db_ 3.0 my questions are: 1. Is the above accurate? 2. If so, how can I define path loss and standard deviation to suite for an outdoor simulated environment? Thanks, Sasan
Re: [ns] R: Turn Nodes on/off
On 6/23/06, Gilles Bertrand [EMAIL PROTECTED] wrote: well to the best of my knowledge, gdb should not have to knwo where to look for the files as it is launched on an executable. What is is used for is to know in which function the problem happens. Then you should know in which file you have implemented this function (else a grep command could help a lot ;o) ). Thanks, ok it's now clear for me that gdb doesn't know directory structure of source files. I asked this question just because I don't like the error file not found of gdb ^_^ packet.h is a file that I've modified ;-) Best regards, -- Hai-Nam NGUYEN Elève 3A SLR, ENST Bretagne 2 rue de la Châtaigneraie, 35576 Cesson Sévigné Site web: http://www.jcisio.com
Re: [ns] R: Turn Nodes on/off
Hi all, That would be a bad idea if you go offline to discuss this topic or any other topic by which others can benefit as well. At least I learned from this discussion ;-) Regards - Original Message - From: Gilles Bertrand [EMAIL PROTECTED] To: Hai Nam [EMAIL PROTECTED] Cc: ns-users@ISI.EDU Sent: Friday, June 23, 2006 9:57 AM Subject: Re: [ns] R: Turn Nodes on/off Chao Hai, well to the best of my knowledge, gdb should not have to knwo where to look for the files as it is launched on an executable. What is is used for is to know in which function the problem happens. Then you should know in which file you have implemented this function (else a grep command could help a lot ;o) ). have you had a look at the line 531 of packet.h (probably located in folder /ns-allinone.../ns-version/common) ? Ho I almost forgot: i am french so if you wanna discuss this topic off-line in french, you may e-mail me. Regards, -- Gilles BERTRAND Telecom INT - University of Stuttgart -- 2006/6/23, Hai Nam [EMAIL PROTECTED]: On 6/23/06, Gilles Bertrand [EMAIL PROTECTED] wrote: Hi, You may add -g to the compilation options (gcc -g ...). This can be done in the Makefile.in file. Then you will be able to launch the gdb debugger on ns executable file by: gdb ns In the opened interpreter use the following commands: r the_name_of_my_script.tcl bt And gdb will provide you with the last system calls before the segmentation fault, allowing you to locate the source of the error. Hello, [sorry for this off-topic post] Where do you run ns ? When I run gdb ns in the tcl script folder, then r example.tcl (in fact I do all that in ddd), they says that file nn.ext not found like this (in French): = 0x0817059b in hdr_cmn::pop_src_rt() (this=0x89d4a38) at packet.h:531 531 packet.h: Aucun fichier ou répertoire de ce type. in packet.h = The same problem that I can't put a breakpoint or step outside the main program. How can you do so that gdb knows where to look for included files ? Regards, -- Hai-Nam NGUYEN Elève 3A SLR, ENST Bretagne 2 rue de la Châtaigneraie, 35576 Cesson Sévigné Site web: http://www.jcisio.com
Re: [ns] R: Turn Nodes on/off
Hi Shafiq, you are right, I know :o) This suggestion was done in case more detailled and very specific help was required, which is not the case :o) Regards, -- Gilles BERTRAND Telecom INT - University of Stuttgart -- 2006/6/23, Shafiq Hashmi [EMAIL PROTECTED]: Hi all, That would be a bad idea if you go offline to discuss this topic or any other topic by which others can benefit as well. At least I learned from this discussion ;-) Regards - Original Message - From: Gilles Bertrand [EMAIL PROTECTED] To: Hai Nam [EMAIL PROTECTED] Cc: ns-users@ISI.EDU Sent: Friday, June 23, 2006 9:57 AM Subject: Re: [ns] R: Turn Nodes on/off Chao Hai, well to the best of my knowledge, gdb should not have to knwo where to look for the files as it is launched on an executable. What is is used for is to know in which function the problem happens. Then you should know in which file you have implemented this function (else a grep command could help a lot ;o) ). have you had a look at the line 531 of packet.h (probably located in folder /ns-allinone.../ns-version/common) ? Ho I almost forgot: i am french so if you wanna discuss this topic off-line in french, you may e-mail me. Regards, -- Gilles BERTRAND Telecom INT - University of Stuttgart -- 2006/6/23, Hai Nam [EMAIL PROTECTED]: On 6/23/06, Gilles Bertrand [EMAIL PROTECTED] wrote: Hi, You may add -g to the compilation options (gcc -g ...). This can be done in the Makefile.in file. Then you will be able to launch the gdb debugger on ns executable file by: gdb ns In the opened interpreter use the following commands: r the_name_of_my_script.tcl bt And gdb will provide you with the last system calls before the segmentation fault, allowing you to locate the source of the error. Hello, [sorry for this off-topic post] Where do you run ns ? When I run gdb ns in the tcl script folder, then r example.tcl (in fact I do all that in ddd), they says that file nn.ext not found like this (in French): = 0x0817059b in hdr_cmn::pop_src_rt() (this=0x89d4a38) at packet.h:531 531 packet.h: Aucun fichier ou répertoire de ce type. in packet.h = The same problem that I can't put a breakpoint or step outside the main program. How can you do so that gdb knows where to look for included files ? Regards, -- Hai-Nam NGUYEN Elève 3A SLR, ENST Bretagne 2 rue de la Châtaigneraie, 35576 Cesson Sévigné Site web: http://www.jcisio.com
[ns] MACs for wireless sensor networks
Hello: Besides S-MAC, are there any other popular MACs such as the B-MAC available for NS2? Thanks for your help John
[ns] Problem with SMAC when running ns2 with a clustering protocol as a routing agent
Hello Everyone, I am currently trying to add a clustering protocol to the existing protocol stack of the wireless node in ns2. The final modified stack consists of clustering layer right below the routing layer. I did make all the necessary modifications in the ns2 code and tried to run the simulation. For some reason, the simulation doesnt run to it finish time. I dont see any errors but ns2 just quits after running for a part of the finish time. I thought there might be some memory problems or errors in the stack connections due to the modications I made. So, I took a fresh ns2 and implemented a basic clustering protocol as a routing protocol following the existing AODV implementation. There are no traffic sources and all my current implementation does is broadcasts clustering hello packets upto a maximum of 2 hops. My simulation runs completely to the finish time when I use 802.11 at the MAC layer. But it doesnt run to the finish time when SMAC is used. Could anyone help me with this problem. Do you think there is a problem with the clustering protocol or SMAC? I would appreciate any insight into this problem. The script file and the outputs are pasted below. Ns2 version: ns2.27 OS: Suse 9.0 Other Info: Applied the nrl's sensor sim patch to ns2. but in current simulation I havent used nrl's features. Regards Kiran Anna PhD student, University of Central Florida, Orlando, FL-32826 SMAC: This is a multi-channel sensor network test program. Starting Simulation... NOTE: SMAC is running with sleep-wakeup cycles on. Please make sure to run yr applications AFTER the nodes get sync'ed which is about 40sec for the default settings. num_nodes is set 26 Sent SYNC from 5.at 17.182000 Sent SYNC from 11.at 18.615000 Sent SYNC from 0.at 20.044000 Sent SYNC from 19.at 20.044000 Sent SYNC from 22.at 21.477000 Sent SYNC from 16.at 22.906000 Sent SYNC from 17.at 22.906000 Sent SYNC from 24.at 24.337000 Sent SYNC from 23.at 24.337000 Sent SYNC from 8.at 25.768000 Sent SYNC from 6.at 25.768000 Sent SYNC from 25.at 27.199000 Sent SYNC from 3.at 27.199000 Sent SYNC from 9.at 28.63 Sent SYNC from 16.at 30.061000 Sent SYNC from 15.at 30.069000 Sent SYNC from 21.at 31.493000 Sent SYNC from 4.at 32.929000 Sent SYNC from 2.at 34.354000 Sent SYNC from 24.at 34.354000 Sent SYNC from 6.at 35.788000 Sent SYNC from 13.at 37.216000 Sent SYNC from 11.at 37.216000 Sent SYNC from 2.at 38.647000 Node3 chooses itself as cluster head at 40.01 Node#3 sending senCluster Hello at 40.01 Node5 chooses itself as cluster head at 40.01 Node#5 sending senCluster Hello at 40.01 Node7 chooses itself as cluster head at 40.01 Node#7 sending senCluster Hello at 40.01 Node13 chooses itself as cluster head at 40.01 Node#13 sending senCluster Hello at 40.01 Node18 chooses itself as cluster head at 40.01 Node#18 sending senCluster Hello at 40.01 Node25 chooses itself as cluster head at 40.01 Node#25 sending senCluster Hello at 40.01 Node#3 LL sending down a broadcast packet at 40.01 Node#3 LL sending the packet to the IFQueue at 40.01 Node#5 LL sending down a broadcast packet at 40.01 Node#5 LL sending the packet to the IFQueue at 40.01 Node#7 LL sending down a broadcast packet at 40.01 Node#7 LL sending the packet to the IFQueue at 40.01 Node#13 LL sending down a broadcast packet at 40.01 Node#13 LL sending the packet to the IFQueue at 40.01 Node#18 LL sending down a broadcast packet at 40.01 Node#18 LL sending the packet to the IFQueue at 40.01 Node#25 LL sending down a broadcast packet at 40.01 Node#25 LL sending the packet to the IFQueue at 40.01 PRIQUEUE receiving SENCLUSTER packet and adding at the front of the queue at 40.010025 PRIQUEUE sending a packet down to MAC LAYER at 40.010025 PRIQUEUE receiving SENCLUSTER packet and adding at the front of the queue at 40.010025 PRIQUEUE sending a packet down to MAC LAYER at 40.010025 PRIQUEUE receiving SENCLUSTER packet and adding at the front of the queue at 40.010025 PRIQUEUE sending a packet down to MAC LAYER at 40.010025 PRIQUEUE receiving SENCLUSTER packet and adding at the front of the queue at 40.010025 PRIQUEUE sending a packet down to MAC LAYER at 40.010025 PRIQUEUE receiving SENCLUSTER packet and adding at the front of the queue at 40.010025 PRIQUEUE sending a packet down to MAC LAYER at 40.010025 PRIQUEUE receiving SENCLUSTER packet and adding at the front of the queue at 40.010025 PRIQUEUE sending a packet down to MAC LAYER at 40.010025 Sent SYNC from 8.at 40.078000 Node#5 LL recved a packet and sending to classifier at 40.188000 Node#2 LL recved a packet and sending to classifier at 40.188000 Node#8 LL recved a packet and sending to classifier at 40.188000 Node#9
[ns] Sending packets from different flows to a destination via two different paths
Hello, I have created two nodes in ns2 which are connected to each other using two links. I have created also two different UDP flows on n0 (source node) to be transmitted to n1 (destination node). Is it possible to have packets belonging to flow 1 routed from one link and packets belonging to flow 2 routed from the other link? Thank you in advance? -- Nicholas Loulloudes Postgraduate at Communication Networks and Software. BSc in Computer Science.
