[ns] share a debug tools packet
Recent release of ns-2.32 enable Tk for ns-2. Patches contributed by Pedro Vale Estrela: Pedro's debugging page: http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html Here's a patch that I created for enabling all the debug features,described on the page above, only with a few commands. Extract it in the ns-allinone-2.32 directory, cd ns-allinone-2.32/debug-allinone ./debuginstall cd .. ./install source debug-allinone/addpath (You can run "debuginstall" either before or after installing ns-allinone-2.32) After these step, you can do both c++ debugging and tcl debugging. Further guide after installing the debug tools: http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging3.html -- Regards -Ye
Re: [ns] share a debug tools packet
hi! this is a very welcome and interesting patch. I'll test it on monday and mention on my web page If it gest sufficient test, I can try to push it to the developers into v2.33 regards pedro vale estrela On 9/5/07, Ye YiBin <[EMAIL PROTECTED]> wrote: > > Recent release of ns-2.32 enable Tk for ns-2. Patches contributed by > Pedro Vale Estrela: Pedro's debugging page: > http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging2.html > > Here's a patch that I created for enabling all the debug > features,described on the page above, only with a few commands. > > Extract it in the ns-allinone-2.32 directory, > cd ns-allinone-2.32/debug-allinone > ./debuginstall > cd .. > ./install > source debug-allinone/addpath > > (You can run "debuginstall" either before or after installing > ns-allinone-2.32) > After these step, you can do both c++ debugging and tcl debugging. > Further guide after installing the debug tools: > http://tagus.inesc-id.pt/~pestrela/ns2/ns2_debugging3.html > > -- > Regards > -Ye > >
[ns] Relation between cwnd and rate?
I'm simulating CUBIC using TCP Linux and tracking cwnd and sending rate but the results are somewhat puzzling. I would expect the sending rate to equal cwnd * MSS / delay but it doesn't. It appears to be correct in itself (~90% of the link bandwidth), but the formula above suggest a rate about 3.5 times higher for all my experiments, with varying bandwidth, number of TCP flows and delay. What am I missing? -- Jasin
[ns] Agent/TCP and Agent/TCPSink/Sack1/DelAck parameters
Can someone help me with an explanation of the following parameters of the TCP agent: timestamps_ partial_ack_ And for the sink agent: generateDSacks_ ts_echo_rfc1323_ interval_ Pointing me at appropriate documentation would be just as appreciated, but I've had no luck finding it on my own. -- Jasin
[ns] Need help simulating model
Hi I'm trying to simulate a core network and carry out measurements based on VoIP QoS parameters... I wanna connect 3-4 WAN models to a core network which consists of routers... Can someone pls give me an idea of how to go about this using NS-2... what would my tcl scripts look like? how many nodes do i need for each WAN and how can I interconnect them to depict a proper WAN model? how can I use tcl scripts to configure a core network which consists of routers and manage traffic? Please someeone help. Thanks Regards, Brenda
[ns] wpan 802.15.4 MCPS_DATA_request
Have anybody ever successfully used this primitive?! It's a couple of weeks that I'm trying to transfer my own data packet using that but not a packet leaves my nodes! Please help me _ Crea GRATIS i tuoi biglietti da visita su Windows Live Messenger! http://www.messenger.it/biglietti_da_visita.html
Re: [ns] implemention of wireless ad hoc network with ns2
Take a look at this website. It's very helpful http://hpds.ee.ncku.edu.tw/~smallko/ns2/Evalvid_in_NS2.htm Best, Hui >From: Bin Zhang <[EMAIL PROTECTED]> >To: ns-users@ISI.EDU >Subject: [ns] implemention of wireless ad hoc network with ns2 >Date: Wed, 05 Sep 2007 17:45:17 +0200 > > >hi dear users, > >i would like to do some research with regard to video streaming through >the wireless ad hoc network. Because I am Video-Coder and didn't have >any experience to implement network with NS2. So it would be very >helpful, if anybody could give some some ideas about the implementation >or even some script at hand to support my research? I am appriciated >for any kind of response. > >thanks, > >B. Zhang > _ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
[ns] implemention of wireless ad hoc network with ns2
hi dear users, i would like to do some research with regard to video streaming through the wireless ad hoc network. Because I am Video-Coder and didn't have any experience to implement network with NS2. So it would be very helpful, if anybody could give some some ideas about the implementation or even some script at hand to support my research? I am appriciated for any kind of response. thanks, B. Zhang
Re: [ns] For Throughput comparison of TCP Reno, Tahoe , SACK
I am just reading this document to get some data to calculate RTT in TCP. I think that you may find it helpful too. http://www.netlab.hut.fi/~jmantti3/pubs/special_study.pdf -as > > Hello I m a novice NS user. If i want to see some throughput > comparison of TCP Reno, Tahoe, SACK --- which steps i need to follow. > If someone can help me providing some good URL for learning my > queries i will be grateful. > > [EMAIL PROTECTED] wrote: > Welcome to posting to the ns-users mailing list! > > We automatically send this message to every new person who sends mail > to the list. You should only receive it once. My apologies if the > program contacts you twice, perhaps because you have multiple e-mail > addresses or send mail from multiple machines. > > If you are an experienced ns-user who simply has not posted since we > started using this responder, our apologies for inconveniencing you > with this message. This message is intended to help inform users and > cut down on redundant posts, which benefits everyone. > > Please look at the attached list of ns Frequently Asked Questions. > If it answers your question, great! You're done. > If not, please RE-SEND your original message to [EMAIL PROTECTED] > A copy of your original message is included below for reference. > > You will NOT have to do re-send your message every time you post, only > the FIRST time you send from a new account. The goal is to quickly > help new users find the FAQ (hopefully answering their question). > > Thanks, > -the ns development team > > > > > > The Network Simulator ns-2: Frequently Asked Questions > > (This FAQ is also on the web at > http://www.isi.edu/nsnam/ns/ns-faq.html.) > > * _Where do I get ns?_ > >>From the ns web site at http://www.isi.edu/nsnam/ns/ns.html and > the download page http://www.isi.edu/nsnam/ns/ns-tests.html. > > * _What platforms does ns run on and what kind of hardware do I > need?_ > > Please see "where to start" on the building ns web page: > http://www.isi.edu/nsnam/ns/ns-build.html#start. > > * _What should I do if I have trouble downloading/extracting ns?_ > > This question is answered in detail at > http://www.isi.edu/nsnam/ns/ns-problems.html#downloading. > > * _What should I do if I encounter problems building ns?_ > > Check: > 1. the README that comes in the distribution (very brief), > 2. the "installation problems, bug fixes and help" web page > http://www.isi.edu/nsnam/ns/ns-problems.html, > 3. the archives of the ns-users mailing list > http://www.isi.edu/nsnam/ns/ns-lists.html, > 4. post a bug report (see below) > http://www.isi.edu/cgi-bin/nsnam/reportbug.cgi. > > * _What do I do after I successfully build ns?_ > > + Put the path to your ns executable into your PATH environment > + Put the path to your otcl into your LD_LIBRARY_PATH > environment > + Put the path to your tcl library into your TCL_LIBRARY > environment > > * _Where can I find documentation for ns?_ > > All documentation is linked from the main ns web page > http://www.isi.edu/nsnam/ns/. Documentation includes a tutorial > (originally from Marc Greis) and a reference manual (ns notes and > documentation). > > * _Words, words, words... that documentation is nice, but where are > some sample scripts I can start from?_ > > Many sample scripts can be found in the ns distribution in > ~ns-2/tcl/ex and ~ns-2/tcl/test. > > * _What protocols does ns support?_ > > A lot! Almost all variants of TCP, several forms of multicast, > wired networking, several ad hoc routing protocols and propagation > models (but not cellular phones), data diffusion, satellite, and > other stuff. See the documentation (described above) for details, > or download ns and look. > > * _How do I know that ns correctly implements these protocols?_ > > Ns has validation tests that cover many protocols, see > http://www.isi.edu/nsnam/ns/ns-tests.html. However, ultimately > users are responsible for verifying that ns is accurate for their > purposes---since we cannot foresee all the ways ns may be used, we > cannot test all cases with all inputs. > > * _Are there any contributed/additional protocols not in the main > distribution?_ > > Yes, please see the contributed code web page > http://www.isi.edu/nsnam/ns/ns-contributed.html. The mailing list > archives can also be helpful (see below). > > * _How should I get started doing something (like implementing a new > protocol or trying an experiment)?_ > > We recommend that you look through the tutorial (see > documentation, above), then start with an example program that is > most similar to yours (in the tutorial, or in tcl/ex or tcl/test > in the distribution), and then start changing things. > > * _What should I do to compile ns to reflect my changes if I've > modified some .cc or .h files?_ > > go to ns directory and run "make" or "make depend; make" > > * _How do I subscribe to the ns-users mailing list? How do I search > old list archives? I can't take any more---how
[ns] Simulate multihoming in wireless environment
Hi All NS users. I was trying to simulate wired sum wireless scenario in NS2 using multimode sctp as the transport protocol.. But when i sumulate it i get errors... Can anyone help thanks in advance Nitin
Re: [ns] For Throughput comparison of TCP Reno, Tahoe , SACK
There is a classic paper on this: "Simulation-based Comparisons of Tahoe, Rent, and SACK TCP" by Kevin Fall and Sally Floyd. And the scripts used in this paper seem to be available in the ns package. > Date: Tue, 4 Sep 2007 22:31:09 -0700> From: [EMAIL PROTECTED]> To: > ns-users@ISI.EDU> Subject: [ns] For Throughput comparison of TCP Reno, Tahoe > , SACK> > > Hello I m a novice NS user. If i want to see some throughput> > comparison of TCP Reno, Tahoe, SACK --- which steps i need to follow.> If > someone can help me providing some good URL for learning my> queries i will > be grateful.> > [EMAIL PROTECTED] wrote: > Welcome to posting to the ns-users > mailing list!> > We automatically send this message to every new person who > sends mail> to the list. You should only receive it once. My apologies if > the> program contacts you twice, perhaps because you have multiple e-mail> > addresses or send mail from multiple machines.> > If you are an experienced > ns-user who simply has not posted since we> started using this responder, our > apologies for inconveniencing you> with this message. This message is > intended to help inform users and> cut down on redundant posts, which > benefits everyone.>! > Please look at the attached list of ns Frequently Asked Questions.> If it answers your question, great! You're done.> If not, please RE-SEND your original message to [EMAIL PROTECTED]> A copy of your original message is included below for reference.> > You will NOT have to do re-send your message every time you post, only> the FIRST time you send from a new account. The goal is to quickly> help new users find the FAQ (hopefully answering their question).> > Thanks,> -the ns development team> > > > > > The Network Simulator ns-2: Frequently Asked Questions> > (This FAQ is also on the web at> http://www.isi.edu/nsnam/ns/ns-faq.html.)> > * _Where do I get ns?_> > >From the ns web site at http://www.isi.edu/nsnam/ns/ns.html and> the download page http://www.isi.edu/nsnam/ns/ns-tests.html.> > * _What platforms does ns run on and what kind of hardware do I> need?_> > Please see "where to start" on the building ns web page:> http://www.is! i.edu/nsnam/ns/ns-build.html#start.> > * _What should I do if I have t rouble downloading/extracting ns?_> > This question is answered in detail at> http://www.isi.edu/nsnam/ns/ns-problems.html#downloading.> > * _What should I do if I encounter problems building ns?_> > Check:> 1. the README that comes in the distribution (very brief),> 2. the "installation problems, bug fixes and help" web page> http://www.isi.edu/nsnam/ns/ns-problems.html,> 3. the archives of the ns-users mailing list> http://www.isi.edu/nsnam/ns/ns-lists.html,> 4. post a bug report (see below)> http://www.isi.edu/cgi-bin/nsnam/reportbug.cgi.> > * _What do I do after I successfully build ns?_> > + Put the path to your ns executable into your PATH environment> + Put the path to your otcl into your LD_LIBRARY_PATH> environment> + Put the path to your tcl library into your TCL_LIBRARY> environment> > * _Where can I find documentation for ns?_> > All documentation is linked from the main ns web page> http://www.isi.edu/nsnam/ns/. Documentation includes a tutorial> (originally fro! m Marc Greis) and a reference manual (ns notes and> documentation).> > * _Words, words, words... that documentation is nice, but where are> some sample scripts I can start from?_> > Many sample scripts can be found in the ns distribution in> ~ns-2/tcl/ex and ~ns-2/tcl/test.> > * _What protocols does ns support?_> > A lot! Almost all variants of TCP, several forms of multicast,> wired networking, several ad hoc routing protocols and propagation> models (but not cellular phones), data diffusion, satellite, and> other stuff. See the documentation (described above) for details,> or download ns and look.> > * _How do I know that ns correctly implements these protocols?_> > Ns has validation tests that cover many protocols, see> http://www.isi.edu/nsnam/ns/ns-tests.html. However, ultimately> users are responsible for verifying that ns is accurate for their> purposes---since we cannot foresee all the ways ns may be used, we> cannot test all cases with all inputs.> > * _Are there a! ny contributed/additional protocols not in the main> distribution?_> > Yes, please see the contributed code web page> http://www.isi.edu/nsnam/ns/ns-contributed.html. The mailing list> archives can also be helpful (see below).> > * _How should I get started doing something (like implementing a new> protocol or trying an experiment)?_> > We recommend that you look through the tutorial (see> documentation, above), then start with an example program that is> most similar to yours (in the tutorial, or in tcl/ex or tcl/test> in the distribution), and then start changing things.> > * _What should I do to compile ns to reflect my changes if I've> modified some .cc or .h
[ns] Wired cum Wireless routing using 802.11 snapshot.
Hi Everyone, I am doing research in the IEEE 802.11e hcca QoS enhancement using the ns2 802.11 snapshot ( ns-2-94a21377a8a6) by Mathieu Lacage. I was looking through the NS2 developers' mailing list and I saw that there was some attempts to implement Wired cum Wireless simulations using the 802.11 snapshot, and Franceso Gringoli from the University of Brescia mentioned that they had a script which they were going to try out. I have tried to adapt the model from Marc Greis' tutotrial but with nos succes. Does anyone have any tips or suggestions on this issue? Thanks very much in advance. Samuel Senkindu.
Re: [ns] printing the ackno
Hi, A one-way TCP does not use field ackno_. Instead, the TCP Sink creates an ACK packet by placing ACKNO in the field seqno_ of the ACK packet. So you just need to print out field seqno_ but you have to make sure that the corresponding packet is an ACK number. Cheers, Teerawat On 9/4/2007, "Sebastian Harko" <[EMAIL PROTECTED]> wrote: > >Hello, >I want to print the "acknowledgment number" of every ACK in the terminal... >So I went to tcp.cc ( "newack" method ) and I did this: > >cout << "ACK number is: " << tcph->ackno_ << endl; > >but all the ACK numbers it prints for a simple simulation are equal to >zero... >note that i was able to print the correct sequence numbers using the exact >same approach. >what am i doing wrong ? > >regards >
