Re: [ns] wireless ping broadcast questions
Hi Faisal,
I wasn't aware of any other settings besides the IP_BROADCAST. Which ones
are you referring to?
Kathy
_
From: Faisal Siddiqui [mailto:[EMAIL PROTECTED]
Sent: Thursday, May 11, 2006 7:40 PM
To: [EMAIL PROTECTED]
Cc: ns-users@isi.edu
Subject: Re: [ns] wireless ping broadcast questions
Hi Kathy,
Are you properly enabling/setting multicast protocol settings in your Tcl
script for the simulation? I think this error screams about that setting.
- Faisal
On 5/11/06, [EMAIL PROTECTED] <[EMAIL PROTECTED] > wrote:
Hi,
I was messing around with the ping agent from Marc Greis' Tutorial, and
wanted to change the ping to a broadcast. I added the IP header stuff as
I've seen elsewhere online,
hdr_ip *ip = hdr_ip::access(pkt);
ip->daddr() = IP_BROADCAST;
and now I get this error:
-- Classfier::no-slot{} default handler (tcl/lib/ns-lib.tcl) ---
_o996: no target for slot -1
_o996 type: Classifier/Port
content dump:
classifier _o996
0 offset
0 shift
2147483647 mask
2 slots
slot 0: _o (Agent/Ping)
slot 255: _o983 (Agent/DSDV)
I can't find out how to fix it and I don't know anything about Classifiers.
I realize that there was no port assigned to Ping, but how do I fix this?
My other question is, do I have to use an IP_Broadcast? Can I just use a
MAC_BROADCAST?
Kathy
Re: [ns] ns routing algorithms understanding
Hi, I have been modifying NS2 over the last several weeks to suit my simulation requirements. I agree with your comment that adding any sort of new features results in a lot of unknown errors owing to the not so clear documentation available. I now just modify the existing methods in order to avoid hassle of searching places where should I include neccessaty snippets of code to build my simulator. - Faisal On 5/10/06, Augusto Castelan Carlson <[EMAIL PROTECTED]> wrote: > > > Hi! > > I'm reading _The ns Manual_. When they talk about routing in chapter 28, > it says > that Static and Session routing use Dijkstra, and that Dynamic routing > uses > Bellman-Ford. > > Where are these algorithms implemented and refered in the ns source? > > I tryed to find them without success. I made a research in the mailing > list > archives, but found nothing helpful. > > I'm interested to have a good understanding of the already implemented > algorithms and manipulate them. With this understanding I can become > familiar > with ns source code and implement my own algorithm and maybe, my own > protocol. > I also have read the FAQ, Marc's tutorial and the document "Implementing a > New > Manet Unicast Routing Protocol in NS2", but when I compile the source > files, I > get many errors. As I'm interested in tradicional routing, I'm a little > bit > distrustful to become confused with tradicional routing and wireless > routing. > > Thank you very much in advance. > > Cheers, > > Augusto > > > This message was sent using IMP, the Internet Messaging Program. > >
Re: [ns] wireless ping broadcast questions
Hi Kathy,
Are you properly enabling/setting multicast protocol settings in your Tcl
script for the simulation? I think this error screams about that setting.
- Faisal
On 5/11/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
>
> Hi,
>
> I was messing around with the ping agent from Marc Greis' Tutorial, and
> wanted to change the ping to a broadcast. I added the IP header stuff as
> I've seen elsewhere online,
>
> hdr_ip *ip = hdr_ip::access(pkt);
> ip->daddr() = IP_BROADCAST;
>
> and now I get this error:
>
> -- Classfier::no-slot{} default handler (tcl/lib/ns-lib.tcl) ---
> _o996: no target for slot -1
> _o996 type: Classifier/Port
> content dump:
> classifier _o996
> 0 offset
> 0 shift
> 2147483647 mask
> 2 slots
> slot 0: _o (Agent/Ping)
> slot 255: _o983 (Agent/DSDV)
>
> I can't find out how to fix it and I don't know anything about
> Classifiers. I realize that there was no port assigned to Ping, but how do
> I fix this?
>
> My other question is, do I have to use an IP_Broadcast? Can I just use a
> MAC_BROADCAST?
>
> Kathy
>
>
>
>
>
[ns] trace file question
Is there an easy way to get the TCP "reason" field from the header into the trace file? I'd like an easy way to pick out timeouts and fast rtx's. Thanks, ~Ethan
[ns] wireless ping broadcast questions
Hi,
I was messing around with the ping agent from Marc Greis' Tutorial, and wanted
to change the ping to a broadcast. I added the IP header stuff as I've seen
elsewhere online,
hdr_ip *ip = hdr_ip::access(pkt);
ip->daddr() = IP_BROADCAST;
and now I get this error:
-- Classfier::no-slot{} default handler (tcl/lib/ns-lib.tcl) ---
_o996: no target for slot -1
_o996 type: Classifier/Port
content dump:
classifier _o996
0 offset
0 shift
2147483647 mask
2 slots
slot 0: _o (Agent/Ping)
slot 255: _o983 (Agent/DSDV)
I can't find out how to fix it and I don't know anything about Classifiers. I
realize that there was no port assigned to Ping, but how do I fix this?
My other question is, do I have to use an IP_Broadcast? Can I just use a
MAC_BROADCAST?
Kathy
[ns] TwoRayGround Propagation
-- Hi! Can some body tell me how can I change TwoRayGround propagation value in ns-2? thanks
[ns] windowsize & make ns2
Hi all, I want to change windowsize (tcl/lib/ns-default.tcl) tcp window size_ . After changing the variable value in the ns-default.tcl , i still get the same trace window size values. BUT when i do ( make clean & then make ) , the trace window size value changes. Should i do this everytime , is there a quicker way ( i even tried /make depend)? - New Yahoo! Messenger with Voice. Call regular phones from your PC and save big.
[ns] How to create VBR traffic source
Hi! How do I create a VBR traffic source??? Ritwik Mitra M.Sc. Computer Science Department of Computer Science, Delhi University - Yahoo! Messenger with Voice. Make PC-to-Phone Calls to the US (and 30+ countries) for 2¢/min or less.
[ns] please urgent help on implementing a mobility model on NS
hi all sorry but i still have the same problem. i have a c++ code of a mobility model of ad hoc networks that i must implement on NS but i really do not know how to do. if there is any one who could help me i would really be greatefull. thank you in advance. _ MSN Hotmail : créez votre adresse e-mail gratuite & à vie ! http://www.msn.fr/newhotmail/Default.asp?Ath=f
[ns] please urgent help on implementing a mobility model on NS
hi all sorry but i still have the same problem. i have a c++ code of a mobility model of ad hoc networks that i must implement on NS but i really do not know how to do. if there is any one who could help me i would really be greatefull. thank you in advance. _ MSN Hotmail sur i-mode : envoyez et recevez des e-mails depuis votre téléphone portable ! http://www.msn.fr/hotmailimode/
Re: [ns] researches on ad hoc
Hi Guzin Ulutas,
I have tried for the protoname example, but the error as below is appeared on
screen when i run the tcl script. Please advice.
[code omitted because of lenght]
:wrong # args: should be {Simulator instproc name args body}
(class instproc line 1)
invoked from within
"simulator instproc create-protoname-agent {node }
Thanks.
Best regards,
Choong Wing Cheong
Güzin UlutaŠ<[EMAIL PROTECTED]> wrote:
Hi Cemal,
I can suggest you something that I learned. First of all, you must
understand what is the interaction between the otcl and c++. When you
use which of one. And then "implementing a new manet routing protocol
" is a good
tutorial. This tutorial suggest you, some chapters from ns manual that
must be read before reading this document. I think, you must observe
dsdv and aodv codes. First of all, it can be hard for you, but you must
be patient. Have a good luck.
Guzin Ulutas (CEng)
__
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[ns] Is there any thing about Cellular Ne tworks ?
Hello All I'm working on the ns-2.29. Already installed it on my platform and now testing example tcl scripts that are included(/tcl/ex). Ns documantation and other tutorials help me understand the simulator and its possible opportunities. Now I've got a subject on Cellular Networks. Theoreticaly i've learned thouroughly my subject and now i'm gonna develpoe simulations on the ns-2.29. I need some guidelines from other researches who expierence the same subject. Thanks in advance.
Re: [ns] Makefile:73: *** missing separator. Stop
Hi Wajid, This seems to be a syntax error in your Makefile. The right syntax is: target: dep1 dep2 command These lines mean that "if dep1 or dep2 files are newer than target file (or if he does not exist), then Make should regenerate the target by running the command". If no command has been provide, a default rule will be used. The tabulation before the command is not a fantasy and is rather mandatory. Double check this point. This Make singularity often involves errors. For further information, you can check on the web for Makefile syntax. You can start with this page http://sourceware.org/autobook/autobook/autobook_20.html and continue with this one: http://cprogramming.com/tutorial/makefiles.html Regards, Benjamin -Message d'origine- De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de wajid mehmood Envoyé : mercredi 10 mai 2006 22:00 À : ns-users@ISI.EDU Objet : [ns] Makefile:73: *** missing separator. Stop Hi ns users, I am using edca model of tu berlin to check the QOS .But i am facing some problems in installing this package .The problem is when i follow the installation steps of EDCA model ,then at make clean and make depend commands, i get the following error. Makefile:73: *** missing separator. Stop. If anybody knows the solution .please do inform. thanks in advance wajid - Yahoo! 360° NEW - Your one place to blog, create, publish & share!
Re: [ns] [Ns-developers] FECModel in ns2.29 problems(please let us solve this problem)
[EMAIL PROTECTED] wrote:
> Dear sirs,
>
> the ns-manual says in page number 50 that "Table 5.1: Available options for
> node
> configuration (see tcl/lib/ns-lib.tcl)". I went to this file and found that
> there is FECProc option like the IncommingErrProc option.
>
> when I inserted the the FECmodel in my simulation using the following code:
> #
> proc FECproc1 {} {
> FECModel set FECstrength_ 2
> set FEC1 [new FECModel]
> return $FEC1
> }
> $ns_ node-config -adhocRouting $opt(adhocRouting) \
> -llType $opt(ll) \
> -macType $opt(mac) \
> -ifqType $opt(ifq) \
> -ifqLen $opt(ifqlen) \
> -antType $opt(ant) \
> -propType $opt(prop) \
> -phyType $opt(netif) \
> -channelType $opt(chan) \
>-topoInstance $topo \
> -wiredRouting ON \
>-agentTrace OFF \
> -routerTrace OFF \
> -macTrace OFF
> -IncomingErrProc MultistateErrorProc
>-FECProc FECproc1
> #
> I got the following error:
>
> [EMAIL PROTECTED] ~
> $ ns errort.tcl
> num_nodes is set 2
> warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl
> invalid command name "-FECProc"
> while executing
> "-FECProc FECproc1"
> (file "errort.tcl" line 124)
>
> it works fine with the error model but does not work with FEC model.
>
> really, it is critical for my simulation and looking forward to receive from
> ASAP.
> thank you in advance
> regards
>
>
There is a syntax error in your node-config command-- there should be a
"\" after each $cmd $val pair. You forgot to add these when you
extended the command.
Tom
