Error when adding LAR protocol in NS2

nubuntu · 09-28-2013, 10:31 AM

Hi there, I am a new ns2 user. Currently i am running ns-2.32 to simulate LAR protocol. Any body have an idea how to add CBR in LAR Protocol? And also how to analyze the trace file??
Thanks in Advance

knudfl · 10-02-2013, 11:19 AM

# 16, @nubuntu : Welcome to LQ.

CBR : $ cd lar-examples/

Code:

$ grep -i cbr *
ARP_TCP-box.tcl:Agent/CBR set sport_            0
ARP_TCP-box.tcl:Agent/CBR set dport_            0
box-Helen.tcl:Agent/CBR set sport_ 0
box-Helen.tcl:Agent/CBR set dport_ 0
box-org.tcl:Agent/CBR set sport_            0
box-org.tcl:Agent/CBR set dport_            0
cbr-3-test:set cbr_(0) [new Application/Traffic/CBR]
cbr-3-test:$cbr_(0) set packetSize_ 512
cbr-3-test:$cbr_(0) set interval_ 4.0
cbr-3-test:$cbr_(0) set random_ 1
cbr-3-test:$cbr_(0) set maxpkts_ 10000
cbr-3-test:$cbr_(0) attach-agent $udp_(0)
cbr-3-test:$ns_ at 127.93667922166023 "$cbr_(0) start"
Deolasi-box.tcl:Agent/CBR set sport_            0
Deolasi-box.tcl:Agent/CBR set dport_            0
mob.2:set cbr_(0) [new Application/Traffic/CBR]
mob.2:$cbr_(0) set packetSize_ 512
mob.2:$cbr_(0) set interval_ 4.0
mob.2:$cbr_(0) set random_ 1
mob.2:$cbr_(0) set maxpkts_ 10000
mob.2:$cbr_(0) attach-agent $udp_(0)
mob.2:$ns_ at 127.93667922166023 "$cbr_(0) start"
step.tcl:Agent/CBR set sport_            0
step.tcl:Agent/CBR set dport_            0
test.mob:set cbr_(0) [new Application/Traffic/CBR]
test.mob:$cbr_(0) set packetSize_ 512
test.mob:$cbr_(0) set interval_ 4.0
test.mob:$cbr_(0) set random_ 1
test.mob:$cbr_(0) set maxpkts_ 10000
test.mob:$cbr_(0) attach-agent $udp_(0)
test.mob:$ns_ at 127.93667922166023 "$cbr_(0) start"

... Which means that "cbr" is already present in the tcl scripts.

Analyzing trace files : Use an awk script / a perl script.
$ awk -f <script>.awk <file>.tr
Awk scripts : awk_scripts.07-2013.tar.gz
https://docs.google.com/file/d/0B7S2...it?usp=sharing

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sims2801 · 12-16-2014, 10:37 PM

i mailed to @billyfuad for sendData ,
I read all the material on this link "http://www.linuxquestions.org/questions/tags/lar/"
but didn't get any answer
Also, i want to use cbr over LAR , in "cbr-3-test" they have specified connection between nodes and sending of traffic but this file was not called in any of the tcl files present in lar-examples folder.
i tried to include cbr files in box.tcl and commented sendData lines , then it is shoing no error but in trace file no send data and all node statistics are zero.

another help how can i contact Dhaval Deolasi or Helen jameel. might they can answer my question as they are working on this.

plz help...

knudfl · 12-17-2014, 03:38 AM

← #18 .

``cbr-3-test´´ = mob.2 : used in dream_2.tcl, wpan_demo1__Dream2.tcl.

Contact : Try with a click on your name → Left column,
and select "Send email to sims2801".
..... The same for many other LQ members.

About http://www.linuxquestions.org/questi...s2-4175528436/
This will show where `sendData´ is defined :
$ cd ns-2.xx/ && grep -Rin sendData *
..... Seems to be mac/files.cc .

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sims2801 · 12-17-2014, 05:21 AM

when i click on the name (left side) their is no such kind of option "Send email to". sorry i am bothering you again for a small thing

sims2801 · 12-17-2014, 05:41 AM

their is no dream_2.tcl, wpan_demo1__Dream2.tcl in larexamples folder .
and in dream folder (patched with lar for ns-2.32), their is no such variable "cbr-3-test" or file name used.

knudfl · 12-17-2014, 06:43 AM

← #21 .

LAR + DREAM examples : lar+dream-examples-0714.tar.gz, #2 here
http://www.linuxquestions.org/questi...-4175508306/#2

* Be aware that the copy of cbr-3-test ( mob.2 )
is used only in the absence of a dedicated file.
I.e. cbr-3-test is a random choice.
A new file can be created with cbrgen.tcl, like this example :
$ ns cbrgen.tcl -type cbr -nn 20 -seed 1.0 -mc 8 -rate 4.0 >> file
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sims2801 · 12-17-2014, 09:14 PM

this what i am getting plz see the attached image
could you please ask helen and Dhaval Deolasi on my behalf . i asked @billyfuad but no reply.

"how we send data in lar / how we attach cbr agents on top of LAR "

cbr-3-test -- yes i know we can create the file with cbrgen utility but when i am trying to include with lar agents then all node statsitics are zero . there is no send data in trace file. also then i am confused what is the purpose of sendData . if sendData then where CBR to be used ? or if not ............... lots of confusion .

thanks for ur kind help

sims2801 · 12-18-2014, 10:02 PM

i have attached CBR traffic on top of LAR agents. now i have 3 options

1) without sendData and with CBR traffic on top of LAR ==> then .tr file, their is no LAR packets.

2) with sendData and without CBR traffic on top of LAR ==> thn in .tr file , there is no "s" packet , no AODV packets , only LAR packets

3) with sendData and with CBR traffic on top of LAR , there are LAR packets , AODV packets.

i want to compare with LAR and without LAR. I am not clear which option should i choose and suppose with sendData , then in sendData source and destination should be the same as source and destination used in CBR traffic.

kindly help. lots of thanks

Mellia · 04-28-2015, 01:01 AM

hi i want to patch LAR protocol in my ns-2.35. Is it possible?

knudfl · 04-28-2015, 04:15 AM

Re #25, @Mellia.

Yes, seems to work OK : LAR-dream__ns235.patch
https://drive.google.com/file/d/0B7S...ew?usp=sharing

* The patch is for a clean original ns-2.35 !
If you want want LAR + DREAM to live together with another added protocol, please ask.
ZRP ? ? We can then create a combined patch, or / and a patch to add to "zrp".

Note : You can have as many ns-allinone-2.35 as you want, installed at the same time.

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sims2801 · 04-28-2015, 10:05 PM

@Kundfl

can we have lar patch for ns-2.34 also ?
could you please share

knudfl · 04-29-2015, 01:01 AM

Re #27.

* ns-2.34 + {LAR, DREAM} : Patch 'toilers-lar-dream_ns234-1.patch' ( 16 Sept 2014 )
Link : https://drive.google.com/file/d/0B7S...ew?usp=sharing

pragathiy · 04-03-2016, 08:15 PM

Did anyone find how to attach the CBR traffic on top of LAR agents?
In case found please share it.

------------------------------------------------------------------------------------------

Quote:

Originally Posted by sims2801

i have attached CBR traffic on top of LAR agents. now i have 3 options

1) without sendData and with CBR traffic on top of LAR ==> then .tr file, their is no LAR packets.

2) with sendData and without CBR traffic on top of LAR ==> thn in .tr file , there is no "s" packet , no AODV packets , only LAR packets

3) with sendData and with CBR traffic on top of LAR , there are LAR packets , AODV packets.

i want to compare with LAR and without LAR. I am not clear which option should i choose and suppose with sendData , then in sendData source and destination should be the same as source and destination used in CBR traffic.

kindly help. lots of thanks