Problems with flowmonitor

[Mauro Vidotto]

Hi all,

I was working on a topology to test tcp congestion control variants when I got the following error related to flowmonitor when running it:

assert failed. cond="tagFound", msg="FlowProbeTag is missing", file=../src/contrib/flow-monitor/model/ipv4-flow-probe.cc, line=328
terminate called without an active exception
Command ['/home/mauro/repos/ns-allinone-3.10/ns-3.10/build/debug/scratch/sbs4.test', '--tcpModel=ns3::TcpNewReno', '--nCsma=10'] terminated with signal SIGIOT. Run it under a debugger to get more information (./waf --run <program> --command-template="gdb --args %s <args>").

The topology that was created is the following:

               192.168.0.0                        192.168.1.0                  192.168.2.0
 n0 - nN ============== n2N+1 ----------------  n2N+2 ==============  nN - n2N
                       lan                          point-to-point                        lan

The number of csma nodes is varied depending on the argument passed. For some values ( up to 8) the error does not ocure. If the number of node is setted above 8 the error appears. As far i could see the error produces when an ARP package is dropped due to buffer overflow. Are ARP packages tagged or untagged by the flowmonitor?
I searched on the email list and could not find information about this error.

How can I solve this problem for a large number of csma nodes?

Attached is the topology I created. I am using ns3-10.

Regards
Mauro Vidotto

[Mauro Vidotto]

Any suggestions about this problem?

[Arun IB]

I am also getting the same error while working with csma nodes . When the number nodes is 10, its showing this error. For nodes upto 9, its no error.

assert failed. cond="tagFound", msg="FlowProbeTag is missing", file=../src/flow-monitor/model/ipv4-flow-probe.cc, line=333
Command ['/home/ib/repos/ns-3-allinone/ns-3-dev/build/scratch/aib_wifi_mac'] terminated with signal SIGSEGV. Run it under a debugger to get more information (./waf --run <program> --command-template="gdb --args %s <args>").

So is it a bug?  I am using ns-3.12.1

[Mauro Vidotto]

Hi,

No idea if it is a bug or not... i could see that in my case this error produces when an ARP package is dropped at some intermediate node because of the droptail queue policy.

Regards
Mauro Vidotto

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[Gustavo Carneiro]

I created a bug report and attached your source file.  I'll fix it when I have a chance, assuming it's just run with no arguments, otherwise let me know which command-line arguments I should use.

 

Regards
Mauro Vidotto

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INESC Porto, UTM, WiN, http://win.inescporto.pt/gjc
"The universe is always one step beyond logic." -- Frank Herbert

[Mauro Vidotto]

Hi Gustavo,

Use the following line (argumentts) to reproduce the error:

./waf --run "scratch/sbs4.test --tcpModel=ns3::TcpNewReno --nCsma=10"

Regards
Mauro Vidotto

[ashok kumar]

Hi
I too getting the similar error. Are there any ways to get away with this error.
Please help

[Dmitry Zvikhachevskiy]

I got the same problem for my script

Waf: Entering directory `/home/dmitry/lena/build'
[ 748/1902] cxx: scratch/lena.cc -> build/scratch/lena.cc.14.o
[1895/1902] cxxprogram: build/scratch/lena.cc.14.o -> build/scratch/lena
Waf: Leaving directory `/home/dmitry/lena/build'
'build' finished successfully (5.952s)
Command ['/home/dmitry/lena/build/

scratch/lena'] terminated with signal SIGSEGV. Run it under a debugger to get more information (./waf --run <program> --command-template="gdb --args %s <args>").

what i need to do?

воскресенье, 2 октября 2011 г., 19:15:17 UTC пользователь Mauro Vidotto написал:

[Victor]

Hello,

I'm getting the same error:

assert failed. cond="tagFound", msg="FlowProbeTag is missing", file=../src/flow-monitor/model/ipv4-flow-probe.cc, line=329

For me it also works up to 9 nodes, but once I try 10 nodes, the above error occurs.

Just wondering if there is a way around this or if it has been fixed.

Thank you,

Victor


2013年2月7日木曜日 9時10分21秒 UTC Dmitry Zvikhachevskiy: