Re: [ns] tracing a flow

[Debojyoti Dutta <ddutta@ISI.EDU>]

One way is to use namtrace all and write a simple awk script to study the
dynamics of just one flow. eg if you want to study what happens between
node 1 and node 2 you can write

awk '$3=="1" && $4=="2" { action }' trace.tr > out

Please check the manual (chapter on TCP agents) to see how to trace cwnd_
for a particular TCP connection. 

Debo

On Wed, 11 Oct 2000 bsikdar@networks.ecse.rpi.edu wrote:

> 
> hi everyone,
> 	i have a simulation scenario with multiple flows going
> through a bottleneck link and I am interested in the dynamics
> of one particular flow. Instead of doing a "namtrace-all" which
> results in a large file and traces all flows, is there a way i
> can just trace a single flow?
> 
> 	also, is there any way to monitor the window size (cwnd)
> of a TCP flow? Thanks,
> 	
> 						Biplab
> 
> 
>