[ns] trace help

[jeyandran venugopal <jvenugop@students.uiuc.edu>]

Hi,
   I have a ns trace file from an adhoc network simulation..I want to
create plots out of it like time vs sequence number and time vs RTT of
packets  which were acked after a single transmission etc..I am using the
old trace format..I need some advice on this..
If I don`t care to trace how the nodes move, I need not write a nam
file..right? Is there any other use for a nam file for wireless?
Can I use a trace object or a flow monitor or are they relevant only for
wired links?..

I can see the packets being sent and received in the trace file
generated..I am thinking of writing perl scripts to generate the data I
want out of these scripts and then use gnuplot to do the plotting..Is
there a better/easier way and are there ready made scripts available to do
this sort of thing? If so, where can I get them?
Finally, is it better to use the old trace format or the new one..Seems to
me like the new format will take a lot of space to write out the same
data..Also, if people have scripts written for the old trace format, it
might have to be changed if I use the new trace format..Any
comments/advice on this is welcome..


Thanks a lot for your time..

Jeyandran

On Wed, 4 Oct 2000, Mattos, Leonardo wrote:

> Hi all,
> 
> Does anyone have a script to post process the CMU trace files in order to
> obtain ete delay?
> I have done packet delivery fraction, throughput, routing load etc...but I
> am not sure my results for ete delay are good.
> 
> Thanks in advance!
> Leo
>