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Re: [ns] stopping nam trace output before simulation ends
On Fri, 10 Nov 2000, Haobo Yu wrote:
> ns does not have a facility that allows you to do it. However, since you
> can pipe nam trace you can do whatever you want with the traces on the
> fly. For instance, you can pipe it to a little awk script that does
> exactly the things you want.
Yes, but if you're only interested in all the traffic for a specific
time, yoyu have to record and discard the rest, and that adds to
simulation overhead. A way of being able to specify times of interest
for trace-all to record would be useful...
$ns at 10.0 "$ns trace-all on"
$ns at 20.0 "$ns trace-all off"
say. A quick C++ test of a boolean variable would be efficient...
L.
<[email protected]>PGP<http://www.ee.surrey.ac.uk/Personal/L.Wood/>