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Re: changes in tcp trace behavior
TCP tracing now uses the TracedVar stuff implemented by Giao
Nguyen. So to trace a variable (including TCP variables),
you need to do the following in Tcl:
$agent trace <variable-name>
For example, $tcp trace cwnd_
You need to do this for each variable that you wish to trace.
In addition, to attach a trace file, do the following:
$tcp attach [open trace.tr w]
-Venkat
> >
> >>From larse Sat Aug 2 17:01:27 1997
> >Subject: TCP trace broken
> >To: [email protected]
> >Date: Sat, 2 Aug 1997 17:01:27 -0700 (PDT)
> >X-Mailer: ELM [version 2.4 PL25]
> >Content-Type: text
> >Content-Length: 870
> >
> >Hi,
> >
> >under ns-2.0a17, one could do "$tcp trace [open trace.tr w]" and get
> >a trace of all relevant TCB fields over time. Under ns-2.0b17 (and the
> >latest snapshot) this no longer works. "trace.tr" is being created, but is
> >empty. It seems that TCP_TRACE_ALL is gone from tcp.h. (Thanks to Ted
> >Faber for noticing this.)
> >
> >