snoop equivalent for AIX

is there a snoop equivalent in other flavors of unix? for AIX IBM

From: http://sunportal.sunmanagers.org/pipermail/summaries/2001-November/000211.html

"Originally:

I've got to do some network tracing with one of our clients. I'm using snoop
at our end. Is there a direct equivalent for AIX? They have RS6000s at the
other end.

Thanks go to Daniel Wilkinson. The answer is IPtrace."