[ns] Session/RTP and traffic generators

[Hahn Kim <hgk@umich.edu>]

Hello fellow ns users,

I'm trying to simulate multicasted RTP using Session/RTP and I want to
generate RTP packets using the Exponential Traffic generator.

I've looked through the session-rtp.tcl code and it appears that it uses a
CBR traffic generator by default.  Is there a simple way to change this?
In other words, is there a command I can call to tell Session/RTP to use a
different traffic generator?  Thanks!

Hahn