[ns] Multicast question

[Aaron D Striegel <adstrieg@iastate.edu>]

I am trying to port my code from v6 to v7 but I am having some 
difficulties.  The
problem I have is in the following function:

Simulator instproc mrtproto { mproto { nodelist "" } } {

The problem that I get is when I try to use any of my multicast files or any of
the sample multicast files for that matter, I get an error that switch_ is
not defined. However, I was able to find this from the 2.1b7 change log:

- Multicast code is partially converted, in that the hookup of switch_ is 
done via RtModule/Mcast, however, existing mcast code is not changed to be 
wrapped entired in this module; it is still in the forms of a bunch of 
Simulator and Node instprocs

How do I do this?  Previously this was taken care of but I am not sure of the
linkage from either C or tcl to actually correctly call this function for 
each node.
Any assistance would be appreciated.

Aaron

--------------------------------------------
Aaron Striegel
Ph.D. Candidate, Computer Engineering
Iowa State University
http://www.public.iastate.edu/~magico