[ns] multiple rendezvous points

[Hahn Kim <hgk@umich.edu>]

I'm trying to define multiple rendezvous points using centralized
multicasting, but I don't quite understand the behavior I'm seeing.  If
I use a command that looks like the following:

$mrthandle set_c_rp $node1 $node2 $node3

Then any packets that are broadcast by a member of the group are sent to
only the last rendezvous point I defined, i.e. $node3, which forwards them
to the rest of the group.  $node1 and $node2 seem to be completely unused.
If I switch the order I define the rendezvous points, like so:

$mrthandle set_c_rp $node1 $node3 $node2

Then all packets are forwarded by $node2.  Can anyone explain to me what's
going on?  Thanks in advance.

Hahn