All things related to multicast

["Michael H. Lambert" <>]

A call for help...

I'm trying to get multicast "to work" on with a host directly attached to a 
fast ethernet port on a Juniper M40 running JUNOS 5.6R1.3.  The host is 
running Windows XP Professional.

I'll just focus on the beacon group, 233.2.171.1.  The host IP is 
192.88.115.114.

In our "default" configuration, "show multicast route group 233.2.171.1" 
shows this (S,G) in a pruned state.  If I add static igmp group membership 
for 233.2.171.1 to the interface, I now see the (S,G) in a forwarding 
state.  However, our upstream 12008 does not see an mroute entry for the 
(S,G).  The host does show up on the beacon page as receiving other beacons 
(but nothing hears it).  The RPF checks are as they should be (some manual 
configuration was necessary, or at least sufficient).

My first hunch is that MSDP is not announcing the (S,G) from the Juniper to 
the Cisco.  Does this sound plausible, and, if so, how do I fix it?  And is 
there some magic configuration piece I'm missing?  I don't like the idea of 
having to do static configuration.

Thanks,

Michael

+-----------------------------------------------------------------------+
| Michael H. Lambert, Network Engineer           Phone: +1 412 268-4960 |
| Pittsburgh Supercomputing Center               FAX:   +1 412 268-8200 |
| 4400 Fifth Avenue, Pittsburgh, PA  15213       

        |
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