Multicast Flow - IE Advanced Technology Labs - PIM Dense Mode

From: Mohamed Saeed (mohamed_saeed2@rayacorp.com)
Date: Tue Sep 26 2006 - 08:40:08 ART


Hi All,

PIM dense mode multicast was presented on one of the IE Advanced
Technology Labs. The setup consists of a switch simulating a multicast
sender (implemented by RTR), another switch simulating multicast
receiver (implemented by enforcing the switch interface to join the
multicast group) and a cloud of intermediate routers.

Every thing is going fine with me in this setup. The multicast tree is
built normally and I was able to apply all the tests on this lab. What I
am asking about is that how I could test that the multicast traffic is
moving normally from the source to the receiver.

Using "debug ip packet" on the sending switch, I was able to see
multicast packets sourced from the switch outgoing interface and
destined to the multicast group. Using "debug ip packet" on the
receiving switch, I did not see the multicast packets received. Also on
any intermediate router in the tree I could not see the multicast feed
flowing.

However, when I ping the multicast group address from the source switch,
I could see the receiving switch replies.

Am I doing something wrong here in this test? Have anyone other testing
method?

Regards

Mohamed Saeed, CCNP - CCIP



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