Tuesday, July 20, 2010

CCNP - ENTERPRISE - Multicast -, where did that come from??

When you are configuring PIM in Sparse-Dense mode every router automatically subscribes to the Rendezvous Point Discovery group .

This why when you do #sh run you may have entries for:
ip igmp join-group
ip igmp join-group

But when you do  - #sh ip igmp groups
You acually get listed:
Group Address

Confusion cleared!

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