ip pim sparse on loopback?

Unanswered Question
Oct 2nd, 2009

Is there any reason why you need to enable ip pim sparse-mode on a loopback address? even if you point the RP to the loopback?

I have this problem too.
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Giuseppe Larosa Fri, 10/02/2009 - 12:31

Hello Jeffrey,

when using auto RP, the mapping agent needs ip pim sparse-mode on its loopback interface to process advertisements from candidate RPs.

This is the only strict requirement I'm aware of.

Hope to help

Giuseppe

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