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RE: IP Multicast Sparse Mode with RP Question posted 09/16/2001
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I would configure

1. RP discovery agent on r1
2. RP itself can be on r1 or r4, either way it should work. 

Devender Singh
BE(Hons), CCNP
IP Solution Specialist

-----Original Message-----
From: Paul Young [mailto:tsungdapaulyoung@xxxxxxxxx]
Sent: Sunday, 16 September 2001 3:30 
To: ccielab@xxxxxxxxxxxxxx
Subject: IP Multicast Sparse Mode with RP Question

When configuring IP Multicast with shared tree (Sparse
Mode) and RP where (which interface) should ip pim
sparse-dense-mode be configured and where (which
interface) should ip pim sparse-mode be configured?
Looking for best way to configure and reasoning behind
Let's assume the below scenario:

4 routers Hub & Spoke
R1's the Hub router over NBMA
R2 & R3 directly connected to R1 over NBMA
R4 connected to R2 via ethernet link

Also assume one loopback interface configured
on R1, R2, R3 and to join Multicast group


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