RE: Primary and backup RP in Multicast

From: Mike Kraus \(mikraus\) (mikraus@cisco.com)
Date: Wed Jul 04 2007 - 16:52:16 ART


For RP conflict resolution, longest-match prefix is used, if a tie then
highest IP address. For mapping agents, highest IP address is speaker.
So, if you have any RP-announce-filters or anything, you'll want to make
sure they are the same on all mapping agents.

See 3.2 from:
ftp://ftpeng.cisco.com/ipmulticast/specs/pim-autorp-spec01.txt

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Eric Dobyns
Sent: Wednesday, July 04, 2007 2:24 PM
To: ccielab@groupstudy.com
Subject: Primary and backup RP in Multicast

Multicast question I can't find an answer to.

 

Let's say you have sparse-dense mode turned on and you configure two
auto-rp's. How do you make one preferred over another
(primary/secondary)?



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