RE: Auto-RP : Multiple C-RPs for the same group

From: hadek.el-ayachi@nsn.com
Date: Tue Oct 30 2007 - 11:14:11 ART

The task is to make R5 RP for all but 239/8, so you should use selective
acl denying 239/8.
Otherwise, the RP is selected based on longest match (before prefering
low priority, high hash or high IP address)
All that I know!
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
ext Toh Soon, Lim
Sent: mardi 30 octobre 2007 13:51
To: ccielab@groupstudy.com
Subject: Auto-RP : Multiple C-RPs for the same group

Hi Group,

I have the following Auto-RP scenario:

R7 

--
1. C-RP for 239.0.0.0/8
2. RP address 200.0.0.7

R5
--
1. Mapping agent
2. C-RP for all groups except 239.0.0.0/8 3. RP address 200.0.0.5

I guess one way of configuring this is, we define an ACL on R5 that
matches groups 224 until 238 (summarizing whatever we can) and let R5
announce this group-list.

Another way I'm thinking of is, since R7's IP address is higher than
R5's, I will configure R5 to announce, by default, all groups. When R5
and R7 contend for group 239.0.0.0/8, R7 will win. R5 will be RP for the
rest of the groups. In the end, this solution meets the task requirement
and does not violate any rules but is it acceptable?

Please share if you have other methods.

Thank you.

B.Rgds,
Lim TS

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