RE: Auto RP on two router in a multicast network

Just remember that the winner of the RP election is made independantly at each
mapping agent. This means that if you have some sort of multicast filtering
enabled (or connectivity issues) and one of the mapping agents doesn't receive
the 224.0.1.39 traffic, there maybe a conflict of RPs for that group. It's a
good thing to be able to troubleshoot quickly ;)
Thanks,

Jacob Uecker
CCIE# 24481

Development Engineer
CCBOOTCAMP - Cisco Learning Partner (CLP)
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________________________________

From: nobody_at_groupstudy.com on behalf of Con Spathas
Sent: Mon 8/10/2009 12:02 PM
To: CC IE
Cc: ccielab_at_groupstudy.com
Subject: Re: Auto RP on two router in a multicast network

The mapping agent will select the highest IP and use this to notify
multicast enabled routers on the network which RP to use for whichever
group or groups are configured.

On Mon, Aug 10, 2009 at 7:45 PM, CC IE<cciestriker_at_gmail.com> wrote:
> hi
>
> if two multicast router in a multicast network are configured for auto RP
> for same Mulicast group. who will become the RP for the group
> if both routers have same config onlu loop0 ip is differecnt.
>
> ip pim send-rp-announce Loopback0 scope 16 group-list 1
>
> ip pim send-rp-discovery Loopback1 scope 16
>
> access-list 1 permit host 224.20.20.20
>
>
> is it based on the highest loopback ip. or am i missing some thing
>
>
> regards
>
>
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Received on Mon Aug 10 2009 - 20:56:03 ART