From: Bob Sinclair (bob@bobsinclair.net)
Date: Wed Nov 22 2006 - 15:21:14 ART
Nisha,
Perhaps you are thinking of Anycast RP as an RP failover method. In Anycast
multiple RPs have the same IP address, and routers use the nearest one.
MSDP is used to make sure all RPs know about all active sources.
How you advertise the RP address is a separate issue. Using Anycast the
address can be "advertised" statically, via Auto-RP or via BSR.
Here is an example of an Anycast setup, using address 1.1.1.1 as the RP
address:
ip msdp peer 172.16.104.1 connect-source loop101 (on R1)
ip msdp peer 172.16.101.1 connect-source loop104 (on R4)
Advertise 1.1.1.1/32 into the routing protocol from both R1 and R4 and use
one of the techniques above to tell all that 1.1.1.1 is the RP
HTH,
Bob Sinclair
CCIE 10427 CCSI 30427
www.netmasterclass.net
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
nisha rani
Sent: Wednesday, November 22, 2006 11:48 AM
To: ccie anees
Cc: Cisco certification
Subject: Re: Backup for RP in multicasting
You are right in the sense that you configure both auto rp and static rp and
when autorp fails static rp takes over. But my question is configuring
backup RP without having it to fall back to static RP. I think it's done via
MSDP, just reading up a little bit on Cisco site. Will let you know if i
have more info.
Thanks
Nisha
On 22/11/06, ccie anees <ccieanees@yahoo.com> wrote:
>
> I am not sure about the Backup RP. But I have an idea:
>
> Configure the primary RP using auto-rp. and configure the backup RP
> statically.
> Dynamic RP will override the static RP. If the primary RP fails, static RP
> (which is the backup RP) will take over. Not sure I am correct...
>
> *nisha rani <nisharani1@googlemail.com>* wrote:
>
> Anyone can provide link for configuring backup RP?
>
> Thanks
> Nisha
>
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