From: Salau, Yemi (yemi.salau@siemens.com)
Date: Mon Sep 10 2007 - 06:20:00 ART
Hello Dan,
Why can't Backup Rp be done with auto-rp? Without modifying the IP
Address of both RPs, I don't think BSR is the only way to go, also I
would be surprised if asked to configure BSR in a Cisco environment,
from the way things are going, Cisco is pushing the Auto-rp
implementation into the market more and more.
Remember when a PIM device receive 2 entries of RP information for same
group, it sticks (prefers) with the one from auto-rp over static-rp
information.
So in case you have R1 and R2 with loopback Ips of 1.1.1.1 and 2.2.2.2
respectively, if I want to make R1 the RP, I could do with a combination
of static and auto-rp without reconfiguring R1's IP
I would simply advertise R1 as RP for group X via auto-rp and advertise
R2 as RP for same group X via static-rp .... That way, pim routers will
always prefer R1 over R2 even though R1 has a lower IP address.... So if
the R1 is unreachable, they then switch to R2
Many Thanks
Yemi Salau
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Dan C
Sent: Monday, September 10, 2007 7:09 AM
To: Carlos Trujillo Jimenez
Cc: joe@affirmedsystems.com; jkoh.tt@hotmail.com; ccielab@groupstudy.com
Subject: Re: Multicast - Backup
Hi Carlos,
Can not be done using auto-rp, you will need to use BSR.
Cheers,
Dan
On 9/10/07, Carlos Trujillo Jimenez <nergal888@hotmail.com> wrote:
>
> Joe.
> from the example above, is there a way to manually force the router
> 1.1.1.1
> (lowest ip address) to be the active RP withouth modifyng ip
addressing in
> both routers??
>
>
>
> >From: "Joseph Brunner" <joe@affirmedsystems.com>
>
> >X-OriginalArrivalTime: 10 Sep 2007 05:41:23.0527 (UTC)
> >FILETIME=[38EB2D70:01C7F36D]
> >
> >Easy, Beavis...
> >
> >You didn't say we can't use AUTO RP...
> >
> >Ip pim autorp listener (read up on this command)
> >
> >Auto-rp mapping agent uses highest IP's to decide winner.
> >
> >3.3.3.3 beats 1.1.1.1. when 3.3.3.3 is gone, 1.1.1.1 will be rp.
> >
> >-J
> >
> >-----Original Message-----
> >From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> >Jeff
> >Koh
> >Sent: Sunday, September 09, 2007 11:58 PM
> >To: ccielab@groupstudy.com
> >Subject: Multicast - Backup
> >
> >Hi Guys,
> >
> >How do we come up with the following scenario?
> >
> >- Use PIM Sparse mode only.
> >- R3 (loopback: 3.3.3.3) backup of R1 (loopback:1.1.1.1)
> >- No static RP.
> >- No BSR.
> >
> >How do we set up a redundant RP base on the above requirement?
> >
> >thanks!
> >
> >cheers,
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