Re: PIM Interoperability issue

From: Chris Breece <cbreece1_at_gmail.com>
Date: Tue, 5 May 2009 20:09:37 -0400

I may be mistaken, but I believe that AutoRP is prefered to BSR (and static
RPs, without override specified).

Chris

On Tue, May 5, 2009 at 5:14 PM, Paul Cosgrove <paul.cosgrove_at_gmail.com>wrote:

> Hi Naman,
>
> A router running PIMv1 on its interface will not learn about the BSR
> advertised RP-set, but could still learn an RP from AutoRP. I would be more
> concerned about the behaviour of the PIMv2 routers in that scenario.
>
> If AutoRP and BSR cause the same RP to be advertised/selected, then things
> may be ok. If instead Auto RP and BSR are sending conflicting
> advertisements onto the subnet, which would a PIMv2 router prefer for a
> given group, or would its entry flap between the two possibilities? If
> PIMv2 routers prefer AutoRP, the election throughout the network should be
> consistent with the PIMv1 routers. If not, and different routers believe
> that different RPs are responsible for the same group, then things are
> likely to break.
>
> Running both on a network should be easy enough to lab, though it may not
> be supported and would be unnecessarily complicated for a live scenario (and
> perhaps too complicated for the lab). In real deployments many people
> prefer static RP configs and Anycast RP.
>
> Paul.
>
>
>
> naman sharma wrote:
>
>> Hi Experts,
>>
>> Auto-RP can run in both PIM Version 1 and Version 2. BSR is a Pim Version
>> 2
>> specification.
>>
>> Also it says that BSR mechanism interoperates with Auto-RP on Cisco
>> routers.
>> Does it interperates with Auto-RP Pim Version 1 or Version 2.
>>
>> thanks
>> Naman
>>
>>
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>
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Received on Tue May 05 2009 - 20:09:37 ART

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