Re: BSR RP Election , which RP wins?

From: Narbik Kocharians (narbikk@gmail.com)
Date: Sun Jun 24 2007 - 01:21:47 ART

Eric,

I don't know where in the documentation it states that higher value has a
better priority, but this is how it goes:
Cisco routers are NOT compatible to RFC 2362 and they typically ignore the
Priority value all together if one of the RPs is advertising a longer group
prefix, if the prefix length is identical then, they will go based on the
Priority, in which case the RP with the highest priority (*The lowest value*)
wins. I guess when you say highest priority, you actually mean the lowest
value.

http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/himc_c/chap05/mcbbasic.htm#wp1139318

On 6/23/07, Eric Poulin <epoulins@yahoo.com> wrote:
>
> The previous link I sent was not clear. Here's another one:
>
>
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr_c/ipcpt3/1cfmulti.htm
>
> To avoid a single point of failure, you can configure several candidate
> BSRs in a PIM
> domain. A BSR is elected among the candidate BSRs automatically; they use
> bootstrap
> messages to discover which BSR has the highest priority.
>
> The candidate RPs follow the same election process.
>
> --- Eric Poulin <epoulins@yahoo.com> wrote:
>
> > The highest priority wins the election.
> >
> > http://www.cisco.com/warp/public/105/57.html
> >
> > --- Narbik Kocharians <narbikk@gmail.com> wrote:
> >
> > > Lower priority wins the election.
> > >
> > > On 6/23/07, louis john <west_coast@inbox.com> wrote:
> > > >
> > > > Hi,
> > > >
> > > >
> > > > Is the lower priority RP wins or the higher one ?
> > > >
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> > > --
> > > Narbik Kocharians
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> > > CCSI# 30832
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-- 
Narbik Kocharians
CCIE# 12410 (R&S, SP, Security)
CCSI# 30832

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