From: Herbert Maosa (asawilunda@googlemail.com)
Date: Tue Oct 30 2007 - 13:30:46 ART
You are right Lim. The selection process presented by Hadek is used when BSR
is used as opposed to Auto-RP.
Herbert.
On 10/30/07, Toh Soon, Lim <tohsoon28@gmail.com> wrote:
>
> Hi Brian,
>
> Using my second method, I have verified it is actually functional using
> "sh
> ip pim rp-hash" command.
>
> Can I say that the simplest and straighforward solution is to define ACL
> on
> R5 to permit groups 224-238?
>
> By the way, can we use "deny" in the ACL for "ip pim send-rp-announce
> group-list" command? How does the mapping agent respond to it?
>
>
> Thank you.
>
> B.Rgds,
> Lim TS
>
>
> On 10/30/07, Brian McGahan <bmcgahan@internetworkexpert.com> wrote:
> >
> > Always choose the simplest solution. Unless the question says that r5
> > should never service that group range your answer is correct. You
> > would however want to look at the show ip pim rp mapping output to
> > make sure that your answer is actually functional.
> >
> > HTH,
> >
> > Brian McGahan, CCIE #8593 (R&S/SP/Security)
> > bmcgahan@internetworkexpert.com
> >
> > Internetwork Expert, Inc.
> > http://www.internetworkexpert.com
> >
> > On Oct 30, 2007, at 8:51 AM, "Toh Soon, Lim" <tohsoon28@gmail.com>
> > wrote:
> >
> > > Hi Group,
> > >
> > > I have the following Auto-RP scenario:
> > >
> > > R7
> > > --
> > > 1. C-RP for 239.0.0.0/8
> > > 2. RP address 200.0.0.7
> > >
> > > R5
> > > --
> > > 1. Mapping agent
> > > 2. C-RP for all groups except 239.0.0.0/8
> > > 3. RP address 200.0.0.5
> > >
> > > I guess one way of configuring this is, we define an ACL on R5 that
> > > matches
> > > groups 224 until 238 (summarizing whatever we can) and let R5
> > > announce this
> > > group-list.
> > >
> > > Another way I'm thinking of is, since R7's IP address is higher than
> > > R5's, I
> > > will configure R5 to announce, by default, all groups. When R5 and R7
> > > contend for group 239.0.0.0/8, R7 will win. R5 will be RP for the
> > > rest of
> > > the groups. In the end, this solution meets the task requirement and
> > > does
> > > not violate any rules but is it acceptable?
> > >
> > > Please share if you have other methods.
> > >
> > >
> > > Thank you.
> > >
> > > B.Rgds,
> > > Lim TS
> > >
> > >
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> >
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