Re: Regarding auto-rp in pim sparse-dense mode

After you have configured a mapping agent within your topology your router
also only selects 1 RP as the active one. So R5 will always show just 1 RP
and not 2.You are seeing the route now because of the dense-mode behavior.

--
Regards,
Rick Mur
CCIE2 #21946 (R&S / Service Provider)
Juniper JNCIA-ER & JNCIA-EX
MCSA:Messaging, MCSE
Sr. Support Engineer  IPexpert, Inc.
URL: http://www.IPexpert.com
On Fri, Aug 21, 2009 at 5:00 AM, Steve Lyons <charter21p5_at_gmail.com> wrote:
> You are missing your mapping agent configuration. When it is configured
> correctly you can use show ip pim rp mapping to see the rp mapping from
> auto-rp.
>
>
>
> Steve Lyons
>
> On Thu, Aug 20, 2009 at 10:57 PM, Steve Lyons <charter21p5_at_gmail.com>
> wrote:
>
> >
> >
> > On Thu, Aug 20, 2009 at 8:57 PM, peter ehiwe <ccie.in.nigeria_at_gmail.com
> >wrote:
> >
> >> HI Raghav,
> >> For auto-rp to work you need a mapping agent that is centrally located
> >> and from   the information provided it appears that the auto-rp MA is
> >> not configured.
> >>
> >> Also take note of the flags associated with the show ip mroute command
> >> output.
> >>
> >> HTH
> >>
> >> On 8/21/09, Raghav Bhargava <raghavbhargava12_at_gmail.com> wrote:
> >> > Hi experts,
> >> > My topology is something like this:-
> >> >
> >> > R5 <---FR----.> R2<---Fa0/0-----Fa0/0----> R6
> >> >
> >> >
> >> > Now lets say i select R2 and R6 to be configured as the RP's for the
> >> group
> >> > 224.1.1.1 and i configure this on both of them
> >> >
> >> > ip pim send-rp-announce lo0 scope 4 group-list 1 interval 30
> >> > access-list 1 permit 224.1.1.1
> >> >
> >> >
> >> > so now my question is that on R5 if i do :---> show ip mroute
> 224.1.1.1,
> >> it
> >> > shows only 1 group which is (2.2.2.2, 224.1.1.1) which is from R2 but
> >> not
> >> > the other one which is R6( 6.6.6.6, 224.1.1.1)
> >> >
> >> > If I check on R2, I can see both the Groups.I couldn't figure out what
> >> could
> >> > be wrong??
> >> >
> >> > Is there something that I am missing. Please advise
> >> >
> >> > BTW Pim sparse-dense mode is configured on all the interface's.
> >> >
> >> >
> >> > --
> >> > Warm Regards
> >> > Raghav
> >> >
> >> >
> >> > Blogs and organic groups at http://www.ccie.net
> >> >
> >> >
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> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >> >
> >>
> >>
> >> --
> >> Warm Regards
> >> Peter.
> >>
> >>
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> >>
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