From: Aamir Aziz (aamiraz77@gmail.com)
Date: Wed Jun 14 2006 - 14:24:04 ART
hi there
well i wil try the debug command, my rack time is over now so tom i guess,
anyway thanks for the reply i will debug and see what happens.
thanks
aamir
On 6/14/06, Bob Sinclair <bsinclair@netmasterclass.net> wrote:
>
>
> Aamir,
>
> I am not familiar with that particular lab, but, in general, if the
> downstream router B knows the RP address, and his path to that RP is through
> the router A in question, and that router B has a downstream client, then
> that router B should send a join, and the interface that received the join
> on router A should be on the OILIST.
>
> I would try some debugs to figure out if the downstream router is sending
> joins upstream. For example: debug ip pim 228.28.28.28 or debug ip
> igmp.
>
> I would suspect no downstream client. How are you simulating the client?
> If it is ip igmp join-group on a loopback, make sure you have PIM on that
> loopback.
>
>
> Bob Sinclair
> CCIE #10427, CCSI 30427
> www.netmasterclass.net
>
>
> ----- Original Message -----
> *From:* Aamir Aziz <aamiraz77@gmail.com>
> *To:* Bob Sinclair <bsinclair@netmasterclass.net>
> *Cc:* ccielab@groupstudy.com
> *Sent:* Wednesday, June 14, 2006 12:54 PM
> *Subject:* Re: Multicast question
>
>
> hi there
>
> i am basically doing IE vol1 lab 2 task, the interfaces are configured as
> Sparse mode with ip pim rp address command so when i do the show ip pim rp
> mapping, it shows me RP mapping meaning it can reach RP so what to do,
> which
> command to give on this router to check this problem?
>
> thanks
> Aamir
>
>
> On 6/14/06, Bob Sinclair <bsinclair@netmasterclass.net> wrote:
> >
> > Hi Aamir,
> >
> > If your outgoing interface list is null, then I would first ask whether
> > the group is being destributed in Dense Mode or in Sparse Mode. You can
> > easily tell by looking for the D or S flag on the the of the first line
> of
> > the (*,G) entry.
> >
> > If you are doing Dense Mode and the OILIST is null, then that means you
> > have no PIM neighbors and you have no connected clients. Check your
> > configuration: for example, show ip pim neighbors.
> >
> > If you are doing Sparse Mode and your OILIST is null, then it means you
> > have not recieved an IGMP or PIM join on any interface. Check that
> > downstream routers have clients and know how to reach the RP.
> >
> > HTH,
> >
> > Bob Sinclair
> > CCIE #10427, CCSI 30427
> > www.netmasterclass.net
> >
> >
> > ----- Original Message -----
> > *From:* Aamir Aziz <aamiraz77@gmail.com>
> > *To:* ccielab@groupstudy.com
> > *Sent:* Wednesday, June 14, 2006 12:12 PM
> > *Subject:* Multicast question
> >
> >
> > Hi guys
> >
> > i have a question, lets say i configure multicast on couple of routers
> and
> > at the far end router i give the igrp group 228.28.28.28 command and do
> a
> > ping from other router and it doesnt ping and on this router where i do
> > ping
> > i do show ip mroute and outgoing interface of 228.28.28.28 is null, what
> > is
> > the first thing to check??
> >
> > thanks
> > Aamir
> >
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