From: Chris Riling (criling@gmail.com)
Date: Mon Dec 31 2007 - 05:17:26 ARST
Maybe I should include the task, there could be an interputation issue
here...
5.2 Use the fa0/22 interface of SW4 to simulate a client for the group
239.1.2.3. Ensure this client responds to multicast packets sourced from R7.
If I'm on R7, and I ping 239.1.2.3 that would make R7 a source, and SW4 a
receiver of that group correct? I'll just stop rambling until I get a chance
to lab this up and play again... I get the impression that everyone here
thinks it should be too obvious ;)
On Dec 31, 2007 1:33 AM, Joseph Brunner <joe@affirmedsystems.com> wrote:
> Please use debug's (debug ip pim) to understand the whole process. Capture
> the output on each router. Remembers its sources to receivers. That's all
> multicast is.
>
> -Joe
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Chris Riling
> Sent: Monday, December 31, 2007 1:17 AM
> To: bdennis@internetworkexpert.com
> Cc: Joseph Saad; groupstudy
> Subject: Re: PIM NBMA Mode
>
> I just kind of assumed, maybe it was a bad assumption? I assumed because I
> was able to ping the mcast group IP and get a reply when pinging from both
> R8 and SW4, just not from R7 across the frame cloud. Other traffic across
> the cloud was passing fine... No, I didn't try putting the join group on
> R8,
> the task specified that it needed to be on SW4... I could lab this up
> again
> and give it a shot...
>
> Thanks,
> Chris
>
> On Dec 30, 2007 11:59 PM, Brian Dennis <bdennis@internetworkexpert.com>
> wrote:
>
> > Just out of curiosity why do you think PIM NBMA mode has anything to do
> > with this issue?
> >
> > Also have you tried putting the IGMP join on R8?
> >
> > Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP)
> > bdennis@internetworkexpert.com
> >
> > Internetwork Expert, Inc.
> > http://www.InternetworkExpert.com <http://www.internetworkexpert.com/> <
> http://www.internetworkexpert.com/>
> > Toll Free: 877-224-8987
> > Direct: 775-745-6404 (Outside the US and Canada)
> >
> >
> > >----- Original Message -----
> > Subject: Re: PIM NBMA Mode
> > Date: Sun, December 30, 2007 12:50
> > From: "Chris Riling" <criling@gmail.com>
> >
> > > Thanks for responding... R7 cannot ping the multicast group and get a
> > > reply...the other boxes can, but for some reason it's not working
> across
> > the
> > > frame cloud.
> > >
> > > Thanks,
> > > Chris
> > >
> > > On Dec 30, 2007 2:21 AM, Joseph Saad <joseph.samir.saad@gmail.com>
> > wrote:
> > >
> > > > Not sure if you got an answer, but maybe you need to raise the DR
> > priorit
> > > > of R8 interface to R8.
> > > >
> > > > I fail to understand what your issue is though.
> > > >
> > > > On Dec 29, 2007 12:07 PM, Chris Riling < criling@gmail.com> wrote:
> > > >
> > > > > Hi Guys,
> > > > >
> > > > > Suppose I have the following situation:
> > > > >
> > > > > SW4 ------- R8
> > > > > /
> > > > > Frame Cloud
> > > > > |
> > > > > R7
> > > > >
> > > > > SW4 has ip igmp join-group 239.1.2.3 for example
> > > > > R8 is a multipoint frame hub
> > > > > R7 is a frame spoke
> > > > > R8 is the RP via BSR
> > > > > All relevant interfaces have ip pim sparse-mode and all devices
> have
> > no
> > > > > ip
> > > > > pim dm-fallback
> > > > >
> > > > > What would be required to make this work? I don't have access to
> my
> > > > > configs
> > > > > atm, but I enabled ip pim nmba-mode on the serial interfaces, and
> I
> > > > > can't
> > > > > get it working across the frame cloud. I do have the broadcast
> > keyword
> > > > > on
> > > > > the PVC. R8 and SW4 can both ping the group and get a reply, and
> > > > > everyone
> > > > > (including R7) is showing the correct RP via BSR (R8's lo0). What
> > else
> > > > > is
> > > > > needed to make this work over the cloud?
> > > > >
> > > > > Thanks,
> > > > > Chris
> > > > >
> > > > >
> > _______________________________________________________________________
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