From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Mon Aug 28 2006 - 00:43:25 ART
Dan,
Post your entire "show run" output. Also look at the "debug ip
pim" and "debug ip mpacket" on these devices; what does it show?
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> dfredrick@gmail.com
> Sent: Sunday, August 27, 2006 2:11 PM
> To: ccielab@groupstudy.com
> Subject: Eeekkk.... Auto-rp in nbma
>
> Hi...
>
> I have this configuration...
>
>
> (R4)
> \s0/0
> \~~~~~
> ( ) <rp> <ma>
> ( )-----(R1)-----(R3)
> ( ) s0/0 s1/0
> /~~~~~
> s0/0 /
> (R5)
>
>
> The problem is R4 and R5 are not seeing an RP...
>
>
> Rack1R5#sho ip pim rp map
> PIM Group-to-RP Mappings
>
> Rack1R5#
>
>
> This configuration requires RPs to be map via Auto-RP.
>
> I used enabled sparse-mode and nbma-mode on r1,r4, and r5 s0/0
interfaces.
>
> I enable ip pim autorp listener on r1, r4 and r5 as well.
>
>
========================================================================
> Rack1R5#sho ip mroute
> IP Multicast Routing Table
> Flags: D - Dense, S - Sparse, B - Bidir Group, s - SSM Group, C -
> Connected,
> L - Local, P - Pruned, R - RP-bit set, F - Register flag,
> T - SPT-bit set, J - Join SPT, M - MSDP created entry,
> X - Proxy Join Timer Running, A - Candidate for MSDP
Advertisement,
> U - URD, I - Received Source Specific Host Report,
> Z - Multicast Tunnel, z - MDT-data group sender,
> Y - Joined MDT-data group, y - Sending to MDT-data group
> Outgoing interface flags: H - Hardware switched, A - Assert winner
> Timers: Uptime/Expires
> Interface state: Interface, Next-Hop or VCD, State/Mode
>
> (*, 224.0.1.39), 00:18:35/stopped, RP 0.0.0.0, flags: DC
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list:
> Serial0/0, Forward/Sparse, 00:18:35/00:00:00
>
> (150.1.1.1, 224.0.1.39), 00:00:10/00:02:49, flags: PTX
> Incoming interface: Serial0/0, RPF nbr 174.1.145.1
> Outgoing interface list: Null
>
> (*, 224.0.1.40), 00:18:44/00:02:27, RP 0.0.0.0, flags: DCL
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list:
> Serial0/0, Forward/Sparse, 00:18:45/00:00:00
>
========================================================================
==
> =
>
> I even tried putting the MA on R1... still not seeing an RP...
>
> I am sure there is something simple I am overlooking.
>
> Is there any good multicast troubleshooting sites? Or good mulitcast
> books? I read Jeff Doyle's Routing TCP/IP book. But I am still
multicast
> dumb apparently.
>
>
> Any help would be appreciated.
>
> Thanks,
> Dan
>
>
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