From: Ozgur Guler (ozgur11@gmail.com)
Date: Fri Oct 05 2007 - 20:08:21 ART
This generally happens when the RP can not send register-stop because it
can not join the SPT.
You should check each node/link along the path to RP to see if
everything is configured properly .
-Ozgur
CCIE 13237 R&S, SP
lalit gupta wrote:
> HI Experts,
>
>
> Rack1R5#SH 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
>
> (*, 224.2.2.2), 00:00:24/stopped, RP 3.3.1.1, flags: SPF
> Incoming interface: Serial0/0/0, RPF nbr 3.3.11.3
> Outgoing interface list: Null
>
> (150.1.5.5, 224.2.2.2), 00:00:24/00:03:05, flags: FT
> Incoming interface: Loopback0, RPF nbr 0.0.0.0, Registering
> Outgoing interface list:
> Serial0/0/0, 3.3.11.3, Forward/Sparse, 00:00:24/00:03:05
>
> (*, 224.0.1.40), 00:00:50/00:02:45, RP 0.0.0.0, flags: DCL
> Incoming interface: Null, RPF nbr 0.0.0.0
> Outgoing interface list:
> Loopback0, Forward/Sparse, 00:00:50/00:02:45
>
> What does this Registering means in mroute table... whenever this comes in
> table i loose my ping with igmp-join group. Could someone explain why this
> is happening..
>
> i m using sparse-mode with bsr...
>
>
> thanks and regards
> Lalit
>
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