PIM Sparse mode

From: Sami (sy1977@gmail.com)
Date: Thu Jun 22 2006 - 11:11:11 ART


Group,

I was under impression 224.0.1.40 is used to listen Auto-RP annoncement. I
just enabled sparse mode and configured static RP on all the routers.

When I use show ip mroute it shows *,G entry for *,224.0.1.40 ? Why is this
entry ?

R4#show ip mr
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

(*, 224.0.1.40), 00:09:58/00:03:21, RP 150.1.4.4, flags: SJCL
  Incoming interface: Null, RPF nbr 0.0.0.0
  Outgoing interface list:
    Serial0/1/0, Forward/Sparse, 00:03:05/00:03:21
    Serial0/0/0, Forward/Sparse, 00:09:58/00:02:46

Thanks



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