From: Gupta, Gopal (NWCC) (gopal.gupta@hp.com)
Date: Tue Dec 04 2007 - 09:41:48 ART
Hi Gurus
There is one question, am scratching my head
Topology
R5->R1->R4
|
R3
|
R2
R4 is MA and R3 is RP
Question is w/o using IP Pim autorp listener and all interfaces in
Sparse mode, R4 is still sending the group-RP mappings to all the
Routers including R5; is this the default behavior ??
The problem is R5 should not recv these mappings from R4 coz all is
running in Sparse mode.
R5:-->
R5#sh ip mr
(*, 224.0.1.40), 01:10:44/stopped, RP 0.0.0.0, flags: DCL
Incoming interface: Null, RPF nbr 0.0.0.0
Outgoing interface list:
Serial1/0.504, Forward/Sparse, 01:10:44/00:01:32
(204.12.1.4, 224.0.1.40), 01:10:43/00:02:54, flags: PLTX
Incoming interface: Serial1/0.504, RPF nbr 155.1.15.1
Outgoing interface list: Null
R5#sh ip pim rp ma
PIM Group-to-RP Mappings
Group(s) 224.0.0.0/4
RP 150.1.3.3 (?), v2v1
Info source: 204.12.1.4 (?), elected via Auto-RP
Uptime: 01:10:47, expires: 00:02:49
As far as i have studied till now is we need either PIM Sparse-dense
mode or pim AutoRP Listener for getting group to RP mappings and it is
working W/O those commands.
Hope you will throw some light on this.
Many Thanks,
Gops
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