08-12-2018 10:16 AM - edited 08-12-2018 12:22 PM
I am labbing Multicast Assertion mechanism.
Based on
the highest PIM neighbor behavior
R2 should be elected for (*,G) , right ?
Why does the doc say "In the topology, R1 is the RPF neighbour towards the RP, hence R3 sends a (*,G) join towards R1." ?
R3#show ip mroute IP Multicast Routing Table Outgoing interface flags: H - Hardware switched, A - Assert winner, p - PIM Join Timers: Uptime/Expires Interface state: Interface, Next-Hop or VCD, State/Mode (*, 239.1.1.1), 00:00:55/stopped, RP 192.168.0.100, flags: SJC Incoming interface: GigabitEthernet1, RPF nbr 192.168.3.1 Outgoing interface list: GigabitEthernet4, Forward/Sparse, 00:00:55/00:02:04 (10.0.0.2, 239.1.1.1), 00:00:52/00:02:07, flags: JT Incoming interface: GigabitEthernet1, RPF nbr 192.168.3.2, Mroute Outgoing interface list: GigabitEthernet4, Forward/Sparse, 00:00:52/00:02:07
I can't duplicate two different RPF neighbors unless I customize the different routes for source.
thanks !!
Solved! Go to Solution.
08-12-2018 01:30 PM
Hello
apologies typo - R2 Gi2
08-12-2018 11:42 AM
Hello
On r3 Gi2 enabled to receive multicast? If it isnt then that's why R1 GI2 is at present the rpf for the RP
08-12-2018 11:47 AM
From that doc, it does not say which interfaces are enabled for multicast, I assume that all of them are enabled pim sparse mode.
Also R3 does not have Gi2, I do not know which interface you mean.
thanks for taking a look at it. !!
08-12-2018 01:30 PM
Hello
apologies typo - R2 Gi2
08-12-2018 01:33 PM
thanks !!
seems easy to understand assert for dense mode, but not for Sparse and SSM.
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