Configured SSM Multicast routing on MPLS backbone routers and want to test out multicast VPN. I trying to ping multicast source from one PE to the other and do not get a response, i see the multicast tunnel up though for that vrf? do i need an actual multicast source to trigger SSM? or would a ping work just like in normal sparse mode?
When using SSM, you need to specify a multicast source address as well as the multicast group address. For example, you could have an (S,G) as (10.1.1.1, 18.104.22.168) where 10.1.1.1 is the source address and the 22.214.171.124 is the multicast group address.
If you are trying to ping from a router (which by definition has multiple addresses), then you need to make sure that the source address used for the ping is 10.1.1.1 (as per this example). So you clould so something like the following:
I am still confussed, lets say I have the following topology:
I have rip enabled between the CEs and the PEs. CE's can ping each other and both have a loopback that is also reachable by the other.
SSM is configured in the MPLS backbone.
I use the command "ip pim igmp join-group 126.96.36.199" on the loopback of CE1.
Technically if multicast VPN is configured correctly I should be able to see a (S,G) on CE2, right?
(S,G) (loopback address on CE1, 188.8.131.52)
My question is that when i try to ping 184.108.40.206 from router CE2 , i do not get a response. I could source my ping from the interface facing PE2 but it would not make a difference as that interface is reachable from CE1 and would be the default source interface for the ping. Any thoughts ;-)
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