Best way of troubleshooting MC OIL is null?
Doing some revision of multicast. Right now I'm just doing some basic labs but still having issues. First I ran a simple dense mode topology and everything was fine.
Then I changed to sparse mode and a static RP. I'm using the Vol1 topology and made R4 the RP and R1 is the sender and SW2 is the receiver. I am running this in Dynamips.
When I ping from R1 I can see that it registers with R4 but the traffic does not go through to SW2. It stops on R5 which says that OIL is null even though SW2 has ip igmp join-group configured. It seems that R5 does not understand that SW2 wants to receive the traffic.
I can see that SW2 has joined the group by using show ip igmp groups. When I debug PIM and IGMP on R5 I don't see messages from SW2.
Maybe SW2 has problems switching to the SPT, I tried setting SPT threshold to infinity but SW2 still tries to switch to the SPT.