Verifying PIM Operation
Verifying PIM OperationTroubleshooting SuggestionsHave a
topology diagram in front of you Without a diagram how could you.
a. Verify the correct ingress-interface for any mroute entry ? b.
Verify the correct RPF Neighbor for any entry ? c. Identify
interfaces where PIM neighbors should have been discovered ?
2. Have a good working knowledge of IP unicast routing
troubleshooting (i.e, EIGRP, OSPF , etc).
Show IP PIM RP - command show ip pim rp
Verify that you see the PIM RP
No multicasting enableNo receiver never send igmp membership
reportPim not enable to downstream interface What is the Problem
With X
No multicast routing enableNo PIM enable to Y to X interfaceVice
versa
No multicast state in The router ZMulticast is still stuck In
PIM register stateSame as last slide
May be multicast isnt started X upstream interface missing
PIMMay be router in the middle missing PIMMay be unicast routing
issues
