HP ProCurve Secure Router 7203 dl Advanced Management And Configuration Manual page 595

RouterA# show ip pim-sparse rp-set
Group address Static-RP-address
-----------------------------------
rp1
rp2
RouterA# show access-lists
Extended IP access list rp1
permit ip any 224.0.0.0 7.255.255.255 (0 matches)
Extended IP access list rp2
permit ip any 232.0.0.0 7.255.255.255 (1 matches)
The IP address for the multicast host
address should be in the source
position.
Figure 11-34. Misconfigured Extended ACL for an RP Set
Router A processes the any keyword in the source position and allows both
routers to support all groups. Router A will sometimes select the same RP as
its neighbors, but it will sometimes select the wrong one.
You should use standard ACLs to configure your router's RP set to avoid this
problem.
Other Tips for Troubleshooting an Upstream Router. If incompatible
RP sets are not the problem, then you should troubleshoot the upstream router
in the much same way that you would troubleshoot an edge router. (See
"Troubleshooting an Edge Router" on page 11-56.) Verify that:
the router has a multicast route for that group (show ip mroute) and that
the interface that connects to the downstream router is up and running
PIM (show ip pim-sparse interfaces)
the outgoing interface list for the multicast entry includes the interface
that connects to the downstream router (show ip mroute)
the incoming interface for the multicast entry is not null and connects to
the correct upstream neighbor (show ip mroute)
the router is either implementing a routing protocol or has all necessary
static routes (show ip route)
the router is receiving PIM joins from the downstream router and sending
joins to its own upstream neighbor (show ip pim-sparse neighbor, show
ip pim-sparse traffic, debug ip pim-sparse joinprune)
Configuring Multicast Support with PIM-SM
10.1.1.2
10.3.3.2
Troubleshooting PIM-SM
11-67