Pim-Sm Troubleshooting Process; Troubleshooting An Edge Router - HP 7102dl - ProCurve Secure Router Configuration Manual

Configuring Multicast Support with PIM-SM
Troubleshooting PIM-SM
13-56
Table 13-6. PIM-SM debug Commands
View
all messages
assert messages
hellos
PIM join and prunes
detailed information in PIM messages
registers and register-stops

PIM-SM Troubleshooting Process

When local hosts are not receiving multicasts, you should start troubleshoot-
ing beginning with the edge router and proceeding up the tree.

Troubleshooting an Edge Router

You should verify the following for the edge router:
the local router has an IGMP group membership for the multicasts in
question (show ip igmp group)
the local router has a multicast route for that group (show ip mroute)
the outgoing interface list for the multicast entry includes the interface
that connects to the network in question (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 sending PIM joins for the group to the upstream neighbor
(show ip pim-sparse neighbor, show ip pim-sparse traffic, debug ip
pim-sparse joinprune)
To troubleshoot the edge router, follow these steps:
1. Determine whether the local router has received IGMP joins from the
hosts. Enter the following command to view the groups for which the
router has received an IGMP report:
ProCurve# show ip igmp group
Command Syntax
debug ip pim-sparse
debug ip pim-sparse assert
debug ip pim-sparse hello
debug ip pim-sparse joinprune
debug ip pim-sparse packets
debug ip pim-sparse register