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Catalyst 3550 Multilayer Switch Software Configuration Guide
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Chapter 34 Configuring IP Multicast Routing
Monitoring and Maintaining IP Multicast Routing
Monitoring IP Multicast Routing
You can use the privileged EXEC commands in Table 34-5 to monitor IP multicast routers, packets, and
paths:
show ip pim interface [type number] [count] Display information about interfaces configured
for PIM.
show ip pim neighbor [type number] List the PIM neighbors discovered by the
multilayer switch.
show ip pim rp [group-name | group-address] Display the RP routers associated with a
sparse-mode multicast group.
show ip rpf {source-address | name} Display how the multilayer switch is doing
Reverse-Path Forwarding (that is, from the unicast
routing table, DVMRP routing table, or static
mroutes).
show ip sdr [group | “session-name” | detail] Display the Session Directory Protocol Version 2
cache.
Table 34-4 Commands for Displaying System and Network Statistics (continued)
Command Purpose
Table 34-5 Commands for Monitoring IP Multicast Routing
Command Purpose
mrinfo [hostname | address] [source-address |
interface]
Query a multicast router or multilayer switch about
which neighboring multicast devices are peering
with it.
mstat source [destination] [group] Display IP multicast packet rate and loss
information.
mtrace source [destination] [group] Trace the path from a source to a destination
branch for a multicast distribution tree for a given
group.
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