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Chapter 34
Configuring IP Multicast Routing
You can display information to learn resource utilization and solve network problems. You can also
display information about node reachability and discover the routing path your device's packets are
taking through the network.
You can use any of the privileged EXEC commands in
Table 34-5
Commands for Displaying System and Network Statistics
Command
ping [group-name | group-address]
show ip igmp groups [group-name |
group-address | type number]
show ip igmp interface [type number]
show ip mcache [group [source]]
show ip mpacket [source-address | name]
[group-address | name] [detail]
show ip mroute [group-name | group-address]
[source] [summary] [count] [active kbps]
show ip pim interface [type number] [count]
show ip pim neighbor [type number]
show ip pim rp [group-name | group-address]
show ip rpf {source-address | name}
show ip sdr [group | "session-name" | detail]
Monitoring IP Multicast Routing
You can use the privileged EXEC commands in
paths:
Table 34-6
Commands for Monitoring IP Multicast Routing
Command
mrinfo [hostname | address] [source-address |
interface]
mstat source [destination] [group]
mtrace source [destination] [group]
78-17058-01
Table 34-5
Purpose
Send an ICMP Echo Request to a multicast group address.
Display the multicast groups that are directly connected to the switch and
that were learned through IGMP.
Display multicast-related information about an interface.
Display the contents of the IP fast-switching cache.
Display the contents of the circular cache-header buffer.
Display the contents of the IP multicast routing table.
Display information about interfaces configured for PIM.
List the PIM neighbors discovered by the switch.
Display the RP routers associated with a sparse-mode multicast group.
Display how the switch is doing Reverse-Path Forwarding (that is, from
the unicast routing table or static mroutes).
Display the Session Directory Protocol Version 2 cache.
Table 34-6
Purpose
Query a multicast router or multilayer switch about which neighboring
multicast devices are peering with it.
Display IP multicast packet rate and loss information.
Trace the path from a source to a destination branch for a multicast
distribution tree for a given group.
Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
Monitoring and Maintaining IP Multicast Routing
to display various routing statistics:
to monitor IP multicast routers, packets, and
34-35
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