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Cisco ME 3800X and 3600X Switch Software Configuration Guide
OL-23400-01
Chapter 33 Configuring IP Multicast Routing
Monitoring and Maintaining IP Multicast Routing
You can use any of the privileged EXEC commands in
Table 33-6
to clear IP multicast caches, tables,
and databases:
Displaying System and Network Statistics
You can display specific statistics, such as the contents of IP routing tables, caches, and databases.
Note
The switch does not support per-route statistics.
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 33-7
to display various routing statistics:
Table 33-6
Commands for Clearing Caches, Tables, and Databases
Command
Purpose
clear ip igmp group [group-name |
group-address | interface]
Delete entries from the IGMP cache.
clear ip mroute {* | group [source]}
Delete entries from the IP multicast routing table.
clear ip pim auto-rp rp-address
Clear the Auto-RP cache.
clear ip sdr [group-address | “session-name”]
Delete the Session Directory Protocol Version 2 cache or an sdr cache
entry.
Table 33-7
Commands for Displaying System and Network Statistics
Command
Purpose
ping [group-name | group-address]
Send an ICMP Echo Request to a multicast group address.
show ip igmp groups [group-name |
group-address | type number]
Display the multicast groups that are directly connected to the switch and
that were learned through IGMP.
show ip igmp interface [type number]
Display multicast-related information about an interface.
show ip mcache [group [source]]
Display the contents of the IP fast-switching cache.
show ip mpacket [source-address | name]
[group-address | name] [detail]
Display the contents of the circular cache-header buffer.
show ip mroute [group-name | group-address]
[source] [summary] [count] [active kbps]
Display the contents of the IP multicast routing table.
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 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 switch is doing Reverse-Path Forwarding (that is, from
the unicast routing table or static mroutes).
show ip sdr [group | “session-name” | detail]
Display the Session Directory Protocol Version 2 cache.
