Displaying Multicast Router Information - Cisco WS-C6506 Software Manual

Chapter 51 Configuring Multicast Services

Displaying Multicast Router Information

When you enable IGMP snooping, the switch automatically learns to which ports a multicast router is
connected.
To display the dynamically learned multicast router information, perform one of these tasks in privileged
mode:
Task
Display information on the dynamically learned
and manually configured multicast router ports.
Display information only on those multicast
router ports that are learned dynamically using
IGMP snooping.
This example shows how to display information on all multicast router ports (the asterisk [*] next to the
multicast router on port 2/1 indicates that the entry was configured manually):
Console> (enable) show multicast router
Port
-------------- ----------------
2/1
2/2
16/1
Total Number of Entries = 3
'*' - Configured
'+' - RGMP-capable
'#' - Channeled Port
'$' - IGMP-V3 Router
'@' - IGMP-Querier Router
Console> (enable)
This example shows how to display only those multicast router ports that were learned dynamically
through IGMP:
Console> (enable) show multicast router igmp
IGMP enabled
Port
---------
1/1
2/1
Total Number of Entries = 2
'*' - Configured
'*' - Configured
'+' - RGMP-capable
'#' - Channeled Port
'$' - IGMP-V3 Router
'@' - IGMP-Querier Router
Console> (enable)
OL-8978-04
Vlan
* @ 99
@ 201
+ @ 10,200-201
Vlan
----------------
1
2,99,255
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
Configuring IGMP Snooping on the Switch
Command
show multicast router [mod/port] [vlan_id]
show multicast router igmp [mod/port]
[vlan_id]
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