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Catalyst 6000 Family Software Configuration Guide—Releases 6.3 and 6.4
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Chapter 40 Configuring Multicast Services
Configuring IGMP Snooping
To display the dynamically learned multicast router information, perform these tasks in privileged mode:
This example shows how to display information on all multicast router ports (the asterisk [*] next to the
multicast router on port 5/7 indicates that the entry was configured manually):
Console> (enable)
show multicast router
IGMP enabled
Port Vlan
--------- ----------------
1/1 1
2/1 2,99,255
5/7 * 99
Total Number of Entries = 3
'*' - Configured
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 Vlan
--------- ----------------
1/1 1
2/1 2,99,255
Total Number of Entries = 2
'*' - Configured
Console> (enable)
Displaying Multicast Group Information
To display information about multicast groups, perform these tasks in privileged mode:
Task
Command
Display information on dynamically learned and
manually configured multicast router ports.
show multicast router
[
mod/port
] [
vlan_id
]
Display information only on those multicast
router ports learned dynamically using IGMP
snooping.
show multicast router
igmp
[
mod/port
]
[
vlan_id
]
Task
Command
Display information about multicast groups.
show multicast group
[
mac_addr
] [
vlan_id
]
Display only information about multicast groups
learned dynamically through IGMP.
show multicast group igmp
[
mac_addr
]
[
vlan_id
]
