M
ULTICAST

F

ILTERING

C

OMMANDS

4-213

Example
The following example clears all multicast group entries for VLAN 1:

show ip igmp groups

Use this command to display information on multicast groups active on
this switch.
Syntax
show ip igmp groups [group-address | interface vlan vlan-id]
group-address - IP address of the multicast group.
•vlan-id - VLAN ID (Range: 1-4094)
Default Setting
Displays information for all known groups.
Command Mode
Normal Exec, Privileged Exec
Command Usage
This command displays information for multicast groups learned via
IGMP, not static groups.
If the switch receives an IGMP Version 1 Membership Report, it sets
a timer to note that there are Version 1 hosts present which are
members of the group for which it heard the report.
If there are Version 1 hosts present for a particular group, the switch
will ignore any Leave Group messages that it receives for that group.
Console#clear ip igmp group interface vlan 1
Console#