Specifications

show igmp-snooping
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show igmp-snooping
Displays IGMP snooping information. The following information is displayed for each
VLAN:
 Whether the querier functionality is set, the IGMP querier address, and multicast
router ports
 Subscription multicast group information for each VLAN or port, and learned MAC
addresses
 Statistics (number of IGMP packets sent and received)
Syntax
show igmp-snooping [<VLAN ID list>]
show igmp-snooping {group [<VLAN ID list>] | port <Port# list> | channel-group-number <Channel
group# list>}
show igmp-snooping statistics [<VLAN ID list>]
Input mode
User mode and administrator mode
Parameters
<VLAN ID list>
Specify a list of VLAN IDs for which you want to display IGMP snooping information.
For details about how to specify <VLAN ID list>, see Specifiable values for
parameters.
Operation when this parameter is omitted:
Displays information about IGMP snooping for all VLANs.
{group [<VLAN ID list>] | port <Port# list> | channel-group-number <Channel group#
list>
}
group
Displays the subscription multicast group addresses for the VLANs.
port <Port# list>
Displays the subscription multicast group addresses for the specified ports.
For details about how to specify <Port# list> and the specifiable range of
values, see Specifiable values for parameters.
channel-group-number <Channel group# list>
Displays the subscription multicast group addresses for the specified channel
groups. For details about how to specify <Channel group# list> and the
specifiable range of values, see Specifiable values for parameters.
statistics
Displays statistics.
Example 1
Figure 20-1 Example of displaying IGMP snooping information
> show igmp-snooping
Date 2008/11/14 15:56:12 UTC
VLAN counts: 3
VLAN 3253:
IP Address: 192.168.53.100/24 Querier: enable
IGMP querying system: 192.168.53.100