System information

3-105
Multicast Filtering Commands
3
show mac-address-table multicast
Use this command to show known multicast addresses.
Syntax
show mac-address-table multicast [vlan vlan-id] [user | igmp-snooping]
• vlan-id - VLAN ID (1 to 4094)
• user - Display only the user-configured multicast entries.
• igmp-snooping - Display only entries learned through IGMP snooping.
Default Setting
None
Command Mode
Privileged Exec
Command Usage
Member types displayed include IGMP or USER, depending on selected
options.
Example
The following shows the multicast entries learned through IGMP snooping for
VLAN 1:
IGMP Query Commands (Layer 2)
Console#show mac-address-table multicast vlan 1 igmp-snooping
VLAN M'cast IP addr. Member ports Type
---- --------------- ------------ -------
1 224.1.2.3 Eth1/11 IGMP
Console#
Table 3-32. IGMP Query Commands (Layer 2)
Command Function Mode Page
ip igmp snooping querier Allows this device to act as the querier for IGMP snooping GC 3-106
ip igmp snooping
query-count
Configures the query count GC 3-106
ip igmp snooping
query-interval
Configures the query interval GC 3-107
ip igmp snooping
query-max-response-time
Configures the report delay GC 3-107
ip igmp snooping
router-port-expire-time
Configures the query timeout GC 3-108