Command Line Interface
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show mac-address-table multicast
This command shows known multicast addresses.
Syntax
show mac-address-table multicast [vlan vlan-id] [user | igmp-snooping]
• vlan-id - VLAN ID (1 to 4093)
• 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)
This section describes commands used to configure Layer 2 IGMP query on the
switch.
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 3-10 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 4-257
ip igmp snooping query-count Configures the query count GC 4-257
ip igmp snooping query-interval Configures the query interval GC 4-258
ip igmp snooping
query-max-response-time
Configures the report delay GC 4-258
ip igmp snooping
router-port-expire-time
Configures the query timeout GC 4-259
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