show mldsnooping

Use this command to display MLD Snooping information. Configured information is displayed whether or not MLD Snooping is enabled.

Format show mldsnooping [unit/slot/port | vlanid]
Mode Privileged EXEC

When the optional arguments unit/slot/port or vlanid are not used, the command displays the following information.

Parameter Description
Admin Mode Indicates whether or not MLD Snooping is active on the switch.
Multicast Control Frame Count The number of multicast control frames that are processed by the CPU.
Interfaces Enabled for MLD Snooping Interfaces on which MLD Snooping is enabled.
MLD Control Frame Count Displays the number of MLD Control frames that are processed by the CPU.
VLANs Enabled for MLD Snooping VLANs on which MLD Snooping is enabled.
Exclude Mrouter Interface Mode Indicates whether the mode is enabled or disabled.
MLD-Plus Indicates whether the mode is enabled or disabled.

When you specify the unit/slot/port >values, the following information displays.

Parameter Description
MLD Snooping Admin Mode Indicates whether MLD Snooping is active on the interface.
Fast Leave Mode Indicates whether MLD Snooping Fast Leave is active on the VLAN.
Group Membership Interval Shows the amount of time in seconds that a switch will wait for a report from a particular group on a particular interface, which is participating in the VLAN, before deleting the interface from the entry. This value may be configured.
Max Response Time Displays the amount of time the switch waits after it sends a query on an interface, participating in the VLAN, because it did not receive a report for a particular group on that interface. This value may be configured.
Multicast Router Present Expiration Time Displays the amount of time to wait before removing an interface that is participating in the VLAN from the list of interfaces with multicast routers attached. The interface is removed if a query is not received. This value may be configured.

When you specify a value for vlanid, the following information appears.

Parameter Description
VLAN Admin Mode Indicates whether MLD Snooping is active on the VLAN.

Example: The following shows example CLI display output for the command at the Global level.

(Switching)#show mldsnooping

Admin Mode..................................... Enable
Multicast Control Frame Count.................. 0
Interfaces Enabled for MLD Snooping............ None
VLANs enabled for MLD snooping................. 1
Exclude Mrouter Interface Mode................. Enabled
MLD-Plus....................................... Enabled
VLAN ID........................................ 1
MLD Snooping Admin Mode........................ Enabled
Fast Leave Mode................................ Enabled
Group Membership Interval (secs)............... 260
Max Response Time (secs)....................... 10
Multicast Router Expiry Time (secs)............ 300
Exclude Mrouter Interface Mode................. Enabled
MLD-Plus....................................... Enabled

Example: The following shows example CLI display output for the command at the VLAN level.

(Switching)#show mldsnooping 1

VLAN ID........................................ 1
MLD Snooping Admin Mode........................ Enabled
Fast Leave Mode................................ Enabled
Group Membership Interval (secs)............... 260
Max Response Time (secs)....................... 10
Multicast Router Expiry Time (secs)............ 300
Exclude Mrouter Interface Mode................. Enabled
MLD-Plus....................................... Enabled

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