Enabling Mld Immediate Leave - Cisco Catalyst 4500 Series Software Configuration Manual

Configuring IPv6 MLD Snooping
Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# ipv6 mld snooping vlan
vlan-id mrouter interface interface-id
Step 3
Switch(config)# end
Step 4
Switch# show ipv6 mld snooping mrouter
[ ]
vlan vlan-id
Step 5
Switch# copy running-config startup-config
To remove a multicast router port from the VLAN, use the no ipv6 mld snooping vlan vlan-id mrouter
interface interface-id global configuration command.
This example shows how to add a multicast router port to VLAN 200:
Switch# configure terminal
Switch(config)# ipv6 mld snooping vlan 200 mrouter interface gigabitethernet1/0/2
Switch(config)# exit

Enabling MLD Immediate Leave

When you enable MLDv1 Immediate Leave, the switch immediately removes a port from a multicast
group when it detects an MLD Done message on that port. You should only use the Immediate Leave
feature when there is a single receiver present on every port in the VLAN. When multiple clients exist
for a multicast group on the same port, do not enable Immediate-Leave in a VLAN.
To enable MLDv1 Immediate Leave, perform this task:
Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# ipv6 mld snooping
vlan vlan-id immediate-leave
Step 3
Switch(config)# end
Step 4
Switch# show ipv6 mld snooping vlan
vlan-id
Step 5
Switch# copy running-config
startup-config
To disable MLD Immediate Leave on a VLAN, use the no ipv6 mld snooping vlan vlan-id
immediate-leave global configuration command.
This example shows how to enable MLD Immediate Leave on VLAN 130:
Switch# configure terminal
Switch(config)# ipv6 mld snooping vlan 130 immediate-leave
Switch(config)# exit
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
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Chapter 29 Configuring IPv6 Multicast Listener Discovery Snooping
Purpose
Enters global configuration mode.
Specifies the multicast router VLAN ID, and specify the
interface to the multicast router.
• The VLAN ID range is 1 to 1001 and 1006 to 4094.
• The interface can be a physical interface or a port channel.
The port-channel range is 1 to 64.
Returns to privileged EXEC mode.
Verifies that IPv6 MLD snooping is enabled on the VLAN
interface.
(Optional) Saves your entries in the configuration file.
Purpose
Enters global configuration mode.
Enables MLD Immediate Leave on the VLAN interface.
Returns to privileged EXEC mode.
Verifies that Immediate Leave is enabled on the VLAN interface.
(Optional) Saves your entries in the configuration file.