488 IPv6 MLD Snooping Commands
ipv6 mld snooping immediate-leave
The ipv6 mld snooping immediate-leave command enables or disables MLD
Snooping snooping immediate-leave admin mode on a selected interface or
VLAN. Enabling fast-leave allows the switch to immediately remove the layer
2 LAN interface from its forwarding table entry upon receiving an MLD done
message for that multicast group without first sending out MAC-based
general queries to the interface. You should enable fast-leave admin mode
only on VLANs where only one host is connected to each layer 2 LAN port.
This prevents the inadvertent dropping of the other hosts that were
connected to the same layer 2 LAN port but were still interested in receiving
multicast traffic directed to that group. Also, fast-leave processing is
supported only with MLD version 1 hosts.
Syntax
ipv6 mld snooping immediate-leave [vlan-id]
no ipv6 mld snooping immediate-leave [vlan-id]
•
vlan_id
— Specifies a VLAN ID value in VLAN Database mode.
Default Configuration
MLD Snooping fast-leave mode is disabled.
Command Mode
Interface Configuration (gigabitethernet, port-channel, tengigabitethernet)
mode.
VLAN Database Mode.
User Guidelines
This command has no user guidelines.
Example
console(config-vlan)#ipv6 mld snooping immediate-
leave 4
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