ECS4100 Series CLI Reference Guide-R07

Chapter 27 | Multicast Filtering Commands
MLD Snooping
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◆ If MLD immediate-leave is enabled, the switch assumes that only one host is
connected to the interface. Therefore, immediate leave should only be enabled
on an interface if it is connected to only one MLD-enabled device, either a
service host or a neighbor running MLD snooping.
◆ If the “by-host-ip” option is used, the router/querier will not send out a group-
specific query when an MLD leave message is received, but will check if there
are other hosts joining the multicast group. Only when all hosts on that port
leave the group will the member port be deleted.
Example
The following shows how to enable MLD immediate leave.
Console(config)#ipv6 mld snooping vlan 1 immediate-leave
Console(config)#
ipv6 mld snooping
vlan mrouter
This command statically configures an IPv6 multicast router port. Use the no form
to remove the configuration.
Syntax
[no] ipv6 mld snooping vlan vlan-id mrouter interface
vlan-id - VLAN ID (Range: 1-4094)
interface
ethernet unit/port
unit - Unit identifier. (Range: 1)
port - Port number. (Range: 1-12/26/28/52)
port-channel channel-id (Range: 1-16)
Default Setting
No static multicast router ports are configured.
Command Mode
Global Configuration
Command Usage
Depending on your network connections, MLD snooping may not always be able
to locate the MLD querier. Therefore, if the MLD querier is a known multicast router/
switch connected over the network to an interface (port or trunk) on the switch,
you can manually configure that interface to join all the current multicast groups.