3Com 4210G Series, Configuration Manual, Page: 399 / 1133

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Follow these steps to configure simulated joining:
To do... Use the command... Remarks
Enter system view
system-view
—
interface interface-type
interface-number
Enter Ethernet port/Layer 2
aggregate port view or port
group view
port-group manual port-group-name
Required
Use either approach
Configure simulated joining
mld-snooping host-join
ipv6-group-address
[
source-ip
ipv6-source-address
]
vlan vlan-id
Required
Disabled by default
z
Each simulated host is equivalent to an independent host. For example, when receiving an MLD
query, the simulated host corresponding to each configuration responds respectively.
z
Unlike a static member port, a port configured as a simulated member host will age out like a
dynamic member port.
Configuring Fast Leave Processing
The fast leave processing feature allows the switch to process MLD done messages in a fast way. With
the fast leave processing feature enabled, when receiving an MLD done message on a port, the switch
immediately removes that port from the outgoing port list of the forwarding table entry for the indicated
IPv6 multicast group. Then, when receiving MLD done multicast-address-specific queries for that IPv6
multicast group, the switch will not forward them to that port.
In VLANs where only one host is attached to each port, fast leave processing helps improve bandwidth
and resource usage.
Configuring fast leave processing globally
Follow these steps to configure fast leave processing globally:
To do... Use the command... Remarks
Enter system view
system-view
—
Enter MLD Snooping view
mld-snooping
—
Enable fast leave processing
fast-leave
[
vlan vlan-list
]
Required
Disabled by default