H3C LS-3100-52P-OVS-H3 Operation Manual - page 1069
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z
Each simulated host is equivalent to an independent host. For example, when receiving an IGMP
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 IGMP leave messages in a fast way.
With the fast leave processing feature enabled, when receiving an IGMP leave message on a port, the
switch immediately removes that port from the outgoing port list of the forwarding table entry for the
indicated group. Then, when receiving IGMP group-specific queries for that 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 IGMP Snooping view
igmp-snooping
—
Enable fast leave processing
fast-leave [ vlan vlan-list]
Required
Disabled by default
Configuring fast leave processing on a port or a group of ports
Follow these steps to configure fast leave processing on a port or a group of ports:
To do...
Use the command...
Remarks
Enter system view
system-view
—
interface interface-typeinterface-number
Enter Ethernet port/Layer 2
aggregate port view or port
group view
port-group manual port-group-name
Required
Use either approach
Enable fast leave processing igmp-snooping fast-leave [ vlan vlan-list]
Required
Disabled by default