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Unlike a static member port, a port that you configure as a simulated member host ages out like a
dynamic member port.
To configure a port as a simulated member host:
Ste
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter Layer 2 Ethernet
interface view, Layer 2
aggregate interface view, or
port group view.
• Enter Layer 2 Ethernet interface
view or Layer 2 aggregate
interface view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
Use either command.
3. Configure a port as a
simulated member host.
igmp-snooping host-join
group-address [ source-ip
source-address ] vlan vlan-id
Not configured by default.
Enabling IGMP snooping fast-leave processing
IGMP snooping fast-leave processing enables the switch to process IGMP leave messages quickly. With
IGMP snooping fast-leave processing enabled, when the switch receives an IGMP leave message on a
port, it immediately removes that port from the forwarding entry for the multicast group specified in the
message. Then, when the switch receives IGMP group-specific queries for that multicast group, it does not
forward them to that port.
On a port that has only one host attached, you can enable IGMP snooping fast-leave processing to save
bandwidth and resources. However, on a port that has multiple hosts attached, you should not enable
IGMP snooping fast-leave processing if you have enabled dropping unknown multicast data globally or
for the port. Otherwise, if a host on the port leaves a multicast group, the other hosts attached to the port
in the same multicast group cannot receive the multicast data for the group.
Enabling IGMP snooping fast-leave processing globally
Ste
Command
Remarks
1. Enter system view.
system-view N/A
2. Enter IGMP-snooping view.
igmp-snooping N/A
3. Enable IGMP snooping
fast-leave processing.
fast-leave [ vlan vlan-list ] Disabled by default
Enabling IGMP snooping fast-leave processing on a port
Ste
Command
Remarks
1. Enter system view.
system-view N/A
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