Enabling fast-leave processing
This feature enables the device to immediately remove a port from the forwarding entry for a multicast group when the port receives a leave massage.
Configuration restrictions and guidelines
When you enable fast-leave processing, follow these restrictions and guidelines:
Do not enable fast-leave processing on a port that has multiple receiver hosts in a VLAN. If fast-leave processing is enabled, the remaining receivers cannot receive multicast data for a group after a receiver leaves that group.
You can enable fast-leave processing globally for all ports in IGMP-snooping view or for a port in interface view. For a port, the port-specific configuration takes priority over the global configuration.
Enabling fast-leave processing globally
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter IGMP-snooping view. | igmp-snooping | N/A |
3. Enable fast-leave processing globally. | fast-leave [ vlan vlan-list ] | By default, fast-leave processing is disabled globally. |
Enabling fast-leave processing on a port
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter Layer 2 Ethernet interface view or Layer 2 aggregate interface view. | interface interface-type interface-number | N/A |
3. Enable fast-leave processing on the port. | igmp-snooping fast-leave [ vlan vlan-list ] | By default, fast-leave processing is disabled on a port. |