Enabling fast-leave processing

This feature enables the IGMP querier to send a leave notification directly to the upstream without sending IGMP group-specific queries or IGMP group-and-source-specific queries after receiving a leave message. This reduces leave latency and preserves the network bandwidth.

The fast-leave processing configuration is effective only when the device runs IGMPv2 or IGMPv3.

To enable fast-leave processing:

Step

Command

Remarks

1. Enter system view.

system-view

N/A

2. Enter interface view.

interface interface-type interface-number

N/A

3. Enable fast-leave processing.

igmp fast-leave [ group-policy acl-number ]

By default, fast-leave processing is disabled.