Setting the IGMP last member query interval

About the IGMP last member query interval

A receiver host starts a report delay timer for a multicast group when it receives an IGMP group-specific query for the group. This timer is set to a random value in the range of 0 to the maximum response time advertised in the query. When the timer value decreases to 0, the host sends an IGMP report to the group.

The IGMP last member query interval defines the maximum response time advertised in IGMP group-specific queries. Set an appropriate value for the IGMP last member query interval to speed up hosts' responses to IGMP group-specific queries and avoid IGMP report traffic bursts.

Setting the IGMP last member query interval globally

  1. Enter system view.

    system-view

  2. Enter IGMP-snooping view.

    igmp-snooping

  3. Set the IGMP last member query interval globally.

    last-member-query-interval interval

    By default, the global IGMP last member query interval is 1 second.

Setting the IGMP last member query interval for a VLAN

  1. Enter system view.

    system-view

  2. Enter VLAN view.

    vlan vlan-id

  3. Set the IGMP last member query interval for the VLAN.

    igmp-snooping last-member-query-interval interval

    By default, the IGMP last member query interval is 1 second for a VLAN.

Setting the IGMP last member query interval for a VSI

  1. Enter system view.

    system-view

  2. Enter VSI view.

    vsi vsi-name

  3. Set the IGMP last member query interval for the VSI.

    igmp-snooping last-member-query-interval interval

    By default, the IGMP last member query interval is 1 second for a VSI.