Setting the MLD last listener query interval
A receiver host starts a report delay timer for an IPv6 multicast group when it receives an MLD multicast-address-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 MLD report to the group.
The MLD last listener query interval defines the maximum response time advertised in MLD multicast-address-specific queries. Set an appropriate value for the MLD last listener query interval to speed up hosts' responses to MLD multicast-address-specific queries and avoid MLD report traffic bursts.
Configuration restrictions and guidelines
When you set the MLD last listener query interval, follow these restrictions and guidelines:
If the Layer 2 device receives a done message from a port enabled with fast-leave processing, the device does not send an MLD multicast-address-specific query to the port.
You can set the MLD last listener query interval globally for all VLANs in MLD-snooping view or for a VLAN in VLAN view. For a VLAN, the VLAN-specific configuration takes priority over the global configuration.
Setting the MLD last listener query interval globally
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter MLD-snooping view. | mld-snooping | N/A |
3. Set the MLD last listener query interval globally. | last-listener-query-interval interval | The default setting is 1 second. |
Setting the MLD last listener query interval in a VLAN
Step | Command | Remarks |
|---|---|---|
1. Enter system view. | system-view | N/A |
2. Enter VLAN view. | vlan vlan-id | N/A |
3. Set the MLD last listener query interval in the VLAN. | mld-snooping last-listener-query-interval interval | The default setting is 1 second. |