31.2.5 MLD timer

The following table describes the MLDv1 timer values used by the Switch.

Table 31-4 MLDv1 Timer value
Timer	Description	Default value (seconds)	Setting range of this machine (seconds)	Remarks
Query Interval	Interval for sending a Multicast Listener Query message	125	60~3600	-
Query Response Interval	Timeout for waiting for a Multicast Listener Report message	10	-	-
Other Querier Present Interval	Querier monitoring interval	255	2NGQuery interval + Query Response Interval / 2	Calculated based on the formula to the left.
Startup Query Interval	Interval for sending a General Query message during startup	30	Query Interval / 4	Calculated based on the formula to the left.
Last Listener Query Interval	Interval for sending a Specific Query message after receiving a Done message	1	-	-
Multicast Listener Interval	Group member retention time	260	2NGQuery interval + Query Response Interval	Calculated based on the formula to the left.
Last Listener Query Time	Retention time of group members when a detachment request is received	3	-	-

Legend:-: Not applicable

The following table describes the MLDv2 timer values used by the Switch.

Table 31-5 MLDv2 Timer value
Timer	Description	Default value (seconds)	Setting range of this machine (seconds)	Remarks
Query Interval	Interval for sending a Multicast Listener Query message	125	60~3600	-
Query Response Interval	Timeout for waiting for a Multicast Listener Report message	10	-	-
Other Querier Present Interval	Querier monitoring interval	255	Robustness Variable^#NGQuery Interval + Query Response Interval / 2	Calculated based on the formula to the left.
Startup Query Interval	Interval for sending a General Query message during startup	30	Query Interval / 4	Calculated based on the formula to the left.
Last Listener Query Interval	Interval for sending a Specific Query message after receiving a leave request message	1	-	-
Multicast Address Listening Interval	Group member retention time	260	Robustness Variable^#NGQuery Interval + Query Response Interval	Calculated based on the formula to the left.
Last Listener Query Time	Retention time of group members when a detachment request is received	2	Robustness Variable^#NGLast Listener Query Interval	Calculated based on the formula to the left.
Older Version Host Present Interval	Time for switching to MLDv2 multicast address compatibility mode	260	Robustness Variable^#NGQuery Interval + Query Response Interval	Calculated based on the formula to the left.

Legend:-: Not applicable

#: When Robustness Variable is Querier, it follows Robustness Variable of Querier when it is 2,non-Querier.