Siemens S223, S323 user manual Igmp v2 Snooping Last-Member-Interval, A50010-Y3-C150-2-7619 293

User Manual	UMN:CLI
SURPASS hiD 6615 S223/S323 R1.5

To display IGMP query parameter, use the following command.

Command		Mode	Description
show ip igmp snooping	[vlan	Enable
		Global	Verifies that the IGMP snooping querier is enabled.
VLANS] querier [detail]
		Bridge

9.2.5.3IGMP v2 Snooping Last-Member-Interval

When receive Leave Message from host in IGMP v2, Querier sends Specific Query and check whether there is Multicast Group Member. Basically, if Membership Report about First Specific Query does not come, after 1 second, send second Specific Query. If there is no response also, it deleted from Membership Table. Last-member-interval is the value to regulate gap between first Specific Query and second Specific Query. By limiting Inter- val value, IGMP v2 function and fast Leave can be implemented.

To send IGMP Query message and configure the respond time, use the following com- mand.

Command	Mode		Description
ip igmp snooping last-member-		Configures the time of registering in multicast group
query-interval <100-10000>		after sending Join message on the system. (unit: ms)
	Global
ip igmp snooping vlan VLANS		Configures	the time of registering in multicast group
last-member-query-interval
		after sending Join message on a VLAN interface.
<100-10000>

i

If you configure ip igmp snooping fast-leave, it is meaningless to register time as multi- cast group.

To release the waiting time for respond after sending IGMP Query message, use the fol- lowing command.

	Command	Mode	Description
no ip igmp snooping last-			Returns to the default time of registering Join message
member-query-interval			in multicast group after sending it.
		Global
no ip	igmp snooping vlan		Returns to the default time of registering Join message
VLANS	last-member-query-
			after sending it on a VLAN interface.
interval

A50010-Y3-C150-2-7619 293