Configure IGMP Snooping in VLAN

You can query and configure IGMP snooping information in VLANs.

Context

By default, IGMP snooping is disabled on a switch. You need to enable global IGMP snooping on the switch before using this function. By default, IGMP snooping is disabled in a VLAN after global IGMP snooping is enabled. Therefore, you need to enable IGMP snooping in the VLAN.

Procedure

Query IGMP snooping information.
1. Choose Service Management > IGMP Snooping > Configure IGMP Snooping of VLAN in the navigation tree to open the Configure IGMP Snooping of VLAN page.
2. Set the search criteria.
3. Click Query to display all the matching records.

Configure IGMP snooping in a VLAN.

Choose Service Management > IGMP Snooping > Configure IGMP Snooping of VLAN in the navigation tree to open the Configure IGMP Snooping of VLAN page.

Select a record and click Configure to open the Configure IGMP Snooping page.

Table 1 describes the parameters on the Configure IGMP Snooping page.

**Table 1** Configure IGMP Snooping
Parameter	Description
VLAN ID	Indicates the ID of a VLAN. The VLAN ID cannot be changed. You can select multiple VLANs each time. NOTE: The VLAN must exist. If only one VLAN is selected, the IGMP configuration in the VLAN is displayed on the Configure IGMP Snooping page. If multiple VLANs are selected, the default IGMP snooping configuration is displayed.
Enable IGMP Snooping	Indicates whether to enable IGMP snooping. The options are Enable and Disable. NOTE: Before enabling IGMP snooping in a VLAN, enable global IGMP snooping. After IGMP snooping is enabled in a VLAN, this function takes effect only on Ethernet interfaces in this VLAN.
Max Response Time	Indicates the maximum response time of IGMP Query messages. The maximum response time controls the deadline for a host to send an IGMP Membership Report message. A proper maximum response time enables hosts to rapidly respond to IGMP Query messages and prevent the congestion caused by a large number of Response messages sent at the same time. You can adjust the aging time of member interfaces by setting the maximum response time.
IGMP Robust Count	Indicates the IGMP robustness variable. By setting the IGMP robustness variable, you can: Specify the number of times the querier sends a Group-Specific Query message, which prevents packet loss on the network. Adjust the aging time of member interfaces.
Query Interval	Indicates the interval for sending IGMP Query messages.
Router Aging Time	Indicates the aging time of a router interface.

Set the parameters.
Click OK.