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.
Choose Service Management > IGMP Snooping > Configure IGMP Snooping
in VLAN in the navigation tree to display the Configure IGMP Snooping in VLAN page.
Set the search criteria.
Click Query to display all the
matching records.
Configure IGMP snooping in a VLAN.
Choose Service Management > IGMP Snooping > Configure IGMP Snooping
in VLAN in the navigation tree to display the Configure IGMP Snooping in 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 Enabled and Disabled.
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.