Querier
Enable or disable the IGMP snooping querier function.
In an IP multicast network that runs IGMP, a Layer 3 device is elected as the IGMP
querier to send IGMP queries, so that all Layer 3 multicast devices can establish
and maintain multicast forwarding entries, ensuring correct multicast traffic
forwarding at the network layer.
On a network without Layer 3 multicast devices, no IGMP querier-related function
can be implemented because a Layer 2 device does not support IGMP. To
address this issue, you can enable IGMP snooping querier on a Layer 2 device so
that the device can generate and maintain multicast forwarding entries at data
link layer for correct multicast traffic forwarding at data link layer.
Query interval Configure the IGMP general query interval.
General Query Source IP Specify the source IP address of general queries.
Special Query Source IP Specify the source IP address of group-specific queries.
Configuring IGMP snooping port functions
1. Select Network > IGMP snooping from the navigation tree.
2. Click the Advanced tab.
Figure 244 Configuring IGMP snooping port functions
3. Configure the parameters as described in Table 85.
4. Click Apply.
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