H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 171)

155
4. Click Apply.
Table 63 Configuration items
Item Description
VLAN ID This field displays the ID of the VLAN to be configured.
IGMP snooping
Enable or disable IGMP snooping in the VLAN.
You can proceed with the subsequent configurations only if Enable is selected
here.
Version
By configuring an IGMP snooping version, you actually configure the versions
of IGMP messages that IGMP snooping can process.
• IGMP snooping version 2 can process IGMPv1 and IGMPv2 messages, but
not IGMPv3 messages, which will be flooded in the VLAN.
• IGMP snooping version 3 can process IGMPv1, IGMPv2, and IGMPv3
messages.
Drop Unknown
Enable or disable the function of dropping unknown multicast packets.
Unknown multicast data refers to multicast data for which no entries exist in the
IGMP snooping forwarding table.
• With the function of dropping unknown multicast data enabled, the device
drops all the unknown multicast data received.
• With the function of dropping unknown multicast data disabled, the device
floods unknown multicast data in the VLAN to which the unknown multicast
data belong.
Querier
Enable or disable the IGMP snooping querier function.
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, thereby implementing IGMP
querier-related functions.
Query interval Configure the IGMP query interval.
General Query Source IP Source IP address of IGMP general queries.
Special Query Source IP Source IP address of IGMP group-specific queries.
Configuring IGMP snooping on a port
1. Select Network > IGMP snooping from the navigation tree to enter the basic configuration page.
2. Click the Advanced tab to enter the page shown in Figure 134 .