H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 179)

24-7
Table 24-2 describes the IGMP snooping configuration items.
Table 24-2 IGMP snooping configuration items
Item Description
IGMP Snooping Globally enable or disable IGMP snooping.
Return to IGMP snooping configuration task list .
Configuring IGMP Snooping in a VLAN
Select Network > IGMP Snooping in the navigation tree to enter the basic configuration page shown in
Figure 24-3 . Click the icon corresponding to the VLAN to enter the page you can configure IGMP
snooping in the VLAN, as shown in Figure 24-4 .
Figure 24-4 Configure IGMP snooping in the VLAN
Table 24-3 describes the items for configuring IGMP snooping in a VLAN.
Table 24-3 Items for configuring IGMP snooping in a VLAN
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 refer to multicast data for which no entries exist in the IGMP
snooping forwarding table.
With the function of dropping unknown multicast data enabled, the switch drops all the
unknown multicast data received.
With the function of dropping unknown multicast data disabled, the switch floods
unknown multicast data in the VLAN to which the unknown multicast data belong.