3Com 2928 User Guide - Page 288

Table 1-2 IGMP snooping configuration items Item IGMP snooping Description 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 1-3. Click the icon corresponding to the VLAN to enter the page you can configure IGMP snooping in the VLAN, as shown in Figure 1-4. Figure 1-4 VLAN configuration Table 1-3 describes the items for configuring IGMP snooping in a VLAN. Table 1-3 Items for configuring IGMP snooping in a VLAN Item VLAN ID IGMP Snooping Version Description This field displays the ID of the VLAN to be configured. Enable or disable IGMP snooping in the VLAN. You can proceed with the subsequent configurations only if Enable is selected here. By configuring an IGMP snooping version, you actually configure the versions of IGMP messages that IGMP snooping can process. z IGMP snooping version 2 can process IGMPv1 and IGMPv2 messages, but not IGMPv3 messages, which will be flooded in the VLAN. z IGMP snooping version 3 can process IGMPv1, IGMPv2, and IGMPv3 messages. 1-6