3Com 2928 User Guide - Page 287
Enabling IGMP snooping Globally, Remarks, Network, IGMP Snooping,
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Task Remarks Configuring IGMP Snooping in a VLAN Configuring IGMP Snooping Port Functions Display IGMP Snooping Multicast Entry Information Required Enable IGMP snooping in the VLAN and configure the IGMP snooping version and querier feature. By default, IGMP snooping is disabled in a VLAN. z IGMP snooping must be enabled globally before it can be enabled in a VLAN. z When you enable IGMP snooping in a VLAN, this function takes effect for ports in this VLAN only. Optional Configure the maximum number of multicast groups allowed and the fast leave function for ports in the specified VLAN. z IGMP snooping must be enabled globally before IGMP snooping can be enabled on a port. z IGMP snooping configured on a port takes effect only after IGMP snooping is enabled in the VLAN. Optional Enabling IGMP snooping Globally Select Network > IGMP Snooping in the navigation tree to enter the basic configuration page shown in Figure 1-3. Figure 1-3 Basic IGMP snooping configurations Table 1-2 describes the IGMP snooping configuration items. 1-5
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