TP-Link T1700X-16TS T1700X-16TSUN V1 User Guide - Page 127
Multicast VLAN
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The following entries are displayed on this screen: VLAN Config VLAN ID: Enter the VLAN ID to enable IGMP snooping for the desired VLAN. Router Port Time: Specify the aging time of the router port. Within this time, if the switch doesn't receive IGMP query message from the router port, it will consider this port is not a router port any more. By default, it is 0 and the global router-time will be used. Member Port Time: Specify the aging time of the member port. Within this time, if the switch doesn't receive IGMP report message from the member port, it will consider this port is not a member port any more. By default, it is 0 and the global member-time will be used. Router Ports: Specify the static router port which is mainly used in the network with stable topology. VLAN Table Select: Select the desired VLAN ID for configuration. It is multi-optional. VLAN ID: Displays the VLAN ID. Router Port Time: Displays the router port time of the VLAN. Member Port Time: Displays the member port time of the VLAN. Static Router Ports: Displays the static router ports of the VLAN. Dynamic Router Ports: Displays the dynamic router ports of the VLAN. Note: The settings here will be invalid when multicast VLAN is enabled. Configuration procedure: Step Operation 1 Enable IGMP snooping function 2 Configure the multicast parameters for VLANs Description Required. Enable IGMP snooping globally on the switch and for the port on Multicast→IGMP Snooping→Snooping Config and Port Config page. Required. Configure the multicast parameters for VLANs on Multicast→IGMP Snooping→VLAN Config page. If a VLAN has no multicast parameters configuration, it indicates the IGMP snooping is not enabled in the VLAN, thus the multicast data in the VLAN will be broadcasted. 8.1.4 Multicast VLAN In old multicast transmission mode, when users in different VLANs apply for join the same multicast group, the multicast router will duplicate this multicast information and deliver each VLAN owning a receiver one copy. This mode wastes a lot of bandwidth. 116