TP-Link T2600G-18TSTL-SG3216 T2600G-18TSUN V1 Configuration Guide - Page 430
(Optional) Configuring Report Message Suppression, Configuring Router Port Time and Member Port Time
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Configuring Layer 2 Multicast IGMP Snooping Configurations For switches that support MLD Snooping, IGMP Snooping and MLD Snooping share the setting of Unknown Multicast, so you have to enable MLD Snooping globally on the Multicast > MLD Snooping > Snooping Config page at the same time. Follow these steps to configure unknown multicast. 1) Configure Unknown Multicast as Forward or Discard. Unknown Multicast 2) Click Apply. Configure the way how the switch processes the multicast data sent to unknown multicast groups as Forward or Discard. Unknown multicast groups are multicast groups whose destination multicast address is not in the multicast forwarding table of the switch. (Optional) Configuring Report Message Suppression Enabling Report Message Suppression can reduce the number of packets in the network. Follow these steps to configure report message suppression. 1) Enable or disable Report Message Suppression globally. Report Message Suppression If this function is enabled, the switch will only forward the first IGMP report message to Layer 3 devices and suppress subsequent IGMP report messages from the same multicast group during one query interval, which reduces the number of IGMP packets. 2) Click Apply. Configuring Router Port Time and Member Port Time Follow these steps to configure the aging time of the router ports and the member ports: 1) Specify the aging time of the router ports. Router Port Time Router ports are ports connected to Layer 3 devices on the switch. The router port ages if the switch does not receive IGMP query message from the router port within the router port time. The switch will no longer consider this port as a router port and delete it from the router port table. The valid values are from 60 to 600 seconds. 2) Specify the aging time of the member ports. Member Port Time 3) Click Apply. Member ports are ports connected to multicast group members on the switch. A port is considered to be a member port when it is added to a multicast group. The member port ages if the switch does not receive IGMP membership report message from the member port within the member port time. The switch will no longer consider this port as a member port and delete it from the multicast forwarding table. The valid values are from 60 to 600 seconds. Configuration Guide 400
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