TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 User Guide - Page 168
IGMP Authentication, Last Member Query, Times, Source IP, VLAN ID Select, Select, VLAN ID
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Last Member Query Times: Enter the times of sending specific query frames by IGMP Snooping Querier. At receiving a leave frame, a specific query frame will be sent by IGMP Snooping Querier. If a report frame is received before sending specific frames number reaches "Last Member Query Times", the switch will still treat the port as group member and stop sending specific query frames to the port, otherwise the port will be removed from forward-ports of the IP multicast group. Last Member Query Source IP: Enter the source IP of the specific query frame sent by IGMP Snooping Querier. It should not be a multicast IP or a broadcast IP. IGMP Snooping Querier Table VLAN ID Select: Click the Select button to quick-select the corresponding port based on the VLAN ID you entered. Select: VLAN ID: Select the desired entry. It is multi-optional. Displays the ID of the VLAN that enables IGMP Snooping Querier. Query Interval: Displays the Query Interval of the IGMP Snooping Querier. Max Response Time: Displays the maximal time for the host to respond to a general query frame sent by IGMP Snooping Querier. General Query Source IP: Displays the source IP of the general query frame sent by IGMP Snooping Querier. Last Member Query Interval: Displays the time interval of sending specific query frames by IGMP Snooping Querier. Last Member Query Times: Displays the times of sending specific query frames by IGMP Snooping Querier. Last Member Query Source IP: Displays the source IP of the specific query frame sent by IGMP Snooping Querier. 10.1.9 IGMP Authentication IGMP Authentication (Internet Group membership Authentication Protocol) is a multicast authentication protocol used to authenticate users who want to join the limited multicast source. On this page you can configure IGMP Authentication feature for port. Choose the menu Multicast→IGMP Snooping→IGMP Authentication to load the following page. 158