With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swMldSnoopingLastMemberQueryInterval
Switch Mld Snooping Last Member Query Interval
1.3.6.1.4.1.171.12.34.3.2.1.5
The Last Member Query Interval is the Max Response Time inserted into Group-Specific Queries sent in response to Leave Group messages, and is also the amount of time between Group-Specific Query messages.
Back to MLD-SNOOPING-MIB MIB page.
IPHost Network monitor allows you to monitor swMldSnoopingLastMemberQueryInterval on D-Link device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring D-Link access points right now.