With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swPoESystemInfoEntry
Switch PoE System Info Entry
1.3.6.1.4.1.171.12.24.2.1.1
A list of PoE system information based on Unit ID.
Back to PoE-MIB MIB page.
IPHost Network monitor allows you to monitor swPoESystemInfoEntry 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.