With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
circuitID
circuit ID
1.3.6.1.4.1.3646.1300.2.1.12.1.1.3
The identity for this circuit. The value is 'shelf.slot.port'.
Back to ASKEY-SYSTEM-MIB MIB page.
IPHost Network monitor allows you to monitor circuitID 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 switches right now.