With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swMSTPPortAdminEdgePort
Switch MSTP Port Admin Edge Port
1.3.6.1.4.1.171.12.15.2.4.1.7
The value of the Edge Port parameter. A value of TRUE indicates that this port should be assumed as an edge-port and a value of FALSE indicates that this port should be assumed as a non-edge-port
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IPHost Network monitor allows you to monitor swMSTPPortAdminEdgePort 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.