With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swMSTPPortExternalPathCost
Switch MSTP Port External Path Cost
1.3.6.1.4.1.171.12.15.2.4.1.5
The contribution of this port to the path cost of paths towards the CIST root which include this port.
Back to MSTP-MIB MIB page.
IPHost Network monitor allows you to monitor swMSTPPortExternalPathCost 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.
