With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swMSTPPortAdminHelloTime
Switch MSTP Port Admin Hello Time
1.3.6.1.4.1.171.12.15.2.4.1.2
The amount of time between the transmission of BPDU by this node on any port when it is the root of the spanning tree or trying to become so, in units of hundredths of a second.
Back to MSTP-MIB MIB page.
IPHost Network monitor allows you to monitor swMSTPPortAdminHelloTime 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 IP cameras right now.