With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swMSTPStpForwardDelay
Switch MSTP Stp Forward Delay
1.3.6.1.4.1.171.12.15.1.5
This value, controls how long a port changes its spanning state from blocking to learning state and from learning to forwarding state. Note that the range for this parameter is related to MaxAge
Back to MSTP-MIB MIB page.
IPHost Network monitor allows you to monitor swMSTPStpForwardDelay 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 WiFi routers right now.