With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
swL2DevAlarmLinkChange
Switch L2 Device Alarm Link Change
1.3.6.1.4.1.171.11.70.5.2.1.3.3
This object determines whether or not to send a trap message when the link was changed. If the object is enabled(3), the Link Change trap is sent by the device when any of its ports link change. The device does not send the trap if this object value is disabled or other.
Back to DES3552-L2MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor swL2DevAlarmLinkChange 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 routers right now.