With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
ringStationInBeaconErrors
ring Station In Beacon Errors
1.3.6.1.2.1.16.10.2.1.20
The total number of beacon frames sent by this station and detected by the probe.
Back to TOKEN-RING-RMON-MIB MIB page.
IPHost Network monitor allows you to monitor ringStationInBeaconErrors 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.