With IPHost Network Monitor you can run simple snmp requests against a D-Link device in your network.
ringStationControlOwner
ring Station Control Owner
1.3.6.1.2.1.16.10.1.1.9
The entity that configured this entry and is therefore using the resources assigned to it.
Back to TOKEN-RING-RMON-MIB MIB page.
IPHost Network monitor allows you to monitor ringStationControlOwner 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.