With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoDlswTConnConfigTable
cisco Data Link Switching T Connection Config Table
1.3.6.1.4.1.9.10.9.1.2.2
This table defines the transport connections that will be initiated or accepted by this DLSw. Structure of masks allows wildcard definition for a collection of transport connections by a conceptual row. For a specific transport connection, there may be multiple of conceptual rows match the transport address. The `best' match will the one to determine the characteristics of the transport connection.
Back to CISCO-DLSW-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoDlswTConnConfigTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.