With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciscoDlswTConnTcpConfigTable
cisco Data Link Switching T Connection Tcp Config Table
1.3.6.1.4.1.9.10.9.1.2.4.1.1
This table defines the TCP transport connections that will be either initiated by or accepted by this DSLw. It augments the entries in ciscoDlswTConnConfigTable whose domain is ciscoDlswTCPDomain.
Back to CISCO-DLSW-MIB MIB page.
IPHost Network monitor allows you to monitor ciscoDlswTConnTcpConfigTable 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.