With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwspConnTraceEgressCallRef
cwsp Conn Trace Egress Call Ref
1.3.6.1.4.1.351.140.1.2.14.4.1.6
This object shows the Egress port's call reference.
Back to CISCO-WAN-SVC-MIB MIB page.
IPHost Network monitor allows you to monitor cwspConnTraceEgressCallRef 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.