With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
parConnLocalVci
par Connection Local Vci
1.3.6.1.4.1.351.130.3.1.1.4
This object specifies the Virtual Channel Identifier part of the local endpoint connection address.
Back to CISCO-WAN-PAR-MIB MIB page.
IPHost Network monitor allows you to monitor parConnLocalVci on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.