With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cevcNumCfgEvcs
Cisco Ethernet Virtual Connection Num Config Evcs
1.3.6.1.4.1.9.9.613.1.1.2
This object indicates the actual number of EVCs currently configured on the system.
Back to CISCO-EVC-MIB MIB page.
IPHost Network monitor allows you to monitor cevcNumCfgEvcs on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.