With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cevcPortMaxNumEVCs
Cisco Ethernet Virtual Connection Port Max Num EV Cs
1.3.6.1.4.1.9.9.613.1.2.1.1.2
This object indicates the maximum number of EVCs that the interface can support.
Back to CISCO-EVC-MIB MIB page.
IPHost Network monitor allows you to monitor cevcPortMaxNumEVCs 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.