With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiCircEntry
Cisco IS-IS Circ Entry
1.3.6.1.4.1.9.10.118.1.3.2.1
An ciiCircEntry exists for each circuit used by Integrated IS-IS on this system.
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiCircEntry 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.
