With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiCircIfSubIndex
Cisco IS-IS Circ If Sub Index
1.3.6.1.4.1.9.10.118.1.3.2.1.3
A specifier for the part of the interface ifIndex to which this circuit corresponds, such as a DLCI or VPI/VCI. This object cannot be modified after creation
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiCircIfSubIndex on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.