With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiCircLevelDesIS
Cisco IS-IS Circ Level Des IS
1.3.6.1.4.1.9.10.118.1.4.1.1.7
The ID of the LAN Designated Intermediate System on this circuit at this level. If, for any reason, this system is not partaking in the relevant Designated Intermediate System election process, then the value returned is the zero length OCTET STRING.
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiCircLevelDesIS 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.