With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiSysType
Cisco IS-IS Sys Type
1.3.6.1.4.1.9.10.118.1.1.1.2
At which levels is the Intermediate System running? This object follows the replaceOnlyWhileDisabled behavior.
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiSysType 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.