With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiSysLevelTable
Cisco IS-IS Sys Level Table
1.3.6.1.4.1.9.10.118.1.2.1
Level specific information about the System.
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiSysLevelTable on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco switches right now.
