With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiISAdjIndex
Cisco IS-IS IS Adj Index
1.3.6.1.4.1.9.10.118.1.6.1.1.1
A unique value identifying the IS adjacency from all other such adjacencies on this circuit. This value is automatically assigned by the system when the adjacency is created.
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiISAdjIndex 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.