With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ciiLSPTLVChecksum
Cisco IS-IS LSPTLV Checksum
1.3.6.1.4.1.9.10.118.1.9.2.1.3
The 16 bit Fletcher Checksum.
Back to CISCO-IETF-ISIS-MIB MIB page.
IPHost Network monitor allows you to monitor ciiLSPTLVChecksum 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.