With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
sdlcLSOperLastModifyTime
sdlc LS Operational Last Modify Time
1.3.6.1.2.1.41.1.2.2.1.14
This object describes the value of sysUpTime when this link station definition was last modified. If the link station has not been modified, then this value shall be zero.
Back to SNA-SDLC-MIB MIB page.
IPHost Network monitor allows you to monitor sdlcLSOperLastModifyTime 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.