With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cdpGlobalLastChange
Cisco Discovery Protocol Global Last Change
1.3.6.1.4.1.9.9.23.1.3.5
Indicates the time when the cache table was last changed. It is the most recent time at which any row was last created, modified or deleted.
Back to CISCO-CDP-MIB MIB page.
IPHost Network monitor allows you to monitor cdpGlobalLastChange 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.
