With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cnsInpSrcFailClear
cns Inp Src Fail Clear
1.3.6.1.4.1.9.9.761.1.2.1
This object indicates the clear status of a signal failure event. A value of 'true' means a signal failure event reported on a clock source has been cleared. A value of 'false' means a signal event has been reported on a clock source.
Back to CISCO-NETSYNC-MIB MIB page.
IPHost Network monitor allows you to monitor cnsInpSrcFailClear on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco routers right now.
