With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dot1agCfmMepDbRMepFailedOkTime
dot1ag Cfm Mep Db R Mep Failed Ok Time
The time (SysUpTime) at which the IFF Remote MEP state machine last entered either the RMEP_FAILED or RMEP_OK state. REFERENCE 12.14.7.6.3:c
Back to IEEE8021-CFM-MIB MIB page.
IPHost Network monitor allows you to monitor dot1agCfmMepDbRMepFailedOkTime 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.