With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rttMonStatsCollectVerifyErrors
Round Trip Time Monitor Stats Collect Verify Errors
1.3.6.1.4.1.9.9.42.1.3.2.1.7
The number of RTT operation completions received with data that does not compare with the expected data. The completion time of these operations are not accumulated, nor do they increment rttMonStatsCaptureCompletions (in the expected Distribution Bucket). This object has the special behavior as defined by the ROLLOVER NOTE in the DESCRIPTION of the ciscoRttMonMIB object.
Back to CISCO-RTTMON-MIB MIB page.
IPHost Network monitor allows you to monitor rttMonStatsCollectVerifyErrors on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco optical switches right now.