With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
alSyncStatsTxClockErrors
ALTIGA Sync Statistics Tx Clock Errors
1.3.6.1.4.1.3076.2.1.2.32.2.1.20
The number of transmit clock errors on this HDLC interface.
Back to ALTIGA-SYNC-STATS-MIB MIB page.
IPHost Network monitor allows you to monitor alSyncStatsTxClockErrors 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.