With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cbESsCounts
Cisco BERT E Ss Counts
1.3.6.1.4.1.9.9.185.1.1.2.1.13
Number of 1 second interval during the BER test that at least one bit error was detected in the received data pattern.
Back to CISCO-BERT-MIB MIB page.
IPHost Network monitor allows you to monitor cbESsCounts 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.