With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwsLinePrevious24HrESs
cws Line Previous24 Hr E Ss
1.3.6.1.4.1.351.150.3.1.2.3.1.1
Number of errored seconds encountered in previous 24 hour interval.
Back to CISCO-WAN-SONET-MIB MIB page.
IPHost Network monitor allows you to monitor cwsLinePrevious24HrESs 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.