With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cwsFELineCurrent24HrESs
cws FE Line Current24 Hr E Ss
1.3.6.1.4.1.351.150.3.1.2.2.1.5
Number of far end errored seconds encountered in current 24 hour interval.
Back to CISCO-WAN-SONET-MIB MIB page.
IPHost Network monitor allows you to monitor cwsFELineCurrent24HrESs on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.