With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cssTraceEntry
css Trace Entry
1.3.6.1.4.1.9.9.126.1.3.2.1
An entry in the trace table. Entries exist for active sonet lines. The objects in this table are used to verify continued connection between the two ends of the line.
Back to CISCO-SONET-MIB MIB page.
IPHost Network monitor allows you to monitor cssTraceEntry on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.