With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
sonetLineCurrentEntry
sonet Line Current Entry
1.3.6.1.2.1.10.39.1.3.1.1
An entry in the SONET/SDH Line Current table.
Back to SONET-MIB MIB page.
IPHost Network monitor allows you to monitor sonetLineCurrentEntry 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.