With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
sonetLineCurrentStatus
sonet Line Current Status
1.3.6.1.2.1.10.39.1.3.1.1.1
This variable indicates the status of the interface. The sonetLineCurrentStatus is a bit map represented as a sum, therefore, it can represent multiple defects simultaneously. The sonetLineNoDefect should be set if and only if no other flag is set. The various bit positions are: 1 sonetLineNoDefect 2 sonetLineAIS 4 sonetLineRDI
Back to SONET-MIB MIB page.
IPHost Network monitor allows you to monitor sonetLineCurrentStatus 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.