With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cgspLinkState
Cisco GSP Link State
1.3.6.1.4.1.9.9.336.1.6.1.1.3
The list of possible links states. 'available' : Traffic may flow over this linkset 'failed' : Traffic management has detected a failure that prevents activating this linkset. 'shutdown' : This linkset has been forced to an unavailable state by an administrative action. 'unavailable': The linkset is currently unable to support traffic. Activation of this linkset will occur as required by protocol.
Back to CISCO-ITP-GSP-MIB MIB page.
IPHost Network monitor allows you to monitor cgspLinkState 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.