With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
portLinkFaultStatus
port Link Fault Status
1.3.6.1.4.1.9.5.1.4.1.1.22
gigabit link. noFault: Link is up and operational. nearEndFault: The port is enabled but there is no GBIC present or the local port cannot synchronize with the remote end. nearEndConfigFail: The local port has detected a configuration mismatch with the remote end. farEndDisable: The far end is in the disabled state. farEndFault: The remote port is cannot synchronize. farEndConfigFail: The remote port has detected a configuration mismatch with the local end. notApplicable: Link fault status is not applicable on this port.
Back to CISCO-STACK-MIB MIB page.
IPHost Network monitor allows you to monitor portLinkFaultStatus 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.