With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ons15501InRemotePortName
ons15501 In Remote Port Name
1.3.6.1.4.1.1869.11.11.1.18
Manager initialized string value to identify the the port (on remote chassis) associated with remote connection for optical input. ons15501InRemotePortName would be a ZERO length string if the input link is disabled. To disable the input link details set ons15501InRemoteChassisName to ZERO length string and ons15501InRemoteAgentIpAddr to 0.0.0.0.
Back to ONS15501-MIB MIB page.
IPHost Network monitor allows you to monitor ons15501InRemotePortName 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.