With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ons15501TrapLogEntryDirection
ons15501 Trap Log Entry Direction
1.3.6.1.4.1.1869.11.11.3.2.1.3
Whether the trap is being asserted or cleared. Please note that some traps don't have a direction. (e.g. configuration changed).
Back to ONS15501-MIB MIB page.
IPHost Network monitor allows you to monitor ons15501TrapLogEntryDirection on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.