With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
oamLoopbackPingOperStatus
oam Loopback Ping Operational Status
1.3.6.1.4.1.9.10.15.1.1.1.21
This object indicates the ping test status.
Back to CISCO-OAM-MIB MIB page.
IPHost Network monitor allows you to monitor oamLoopbackPingOperStatus 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.