With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rprSpanProtectionDuration
rpr Span Protection Duration
1.0.8802.17.1.1.1.1.4.1.7
The total amount of time protection was active on the span interface. The discontinued counter value is indicated by the ifCounterDiscontinuityTime value.
Back to IEEE-802DOT17-RPR-MIB MIB page.
IPHost Network monitor allows you to monitor rprSpanProtectionDuration 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.