With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rprSpanErrorCountersCurrentTable
rpr Span Error Counters Current Table
1.0.8802.17.1.1.1.5.1
The RPR Errors Current counters table. All attributes in this table are volatile, i.e. will be cleared on system reset.
Back to IEEE-802DOT17-RPR-MIB MIB page.
IPHost Network monitor allows you to monitor rprSpanErrorCountersCurrentTable 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.