With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rprIfChangeSummarySpanChanges
rpr If Change Summary Span Changes
1.0.8802.17.1.1.1.1.5.5
Number of times any instance of rprSpanChanges changed. 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 rprIfChangeSummarySpanChanges 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.
