With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
rmTRLastErrorClass
rm TR Last Error Class
1.3.6.1.4.1.224.5.48
This var contains the error class of the last Token-Ring error reported by the agent.
Back to LANOPTICS-RING-MANAGER-MIB MIB page.
IPHost Network monitor allows you to monitor rmTRLastErrorClass 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.