With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
dot5StatsHardErrors
dot5 Stats Hard Errors
1.3.6.1.2.1.10.9.2.1.12
The number of times this interface has detected an immediately recoverable fatal error. It denotes the number of times this interface is either transmitting or receiving beacon MAC frames.
Back to TOKENRING-MIB MIB page.
IPHost Network monitor allows you to monitor dot5StatsHardErrors on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco firewalls right now.