With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
fcIfInvalidCrcs
Cisco Fibre Element If Invalid Crcs
1.3.6.1.4.1.9.9.289.1.2.1.1.6
The number of invalid CRCs detected by the FC-Port. Loop ports should not count CRC errors passing through when monitoring.
Back to CISCO-FC-FE-MIB MIB page.
IPHost Network monitor allows you to monitor fcIfInvalidCrcs on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco wireless switches right now.