With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cfcmPortClass2RxFrjtFrames
Fibre Channel Management Port Class2 Rx Frjt Frames
1.3.6.1.4.1.9.10.999999.1.4.1.10
The number of times that F_RJT was returned to this port as a result of a Class 2 frame that was rejected by the fabric. Note that this counter will never increment for an F_Port.
Back to CISCO-FC-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor cfcmPortClass2RxFrjtFrames 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.