With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
fcmPortLcClass2RxPrjtFrames
fcm Port Lc Class2 Rx Prjt Frames
1.3.6.1.2.1.10.56.1.5.1.11
The number of times that P_RJT was returned to this port as a result of a Class 2 frame that was rejected at the destination N_Port.
Back to FC-MGMT-MIB MIB page.
IPHost Network monitor allows you to monitor fcmPortLcClass2RxPrjtFrames 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.