cfcmPortLcClass2TxFbsyFrames 1.3.6.1.4.1.9.10.999999.1.5.1.12

The number of times that F_BSY was generated by this port as a result of a Class 2 frame that could not be delivered because either the Fabric or the destination port was temporarily busy. Note that this counter will never increment for an N_Port.