This counter tracks the number of fragments that don't fit the sequence expected by the frame assembly function, discarded with the frame buffer flushed to the next valid frame start, per WT-159 attribute aEthRxBadFragments, and can experience discontinuities at re-initialization. Admins monitor this to detect fragment reassembly errors on the bonded Ethernet link that force the receiver to resynchronize. For example, a rising count suggests fragment sequencing problems, possibly from a noisy or degraded bonded pair.