This counter tracks the number of fragments smaller than the minimum fragment size of 64 bytes received across the gamma interface and discarded, per WT-159 attribute aEthRxSmallFragments, and can experience discontinuities at re-initialization. Admins monitor this to detect undersized, malformed fragments arriving on a bonded Ethernet link. For example, a nonzero and growing count suggests a peer device or line issue is generating runt fragments on the bond.