This read-write flag enables or disables Frame-Based GCRA (i.e., early packet discard) for this PXM-managed connection, the connection-level counterpart to the earlier per-channel ingrUpcFGCRAEnable object. Admins enable this for connections carrying frame-based traffic where discarding entire non-conforming frames, rather than scattering cell-level losses, produces cleaner results for upper-layer protocols. For example, enabling ausmConnFGCRAEnable on a data connection ensures that when its traffic exceeds its contracted rate, whole frames are discarded rather than partial ones that upper-layer protocols would have to retransmit anyway.