This read-write field enables or disables egress cut-through switching on this user lport, the outbound counterpart to lportIgCutThruStatus, allowing the switch to begin transmitting a frame out this port before it has been fully reassembled internally, again defaulting to disabled. An admin enables this on ports where reducing outbound queuing or reassembly delay matters more than the marginal robustness of full store-and-forward, typically paired with enabling ingress cut-through on the corresponding path. For example, enabling both lportIgCutThruStatus and lportEgCutThruStatus on the two ends of a voice PVC minimizes cumulative switching latency across the whole path.