This read-only counter reports the highest 1-minute rate of total outbound error packets, in packets per minute, observed on this port since tracking began or was last cleared. An admin checks this alongside portInTotalErrPktsPeak to determine whether a port's error issue is primarily on the transmit or receive side, which points toward different root causes. For example, a high portOutTotalErrPktsPeak with a low inbound error peak on the same port suggests a transmit-side hardware fault rather than a cabling issue affecting both directions equally.