This read-only counter reports the highest 1-minute rate of total inbound error packets, in packets per minute, observed on this port since tracking began or was last cleared. An admin uses this peak value to catch a brief but severe burst of errors that an averaged error rate would understate. For example, a high portInTotalErrPktsPeak despite a low long-term average error rate on that port suggests an intermittent cabling or duplex-mismatch issue rather than a constant problem.