This read-only Counter64 records the total number of packets, including malformed ones, received that were between 1024 and 1518 octets inclusive during this bin's period, per its description, the largest bucket within the classic, non-jumbo, Ethernet frame size range. A high share of traffic in this bucket typically reflects near-MTU-sized bulk transfers, since applications commonly pack frames close to the maximum standard size to minimize per-frame overhead when moving large amounts of data. An engineer confirming that a file-transfer-heavy application is actually using efficient, near-maximum frame sizes rather than many small packets would check that this bucket, not the smaller ones, dominates the size distribution during the transfer's bins.