This read-create 8-byte OCTET STRING holds the map that assigns each of the eight 802.1p priority values to an egress queue. An admin edits it to control which traffic classes (e.g., voice, video, best-effort) land in which hardware queue on the mapped ports. For example, an admin could set the byte position for priority 6 in this string to direct that priority's voice traffic into the switch's highest-priority queue.