ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,549,649, issued on Feb. 10, was assigned to GRAPHCORE Ltd. (Bristol, Great Britain).
"Variable frame headers" was invented by Bjorn Dag Johnsen (Oslo, Norway) and Brian Edward Manula (Bekkestua, Norway).
According to the abstract* released by the U.S. Patent & Trademark Office: "In order to provide for the extension of either the MAC address or the VLAN identifier as required, a sliding cursor functionality between the MAC address and the VLAN identifier is provided. The MAC address may be extended by borrowing bits conventionally used for representing part of the VLAN identifier. Similarly, VLAN identifier may be extended by borrowing bits conventionally used for representing part o...