Patent ID: 9264521
Filing Date: 2016-02-16
CPC Classification: H04L

Claim Text:
1. A method comprising: receiving, at an ingress port of a network device, a customer frame; generating a first header and a second header based at least in part on a customer local area network identifier and a customer destination address of the customer frame, the first header being a higher layer header than the second header; repurposing at least one field in at least one of the first header or the second header to store a value that is indicative of a Provider Backbone Bridging (PBB) protocol; generating a PBB field based at least in part on the customer local area network identifier; concatenating the first header, the second header, the PBB field, and the customer frame to form a frame; and providing the frame to an egress port of the network device for transmission, wherein the egress port is determined based on at least one of the first header or the second header.