Patent ID: 9503381
Filing Date: 2016-11-22
CPC Classification: H04L

Claim Text:
1. An optical line terminal, comprising: an optical receiver that is configured to communicate with a plurality of optical network units via a point-to-multipoint network, the optical receiver further configured to receive a first Ethernet frame having a first preamble followed by a first header, the first preamble of the first Ethernet frame including first control data associated with network traffic contained within the first Ethernet frame; and a network interface that is coupled to a network node in a metro or core network, the network interface configured to transmit to the network node in the metro or core network a second Ethernet frame prepared using the first Ethernet frame, the second Ethernet frame having a second preamble followed by a second header, the second preamble being created to retain at least part of the first control data in the first preamble of the first Ethernet frame and to include second control data associated with the network traffic, the second control data being different from the first control data, wherein the first control data and the second control data provide end-to-end labeling for the network traffic.