High speed Ethernet based on SONET technology

A high-speed Ethernet using Thin SONET technology as the physical layer carrier makes use the large embedded base of SONET equipment, and is a step forward in integrating WANs, MANs and LANs. The HS Ethernet also takes advantage or current SONET functionality, such as framing, scrambling, integrity, etc. FEC fields are provided in the TOH for achieving a high level of error correction. The HS Ethernet frame comprises a length-type field generated at the PCS sublayer and a HEC field generated at the PMA layer. The frames are routed within a network using the source address, the destination address and a label.