HIGH SPEED OPTICAL ETHERNET FOR THE MAN AND THE WAN

摘要

Data networking service providers worldwide are deploying Ethernet technology to offer wide-area network (WAN) services to business and residential customers within metropolitan regions as well as to offer long distance WAN connectivity. Though Ethernet is a widely used LAN technology, its adoption for WAN services has generated much interest as well as some confusion in the data networking industry. To provide a common framework for metropolitan-area (or metro) and wide area Ethernet, this paper presents a service-centric approach to Ethernet WAN services and defines four canonical services.