The industry has made a concerted effort to bring the simplicity and cost model of Ethernet to the wide area network and to resolve the limitations of Ethernet in the WAN. Metro Ethernet Forum (MEF) was formed in 2001 and today it is a global industry alliance comprising more than 200 organizations including telecommunications service providers, network equipment/software manufacturers, semiconductors vendors and testing organizations [15]. The MEF develops Carrier Ethernet technical specifications and implementation agreements to promote interoperability and deployment of Carrier Ethernet worldwide. The MEF accelerates the worldwide adoption of Carrier-class Ethernet networks and services.