href="http://www.osa-jon.org/virtual_issue.cfm?vid=7" Feature Issue on Optical Ethernet (OE). Since the introduction of Ethernet technology in the 1980s, Ethernet has undergone major modifications and recent advances such as the support of 10 G interfaces, the resilient packet ring (RPR) standard, the Ethernet passive optical networks (EPONs), and so on have transformed Ethernet from a dominant local area network (LAN) networking technology to a key, flexible and cost-effective networking technology for metropolitan area networks (MANs). The purpose of this paper is to assess Ethernet maturity for deployment in MANs, based on different assessment criteria such as service provisioning and delivery (scalability issues related to the media access control (MAC) addresses and the supported number of virtual LAN identifiers), network protection and restoration as well as network and service management (provisioning of Ethernet services, fault identification, and monitoring). This assessment is based on a real-case scenario of deploying an advance metropolitan gigabit Ethernet network from a network service provider in Greece, Attica Telecom.
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