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1.引言城域网是高度竞争和开放的网络环境,受用户和应用驱动,基本特征是业务类型多样化,业务流向流量具有不确定性。随着网络的不断融合和新业务的涌现,现有城域网逐渐向层次化和分组化的方向演进。另一方面,以太网技术以其良好的经济性、互通性和易用性等优势得到了普遍应用。近年来以太网技术,特别是电信级以太网在全球的发展和应用不断加快。本文针对城域网优化中的需求进行分析,结合电信级以太网的发展现状,探讨了烽火网络电信级以太网解决方案应用于城域网优化改造中的方案、特点和策略。
1. INTRODUCTION MAN is a highly competitive and open network environment driven by users and applications. Its basic characteristics are diversification of business types and uncertainty of traffic flows. With the continuous convergence of networks and the emergence of new services, the existing metropolitan area networks gradually evolve toward a hierarchical and grouping direction. On the other hand, Ethernet technology has been widely used because of its good economy, interoperability and ease of use. In recent years, Ethernet technology, especially Carrier Ethernet, has been accelerating worldwide. This text analyzes the demand in the metropolitan area network optimization, and combines the development status of the carrier Ethernet, discusses the scheme, characteristics and tactics of the application of the beacon network carrier Ethernet solution in the metropolitan area network optimization and reformation.