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电气和电子工程师协会(IEEE)提出了期待已久的802.3ab标准,这个标准将使千兆以太网能够在铜缆上面运行。但如何在快速以太网占统治地位的领域应用该项技术仍是问题的焦点所在。给铜缆定义千兆以太网标准的工程前后持续了将近一年的时间。此工程的提出是由于那些需要千兆以太网传输速度的网络管理员,不想放弃他们网络中广泛使用的五类铜缆。对他们来说,用光纤线缆来替代铜缆过于昂贵了。 802.3ab标准的另外一个巨大的推动力来自千兆以太网联盟。此组织包括Alteon公司,3Com公司,Bay网络公司,Cisco系统公司,康柏电脑公司,以及英特尔公司等,提供基于光纤的千兆以
The Institute of Electrical and Electronics Engineers (IEEE) has proposed the long-awaited 802.3ab standard that will enable Gigabit Ethernet to run on copper cables. But how to apply the technology in the area where Fast Ethernet dominates remains the focus of the issue. The project of defining Gigabit Ethernet standards for copper lasted nearly a year before and after. This project is due to those network administrators who need Gigabit Ethernet transmission speed and do not want to give up the five types of copper cables widely used in their network. For them, using fiber optic cable instead of copper is too expensive. Another huge impetus for the 802.3ab standard comes from the Gigabit Ethernet Alliance. The group includes Alteon, 3Com, Bay Networks, Cisco Systems, Compaq Computer, and Intel Corp. to provide fiber-based Gigabit