| 摘 要 交换以太网是新近发展起来的先进网络技术。它在保证与传统以太网协议兼容的前提下，提高网络利用率，减少网络资源争夺造成的冲突，使网络性能大幅度提高，以满足各类数据信息传输的要求。以交换以太网技术为架构的新经济宽带IP城域网建设接入方案，使网络运行变得更加高效，具有更强的可用性。以便使运营商在合理成本下开展网络建设工作，同时通过多种有效方式提高网络的可管理性，降低网络的管理复杂程度，大幅度的降低网络的运行维护成本。并通过灵活的计费方式体现经济性原则。 关键字：交换以太网，IP城域网，网络管理 Abstract： Switched Ethernet is the advanced network technology. Switched Ethernet may improve the rate of using and may reduce contention collision during the message transmitting on the channel based on the traditional Ethernet protocol. It can also improve the network performance great to satisfy all kinds of information. The IP MAN project, based on Switched Ethernet technology, is getting more effective and usability while the message is transferred on the physical media. Switched Ethernet supplies multi-means to improve the management of network and cut down complex degree or costs of network maintenance so that the proprietors construct network reasonable costs. Switched Ethernet embodies economical principle by flexible counts. The key word: Switched Ethernet，The IP MAN ，Management of network. |
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