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本文介绍设计企业级网络需要考虑的几方面问题，包括主干网技术的选择、其它园区或整个行业内部的互连，以及与Internet的连接等。
This article describes several aspects that need to be considered in designing an enterprise-class network, including the choice of backbone technology, interconnects within other campus or industry, and connectivity to the Internet.