介绍了常用的局域网络测试命令，列举了解决网络故障的实例，并对网络管理策略进行了探讨。

The testing orders of local -area network(LAN)in common use are introduced and examples solving network malfunctions are enumerated and the management strategies of network are researched.

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SOA借用了网络管理和IT基础设施管理等其他信息技术领域的一些概念，比如策略、服务水平协议和服务质量。

SOA borrows concepts such as Policy, service Level Agreement and Quality of service from other aspects of Information Technology such as network management and managing it infrastructure.

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这是与之前的 Lotus Sametime 功能的基本差异，而且它通过对公共和其他公司 IM 网络的策略管理访问，提供了更大的管理控制。

This is a fundamental difference from prior Lotus Sametime functionality and provides much greater administrative control through policy-managed access to public and other company IM networks.

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