本书由畅销书作者和网络领域的权威专家Douglas Comer教授编著，全面而系统地介绍了计算机网络知识。全书分5大部分共32章，涵盖的内容广泛，包括网桥、交换、路由与路由协议、多媒体协议与IP技术，以及Web浏览等。本书第5版在前几版的基础上进行了重新组织和全面修订，新增了无线网络协议、网络性能等最新技术主题。本书适合作为高等学校计算机、通信、电子等专业的教材或参考书。 【本书特色】 ·补充数据通信方面的材料，介绍了信息源和信号、传输、调制、调制解调器、复用与解复用，接入与互连技术。 ·新增网络性能一章，包括QoS和区分服务。 ·扩充无线联网技术的篇幅，包括蓝牙，Wi-Fi、WiMax和802.11-2007协议。 ·新增网络技术及发展趋势两章内容，涵盖了虚拟化社区网络应用等内容。 ·介绍蜂窝电话网络及其标准，帮助读者了解蜂窝移动通信如何采纳使用因特网协议。 ·介绍如何通过实时传输协议进行多媒体传输。

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