CONTENTS LANS POINT-TO- POINT WANS SWITCHED WANS CONNECTING DEVICES

Network is divided into several smaller subnetworks Each subnetwork(subnet) has its own subnetwork address Hierarchy in IP addressing IP addresses are designed with two levels of hierarchy

Internet Protocol (IP) Unreliable Connectionless Best-effort delivery No error checking

一、掌握:协议、层次、接口与网络体系结构的基本概念 二、掌握:网络体系结构的层次化研究方法 三、掌握:OSI参考模型及各层的基本服务功能 四、掌握:TCP/IP参考模型的层次划分、各层的基本服务

广西医科大学：《计算机网络 Computer Networking》课程教学资源（PPT课件讲稿）CHAPTER 9 COMMUNICATIONS CIRCUITS

2.1 Introduction 2.2 definition of network 2.4 NETWORKS CLASSIFIED BY TOPOLOGY 2-5 NETWORKS CLASSIFIED BY 2.5.2 Public Networks 2.6 Other Types Of Networks 2.6.3 Backbone Network 2.7 Voice network 2.8 HYBRID NETWORKS 2.9 INTERCONNECTING NETWORKS

一、掌握:局域网传输介质的分类与特点 二、掌握:局域网组网需要的基本设备 三、掌握:基本的局域网组网方法 四、了解:局域网结构化布线技术的基本概念

一、了解:网络操作系统的基本概念 二、掌握: Windows NT操作系统的主要特点 三、掌握: NetWare操作系统的主要特点 四、了解:UNIX操作系统的主要特点 五、了解: Linux操作系统的主要特点

CONTENTS INTRODUCTION CLASSFUL ADDRESSING OTHER ISSUES A SAMPLE INTERNET

Real-Time Transport Protocol Real-time traffic v.S. multimedia traffic Real-time communication is the almost simultaneous production and use of the data, ignoring the short delay in transmission