以太网交换机基础培训教材 Catalog 目 录 1 以太网概述 ............................................................................................................................................. 6 2 以太网的基础知识 ................................................................................................................................. 6 2 .1 MAC地址 .............................................................................................................................................. 6 2 .2 以太网帧的帧格式 ............................................................................................................................... 7 2 .2 .1 以太网Ⅱ ............................................................................................................................... 8 2 .2 .2 带有802.2逻辑链路控制的IEEE 802.3 ............................................................................. 8 2 .2 .3 IEEE 802.3子网访问协议（以太网SNAP） .................................................................... 8 2 .2 .4 Novell以太网 ........................................................................................................................ 9 2 .3 CSMA/CD ............................................................................................................................................. 9 2 .4 冲突域和广播域 ................................................................................................................................. 1 0 2 .5 以太网的典型设备-HUB .................................................................................................................... 1 0 2 .6 全双工以太网 ..................................................................................................................................... 1 1 3 二层交换机的基本原理 ........................................................................................................
