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TB000002光网络METRO-以太网原理ISSUE1TB000002光网络METRO-以太网原理ISSUE1.0华为技术TB000002光网络METRO-以太网原理ISSUE1.0目录目录课程说明....................................................................................................................................1课程介绍......................................................................................................................................1课程目标......................................................................................................................................1第1章概述................................................................................................................................21.1以太网的设计目标.................................................................................................................21.2以太网基本技术.............……