Teaching Plan Name Zhang Yu-fei Academic Year 2013-2013 Term 2 Date 2013.03.08 Period 3-4 Textbook COMPUTER NETWORK 10计算机科学与技术本科 Content Chapter1计算机网络和因特网 Teaching Objectives 了解网络接入方式，网络传输介质：熟DydLs的概念：熟主干网概念 掌握网络数据交换方式。 Key points Packet switching.circuit switching Poin Delay and Loss in packet-switched networks Content for self study Some reference hyperlinks,http://www.cisco.com/ivered/ec/td/do/ Teaching equipment Multimedia Related knowledge Intemet Teaching methods 启发式、讨论式教学 Outlines.requirements and time allocation 复习上次课的重要内容 5分钟 I3 The Network Core(网络核心) 1.3.1 Circuit Switching.Packet Switching.and Message Switching 10分钟 The fundamental question:how is data transferred through net? r call:telephone ne “"chunks" 1.32 Routing in Data Network 10分钟 Goal:move packets among routers from source to destination datagram network: destination address deteines next hop roues may change analogy:driving.asking directions virtual circuit network: 10分钟 each packet camies tag (virtual circuit ID),tag determines next hop fixed path determined at call setup time.remains fixed thru call (重点详解数报 与线路交换方式对比讲解)》 I.4 Access Network and Physical Media(接入网和物理媒体》 1.4.1 Access Network residential access nets institutional access networks (school,company)10 mobile access networks 3 Teaching Plan Name Zhang Yu-fei Academic Year 2013-2013 Term 2 Date 2013.03.08 Period 3-4 Textbook COMPUTER NETWORK Specialty and Stratification 10 计算机科学与技术 本科 Content Chapter 1 计算机网络和因特网 Teaching hours 2 Objectives 了解网络接入方式，网络传输介质；熟悉 Delay and Loss 的概念；熟悉主干网概念； 掌握网络数据交换方式。 Key points Packet switching, circuit switching Points difficult to understand Delay and Loss in packet-switched networks Content for self study Some reference hyperlinks, http://www.cisco.com/univercd/cc/td/doc/ Teaching equipment Multimedia Related knowledge Internet Teaching methods 启发式、讨论式教学 Outlines, requirements and time allocation 复习上次课的重要内容 1.3 The Network Core（网络核心） 1.3.1 Circuit Switching, Packet Switching, and Message Switching The fundamental question: how is data transferred through net? Circuit switching: dedicated circuit per call: telephone net Packet-switching: data sent thru net in discrete “chunks” 1.3.2 Routing in Data Network Goal: move packets among routers from source to destination datagram network: destination address determines next hop routes may change during session analogy: driving, asking directions virtual circuit network: each packet carries tag (virtual circuit ID), tag determines next hop fixed path determined at call setup time, remains fixed thru call routers maintain per-call state （重点讲解数据报交换方式的特点，与线路交换方式对比讲解） 1.4 Access Network and Physical Media（接入网和物理媒体） 1.4.1 Access Network residential access nets institutional access networks (school, company) mobile access networks 5 分钟 10 分钟 10 分钟 10 分钟 10 分钟