计算机网络：自顶向下 配套PPTChapter_4_V7.01.pptx

Chapter 4Network Layer:The Data PlaneA note on the use of these Powerpoint slides:We’re making these slides freely available to all (faculty, students, readers). They’re in PowerPoint form so you see the animations; and can add, modify, and delete slides (including this one) and slide content to suit your needs. They obviously represent a lot of work on our part. In return for use, we only ask the following:Computer Networking: A Top Down Approach If you use these slides (e.g., in a class) that you mention their source (after all, we’d like people to use our book!)If you post any slides on a www site, that you note that they are adapted from (or perhaps identical to) our slides, and note our copyright of this material.Thanks and enjoy! JFK/KWR All material copyright 1996-2016 J.F Kurose and K.W. Ross, All Rights Reserved7th edition Jim Kurose, Keith RossPearson/Addison WesleyApril 2016Network Layer: Data Plane4-Chapter 4: outline4.4 Generalized Forward and SDNmatchactionOpenFlow examples of match-plus-action in action4.1 Overview of Network layerdata planecontrol plane4.2 What’s inside a router4.3 IP: Internet Protocoldatagram formatfragmentationIPv4 addressingnetwork address translationIPv6Network Layer: Data Plane4-Chapter 4: network layerchapter goals: understand principles behind network layer services, focusing on data plane:network layer service modelsforwarding versus routinghow a router worksgeneralized forwardinginstantiation, implementation in the InternetNetwork Layer: Data Plane4-networkdata linkphysicalnetworkdata linkphysicalnetworkdata linkphysicalnetworkdata linkphysicalnetworkdata linkphysicalnetworkdata linkphysicalnetworkdata linkphysicalnetworkdata linkphysicalnetworkdata linkphysicalnetworkdata linkphysicalnetworkdata linkphysicalapplicationtransportnetworkdata linkphysicalapplicationtransportnetworkdata linkphysicalNetwork layertransport segment from sending to receiving host on sending side encapsulates segments into datagramson receiving s