CS470A Week-8

Assignment 8: The Network Layer

Prepare for MidTerm Exam (which contains all material up to and including Chapter 4 Section 4)

Read Textbook Chapter 4-1, 4-2, 4-3, 4-4

Read PowerPoint Slides for Chapter 4-1, 4-2, 4-3, 4-4

* Answer Chapter 4 Textbook Review Questions: R1, 3, 4, 8, 9, 11

<Week 8 Study>

Chapter 4 The Network Layer 305

4.1 Introduction 306

4.1.1 Forwarding and Routing 308

4.1.2 Network Service Models 310

4.2 Virtual Circuit and Datagram Networks 313

4.2.1 Virtual-Circuit Networks 314

4.2.2 Datagram Networks 317

4.2.3 Origins of VC and Datagram Networks 319

4.3 What’s Inside a Router? 320

4.3.1 Input Processing 322

4.3.2 Switching 324

4.3.3 Output Processing 326

4.3.4 Where Does Queuing Occur? 327

4.3.5 The Routing Control Plane 331

4.4 The Internet Protocol (IP): Forwarding and Addressing in the Internet 331

4.4.1 Datagram Format 332

4.4.2 IPv4 Addressing 338

4.4.3 Internet Control Message Protocol (ICMP) 353

4.4.4 IPv6 356

4.4.5 A Brief Foray into IP Security 362