Unit 5.1 Basic of Internet Unit 5.2 More on Computer Networks Unit 5.3 Network Architecture

• Distance Vector • Link State • Routing Hierarchy

• CIDR IP addressing • Forwarding examples • IP Packet Format

Bridging Internetworks Methods for packet forwarding

 Overview of Network Security  Cryptographic hash functions  User authentication  SSL  IPSec & IKE  Distributed Denial of Service (DDoS)  Firewall  Reading List

Aloha Ethernet MAC Collisions Ethernet Frames

1. Physical layer. (Encoding) 2. Datalink layer introduction, framing, error coding, MAC, switched networks. 3. Broadcast-networks, home networking

Modulation. Bandwidth limitations. Frequency spectrum and its use. Multiplexing. Media: Copper, Fiber, Optical, Wireless. Coding. Framing

• Motivation for sockets • What’s in a socket? • Working with socket • Concurrent network applications • Project 1

复旦大学：《计算机网络 Computer Networking》课程电子教案（PPT课件讲稿）03 Design Philosophy & Applications