Chapter 5.计算机网络(第四版).ppt

Chapter 5. The Network Layer Chapter 5. The Network Layer 5.1 Network Layer Design Issues 5.1.1 Store-and-Forward Packet Switching 5.1.1 Store-and-Forward Packet Switching 5.1.2 Services Provided to the Transport Layer 5.1.3 Implementation of Connectionless Service 5.1.3 Implementation of Connectionless Service 5.1.3 Implementation of Connectionless Service 5.1.4 Implementation of Connection-Oriented Service 5.1.4 Implementation of Connection-Oriented Service 5.1.4 Implementation of Connection-Oriented Service 5.1.5 Comparison of Virtual-Circuit and Datagram Subnets Translation Translation Translation Translation 5.2 Routing Algorithms 5.2 Routing Algorithms 5.2 Routing Algorithms 5.2 Routing Algorithms 5.2.1 The Optimality Principle 5.2.2 Shortest Path Routing 5.2.2 Shortest Path Routing 5.2.2 Shortest Path Routing 5.2.2 Shortest Path Routing 5.2.2 Shortest Path Routing 5.2.2 Shortest Path Routing 5.2.3 Flooding 5.2.3 Flooding 5.2.4 Distance Vector Routing 5.2.4 Distance Vector Routing 5.2.4 Distance Vector Routing 5.2.5 Link State Routing Learning about the Neighbors Measuring Line Cost Building Link State Packets Distributing Link State Packets Distributing Link State Packets 5.3 Congestion Control Algorithms 5.3 Congestion Control Algorithms 5.3 Congestion Control Algorithms 5.3 Congestion Control Algorithms 5.3 Congestion Control Algorithms 5.3.1 General Principles of Congestion Control 5.3.1 General Principles of Congestion Control 5.3.1 General Principles of Congestion Control 5.3.2 Congestion Prevention Policies 5.3.2 Congestion Prevention Policies 通信量整形 通信量整形 leaky bucket leaky bucket leaky bucket token bucket token bucket token bucket token bucket 令牌桶算法与漏桶算法的区别 5.6 The Network Layer in the Internet 5.6.1 The IP Protocol 5.6.1 The IP Protocol 5.6.1 The IP Protocol 5.6.1 The IP Protocol 5.6.2 IP Addresses 5.6.2 IP Addresses Subnet Subnet subnet mask Subnet Subnet NAT—Network Address Translation NAT—Network Address Translation NAT—Network Address Translation