计算机网络英文课件：Chapter6 The Transport Layer.ppt

Chapter 6 The Transport Layer

College of Computer Science

Chongqing University

Contents

•

6.1 The Transport Service

•

6.2 Elements of Transport Protocols

transport service that is more reliable than the underlying network service.

Using this new network connection, it can send a query to its peer asking

which data arrived and which did not, and then pick up from where it left

off

2. The transport layer allows several concurrent

applications to use the transport service.

3. Provides a common interface to application writers,

regardless of the underlying network layer.

In essence, an application writer can write code once using the transport

layer primitive and use it on different networks (but with the same