Research And Implementation Of Light Weight TCP/IP Protocol Based On Micro Operating System

With the rapid development of the computer network technology and the electronic technology, adding Internet networking capabilities to embedded devices such as mobile computing laptops and smart sensors has become an important direction and inevitable trend of current network development. This paper discusses and researches the TCP/IP protocol for embedded Internet connectivity.At first this paper introduces the basic knowledge of the standard TCP/IP protocol and analyzes its function. According to the characteristics of embedded system, network communication software based on micro operating system which is called light weight TCP/IP protocol is presented, and the architecture of this protocol and its key technologies are described. Then, this paper has a detail research on some basic protocol such as ARP, IP, ICMP, TCP and UDP, etc, and the implementation of all modules, including the process of input and output, is discussed in detail. Our light-weight TCP/IP improves traditional implement algorithms without going against protocol standard.This paper implements the embedded TCP/IP protocol by software, and our implementation has the character of stabilization, high efficiency, small-size and security. The function and performance of our implementation's TCP/IP network component is also tested throughout. Finally, we summarized our research works and discussed the future works.