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摘要：INTERNET的飛速發(fā)展和信息家電及后PC時(shí)代概念的提出，使得信息終端的多元化已經(jīng)成為不可抵擋的趨勢(shì)。近年來(lái)，學(xué)術(shù)界己意識(shí)到互聯(lián)網(wǎng)不能停留在信息管理的層面，所以美國(guó)著名的網(wǎng)絡(luò)公司Echelon(埃施朗公司)提出“Bringing the Internet to life”,即“把互聯(lián)網(wǎng)帶到生活中”的口號(hào)。在這種形勢(shì)下，家用電器等嵌入式設(shè)備的Internet網(wǎng)絡(luò)化就成了目前網(wǎng)絡(luò)發(fā)展的一個(gè)重要方向和必然結(jié)果。為此，本文對(duì)嵌入式設(shè)備聯(lián)網(wǎng)的TCP/IP協(xié)議進(jìn)行了討論研究。
本文首先對(duì)嵌入式TCP/IP的特點(diǎn)和發(fā)展動(dòng)態(tài)進(jìn)行了介紹，然后從嵌入式領(lǐng)域的角度對(duì)TCP/IP協(xié)議進(jìn)行了較全面的分析，提出了一個(gè)TCP/IP網(wǎng)絡(luò)組件的系統(tǒng)模型。
本文對(duì)TCP/IP協(xié)議族的一些基本協(xié)議如ARP, IP, ICMP, TCP, UDP等協(xié)議都做了詳細(xì)分析，并且根據(jù)嵌入式領(lǐng)域的一些特殊要求，提出了這些協(xié)議的實(shí)時(shí)性實(shí)現(xiàn)算法，并在不違反協(xié)議標(biāo)準(zhǔn)的前提下，對(duì)傳統(tǒng)實(shí)現(xiàn)算法做了某些取舍和修改。

關(guān)鍵詞：嵌入式系統(tǒng)；TCP/IP協(xié)議棧；實(shí)時(shí)性


TCP/IP protocol from view of embedded field

Abstract：With the bursting of Internet and the new concepts of information consumer electronics and post-PC era, the diversifying of information terminals has become inevitable. In
recent years, academe has realized that Internet can't stay on information management level. So America famous network corporation Echelon brings forward the slogan “Bring the Internet to life”. In this condition, adding Internet networking capabilities to embedded devices such as appliances has become an important direction and inevitable trend of current network development. Therefore, this paper discusses and researches the TCP/IP protocol for embedded Internet connectivity.
At first the paper introduces the characteristics and developing situation of embedded TCP/IP, then in detail analyzes TCP/IP protocol from view of embedded field, and brings up a system model of embedded TCP/IP network component.
In this paper, it also has a detail research on some basic protocol such as ARP, IP, ICMP, TCP, UDP etc. Then, it brings up some real-time implementing algorithms on the special requirement of embedded field, and improves traditional implement algorithms without going against protocol standard.
Key Words: embedded system; TCP/IP; real-time

目 錄
摘要.........................................................................2
關(guān)鍵詞.......................................................................2
ABSTRACT.....................................................................3
KEY WORDS....................................................................3
1緒 論......................................................................4
1.1 TCP/IP概述...........................................................4
1.2 嵌入式TCP/IP的發(fā)展現(xiàn)狀..............................................4
1.3 課題研究的意義.......................................................5
2 TCP/IP協(xié)議技術(shù).............................................................6
2.1 網(wǎng)絡(luò)分層結(jié)構(gòu).........................................................6
2.1.1 OSI七層參考模型................................................6
2.1.2 TCP/IP參考模型.................................................7
2.2 TCP/IP網(wǎng)絡(luò)協(xié)議.......................................................7
2.2.1 嵌入式TCP/IP協(xié)議...............................................8
2.2.2 ARP協(xié)議........................................................8
2.2.3 IP協(xié)議.........................................................9
2.2.4 ICMP協(xié)議......................................................10
2.2.5 UDP/ TCP協(xié)議...................................................10
3 嵌入式TCP/IP總體框架設(shè)計(jì).................................................12
3.1 嵌入式TCP/IP網(wǎng)絡(luò)系統(tǒng)結(jié)構(gòu)...........................................12
3.2 總體數(shù)據(jù)流程........................................................12
3.3 嵌入式TCP/IP協(xié)議實(shí)現(xiàn)...............................................13
3.4 基本協(xié)議框架設(shè)計(jì)....................................................14
3.4.1 網(wǎng)絡(luò)接口層實(shí)現(xiàn)................................................14
3.4.2 ARP協(xié)議實(shí)現(xiàn)...................................................14
3.4.3 IP協(xié)議實(shí)現(xiàn)....................................................15
3.4.4 ICMP協(xié)議實(shí)現(xiàn)..................................................16
3.4.5 TCP協(xié)議實(shí)現(xiàn)...................................................17
3.4.6 UDP協(xié)議實(shí)現(xiàn)...................................................18
4 嵌入式TCP/IP協(xié)議研究設(shè)計(jì).................................................20
4.1 地址解析協(xié)議ARP詳細(xì)設(shè)計(jì)............................................20
4.1.1 概述..........................................................20
4.1.2 函數(shù)詳細(xì)設(shè)計(jì)..................................................20
4.2 網(wǎng)際協(xié)議IP協(xié)議詳細(xì)設(shè)計(jì)............................................24
4.2.1 概述.........................................................24
4.2.2 函數(shù)設(shè)計(jì)實(shí)現(xiàn).................................................24
4.3 用戶(hù)數(shù)據(jù)報(bào)協(xié)議UDP詳細(xì)設(shè)計(jì)............