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<?xml version="1.0" encoding="gb2312"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"/><title>什么是slip和ppp协议?                  turbolinux </title></head><body><center><h1>BBS 水木清华站∶精华区</h1></center><a name="top"></a>发信人:&nbsp;wheregone&nbsp;(猫猫),&nbsp;信区:&nbsp;Embedded&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;什么是slip和ppp协议?&nbsp;(转载)&nbsp;<br />发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Wed&nbsp;Nov&nbsp;14&nbsp;12:05:56&nbsp;2001)&nbsp;<br />&nbsp;<br />【&nbsp;以下文字转载自&nbsp;Circuit&nbsp;讨论区&nbsp;】&nbsp;<br />发信人:&nbsp;wheregone&nbsp;(猫猫),&nbsp;信区:&nbsp;Circuit&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;什么是slip和ppp协议?&nbsp;<br />发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Wed&nbsp;Nov&nbsp;14&nbsp;11:23:32&nbsp;2001)&nbsp;<br />&nbsp;<br />最近我老在想,嵌入式TCP的复杂性问题&nbsp;<br />我觉得既然现在应用这么广&nbsp;<br />而且有时候服务器端也是自己做&nbsp;<br />为什么非要用烦烦的TCP协议呢&nbsp;<br />&nbsp;<br />可不可以自己在UDP上做一个简单的协议?&nbsp;<br />&nbsp;<br />举硬大哥,来写PROTOCOL&nbsp;吧,&nbsp;<br />&nbsp;<br />&nbsp;<br />&nbsp;<br />【&nbsp;在&nbsp;hugehard&nbsp;(承接巡航导弹研发项目)&nbsp;的大作中提到:&nbsp;】&nbsp;<br />∶<i>&nbsp;两个都是串行通信协议。&nbsp;</i><br />∶<i>&nbsp;ppp是点对点协议,&nbsp;</i><br />∶<i>&nbsp;在此之前用slip,&nbsp;</i><br />∶<i>&nbsp;但由于slip有很多固有缺陷,&nbsp;</i><br />∶<i>&nbsp;所以现在一般都用PPP协议了。&nbsp;</i><br />∶<i>&nbsp;你用modem上网时就是执行的ppp协议&nbsp;</i><br />&nbsp;<br />&nbsp;<br />--&nbsp;<br />the&nbsp;longing&nbsp;for&nbsp;love,&nbsp;&nbsp;&nbsp;the&nbsp;search&nbsp;for&nbsp;knowledge,&nbsp;<br />and&nbsp;unbearable&nbsp;pity&nbsp;for&nbsp;the&nbsp;suffering&nbsp;of&nbsp;mankind.&nbsp;<br />------------------------------------------------&nbsp;&nbsp;<br />&nbsp;<br />&nbsp;<br />※&nbsp;来源:·BBS&nbsp;水木清华站&nbsp;smth.org·[FROM:&nbsp;202.120.8.69]&nbsp;<br />发信人:&nbsp;hugehard&nbsp;(承接巡航导弹研发项目),&nbsp;信区:&nbsp;Embedded&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;什么是slip和ppp协议?&nbsp;(转载)&nbsp;<br />发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Wed&nbsp;Nov&nbsp;14&nbsp;15:52:44&nbsp;2001)&nbsp;<br />&nbsp;<br />我写过了啊,关键是UDP不能用在那些对可靠性要求高的地方啊。&nbsp;<br />【&nbsp;在&nbsp;wheregone&nbsp;(猫猫)&nbsp;的大作中提到:&nbsp;】&nbsp;<br />∶<i>&nbsp;【&nbsp;以下文字转载自&nbsp;Circuit&nbsp;讨论区&nbsp;】&nbsp;</i><br />∶<i>&nbsp;发信人:&nbsp;wheregone&nbsp;(猫猫),&nbsp;信区:&nbsp;Circuit&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</i><br />∶<i>&nbsp;标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;什么是slip和ppp协议?&nbsp;</i><br />∶<i>&nbsp;发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Wed&nbsp;Nov&nbsp;14&nbsp;11:23:32&nbsp;2001)&nbsp;</i><br />∶<i>&nbsp;最近我老在想,嵌入式TCP的复杂性问题&nbsp;</i><br />∶<i>&nbsp;我觉得既然现在应用这么广&nbsp;</i><br />∶<i>&nbsp;而且有时候服务器端也是自己做&nbsp;</i><br />∶<i>&nbsp;为什么非要用烦烦的TCP协议呢&nbsp;</i><br />∶<i>&nbsp;可不可以自己在UDP上做一个简单的协议?&nbsp;</i><br />∶<i>&nbsp;举硬大哥,来写PROTOCOL&nbsp;吧,&nbsp;</i><br />&nbsp;<br />&nbsp;<br />--&nbsp;<br />法官大人,我承认,几十年前我家那条大黄狗是和贵国&nbsp;<br />皇帝,也就是你们叫的天皇的老婆发生过非自愿的性关系,&nbsp;<br />但你们举国上下应该感谢而不是控诉我家的大黄狗。&nbsp;<br />要知道,那件事情直接导致了贵国现在天皇的降生呀!!&nbsp;<br />&nbsp;<br />&nbsp;<br />※&nbsp;来源:·BBS&nbsp;水木清华站&nbsp;smth.org·[FROM:&nbsp;162.105.207.122]&nbsp;<br />发信人:&nbsp;wheregone&nbsp;(猫猫),&nbsp;信区:&nbsp;Embedded&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;什么是slip和ppp协议?&nbsp;(转载)&nbsp;<br />发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Wed&nbsp;Nov&nbsp;14&nbsp;17:30:42&nbsp;2001)&nbsp;<br />&nbsp;<br />我的意思是自己做一个类似TCP的协议&nbsp;<br />但是没现在那么复杂的&nbsp;<br />&nbsp;<br />不一定要在UDP上做&nbsp;<br />&nbsp;<br />&nbsp;<br />&nbsp;<br />【&nbsp;在&nbsp;hugehard&nbsp;(承接巡航导弹研发项目)&nbsp;的大作中提到:&nbsp;】&nbsp;<br />∶<i>&nbsp;我写过了啊,关键是UDP不能用在那些对可靠性要求高的地方啊。&nbsp;</i><br />&nbsp;<br />&nbsp;<br />--&nbsp;<br />the&nbsp;longing&nbsp;for&nbsp;love,&nbsp;&nbsp;&nbsp;the&nbsp;search&nbsp;for&nbsp;knowledge,&nbsp;<br />and&nbsp;unbearable&nbsp;pity&nbsp;for&nbsp;the&nbsp;suffering&nbsp;of&nbsp;mankind.&nbsp;<br />------------------------------------------------&nbsp;&nbsp;<br />&nbsp;<br />&nbsp;<br />※&nbsp;来源:·BBS&nbsp;水木清华站&nbsp;smth.org·[FROM:&nbsp;202.120.8.69]&nbsp;<br />发信人:&nbsp;neuronlee&nbsp;(机械化神经元),&nbsp;信区:&nbsp;Embedded&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;什么是slip和ppp协议?&nbsp;(转载)&nbsp;<br />发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Thu&nbsp;Nov&nbsp;15&nbsp;12:09:34&nbsp;2001)&nbsp;<br />&nbsp;<br />TCP恐怕不能用UDP加简单协议来代替由.不同的协议有不同的适用&nbsp;<br />范围.如果你的应用不是面向连接的,自然用UDP就可以,但如果你的&nbsp;<br />应用需要可靠连接,那么你自己在UDP上再实现一个类似协议,结果是&nbsp;<br />要么你的协议不如TCP成熟好用,或者比现成的TCP更复杂.&nbsp;<br />TCP同UDP有本质的区别,UDP就是一个简单的协议,没什么理论的深度.&nbsp;<br />而TCP不同,有&nbsp;些课题是有理论研究的价值的.当然目前的TCP恐怕已经&nbsp;<br />较成熟了.&nbsp;<br />【&nbsp;在&nbsp;wheregone&nbsp;(猫猫)&nbsp;的大作中提到:&nbsp;】&nbsp;<br />∶<i>&nbsp;【&nbsp;以下文字转载自&nbsp;Circuit&nbsp;讨论区&nbsp;】&nbsp;</i><br />∶<i>&nbsp;发信人:&nbsp;wheregone&nbsp;(猫猫),&nbsp;信区:&nbsp;Circuit&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</i><br />∶<i>&nbsp;标&nbsp;&nbsp;题:&nbsp;Re:&nbsp;什么是slip和ppp协议?&nbsp;</i><br />∶<i>&nbsp;发信站:&nbsp;BBS&nbsp;水木清华站&nbsp;(Wed&nbsp;Nov&nbsp;14&nbsp;11:23:32&nbsp;2001)&nbsp;</i><br />∶<i>&nbsp;最近我老在想,嵌入式TCP的复杂性问题&nbsp;</i><br />∶<i>&nbsp;我觉得既然现在应用这么广&nbsp;</i><br />∶<i>&nbsp;而且有时候服务器端也是自己做&nbsp;</i><br />∶<i>&nbsp;为什么非要用烦烦的TCP协议呢&nbsp;</i><br />∶<i>&nbsp;可不可以自己在UDP上做一个简单的协议?&nbsp;</i><br />∶<i>&nbsp;举硬大哥,来写PROTOCOL&nbsp;吧,&nbsp;</i><br />&nbsp;<br />&nbsp;<br />--&nbsp;<br />According&nbsp;to&nbsp;the&nbsp;system&nbsp;log,&nbsp;windows&nbsp;had&nbsp;already&nbsp;started,&nbsp;but&nbsp;<br />it&nbsp;seems&nbsp;to&nbsp;be&nbsp;murdered&nbsp;mysteriously!&nbsp;:-DDDDDDDD&nbsp;<br />&nbsp;<br />&nbsp;<br />※&nbsp;来源:·BBS&nbsp;水木清华站&nbsp;smth.org·[FROM:&nbsp;66.75.17.82]&nbsp;<br />

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