问题标题:
英语翻译Ifyoucouldalwayscountonanendlessstreamofframes,oneflagbytemightbeenough.Butwhatifaframeends(withaflagbyte)andtherearenonewframesfor15minutes.Howwillthereceiverknowthatthenextbyteisactuallythest
问题描述:
英语翻译
Ifyoucouldalwayscountonanendlessstreamofframes,oneflagbytemightbeenough.Butwhatifaframeends(withaflagbyte)andtherearenonewframesfor15minutes.Howwillthereceiverknowthatthenextbyteisactuallythestartofanewframeandnotjustnoiseontheline?Theprotocolismuchsimplerwithstartingandendingflagbytes.
陈细松回答:
如果您能总计数在框架一条不尽的小河,一个旗子字节也许是足够.但若架终端(以旗子字节)并且那里是没有新框架15分钟.接收器怎么知道,下个字节实际上是新框架和不仅噪声的开始在线?协议是简单以开始和结尾旗子字节
好象有点不通.哈哈
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