GBT14399-1993 信息处理系统 数据通信 高级数据链路控制规程 与X.25 LAPB兼容的DTE数据链路规程的描述.pdf

《GBT14399-1993 信息处理系统 数据通信 高级数据链路控制规程 与X.25 LAPB兼容的DTE数据链路规程的描述.pdf》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、UDC681-325L了己Ir中华人民共和国国家标准cB/T14399一93iso7776一1986信息处理系统数据通信高级数据链路控制规程与X.25LAPB兼容的DTE数据链路规程的描述Informationprocessingsystems-Datacommunication-High-leveldatalinkcontrolprocedures-DescriptionoftheX.25LAPB-compatibleDTEdatalinkprocedures1993一05一11发布1994一01一01实施国

2、家技术监督M发布目次。引言·····················”···”·”·······”·····················”·········”···················⋯⋯(1)1主题内容与适用范围···············‘······，··”················”·············”···········“·········⋯⋯(1)2引用标准·......................................................

3、.................................................(2)3帧结构······“····“·”····.············.”·········，················”·······“··“·········“······⋯⋯(2)3.1标志序列···”·“·································，······“·······”·············“··················⋯⋯(3)3.2地址字段····

4、··“···”····.”········”························”.···········“·········⋯⋯(3)3.3控制字段···“·”·”·········，···········，·······““················⋯⋯，.·”··········“·”·”······”·⋯(3)3.4信息字段·····“·“·······，.·········“·····，”············“，··········”·····“···”·”·········⋯⋯

5、(3)3.5透明性”·······“·”··········“··························一，.·”·········”·”·········“·”······⋯⋯(3)3.6帧检验序列(FCS)字段“·············，，···························“··········，···”····，···，·⋯⋯(4)3.7比特传输顺序············”·············⋯⋯众·..”···”，·..“.·····”..·..·..·.....

6、...·..·.......⋯⋯(4)3.8无效帧........................................................................................................(4)3.9帧放弃······”··························”············“·················”·············”··········“·⋯(4)3.1。帧间时间填充········”······

7、·······”·············“··············”·”·········“·”·”·······“·⋯(4)3.11数据链路信道状态····，，.·“············“···················，·····“·······一，”.⋯⋯(4)4规程要素“·“·············“·············，.”··········“··”············“”·”·······“·”·········”一(5)4.1控制字段格式和状态变量····“·····

8、·····””············”··········”·”·····，.·“·”一(5)4.2探询/终结位的功能···‘，··············，········，，···················，·········，···，·“·········一(6)4.3命令和响应“·”····”······················“·····”··········