{"id":66291,"date":"2023-11-28T14:21:28","date_gmt":"2023-11-28T06:21:28","guid":{"rendered":"\/\/www.viralrail.com\/?p=66291"},"modified":"2023-11-28T14:21:44","modified_gmt":"2023-11-28T06:21:44","slug":"sjllccsdxysjdyssm","status":"publish","type":"post","link":"\/\/www.viralrail.com\/blog\/66291.html","title":{"rendered":"\u6570\u636e\u94fe\u8def\u5c42\u4f20\u8f93\u7684\u534f\u8bae\u6570\u636e\u5355\u5143\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"\n

\u3000\u3000\u6570\u636e\u94fe\u8def\u5c42<\/strong>\u662f\u8ba1\u7b97\u673a\u7f51\u7edc\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u5c42\u7ea7\uff0c\u8d1f\u8d23\u5c06\u7f51\u7edc\u5c42\u4f20\u8f93\u7684\u6570\u636e\u5206\u5272\u6210\u9002\u5408\u4f20\u8f93\u7684\u5e27\uff0c\u5e76\u901a\u8fc7\u7269\u7406\u5c42\u5b9e\u73b0\u6570\u636e\u7684\u4f20\u8f93\u3002\u5728\u6570\u636e\u94fe\u8def\u5c42\u4e2d\uff0c\u534f\u8bae\u6570\u636e\u5355\u5143(Protocol Data Unit\uff0c\u7b80\u79f0PDU)<\/strong>\u626e\u6f14\u7740\u5173\u952e\u7684\u89d2\u8272\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u6570\u636e\u94fe\u8def\u5c42\u4f20\u8f93\u7684\u534f\u8bae\u6570\u636e\u5355\u5143\u662f\u4ec0\u4e48\uff0c\u5e76\u63a2\u8ba8\u5176\u5728\u7f51\u7edc\u901a\u4fe1\u4e2d\u7684\u5e94\u7528\u573a\u666f\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e00\u3001\u4ec0\u4e48\u662f\u534f\u8bae\u6570\u636e\u5355\u5143(PDU)<\/h2>\n\n\n\n

\u3000\u3000\u534f\u8bae\u6570\u636e\u5355\u5143\u662f\u6307\u5728\u7279\u5b9a\u5c42\u7ea7\u4e2d\u4f20\u8f93\u7684\u6570\u636e\u5355\u4f4d\u3002\u5728\u6570\u636e\u94fe\u8def\u5c42\u4e2d\uff0c\u534f\u8bae\u6570\u636e\u5355\u5143\u88ab\u79f0\u4e3a\u5e27(Frame)\u3002\u5e27\u662f\u6570\u636e\u94fe\u8def\u5c42\u4e2d\u7684\u6700\u5c0f\u4f20\u8f93\u5355\u4f4d\uff0c\u5305\u542b\u4e86\u6570\u636e\u94fe\u8def\u5c42\u7684\u63a7\u5236\u4fe1\u606f\u548c\u7528\u6237\u6570\u636e\u3002<\/strong>\u5b83\u7531\u6570\u636e\u5b57\u6bb5\u3001\u5e27\u8d77\u59cb\u548c\u7ed3\u675f\u6807\u5fd7\u3001\u5730\u5740\u5b57\u6bb5\u3001\u63a7\u5236\u5b57\u6bb5\u3001\u6821\u9a8c\u5b57\u6bb5\u7b49\u7ec4\u6210\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e8c\u3001\u6570\u636e\u94fe\u8def\u5c42\u4f20\u8f93\u7684\u534f\u8bae\u6570\u636e\u5355\u5143\u7684\u4f5c\u7528<\/h2>\n\n\n\n

\u3000\u30001. \u6570\u636e\u5206\u5272\u4e0e\u91cd\u7ec4<\/strong>\uff1a\u6570\u636e\u94fe\u8def\u5c42\u5c06\u7f51\u7edc\u5c42\u4f20\u8f93\u7684\u6570\u636e\u5206\u5272\u6210\u9002\u5408\u4f20\u8f93\u7684\u5e27\u3002\u8fd9\u6837\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u7684\u4f20\u8f93\u6548\u7387\uff0c\u5e76\u4e14\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u7269\u7406\u4f20\u8f93\u4ecb\u8d28\u5bf9\u6570\u636e\u8fdb\u884c\u9002\u5f53\u7684\u5206\u5272\uff0c\u4ee5\u9002\u5e94\u4e0d\u540c\u7684\u4f20\u8f93\u9700\u6c42\u3002\u5728\u63a5\u6536\u7aef\uff0c\u6570\u636e\u94fe\u8def\u5c42\u53ef\u4ee5\u5c06\u63a5\u6536\u5230\u7684\u5e27\u8fdb\u884c\u91cd\u7ec4\uff0c\u6062\u590d\u539f\u59cb\u7684\u6570\u636e\u3002<\/p>\n\n\n\n

\u3000\u30002. \u9519\u8bef\u68c0\u6d4b\u4e0e\u7ea0\u6b63<\/strong>\uff1a\u534f\u8bae\u6570\u636e\u5355\u5143\u4e2d\u7684\u6821\u9a8c\u5b57\u6bb5\u53ef\u4ee5\u7528\u4e8e\u68c0\u6d4b\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u662f\u5426\u51fa\u73b0\u4e86\u9519\u8bef\u3002\u5e38\u89c1\u7684\u6821\u9a8c\u7b97\u6cd5\u6709\u5faa\u73af\u5197\u4f59\u68c0\u9a8c(CRC)\u548c\u5947\u5076\u6821\u9a8c\u3002\u5982\u679c\u6821\u9a8c\u5931\u8d25\uff0c\u6570\u636e\u94fe\u8def\u5c42\u53ef\u4ee5\u8bf7\u6c42\u91cd\u65b0\u4f20\u8f93\u6570\u636e\uff0c\u6216\u8005\u901a\u8fc7\u7ea0\u9519\u7801\u8fdb\u884c\u9519\u8bef\u7684\u7ea0\u6b63\u3002<\/p>\n\n\n\n

\u3000\u30003. \u6570\u636e\u5e27\u7684\u5b9a\u754c<\/strong>\uff1a\u5e27\u8d77\u59cb\u548c\u7ed3\u675f\u6807\u5fd7\u7528\u4e8e\u6807\u8bc6\u5e27\u7684\u5f00\u59cb\u548c\u7ed3\u675f\uff0c\u786e\u4fdd\u6570\u636e\u94fe\u8def\u5c42\u80fd\u591f\u6b63\u786e\u5730\u8bc6\u522b\u5e27\u7684\u8fb9\u754c\u3002\u8fd9\u5bf9\u4e8e\u591a\u8def\u590d\u7528\u548c\u5206\u7528\u6280\u672f\u6765\u8bf4\u81f3\u5173\u91cd\u8981\u3002<\/p>\n\n\n\n

\u3000\u30004. \u6d41\u91cf\u63a7\u5236\u4e0e\u4f20\u8f93\u901f\u7387\u9002\u914d<\/strong>\uff1a\u6570\u636e\u94fe\u8def\u5c42\u53ef\u4ee5\u6839\u636e\u53d1\u9001\u7aef\u548c\u63a5\u6536\u7aef\u7684\u4f20\u8f93\u80fd\u529b\u8fdb\u884c\u6d41\u91cf\u63a7\u5236\uff0c\u4ee5\u907f\u514d\u6570\u636e\u7684\u4e22\u5931\u6216\u6ea2\u51fa\u3002\u540c\u65f6\uff0c\u6570\u636e\u94fe\u8def\u5c42\u8fd8\u53ef\u4ee5\u6839\u636e\u4f20\u8f93\u4ecb\u8d28\u7684\u7279\u6027\u52a8\u6001\u8c03\u6574\u4f20\u8f93\u901f\u7387\uff0c\u4ee5\u63d0\u9ad8\u4f20\u8f93\u6548\u7387\u3002<\/p>\n\n\n\n

\u3000\u3000\u4e09\u3001\u6570\u636e\u94fe\u8def\u5c42\u4f20\u8f93\u7684\u534f\u8bae\u6570\u636e\u5355\u5143\u7684\u5e94\u7528\u573a\u666f<\/h2>\n\n\n\n

\u3000\u30001. \u4ee5\u592a\u7f51<\/strong>\uff1a\u4ee5\u592a\u7f51\u662f\u4e00\u79cd\u5e38\u7528\u7684\u5c40\u57df\u7f51\u6280\u672f\uff0c\u5b83\u4f7f\u7528\u5e27\u4f5c\u4e3a\u6570\u636e\u94fe\u8def\u5c42\u7684\u534f\u8bae\u6570\u636e\u5355\u5143\u3002\u4ee5\u592a\u7f51\u5e27\u5305\u542b\u4e86\u76ee\u6807\u5730\u5740\u3001\u6e90\u5730\u5740\u3001\u534f\u8bae\u7c7b\u578b\u3001\u6570\u636e\u5b57\u6bb5\u7b49\u4fe1\u606f\uff0c\u53ef\u4ee5\u5728\u5c40\u57df\u7f51\u4e2d\u5b9e\u73b0\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n\n\n\n

\u3000\u30002. PPP\u534f\u8bae<\/strong>\uff1a\u70b9\u5bf9\u70b9\u534f\u8bae(PPP)\u662f\u4e00\u79cd\u5e38\u7528\u7684\u5e7f\u57df\u7f51\u8fde\u63a5\u534f\u8bae\uff0c\u5b83\u4f7f\u7528\u5e27\u4f5c\u4e3a\u6570\u636e\u94fe\u8def\u5c42\u7684\u534f\u8bae\u6570\u636e\u5355\u5143\u3002PPP\u5e27\u5305\u542b\u4e86\u540c\u6b65\u5b57\u8282\u3001\u5e27\u8d77\u59cb\u548c\u7ed3\u675f\u6807\u5fd7\u3001\u5730\u5740\u5b57\u6bb5\u3001\u63a7\u5236\u5b57\u6bb5\u3001\u534f\u8bae\u5b57\u6bb5\u3001\u6821\u9a8c\u5b57\u6bb5\u7b49\u4fe1\u606f\uff0c\u53ef\u4ee5\u5728\u5e7f\u57df\u7f51\u4e2d\u5b9e\u73b0\u53ef\u9760\u7684\u70b9\u5bf9\u70b9\u901a\u4fe1\u3002<\/p>\n\n\n\n

\u3000\u30003. HDLC\u534f\u8bae<\/strong>\uff1a\u9ad8\u7ea7\u6570\u636e\u94fe\u8def\u63a7\u5236(HDLC)\u662f\u4e00\u79cd\u6570\u636e\u94fe\u8def\u5c42\u534f\u8bae\uff0c\u5e38\u7528\u4e8e\u4e32\u884c\u94fe\u8def\u7684\u6570\u636e\u4f20\u8f93\u3002HDLC\u5e27\u5305\u542b\u4e86\u540c\u6b65\u5b57\u8282\u3001\u5e27\u8d77\u59cb\u548c\u7ed3\u675f\u6807\u5fd7\u3001\u5730\u5740\u5b57\u6bb5\u3001\u63a7\u5236\u5b57\u6bb5\u3001\u4fe1\u606f\u5b57\u6bb5\u3001\u6821\u9a8c\u5b57\u6bb5\u7b49\u4fe1\u606f\uff0c\u53ef\u4ee5\u5728\u4e32\u884c\u94fe\u8def\u4e2d\u5b9e\u73b0\u9ad8\u6548\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n\n\n\n

\u3000\u30004. Wi-Fi<\/strong>\uff1aWi-Fi\u662f\u4e00\u79cd\u65e0\u7ebf\u5c40\u57df\u7f51\u6280\u672f\uff0c\u5b83\u4f7f\u7528\u5e27\u4f5c\u4e3a\u6570\u636e\u94fe\u8def\u5c42\u7684\u534f\u8bae\u6570\u636e\u5355\u5143\u3002Wi-Fi\u5e27\u5305\u542b\u4e86\u76ee\u6807\u5730\u5740\u3001\u6e90\u5730\u5740\u3001\u5e27\u7c7b\u578b\u3001\u6570\u636e\u5b57\u6bb5\u7b49\u4fe1\u606f\uff0c\u53ef\u4ee5\u5728\u65e0\u7ebf\u7f51\u7edc\u4e2d\u5b9e\u73b0\u9ad8\u901f\u7684\u6570\u636e\u4f20\u8f93\u3002<\/p>\n\n\n\n

\u3000\u3000\u7ed3\u8bba\uff1a<\/h2>\n\n\n\n

\u3000\u3000\u534f\u8bae\u6570\u636e\u5355\u5143\u5728\u6570\u636e\u94fe\u8def\u5c42\u4e2d\u626e\u6f14\u7740\u91cd\u8981\u7684\u89d2\u8272\uff0c\u8d1f\u8d23\u5c06\u7f51\u7edc\u5c42\u4f20\u8f93\u7684\u6570\u636e\u8fdb\u884c\u5206\u5272\u3001\u91cd\u7ec4\u3001\u9519\u8bef\u68c0\u6d4b\u548c\u7ea0\u6b63\uff0c\u4ee5\u53ca\u6d41\u91cf\u63a7\u5236\u548c\u4f20\u8f93\u901f\u7387\u9002\u914d\u3002<\/strong>\u5e38\u89c1\u7684\u5e94\u7528\u573a\u666f\u5305\u62ec\u4ee5\u592a\u7f51\u3001PPP\u534f\u8bae\u3001HDLC\u534f\u8bae\u548cWi-Fi\u7b49\u3002\u6df1\u5165\u7406\u89e3\u534f\u8bae\u6570\u636e\u5355\u5143\u7684\u539f\u7406\u548c\u5e94\u7528\u573a\u666f\uff0c\u5bf9\u4e8e\u7f51\u7edc\u901a\u4fe1\u7684\u8bbe\u8ba1\u548c\u5b9e\u73b0\u5177\u6709\u91cd\u8981\u610f\u4e49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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