{"id":446,"date":"2023-09-04T15:03:12","date_gmt":"2023-09-04T07:03:12","guid":{"rendered":"https:\/\/blog.taiyang.space\/?p=446"},"modified":"2023-09-04T15:03:13","modified_gmt":"2023-09-04T07:03:13","slug":"%e7%ac%ac5%e7%ab%a0-%e6%95%b0%e6%8d%ae%e9%93%be%e8%b7%af%e5%b1%82","status":"publish","type":"post","link":"https:\/\/blog.taiyang.space\/?p=446","title":{"rendered":"\u7b2c5\u7ae0-\u6570\u636e\u94fe\u8def\u5c42"},"content":{"rendered":"<h2 id='51-\u6570\u636e\u94fe\u8def\u5c42\u6982\u8ff0'>5.1 \u6570\u636e\u94fe\u8def\u5c42\u6982\u8ff0<\/h2>\n<h3 id='511-\u5b9a\u4e49'>5.1.1 \u5b9a\u4e49<\/h3>\n<p>\u94fe\u8def\u5c42\u7684\u4f5c\u7528\uff1a\u63a5\u53d7\u7f51\u7edc\u5c42\u7684\u6570\u636e\u5355\u5143\u5e76\u5c01\u88c5\u6210\u5e27\uff0c\u5e76\u4ea4\u4ed8\u7ed9\u7269\u7406\u5c42\u3002\u63a5\u53d7\u7269\u7406\u5c42\u4f20\u6765\u7684\u5e27\u5e76\u53bb\u6389\u5e27\u5934\u5e27\u5c3e\u53d1\u9001\u7ed9\u7f51\u7edc\u5c42\uff0c\u5b9e\u73b0\u94fe\u8def\u4e4b\u95f4\u6570\u636e\u5e27\u7684\u65e0\u5dee\u9519\u63a5\u53d7\u4e0e\u4f20\u9001\u3002<\/p>\n<p>\u5728\u5206\u5c42\u7684\u7f51\u7edc\u7ed3\u6784\u4f53\u7cfb\u4e2d\u6570\u636e\u4ece\u4e00\u4e2a\u4e3b\u673a\u4f20\u8f93\u5230\u53e6\u5916\u4e00\u4e2a\u4e3b\u673a\u662f\u901a\u8fc7\u9010\u5c42\u89e3\u5c01\u548c\u5c01\u88c5\u5b8c\u6210\u7684\uff0c\u4f46\u662f\u5982\u679c\u53ea\u7814\u7a76\u6570\u636e\u94fe\u8def\u5c42\uff0c\u5219\u53ef\u4ee5\u770b\u6210\u6570\u636e\u6cbf\u76f4\u7ebf\u4ece\u6700\u5de6\u8fb9\u7684\u6570\u636e\u94fe\u8def\u5c42\u4f20\u64ad\u5230\u6700\u53f3\u8fb9\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453494.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u6570\u636e\u94fe\u8def\u5c42\u4fe1\u9053\u7c7b\u578b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453351.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u70b9\u5bf9\u70b9\u4fe1\u9053\u5bf9\u5e94ppp\u534f\u8bae\uff0c\u5e7f\u64ad\u4fe1\u9053\u5bf9\u5e94CSMA\/CD\u548cCSMA\/CA\u534f\u8bae<\/p>\n<h3 id='512'>5.1.2<\/h3>\n<h4 id='1-\u5c01\u88c5\u6210\u5e27'>1. \u5c01\u88c5\u6210\u5e27<\/h4>\n<p>\u5728\u4e94\u5c42\u7f51\u8def\u7ed3\u6784\u4f53\u7cfb\u4e2d\uff0c\u6570\u636e\u8981\u7ecf\u8fc7\u5c01\u88c5\u548c\u89e3\u5c01\u7684\u8fc7\u7a0b\u4ece\u4e00\u4e2a\u4e3b\u673a\u4f20\u8f93\u5230\u53e6\u5916\u4e00\u4e2a\u4e3b\u673a\uff0c\u5728\u5c01\u88c5\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6570\u636e\u94fe\u8def\u5c42\u5c06\u6765\u81ea\u7f51\u7edc\u5c42\u7684\u7f51\u7edc\u5c42\u534f\u8bae\u6570\u636e\u5355\u5143\u6dfb\u52a0\u5e27\u5934\u548c\u5e27\u5c3e\uff0c\u4f7f\u5176\u5c01\u88c5\u6210\u5e27\uff0c\u4f7f\u5f97\u6570\u636e\u5728\u94fe\u8def\u4e0a\u4ee5\u5e27\u4e3a\u5355\u5143\u4f20\u64ad\uff0c\u5982\u4e0b\u56fe\u5c31\u662f\u4ee5\u592a\u7f51V2\u7684MAC\u5e27\u683c\u5f0f\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453398.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='2-\u5dee\u9519\u68c0\u6d4b'>2. \u5dee\u9519\u68c0\u6d4b<\/h4>\n<p>\u5e27\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u51fa\u73b0\u8bef\u7801 \uff0c\u63a5\u6536\u65b9\u4e3b\u673a\u901a\u8fc7\u68c0\u9519\u7801\u53d1\u73b0\u662f\u5426\u51fa\u73b0\u8bef\u7801\uff0c\u53d1\u9001\u65b9\u57fa\u4e8e\u5f85\u53d1\u9001\u7684\u6570\u636e\u548c\u68c0\u9519\u7b97\u6cd5\u8ba1\u7b97\u51fa\u68c0\u9519\u7801\uff0c\u5e76\u5c06\u5176\u5c01\u88c5\u5230\u5e27\u5c3e\uff0c\u63a5\u6536\u65b9\u4e3b\u673a\u5728\u6536\u5230\u5e27\u540e\u53ef\u4ee5\u901a\u8fc7\u68c0\u9519\u7801\u548c\u68c0\u9519\u7b97\u6cd5\u5224\u65ad\u662f\u5426\u51fa\u73b0\u8bef\u7801\u3002\u5982\u4e0a\u56fe\u7684\u4ee5\u592a\u7f51V2\u7684MAC\u5e27\u5e27\u5c3e\u7684FCS\uff08\u5dee\u9519\u68c0\u6d4b\u5e8f\u5217\uff09\u5c31\u662f\u4e00\u4e2a\u68c0\u9519\u7801\u3002<\/p>\n<h4 id='3-\u53ef\u9760\u4f20\u8f93'>3. \u53ef\u9760\u4f20\u8f93<\/h4>\n<p>\u5c3d\u7ba1\u8bef\u7801\u4e0d\u80fd\u5b8c\u5168\u907f\u514d\uff0c\u4f46\u662f\u82e5\u80fd\u5b9e\u73b0\u53d1\u9001\u65b9\u53d1\u9001\u4ec0\u4e48\uff0c\u63a5\u6536\u65b9\u5c31\u80fd\u6536\u5230\u4ec0\u4e48\uff0c\u5c31\u6210\u4e3a\u53ef\u9760\u4f20\u8f93\u3002\u5373\u5728\u51fa\u73b0\u8bef\u7801\u65f6\uff0c\u4f1a\u91c7\u53d6\u63aa\u65bd\u4f7f\u5f97\u63a5\u6536\u65b9\u53ef\u4ee5\u6536\u5230\u6b63\u786e\u7684\u6570\u636e\u3002<\/p>\n<h3 id='513-\u5e7f\u64ad\u4fe1\u9053\u7684\u6570\u636e\u94fe\u8def\u5c42'>5.1.3 \u5e7f\u64ad\u4fe1\u9053\u7684\u6570\u636e\u94fe\u8def\u5c42<\/h3>\n<p>\u534f\u8bae\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453462.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u4e92\u8fde\u8bbe\u5907\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453362.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h2 id='52-\u5c01\u88c5\u6210\u5e27'>5.2 \u5c01\u88c5\u6210\u5e27<\/h2>\n<h3 id='521-\u5b9a\u4e49'>5.2.1 \u5b9a\u4e49<\/h3>\n<p>\u5b9a\u4e49\uff1a \u6307\u6570\u636e\u94fe\u8def\u5c42\u7ed9\u4e0a\u5c42\u4ea4\u4ed8\u4e0b\u6765\u7684\u534f\u8bae\u6570\u636e\u5355\u5143\u6dfb\u52a0\u5e27\u5934\u548c\u5e27\u5c3e\u4f7f\u4e4b\u6210\u4e3a\u5e27\u3002\u5e27\u5934\u548c\u5e27\u5c3e\u5305\u542b\u91cd\u8981\u7684\u63a7\u5236\u4fe1\u606f\uff0c\u6bd4\u5982\u5e27\u5b9a\u754c\u7684\u4f5c\u7528\u3002<\/p>\n<p>\u5982\u4e0b\u56fe\u6240\u793a\u7684\u5e27\u7684\u5934\u548c\u5c3e\u5c31\u5305\u542b\u4e861\u5b57\u8282\u7684\u6807\u5fd7\uff0c\u7528\u4ee5\u8868\u793a\u5e27\u7684\u5f00\u59cb\u548c\u7ed3\u675f\uff0c\u4f46\u5e76\u4e0d\u662f\u6240\u6709\u7684\u5e27\u90fd\u5305\u542b\u6709\u5e27\u5b9a\u754c\u6807\u5fd7\uff0c\u6bd4\u5982\u4ee5\u592a\u7f51V2\u7684MAC\u5e27\u5c31\u4e0d\u5305\u542b\u5e27\u5b9a\u754c\u6807\u5fd7\uff0c\u5728\u7269\u7406\u5c42\uff0c\u4f1a\u7ed9MAC\u5e27\u52a0\u5165\u524d\u5bfc\u7801\uff0c\u5305\u542b\u4e86\u65f6\u9488\u540c\u6b65\u4fe1\u606f\u4ee5\u53ca\u5e27\u5f00\u59cb\u6807\u5fd7\u3002\u53e6\u5916\uff0c\u4ee5\u592a\u7f51\u8fd8\u89c4\u5b9a\u4e86\u5e27\u95f4\u95f4\u9694\u4e3a96\u6bd4\u7279\u65f6\u95f4\u7684\u53d1\u9001\u65f6\u95f4\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453479.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='522-\u900f\u660e\u4f20\u8f93'>5.2.2 \u900f\u660e\u4f20\u8f93<\/h3>\n<p>\u900f\u660e\u4f20\u8f93\uff1a\u6307\u6570\u636e\u94fe\u8def\u5c42\u5bf9\u4e0a\u5c42\u4ea4\u4ed8\u7684\u4f20\u8f93\u6570\u636e\u6ca1\u6709\u4efb\u4f55\u7684\u9650\u5236\uff0c\u5c31\u597d\u50cf\u6570\u636e\u94fe\u8def\u5c42\u4e0d\u5b58\u5728\u4e00\u6837\u3002\u6bd4\u5982\u8bf4\uff0c\u5982\u679c\u4e0a\u5c42\u4ea4\u4ed8\u7684\u6570\u636e\u4e2d\u4e5f\u5b58\u5728\u5e27\u5b9a\u754c\u6807\u5fd7\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff0c\u90a3\u4e48\u63a5\u6536\u65b9\u63a5\u6536\u5230\u7b2c\u4e00\u4e2aflag\u65f6\u8ba4\u4e3a\u5e27\u5f00\u59cb\uff0c\u6ca1\u6709\u9519\u8bef\uff0c\u4f46\u662f\u5f53\u5176\u5c31\u6536\u5230\u7b2c\u4e8c\u4e2aflag\u65f6\u8ba4\u4e3a\u5e27\u7ed3\u675f\u4e86\uff0c\u8fd9\u662f\u4e0d\u6b63\u786e\u7684\u3002\u5982\u679c\u6570\u636e\u94fe\u8def\u5c42\u4e0d\u5bf9\u8fd9\u6837\u7684\u60c5\u51b5\u505a\u51fa\u5904\u7406\uff0c\u5219\u8fd9\u6837\u7684\u4f20\u8f93\u662f\u4e0d\u900f\u660e\u7684\uff0c\u56e0\u4e3a\u5728\u8fd9\u6837\u7684\u60c5\u51b5\u4e0b\uff0c\u8981\u6c42\u4e0a\u5c42\u4ea4\u4ed8\u7684\u4f20\u8f93\u6570\u636e\u4e2d\u4e0d\u80fd\u5305\u542bflag\uff0c\u5426\u5219\u5c31\u4f1a\u51fa\u9519\u3002\u5bf9\u4e8e\u8fd9\u79cd\u60c5\u51b5\uff0c\u4e00\u79cd\u5904\u7406\u65b9\u6cd5\u5c31\u662f\u5bf9\u4e0a\u5c42\u4ea4\u4ed8\u7684\u6570\u636e\u8fdb\u884c\u626b\u63cf\uff0c\u5982\u679c\u53d1\u73b0flag\u5219\u5728\u524d\u9762\u6dfb\u52a0\u8f6c\u4e49\u5b57\u7b26\u5373\u53ef\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453808.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<ul>\n<li>\u9762\u5411\u5b57\u8282\u7684\u7269\u7406\u94fe\u8def\uff0c\u4f7f\u7528\u5b57\u8282\u586b\u5145\u7684\u65b9\u5f0f\u5b9e\u73b0\u900f\u660e\u4f20\u8f93\u3002<\/li>\n<li>\u9762\u5411\u6bd4\u7279\u7684\u7269\u7406\u94fe\u8def\uff0c\u4f7f\u7528\u6bd4\u7279\u586b\u5145\u7684\u65b9\u5f0f\u5b9e\u73b0\u900f\u660e\u4f20\u8f93\uff0c\u6bd4\u5982\u4e0b\u56fe\u4e2d\uff0c\u5e27\u5b9a\u754c\u6807\u5fd7\u5047\u8bbe\u4e3a0111110\uff0c\u5728\u4e0a\u5c42\u4ea4\u4ed8\u7684\u4f20\u8f93\u6570\u636e\u4e2d\u4e5f\u5b58\u5728\u4e24\u4e2a0111110\uff0c\u5219\u53ef\u4ee5\u4f7f\u75280\u6bd4\u7279\u586b\u5145\u7684\u65b9\u5f0f\u5b9e\u73b0\u900f\u660e\u4f20\u8f93\uff0c\u5373\u5728\u8fde\u7eed\u76845\u4e2a1\u540e\u63d2\u5165\u4e00\u4e2a0\uff0c\u4f7f\u5f97\u5e27\u7684\u5b9a\u754c\u7b26\u5728\u5e27\u4e2d\u552f\u4e00\u3002<img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453896.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/li>\n<\/ul>\n<h3 id='523-\u6700\u5927\u4f20\u9001\u5355\u5143'>5.2.3 \u6700\u5927\u4f20\u9001\u5355\u5143<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453060.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h2 id='53-\u5dee\u9519\u68c0\u6d4b'>5.3 \u5dee\u9519\u68c0\u6d4b<\/h2>\n<h3 id='531-\u5b9a\u4e49'>5.3.1 \u5b9a\u4e49<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453511.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='532-\u5947\u5076\u6821\u9a8c\u7565\uff09'>5.3.2 \u5947\u5076\u6821\u9a8c\uff08\u7565\uff09<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453742.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='533-\u5faa\u73af\u5197\u4f59\u6821\u9a8ccrc'>5.3.3 \u5faa\u73af\u5197\u4f59\u6821\u9a8cCRC<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453785.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453930.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453330.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='\u7ec3\u4e60'>\u7ec3\u4e60<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453302.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u8fd9\u91cc\u7684\u4f59\u6570\u53c8\u79f0\u4e3aFCS\uff08\u5dee\u9519\u68c0\u6d4b\u5e8f\u5217\uff09\uff0c\u9664\u6cd5\u4e3a\u4e8c\u8fdb\u5236\u4e0b\u7684\u6a212\u9664\u6cd5\uff0c\u5373 0 \u2013 1 = 1\uff0c 1+1 = 0\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453520.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h2 id='54-\u53ef\u9760\u4f20\u8f93'>5.4 \u53ef\u9760\u4f20\u8f93<\/h2>\n<h3 id='541-\u53ef\u9760\u4f20\u8f93\u7684\u57fa\u672c\u6982\u5ff5'>5.4.1 \u53ef\u9760\u4f20\u8f93\u7684\u57fa\u672c\u6982\u5ff5<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453620.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453583.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='542-\u53ef\u9760\u4f20\u8f93\u5b9e\u73b0\u673a\u5236'>5.4.2 \u53ef\u9760\u4f20\u8f93\u5b9e\u73b0\u673a\u5236<\/h3>\n<p>\u53ef\u9760\u4f20\u8f93\u5b9e\u73b0\u673a\u5236\u4e3b\u8981\u6709 \u505c\u6b62-\u7b49\u5f85\u534f\u8baeSW\uff0c\u56de\u9000N\u5e27\u534f\u8baeGBN\uff0c\u9009\u62e9\u91cd\u4f20\u534f\u8baeSR\u8fd9\u4e09\u79cd\u3002\u8fd9\u4e09\u79cd\u4f20\u8f93\u673a\u5236\u7684\u57fa\u672c\u539f\u7406\u4e0d\u4ec5\u9650\u4e8e\u6570\u636e\u94fe\u8def\u5c42\uff0c\u53ef\u4ee5\u7528\u5230\u8ba1\u7b97\u673a\u7f51\u7edc\u4f53\u7cfb\u7ed3\u6784\u7684\u5404\u5c42\u534f\u8bae\u4e2d\u3002<\/p>\n<h4 id='1-\u505c\u6b62-\u7b49\u5f85\u534f\u8baeswstop-and-wait\uff09'>1. \u505c\u6b62-\u7b49\u5f85\u534f\u8baeSW\uff08Stop-and-Wait\uff09<\/h4>\n<p>\u786e\u8ba4\u548c\u5426\u8ba4\uff1a<\/p>\n<ul>\n<li>\u53d1\u9001\u65b9\u53d1\u9001\u6570\u636e\u7ed9\u63a5\u6536\u65b9\uff0c\u63a5\u6536\u65b9\u63a5\u53d7\u6570\u636e\u5e76\u8fdb\u884c\u8bef\u7801\u68c0\u6d4b\uff0c\u6b64\u65f6\u6709\u4e24\u79cd\u60c5\u51b5\uff1a<\/li>\n<\/ul>\n<ul>\n<ul>\n<li>\u6570\u636e\u6b63\u786e\uff0c\u5219\u5411\u53d1\u9001\u65b9\u53d1\u9001\u786e\u8ba4\u5206\u7ec4\uff0c\u7b80\u79f0ACK<\/li>\n<li>\u6570\u636e\u5b58\u5728\u8bef\u7801\uff0c\u63a5\u6536\u65b9\u4e22\u5f03\u5206\u7ec4\uff0c\u5411\u53d1\u9001\u65b9\u53d1\u9001\u5426\u8ba4\u5206\u7ec4NAK\uff0c\u53d1\u9001\u65b9\u91cd\u4f20\u6570\u636e\u5206\u7ec4\u3002<\/li>\n<\/ul>\n<\/ul>\n<ul>\n<li>\u56e0\u6b64\uff0c\u5728SW\u534f\u8bae\u4e0b\uff0c\u53d1\u9001\u65b9\u53d1\u9001\u5b8c\u5206\u7ec4\u540e\u4e0d\u80fd\u76f4\u63a5\u5c06\u5206\u7ec4\u5220\u9664\uff0c\u800c\u662f\u8981\u7b49\u5f85\u63a5\u6536\u65b9\u53d1\u9001\u786e\u8ba4\u5206\u7ec4\u540e\u624d\u80fd\u5c06\u5176\u5220\u9664\u3002<\/li>\n<\/ul>\n<p>\u8d85\u65f6\u91cd\u4f20\uff1a<\/p>\n<p>\u63a5\u6536\u65b9\u6536\u4e0d\u5230\u6570\u636e\u5206\u7ec4\uff0c\u5c31\u4e0d\u4f1a\u53d1\u9001ACK\u6216NAK\u3002\u5982\u679c\u4e0d\u91c7\u53d6\u5176\u4ed6\u63aa\u65bd\uff0c\u53d1\u9001\u65b9\u5c31\u4f1a\u4e00\u76f4\u5904\u4e8e\u7b49\u5f85\u63a5\u6536\u65b9ACK\u6216NAK\u7684\u72b6\u6001\u3002\u4e3a\u89e3\u51b3\u8be5\u95ee\u9898\uff0c\u53ef\u4ee5\u5728\u53d1\u9001\u65b9\u53d1\u9001\u5b8c\u4e00\u4e2a\u6570\u636e\u5206\u7ec4\u65f6\uff0c\u542f\u52a8\u4e00\u4e2a\u8d85\u65f6\u8ba1\u65f6\u5668\u3002\u82e5\u5230\u4e86\u8d85\u65f6\u8ba1\u65f6\u5668\u6240\u8bbe\u7f6e\u7684\u91cd\u4f20\u65f6\u95f4\u800c\u53d1\u9001\u65b9\u4ecd\u6536\u4e0d\u5230\u63a5\u6536\u65b9\u7684\u4efb\u4f55ACK\u6216NAK\uff0c\u5219\u91cd\u4f20\u539f\u6765\u7684\u6570\u636e\u5206\u7ec4\uff0c\u8fd9\u5c31\u53eb\u505a\u8d85\u65f6\u91cd\u4f20\u3002\u4e00\u822c\u53ef\u5c06\u91cd\u4f20\u65f6\u95f4\u9009\u4e3a\u7565\u5927\u4e8e\u201c\u4ece\u53d1\u9001\u65b9\u5230\u63a5\u6536\u65b9\u7684\u5e73\u5747\u5f80\u8fd4\u65f6\u95f4\u201d\u3002<\/p>\n<p>\u786e\u8ba4\u4e22\u5931\uff1a<\/p>\n<p>\u5047\u5982\u63a5\u6536\u65b9\u6536\u5230\u53d1\u9001\u65b9\u7684\u6b63\u786e\u5206\u7ec4\u540e\u8fd4\u56deACK\uff0c\u4f46\u662f\u8fd4\u56de\u7684ACK\u53d1\u751f\u4e22\u5931\uff0c\u5219\u53d1\u9001\u65b9\u4f1a\u8fdb\u884c\u8d85\u65f6\u91cd\u4f20\uff0c\u63a5\u6536\u65b9\u4f1a\u518d\u6b21\u6536\u5230\u8fd9\u4e2a\u5206\u7ec4\uff0c\u9020\u6210\u5206\u7ec4\u7684\u91cd\u590d\u3002\u4e3a\u907f\u514d\u5206\u7ec4\u91cd\u590d\u7684\u95ee\u9898\uff0c\u5fc5\u987b\u7ed9\u5206\u7ec4\u5e26\u4e0a\u5e8f\u53f7\u3002\u5bf9\u4e8eSW\u534f\u8bae\uff0c\u7531\u4e8e\u6bcf\u53d1\u9001\u4e00\u4e2a\u6570\u636e\u5206\u7ec4\u5c31\u505c\u6b62\u7b49\u5f85\uff0c\u6240\u4ee5\u53ea\u8981\u4fdd\u8bc1\u6bcf\u53d1\u9001\u4e00\u4e2a\u65b0\u7684\u6570\u636e\u5206\u7ec4\uff0c\u5176\u53d1\u9001\u5e8f\u53f7\u4e0e\u4e0a\u6b21\u53d1\u9001\u7684\u6570\u636e\u5206\u7ec4\u7684\u5e8f\u53f7\u4e0d\u540c\u5c31\u53ef\u4ee5\u4e86\uff0c\u56e0\u6b64\u7528\u4e00\u4e2a\u6bd4\u7279\u6765\u7f16\u53f7\u5c31\u591f\u4e86\uff0c\u5373\u75280\u548c1\u8868\u793a\u76f8\u90bb\u7684\u4e24\u4e2a\u5206\u7ec4\u3002<\/p>\n<p>\u786e\u8ba4\u8fdf\u5230\uff1a<\/p>\n<p>\u63a5\u6536\u65b9\u5411\u53d1\u9001\u65b9\u53d1\u9001ACK\uff0c\u4f46\u662f\u51fa\u73b0\u4e86\u5ef6\u8fdf\uff0c\u53d1\u9001\u65b9\u6267\u884c\u4e86\u8d85\u65f6\u91cd\u4f20\uff0c\u7531\u4e8e\u6570\u636e\u5206\u7ec4\u8fdb\u884c\u4e86\u7f16\u53f7\uff0c\u6240\u4ee5\u63a5\u6536\u65b9\u53ef\u4ee5\u5224\u65ad\u6b64\u5206\u7ec4\u4e3a\u91cd\u590d\u7684\u6570\u636e\u5206\u7ec4\uff0c\u5c06\u5176\u4e22\u5f03\u5e76\u5411\u53d1\u9001\u65b9\u53d1\u9001\u4e00\u4e2aACK\uff0c\u4f46\u662f\u5728\u6b64\u4e4b\u524d\u7b2c\u4e00\u6b21\u8fdf\u5230\u7684ACK\u4e5f\u5230\u8fbe\u4e86\u53d1\u9001\u65b9\uff0c\u4e8e\u662fACK\u5c31\u4ea7\u751f\u4e86\u91cd\u590d\u3002\u6240\u4ee5\uff0c\u5bf9\u4e8e\u63a5\u6536\u65b9\u53d1\u9001\u7684ACK\u548cNAK\u4e5f\u90fd\u8981\u8fdb\u884c\u6807\u53f7\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453873.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453854.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>SW\u534f\u8bae\u7684\u4fe1\u9053\u5229\u7528\u7387\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453933.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='2-\u56de\u9000n\u5e27\u534f\u8baegbngo-back-n\uff09'>2. \u56de\u9000N\u5e27\u534f\u8baeGBN\uff08Go-Back-N\uff09<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453633.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>Tips\uff1a\u5982\u679c W_T = 1 \u5219\u5c31\u662fSW\u534f\u8bae\u3002<\/p>\n<p>\u65e0\u5dee\u9519\u60c5\u51b5\uff1a<\/p>\n<ul>\n<li>\u53d1\u9001\u65b9\u5c06\u7f16\u53f7\u4e3a0-5\u7684\u6570\u636e\u5206\u7ec4\u53d1\u9001\u7ed9\u63a5\u6536\u65b9\uff0c\u5e76\u4e14\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u6ca1\u6709\u51fa\u9519\u3002<\/li>\n<li>\u63a5\u6536\u65b9\u63a5\u6536\u7a97\u53e3\u5185\u7684\u6570\u636e\u5206\u7ec4\u5e76\u7ed9\u53d1\u9001\u65b9\u53d1\u9001\u4e00\u4e2a\u9488\u5bf9\u6b64\u5206\u7ec4\u7684\u786e\u8ba4\u5206\u7ec4\uff0c\u7136\u540e\u5c06\u786e\u8ba4\u7a97\u53e3\u5411\u4e0b\u79fb\u52a8\u4e00\u683c\u3002<\/li>\n<li>\u53d1\u9001\u65b9\u63a5\u53d7\u4f20\u6765\u7684\u786e\u8ba4\u5206\u7ec4\uff0c\u6bcf\u63a5\u53d7\u4e00\u4e2a\u786e\u8ba4\u5206\u7ec4\uff0c\u7a97\u53e3\u5c31\u5411\u4e0b\u6ed1\u52a8\u4e00\u683c\uff0c\u8fd9\u6837\u5c31\u6709\u65b0\u7684\u5e8f\u53f7\u843d\u5165\u53d1\u9001\u7a97\u53e3\u3002<\/li>\n<li>\u53d1\u9001\u65b9\u53ef\u4ee5\u5c06\u6536\u5230\u786e\u8ba4\u5206\u7ec4\u7684\u6570\u636e\u5206\u7ec4\u5220\u9664\uff0c\u63a5\u6536\u65b9\u62e9\u673a\u5c06\u6570\u636e\u5206\u7ec4\u4ea4\u4ed8\u4e0a\u5c42\u5904\u7406\u3002<\/li>\n<li>\u7d2f\u8ba1\u786e\u8ba4\u7684\u65b9\u5f0f\uff1a\u63a5\u6536\u65b9\u4e0d\u4e00\u5b9a\u8981\u5bf9\u6536\u5230\u7684\u6570\u636e\u5206\u7ec4\u9010\u4e2a\u53d1\u9001\u786e\u8ba4\uff0c\u800c\u662f\u53ef\u4ee5\u5728\u6536\u5230\u51e0\u4e2a\u6570\u636e\u5206\u7ec4\u540e(\u7531\u5177\u4f53\u5b9e\u73b0\u51b3\u5b9a)\u5bf9\u6309\u5e8f\u5230\u8fbe\u7684\u6700\u540e\u4e00\u4e2a\u6570\u636e\u5206\u7ec4\u53d1\u9001\u786e\u8ba4\u3002ACKn \u8868\u793a\u5e8f\u53f7\u4e3a n \u53ca\u4ee5\u524d\u7684\u6240\u6709\u6570\u636e\u5206\u7ec4\u90fd\u5df2\u6b63\u786e\u63a5\u6536\u3002 \u8fd9\u6837\u7684\u597d\u5904\u662f\u5373\u4f7f\u786e\u8ba4\u5206\u7ec4\u5728\u4f20\u8f93\u7684\u8fc7\u7a0b\u4e2d\u53d1\u751f\u4e86\u4e22\u5931\uff0c\u4e5f\u53ef\u80fd\u4e0d\u7528\u91cd\u4f20\uff0c\u540c\u65f6\u53ef\u4ee5\u51cf\u5c0f\u63a5\u6536\u65b9\u7684\u5f00\u9500\uff0c\u51cf\u5c11\u7f51\u7edc\u8d44\u6e90\u7684\u5360\u7528\u3002\u7f3a\u70b9\u662f\u4e0d\u80fd\u5411\u53d1\u9001\u65b9\u53ca\u65f6\u53cd\u6620\u63a5\u6536\u65b9\u5df2\u7ecf\u6b63\u786e\u63a5\u6536\u7684\u5206\u7ec4\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u6709\u5dee\u9519\u60c5\u51b5\uff1a<\/p>\n<ul>\n<li>\u5047\u5982\u53d1\u9001\u65b9\u4f9d\u6b21\u53d1\u9001\u7f16\u53f7\u4e3a56701\u7684\u6570\u636e\uff0c\u5e76\u4e14\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u7f16\u53f7\u4e3a5\u7684\u6570\u636e\u51fa\u73b0\u4e86\u8bef\u7801\u3002<\/li>\n<li>\u63a5\u6536\u65b9\u53d1\u73b0\u9519\u8bef\u540e\u4e22\u5f035\u53f7\u5206\u7ec4\u3002<\/li>\n<li>\u63a5\u6536\u65b9\u63a5\u6536\u4f59\u4e0b\u7684\u5206\u7ec4\uff0c\u53d1\u73b0\u4e0e\u63a5\u6536\u7a97\u53e3\u4e2d\u7684\u5e8f\u53f7\u4e0d\u5339\u914d\uff0c\u5219\u5168\u90e8\u4e22\u5f03\uff0c\u6bcf\u4e22\u5f03\u4e00\u4e2a\u90fd\u5bf9\u4e4b\u524d\u6309\u5e8f\u63a5\u6536\u7684\u6700\u540e\u4e00\u4e2a\u6570\u636e\u5206\u7ec4\u8fdb\u884c\u786e\u8ba4\uff0c\u5373\u53d1\u9001ACK4 \u3002<\/li>\n<li>\u53d1\u9001\u65b9\u63a5\u6536\u5230ACK4\u540e\uff0c\u7531\u4e8e\u662f\u91cd\u590d\u63a5\u6536\uff0c\u6240\u4ee5\u53d1\u9001\u65b9\u5c31\u77e5\u9053\u4e86\u4e4b\u524d\u53d1\u9001\u7684\u6570\u636e\u5206\u7ec4\u51fa\u73b0\u4e86\u5dee\u9519\uff0c\u4e8e\u662f\u53ef\u4ee5\u4e0d\u7528\u7b49\u8d85\u65f6\u8ba1\u65f6\u5668\u8d85\u65f6\u5c31\u7acb\u523b\u91cd\u4f20\u3002\u81f3\u4e8e\u6536\u5230\u51e0\u4e2a\u91cd\u590d\u786e\u8ba4\u6d88\u606f\u5c31\u7acb\u523b\u91cd\u4f20\uff0c\u7531\u5177\u4f53\u7684\u5b9e\u73b0\u51b3\u5b9a\u3002<\/li>\n<li>\u53d1\u9001\u65b9\u7531\u4e8e\u6ca1\u6709\u63a5\u53d7\u5230\u5206\u7ec4\u7f16\u53f7\u4e3a56701\u7684\u786e\u8ba4\u5206\u7ec4\uff0c\u5219\u4e00\u6bb5\u65f6\u95f4\u540e\u6267\u884c\u8d85\u65f6\u91cd\u4f20\uff08\u4e5f\u53ef\u80fd\u5728\u63a5\u53d7\u5230\u591a\u4e2aACK4\u540e\u76f4\u63a5\u91cd\u4f20\uff09\uff0c\u5c0656701\u5168\u90e8\u91cd\u4f20\u3002<\/li>\n<li>\u7531\u4e8e5\u53f7\u6570\u636e\u53d1\u751f\u9519\u8bef\uff0c\u867d\u71366701\u6ca1\u6709\u51fa\u9519\uff0c\u4f46\u662f\u5168\u90e8\u4e00\u8d77\u8fdb\u884c\u4e86\u91cd\u4f20\uff0c\u8fd9\u5c31\u662f\u6240\u8c13\u7684Go-Back-N\uff0c\u53ef\u89c1\uff0c\u5f53\u901a\u4fe1\u7ebf\u8def\u8d28\u91cf\u4e0d\u597d\u65f6\uff0c\u56de\u9000N\u5e27\u534f\u8bae\u7684\u4fe1\u9053\u5229\u7528\u7387\u4e5f\u4e0d\u9ad8\u3002<\/li>\n<\/ul>\n<p>W_T \u8d85\u8fc7\u53d6\u503c\u8303\u56f4\uff1a<\/p>\n<ul>\n<li>\u5047\u8bbe W_T=8 \uff0c\u5219\u53d1\u9001\u65b9\u4f1a\u4f9d\u6b21\u53d1\u900101234560\u8fd9\u51e0\u4e2a\u6570\u636e\u5206\u7ec4\u3002<\/li>\n<li>\u5047\u8bbe\u4f20\u8f93\u6ca1\u6709\u51fa\u9519\uff0c\u63a5\u6536\u65b9\u53d1\u9001\u786e\u8ba4\u5206\u7ec4ACK7\uff0c\u4e14\u63a5\u53d7\u7a97\u53e3\u6700\u7ec8\u505c\u7559\u5728\u7f16\u53f70\u7684\u4f4d\u7f6e\u3002<\/li>\n<li>\u5982\u679cACK7\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\u4e22\u5931\u4e86\uff0c\u53d1\u9001\u65b9\u8d85\u65f6\u91cd\u4f20012345670\uff0c\u63a5\u6536\u65b9\u4f1a\u6309\u5e8f\u63a5\u53d78\u4e2a\u5206\u7ec4\u3002<\/li>\n<li>\u6b64\u65f6\uff0c\u7531\u4e8e\u63a5\u53d7\u7a97\u53e3\u8fd8\u662f\u57280\u53f7\u4f4d\u7f6e\uff0c\u6240\u4ee5\u63a5\u6536\u65b9\u4f1a\u7ee7\u7eed\u63a5\u53d7\u8fd98\u4e2a\u5206\u7ec4\uff0c\u9020\u6210\u5206\u7ec4\u7684\u91cd\u590d\u3002<\/li>\n<\/ul>\n<p>\u5c0f\u7ed3\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453664.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='3-\u9009\u62e9\u91cd\u4f20\u534f\u8baesrselective-request\uff09'>3. \u9009\u62e9\u91cd\u4f20\u534f\u8baeSR\uff08Selective Request\uff09<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453082.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>Tips\uff1a SR\u534f\u8bae\u4e0d\u80fd\u91c7\u7528\u7d2f\u79ef\u786e\u8ba4\u7684\u65b9\u5f0f\uff0c\u53ea\u80fd\u9010\u4e00\u8fd4\u56de\u786e\u8ba4\u5206\u7ec4\u3002<\/p>\n<p>\u6d41\u7a0b\uff1a<\/p>\n<ul>\n<li>\u53d1\u9001\u65b9\u53d1\u90010123\u8fd94\u4e2a\u5206\u7ec4\uff0c\u5047\u8bbe\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d2\u53f7\u5206\u7ec4\u51fa\u73b0\u9519\u8bef\u3002<\/li>\n<li>\u63a5\u6536\u65b9\u6309\u5e8f\u63a5\u653601\u8fd9\u4e24\u4e2a\u5206\u7ec4\uff0c\u5e76\u8fd4\u56deACK0\u548cACK1\uff0c\u63a5\u6536\u7a97\u53e3\u5411\u53f3\u6ed1\u52a8\u4e24\u4e2a\u4f4d\u7f6e\uff0c\u7531\u4e8e2\u53f7\u51fa\u73b0\u8bef\u7801\uff0c\u5219\u4e22\u5f03\u5206\u7ec4\uff0c\u540c\u65f6\u63a5\u65363\u53f7\u5206\u7ec4\uff0c\u4f46\u662f3\u53f7\u5206\u7ec4\u4e0d\u662f\u6309\u5e8f\u5230\u8fbe\u7684\uff0c\u6240\u4ee5\u63a5\u6536\u7a97\u53e3\u4e0d\u6ed1\u52a8\uff0c\u5982\u4e0b\u56fe\uff1a<img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453006.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/li>\n<li>\u786e\u8ba4\u5206\u7ec4\u4f20\u8f93\u5230\u53d1\u9001\u65b9\uff0c\u53d1\u9001\u65b9\u63a5\u65360\u53f7\u548c1\u53f7\u786e\u8ba4\u5206\u7ec4\uff0c\u53d1\u9001\u7a97\u53e3\u5411\u53f3\u6ed1\u52a8\u4e24\u4e2a\u4f4d\u7f6e\u3002 \u63a5\u7740\uff0c\u53d1\u9001\u65b9\u5c06\u843d\u5165\u53d1\u9001\u7a97\u53e3\u76844\u53f7\u548c5\u53f7\u5206\u7ec4\u53d1\u9001\u51fa\u53bb\uff0c\u540c\u65f6\u5220\u96640\u53f7\u548c1\u53f7\u5206\u7ec4\uff0c\u63a5\u6536\u65b9\u4e5f\u53ef\u62e9\u673a\u5c060\u53f7\u548c1\u53f7\u6570\u636e\u5206\u7ec4\u4ea4\u4ed8\u4e0a\u5c42\u5904\u7406\u3002\u53d1\u9001\u65b9\u518d\u63a5\u53d73\u53f7\u786e\u8ba4\u5206\u7ec4\uff0c\u53d1\u9001\u7a97\u53e3\u4e0d\u4f1a\u79fb\u52a8\uff0c\u56e0\u4e3a\u4e0d\u662f\u6309\u5e8f\u5230\u8fbe\u7684\uff0c\u4f46\u662f\u4f1a\u8bb0\u5f553\u53f7\u6570\u636e\u5206\u7ec4\u5df2\u7ecf\u6536\u5230\u786e\u8ba4\u3002<img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453258.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/li>\n<li>4\u53f7\u548c5\u53f7\u6570\u636e\u5206\u7ec4\u5230\u8fbe\u63a5\u53d7\u65b9\uff0c\u63a5\u6536\u65b9\u63a5\u53d7\u5206\u7ec4\u5e76\u8fd4\u56de\u786e\u8ba4\u5206\u7ec4\uff0c\u4f46\u662f\u63a5\u53d7\u7a97\u53e3\u4e0d\u4f1a\u79fb\u52a8\uff0c\u56e0\u4e3a\u4e0d\u662f\u6309\u5e8f\u5230\u8fbe\u7684\u3002<\/li>\n<li>\u6b64\u65f6\uff0c\u53d1\u9001\u65b9\u9488\u5bf92\u53f7\u6570\u636e\u5206\u7ec4\u7684\u91cd\u4f20\u8ba1\u65f6\u5668\u8d85\u65f6\u4e86\uff0c\u53d1\u9001\u65b9\u91cd\u4f202\u53f7\u5206\u7ec4 \uff0c4\u53f7\u548c5\u53f7\u786e\u8ba4\u5206\u7ec4\u9646\u7eed\u5230\u8fbe\u53d1\u9001\u65b9\uff0c\u53d1\u9001\u65b9\u63a5\u6536\u5e76\u6807\u8bb0\u786e\u8ba4\u63a5\u6536\uff0c\u4f46\u53d1\u9001\u7a97\u53e3\u4e0d\u79fb\u52a8\uff0c\u5982\u4e0b\u56fe\uff1a<img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453478.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/li>\n<li>\u63a5\u6536\u65b9\u63a5\u53d7\u52302\u53f7\u6570\u636e\u5206\u7ec4\uff0c\u63a5\u53d7\u7a97\u53e3\u53ef\u4ee5\u5411\u53f3\u79fb\u52a84\u4e2a\u4f4d\u7f6e\uff0c\u4e8e\u662f\u6709\u65b0\u76846701\u843d\u5165\u63a5\u53d7\u7a97\u53e3\u3002\u540c\u65f6\uff0c\u63a5\u53d7\u65b9\u53d1\u51fa2\u53f7\u786e\u8ba4\u5206\u7ec4\u3002<\/li>\n<li>\u53d1\u9001\u65b9\u63a5\u65362\u53f7\u786e\u8ba4\u5206\u7ec4\uff0c\u53d1\u9001\u7a97\u53e3\u5411\u53f3\u79fb\u52a84\u4e2a\u4f4d\u7f6e\uff0c\u6709\u65b0\u76846701\u843d\u5165\u53d1\u9001\u7a97\u53e3\uff0c\u4e8e\u662f\u53d1\u9001\u65b9\u53d1\u90016701\u6570\u636e\u5206\u7ec4\u3002<img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453595.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/li>\n<\/ul>\n<p>\u7a97\u53e3\u5c3a\u5bf8\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453741.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5c0f\u7ed3\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453177.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h2 id='55-\u70b9\u5bf9\u70b9\u534f\u8baeppp'>5.5 \u70b9\u5bf9\u70b9\u534f\u8baePPP<\/h2>\n<h3 id='551-\u6982\u5ff5'>5.5.1 \u6982\u5ff5<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453819.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453331.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='552-\u5e27\u683c\u5f0f'>5.5.2 \u5e27\u683c\u5f0f<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453371.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='553-\u900f\u660e\u4f20\u8f93'>5.5.3 \u900f\u660e\u4f20\u8f93<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453350.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='1-\u9762\u5411\u5b57\u8282\u7684\u94fe\u8def'>1. \u9762\u5411\u5b57\u8282\u7684\u94fe\u8def<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453586.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='2-\u9762\u5411\u6bd4\u7279\u7684\u94fe\u8def'>2. \u9762\u5411\u6bd4\u7279\u7684\u94fe\u8def<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453845.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='554-\u5dee\u9519\u68c0\u6d4b'>5.5.4 \u5dee\u9519\u68c0\u6d4b<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453684.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='555-\u5de5\u4f5c\u72b6\u6001'>5.5.5 \u5de5\u4f5c\u72b6\u6001<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453743.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h2 id='56-\u4f7f\u7528\u5e7f\u64ad\u901a\u4fe1\u7684\u6570\u636e\u94fe\u8def\u5c42'>5.6 \u4f7f\u7528\u5e7f\u64ad\u901a\u4fe1\u7684\u6570\u636e\u94fe\u8def\u5c42<\/h2>\n<p>\u524d\u9762\u7684PPP\u534f\u8bae\u5bf9\u5e94\u4e8e\u70b9\u5bf9\u70b9\u901a\u4fe1\u7684\u6570\u636e\u94fe\u8def\u5c42\uff0c\u63a5\u4e0b\u6765\u4ecb\u7ecd\u4f7f\u7528\u5e7f\u64ad\u901a\u4fe1\u7684\u6570\u636e\u94fe\u8def\u5c42\u3002<\/p>\n<h3 id='561-\u5c40\u57df\u7f51\u7684\u6570\u636e\u94fe\u8def\u5c42'>5.6.1 \u5c40\u57df\u7f51\u7684\u6570\u636e\u94fe\u8def\u5c42<\/h3>\n<h4 id='1-\u5c40\u57df\u7f51\u6982\u5ff5'>1. \u5c40\u57df\u7f51\u6982\u5ff5<\/h4>\n<p>\u5c40\u57df\u7f51\u6700\u4e3b\u8981\u7684\u7279\u70b9\uff1a\u7f51\u7edc\u4e3a\u4e00\u4e2a\u5355\u4f4d\u6240\u62e5\u6709\uff1b\u5730\u7406\u8303\u56f4\u548c\u7ad9\u70b9\u6570\u76ee\u5747\u6709\u9650\u3002<\/p>\n<p>\u5c40\u57df\u7f51\u5177\u6709\u5982\u4e0b\u4e3b\u8981\u4f18\u70b9\uff1a<\/p>\n<p>1.\u5177\u6709\u5e7f\u64ad\u529f\u80fd\uff0c\u4ece\u4e00\u4e2a\u7ad9\u70b9\u53ef\u5f88\u65b9\u4fbf\u5730\u8bbf\u95ee\u5168\u7f51\u3002<\/p>\n<p>2.\u4fbf\u4e8e\u7cfb\u7edf\u7684\u6269\u5c55\u548c\u9010\u6e10\u5730\u6f14\u53d8\uff0c\u5404\u8bbe\u5907\u7684\u4f4d\u7f6e\u53ef\u7075\u6d3b\u8c03\u6574\u548c\u6539\u53d8\u3002<\/p>\n<p>3.\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u53ef\u9760\u6027\u3001\u53ef\u7528\u6027\u548c\u751f\u5b58\u6027\u3002<\/p>\n<p>\u5c40\u57df\u7f51\u62d3\u6251\u7ed3\u6784\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453340.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5c40\u57df\u7f51\u7684\u4f20\u8f93\u5a92\u4f53\uff1a\u53cc\u7ede\u7ebf\uff08\u4f4e\u901f\uff09\u3001\u5149\u7ea4\uff08\u9ad8\u901f\uff09<\/p>\n<h4 id='2-\u5a92\u4f53\u63a5\u5165\u63a7\u5236mac\u6280\u672f'>2. \u5a92\u4f53\u63a5\u5165\u63a7\u5236MAC\u6280\u672f<\/h4>\n<p>\u5e7f\u64ad\u901a\u4fe1\u5c31\u610f\u5473\u7740\u9700\u8981\u5171\u4eab\u4fe1\u9053\uff0c\u4e3a\u4e86\u4f7f\u4f17\u591a\u7528\u6237\u53ef\u4ee5\u5171\u4eab\u901a\u4fe1\u5a92\u4f53\u8d44\u6e90\uff0c\u4e3b\u8981\u6709\u4ee5\u4e0b\u4e24\u79cd\u6280\u672f\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453690.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5176\u4e2d\u9759\u6001\u5212\u5206\u4fe1\u9053\u6280\u672f\u5728\u7269\u7406\u5c42\u5df2\u7ecf\u8bb2\u8fc7\uff0c\u4e0d\u518d\u4ecb\u7ecd\u3002<\/p>\n<h4 id='3-\u4ee5\u592a\u7f51\u7684\u4e24\u4e2a\u6807\u51c6'>3. \u4ee5\u592a\u7f51\u7684\u4e24\u4e2a\u6807\u51c6<\/h4>\n<p>\u4ee5\u592a\u7f51\u662f\u4e00\u79cd\u57fa\u5e26\u603b\u7ebf\u5c40\u57df\u7f51\uff0c\u4ee5\u65e0\u6e90\u7535\u7f06\u4f5c\u4e3a\u603b\u7ebf\u4f20\u8f93\u6570\u636e\u5e27\uff0c\u5e76\u4ee5\u201d\u4ee5\u592a\u201c\u547d\u540d\uff0c\u5386\u53f2\u4e0a\u6709\u4e24\u79cd\u6807\u51c6\uff1a<\/p>\n<ul>\n<li>DIX Ethernet V2\uff1a\u4e16\u754c\u4e0a\u7b2c\u4e00\u4e2a\u5c40\u57df\u7f51\u4ea7\u54c1\uff08\u4ee5\u592a\u7f51\uff09\u7684\u89c4\u7ea6\u3002<\/li>\n<li>IEEE 802.3\uff1a\u7b2c\u4e00\u4e2a IEEE \u7684\u4ee5\u592a\u7f51\u6807\u51c6\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e24\u79cd\u6807\u51c6\u7684\u786c\u4ef6\u5b9e\u73b0\u53ef\u4ee5\u5728\u540c\u4e00\u4e2a\u5c40\u57df\u7f51\u4e0a\u4e92\u64cd\u4f5c\uff0c\u4e14\u53ea\u6709\u5f88\u5c0f\u7684\u5dee\u522b\uff0c\u56e0\u6b64\u5f88\u591a\u4eba\u4e5f\u5e38\u628a 802.3\u5c40\u57df\u7f51\u7b80\u79f0\u4e3a\u201c\u4ee5\u592a\u7f51\u201d\u3002\u4e3a\u4e86\u4f7f\u6570\u636e\u94fe\u8def\u5c42\u80fd\u9002\u5e94\u4e0d\u540c\u6807\u51c6\u7684\u5c40\u57df\u7f51\uff0cIEEE802\u59d4\u5458\u4f1a\u5c06\u6570\u636e\u94fe\u8def\u5c42\u62c6\u5206\u6210\u4e86\u4e24\u4e2a\u5b50\u5c42\uff1a<\/p>\n<ul>\n<li>\u903b\u8f91\u94fe\u8def\u63a7\u5236 LLC (Logical Link Control) \u5b50\u5c42\uff1a\u4e0e\u4f20\u8f93\u5a92\u4f53\u65e0\u5173\u3002<\/li>\n<li>\u5a92\u4f53\u63a5\u5165\u63a7\u5236 MAC (Medium Access Control) \u5b50\u5c42\uff1a\u4e0e\u4f20\u8f93\u5a92\u4f53\u6709\u5173\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453839.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='4-\u9002\u914d\u5668\u7684\u4f5c\u7528'>4. \u9002\u914d\u5668\u7684\u4f5c\u7528<\/h4>\n<ul>\n<li>\u8fdb\u884c\u4e32\u884c\/\u5e76\u884c\u8f6c\u6362\u3002<\/li>\n<li>\u5bf9\u6570\u636e\u8fdb\u884c\u7f13\u5b58\u3002<\/li>\n<li>\u5728\u8ba1\u7b97\u673a\u7684\u64cd\u4f5c\u7cfb\u7edf\u5b89\u88c5\u8bbe\u5907\u9a71\u52a8\u7a0b\u5e8f\u3002<\/li>\n<li>\u5b9e\u73b0\u4ee5\u592a\u7f51\u534f\u8bae\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453037.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='563-\u968f\u673a\u63a5\u5165csmacd\u534f\u8bae'>5.6.2 \u968f\u673a\u63a5\u5165CSMA\/CD\u534f\u8bae<\/h3>\n<h4 id='1-\u524d\u5bfc\u77e5\u8bc6'>1. \u524d\u5bfc\u77e5\u8bc6<\/h4>\n<p>\u6700\u65e9\u7684\u4ee5\u592a\u7f51\uff1a\u5c06\u8bb8\u591a\u8ba1\u7b97\u673a\u90fd\u8fde\u63a5\u5230\u4e00\u6839\u603b\u7ebf\u4e0a\u3002\u4e3a\u4e86\u5b9e\u73b0\u4e00\u5bf9\u4e00\u901a\u4fe1\uff0c\u5c06\u63a5\u6536\u7ad9\u7684\u786c\u4ef6\u5730\u5740\u5199\u5165\u5e27\u9996\u90e8\u4e2d\u7684\u76ee\u7684\u5730\u5740\u5b57\u6bb5\u4e2d\u3002\u4ec5\u5f53\u6570\u636e\u5e27\u4e2d\u7684\u76ee\u7684\u5730\u5740\u4e0e\u9002\u914d\u5668\u786c\u4ef6\u5730\u5740\u4e00\u81f4\u65f6\uff0c\u624d\u80fd\u63a5\u6536\u8fd9\u4e2a\u6570\u636e\u5e27\u3002<\/p>\n<ul>\n<li>\u603b\u7ebf\u7279\u70b9\uff1a\u6613\u4e8e\u5b9e\u73b0\u5e7f\u64ad\u901a\u4fe1\uff0c\u7b80\u5355\uff0c\u53ef\u9760\u3002<\/li>\n<li>\u603b\u7ebf\u7f3a\u70b9\uff1a\u591a\u4e2a\u7ad9\u70b9\u540c\u65f6\u53d1\u9001\u65f6\uff0c\u4f1a\u4ea7\u751f\u53d1\u9001\u78b0\u649e\u6216\u51b2\u7a81\uff0c\u5bfc\u81f4\u53d1\u9001\u5931\u8d25\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u592a\u7f51\u91c7\u53d6\u7684 2 \u79cd\u91cd\u8981\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li>\u91c7\u7528\u8f83\u4e3a\u7075\u6d3b\u7684\u65e0\u8fde\u63a5\u7684\u5de5\u4f5c\u65b9\u5f0f\u3002\u4e0d\u5fc5\u5148\u5efa\u7acb\u8fde\u63a5\u5c31\u53ef\u4ee5\u76f4\u63a5\u53d1\u9001\u6570\u636e\u3002\u5bf9\u53d1\u9001\u7684\u6570\u636e\u5e27\u4e0d\u8fdb\u884c\u7f16\u53f7\uff0c\u4e5f\u4e0d\u8981\u6c42\u5bf9\u65b9\u53d1\u56de\u786e\u8ba4\u3002<\/li>\n<li>\u53d1\u9001\u7684\u6570\u636e\u90fd\u4f7f\u7528\u66fc\u5f7b\u65af\u7279 (Manchester) \u7f16\u7801\u3002\uff08\u7f3a\u70b9\uff1a\u6240\u5360\u7684\u9891\u5e26\u5bbd\u5ea6\u6bd4\u539f\u59cb\u7684\u57fa\u5e26\u4fe1\u53f7\u589e\u52a0\u4e86\u4e00\u500d\uff09<\/li>\n<\/ul>\n<h4 id='2-csmacd\u6982\u5ff5'>2. CSMA\/CD\u6982\u5ff5<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453605.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<ul>\n<li>\u5047\u8bbe\u5728\u4e00\u6761\u603b\u7ebf\u4e0a\uff0c\u6709\u591a\u53f0\u4e3b\u673a\uff0c\u4e3b\u673aC\u51c6\u5907\u53d1\u9001\u4fe1\u53f7\uff0c\u9996\u5148\u8fdb\u884c\u8f7d\u6ce2\u76d1\u542c\uff0c\u53d1\u73b0\u603b\u7ebf\u6ca1\u6709\u88ab\u5360\u7528\uff0c\u7acb\u523b\u53d1\u9001\u4fe1\u53f7\u3002<\/li>\n<li>\u4e3b\u673aC\u5728\u53d1\u9001\u4fe1\u53f7\u7684\u65f6\u5019\uff0c\u4e0d\u65ad\u8fdb\u884c\u78b0\u649e\u68c0\u6d4b\u3002<\/li>\n<li>\u6b64\u65f6\uff0c\u4e3b\u673aB\u4e5f\u8981\u53d1\u9001\u4fe1\u53f7\uff0c\u8fdb\u884c\u8f7d\u6ce2\u76d1\u542c\u53d1\u73b0\u603b\u7ebf\u5fd9\uff0c\u5219\u7b49\u5f85\u3002<\/li>\n<li>\u4e00\u65e6\u53d1\u73b0\u603b\u7ebf\u7a7a\u95f2\uff0cB\u7acb\u523b\u53d1\u9001\u5e27\uff0c\u5e76\u4e0d\u65ad\u8fdb\u884c\u78b0\u649e\u68c0\u6d4b\uff0c\u5982\u679c\u6ca1\u6709\u53d1\u751f\u78b0\u649e\u5219\u6301\u7eed\u53d1\u751f\u5e27<\/li>\n<li>\u6b64\u65f6\uff0cC\u4e3b\u673a\u4e5f\u8981\u53d1\u9001\u5e27\uff0c\u8fdb\u884c\u8f7d\u6ce2\u68c0\u6d4b\uff0c\u7531\u4e8eB\u53d1\u751f\u7684\u5e27\u8fd8\u6ca1\u4f20\u5230C\u9644\u8fd1\uff0c\u6240\u4ee5C\u8ba4\u4e3a\u603b\u7ebf\u7a7a\u95f2\uff0c\u5219\u53d1\u9001\u5e27<\/li>\n<li>\u4e24\u4e2a\u5e27\u53d1\u751f\u78b0\u649e\uff0c\u4ece\u78b0\u649e\u5904\u53d1\u51fa\u78b0\u649e\u4fe1\u53f7\uff0c\u7531\u4e8e\u78b0\u649e\u5904\u79bbC\u6bd4\u8f83\u8fd1\uff0c\u6240\u4ee5C\u5148\u505c\u6b62\uff0c\u7136\u540eB\u505c\u6b62\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453979.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='3-csmacd\u7684\u4e89\u7528\u671f'>3. CSMA\/CD\u7684\u4e89\u7528\u671f<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453319.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='4-csmacd\u7684\u6700\u5c0f\u5e27\u957f'>4. CSMA\/CD\u7684\u6700\u5c0f\u5e27\u957f<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453297.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='5-csmacd\u7684\u6700\u5927\u5e27\u957f'>5. CSMA\/CD\u7684\u6700\u5927\u5e27\u957f<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453699.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='6-csmacd\u7684\u622a\u65ad\u4e8c\u8fdb\u5236\u6307\u6570\u9000\u907f\u7b97\u6cd5'>6. CSMA\/CD\u7684\u622a\u65ad\u4e8c\u8fdb\u5236\u6307\u6570\u9000\u907f\u7b97\u6cd5<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453865.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='7-csmacd\u7684\u4fe1\u9053\u5229\u7528\u7387'>7. CSMA\/CD\u7684\u4fe1\u9053\u5229\u7528\u7387<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453358.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<ul>\n<li>a \u2192 0\uff0c\u8868\u793a\u4e00\u53d1\u751f\u78b0\u649e\u5c31\u7acb\u5373\u53ef\u4ee5\u68c0\u6d4b\u51fa\u6765\uff0c \u5e76\u7acb\u5373\u505c\u6b62\u53d1\u9001\uff0c\u56e0\u800c\u4fe1\u9053\u5229\u7528\u7387\u5f88\u9ad8\u3002<\/li>\n<li>a \u8d8a\u5927\uff0c\u8868\u660e\u4e89\u7528\u671f\u6240\u5360\u7684\u6bd4\u4f8b\u589e\u5927\uff0c\u6bcf\u53d1\u751f\u4e00\u6b21\u78b0\u649e\u5c31\u6d6a\u8d39\u8bb8\u591a\u4fe1\u9053\u8d44\u6e90\uff0c\u4f7f\u5f97\u4fe1\u9053\u5229\u7528\u7387\u660e\u663e\u964d\u4f4e\u3002<\/li>\n<\/ul>\n<h4 id='8-csmacd\u7684\u5e27\u53d1\u751f\u6d41\u7a0b'>8. CSMA\/CD\u7684\u5e27\u53d1\u751f\u6d41\u7a0b<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453189.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='9-csmacd\u7684\u5e27\u63a5\u53d7\u6d41\u7a0b'>9. CSMA\/CD\u7684\u5e27\u63a5\u53d7\u6d41\u7a0b<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453443.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='564-\u968f\u673a\u63a5\u5165csmaca\u534f\u8bae'>5.6.3 \u968f\u673a\u63a5\u5165CSMA\/CA\u534f\u8bae<\/h3>\n<h4 id='1-\u6982\u5ff5-1'>1. \u6982\u5ff5<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453284.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='2-80211\u65e0\u7ebf\u5c40\u57df\u7f51'>2. 802.11\u65e0\u7ebf\u5c40\u57df\u7f51<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453308.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='3-\u5e27\u95f4\u95f4\u9694'>3. \u5e27\u95f4\u95f4\u9694<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453185.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='4-\u5de5\u4f5c\u539f\u7406'>4. \u5de5\u4f5c\u539f\u7406<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453109.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<ul>\n<li>\u4e3a\u4ec0\u4e48\u6e90\u7ad9\u5728\u68c0\u6d4b\u5230\u4fe1\u9053\u7a7a\u95f2\u540e\u8fd8\u8981\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4DIFS\uff1f\u7b54\uff1a\u53ef\u80fd\u6709\u4f18\u5148\u7ea7\u66f4\u9ad8\u7684\u7ad9\u9700\u8981\u53d1\u9001\u5e27\uff0c\u90a3\u4e48\u5c31\u8ba9\u9ad8\u4f18\u5148\u7ea7\u7684\u5148\u53d1\u9001\u3002<\/li>\n<li>\u4e3a\u4ec0\u4e48\u76ee\u7684\u7ad9\u63a5\u53d7\u6570\u636e\u5e27\u540e\u8fd8\u8981\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4SIFS\u624d\u80fd\u53d1\u9001ACK\u5e27\uff1f\u7b54\uff1a\u7559\u51fa\u65f6\u95f4\u8ba9\u6e90\u7ad9\u5207\u6362\u5230\u63a5\u53d7\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n<h4 id='5-\u9000\u907f\u7b97\u6cd5'>5. \u9000\u907f\u7b97\u6cd5<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453433.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453252.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='6-\u4fe1\u9053\u9884\u7ea6\u548c\u865a\u62df\u8f7d\u6ce2\u76d1\u542c'>6. \u4fe1\u9053\u9884\u7ea6\u548c\u865a\u62df\u8f7d\u6ce2\u76d1\u542c<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453418.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453460.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453428.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453740.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5982\u4e0a\u56fe\uff0cA\u6536\u4e0d\u5230C\u7684\u4fe1\u53f7\uff0cC\u6536\u4e0d\u5230A\u7684\u4fe1\u53f7\uff0c\u4e24\u8005\u4e92\u4e3a\u9690\u853d\u7ad9\uff0cA\u5411B\u53d1\u9001RTS\u5e27\uff0c\u7531\u4e8e\u4fe1\u9053\u7a7a\u95f2\uff0c\u5219B\u53d1\u9001CTS\u5e27\u786e\u8ba4\uff0c\u4e8e\u662fA\u5411B\u53d1\u9001\u6570\u636e\u5e27\uff0cC\u867d\u7136\u6536\u4e0d\u5230A\u53d1\u51fa\u7684\u6570\u636e\u5e27\uff0c\u65e0\u6cd5\u76d1\u6d4b\u5230\u4fe1\u9053\u5fd9\uff0c\u4f46\u662f\u53ef\u4ee5\u6536\u5230B\u53d1\u9001\u7684CTS\u5e27\uff0c\u4e5f\u80fd\u83b7\u53d6\u901a\u4fe1\u7684\u6301\u7eed\u65f6\u95f4\u3002<\/p>\n<h2 id='57-mac\u5730\u5740ip\u5730\u5740arp\u5730\u5740'>5.7 MAC\u5730\u5740\u3001IP\u5730\u5740\u3001ARP\u5730\u5740<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453989.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='571-mac\u5730\u5740'>5.7.1 MAC\u5730\u5740<\/h3>\n<h4 id='1-\u6982\u5ff5-2'>1. \u6982\u5ff5<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453006.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453023.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453337.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453514.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453572.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='2-ieee-802-\u5c40\u57df\u7f51\u7684mac\u5730\u5740\u683c\u5f0f'>2. IEEE 802 \u5c40\u57df\u7f51\u7684MAC\u5730\u5740\u683c\u5f0f<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453914.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453209.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453325.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='3-mac\u5730\u5740\u7684\u53d1\u9001\u987a\u5e8f'>3. MAC\u5730\u5740\u7684\u53d1\u9001\u987a\u5e8f<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453309.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='4-mac\u5730\u5740\u4e3e\u4f8b'>4. MAC\u5730\u5740\u4e3e\u4f8b<\/h4>\n<p>\u5355\u64ad\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453476.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5e7f\u64ad\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453465.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u591a\u64ad\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453710.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453818.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h4 id='5-\u4ee5\u592a\u7f51-v2-\u7684-mac-\u5e27\u683c\u5f0f'>5. \u4ee5\u592a\u7f51 V2 \u7684 MAC \u5e27\u683c\u5f0f<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453732.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<ul>\n<li>\u7c7b\u578b\u5b57\u6bb5\u7528\u6765\u6807\u5fd7\u4e0a\u4e00\u5c42\u4f7f\u7528\u7684\u662f\u4ec0\u4e48\u534f\u8bae\uff0c\u4ee5\u4fbf\u628a\u6536\u5230\u7684 MAC \u5e27\u7684\u6570\u636e\u4e0a\u4ea4\u7ed9\u4e0a\u4e00\u5c42\u7684\u8fd9\u4e2a\u534f\u8bae\u3002<\/li>\n<li>\u6570\u636e\u5b57\u6bb5\u7684\u6b63\u5f0f\u540d\u79f0\u662f MAC \u5ba2\u6237\u6570\u636e\u5b57\u6bb5\u3002\u6700\u5c0f\u957f\u5ea6 64 \u5b57\u8282 \u2013 18 \u5b57\u8282\u7684\u9996\u90e8\u548c\u5c3e\u90e8 = \u6570\u636e\u5b57\u6bb5\u7684\u6700\u5c0f\u957f\u5ea6\uff0846\u5b57\u8282\uff09<\/li>\n<li>\u5f53\u6570\u636e\u5b57\u6bb5\u7684\u957f\u5ea6\u5c0f\u4e8e 46 \u5b57\u8282\u65f6\uff0c\u5e94\u5728\u6570\u636e\u5b57\u6bb5\u7684\u540e\u9762\u52a0\u5165\u6574\u6570\u5b57\u8282\u7684\u586b\u5145\u5b57\u6bb5\uff0c\u4ee5\u4fdd\u8bc1\u4ee5\u592a\u7f51\u7684 MAC \u5e27\u957f\u4e0d\u5c0f\u4e8e 64 \u5b57\u8282\u3002<\/li>\n<\/ul>\n<h4 id='6-\u65e0\u6548mac\u5e27'>6. \u65e0\u6548MAC\u5e27<\/h4>\n<ul>\n<li>\u6570\u636e\u5b57\u6bb5\u7684\u957f\u5ea6\u4e0e\u957f\u5ea6\u5b57\u6bb5\u7684\u503c\u4e0d\u4e00\u81f4\uff1b<\/li>\n<li>\u5e27\u7684\u957f\u5ea6\u4e0d\u662f\u6574\u6570\u4e2a\u5b57\u8282\uff1b<\/li>\n<li>\u7528\u6536\u5230\u7684\u5e27\u68c0\u9a8c\u5e8f\u5217 FCS \u67e5\u51fa\u6709\u5dee\u9519\uff1b<\/li>\n<li>\u6570\u636e\u5b57\u6bb5\u7684\u957f\u5ea6\u4e0d\u5728 46 ~ 1500 \u5b57\u8282\u4e4b\u95f4\u3002<\/li>\n<li>\u6709\u6548\u7684 MAC \u5e27\u957f\u5ea6\u4e3a 64 ~ 1518 \u5b57\u8282\u4e4b\u95f4\u3002<\/li>\n<\/ul>\n<p>\u5bf9\u4e8e\u68c0\u67e5\u51fa\u7684\u65e0\u6548 MAC \u5e27\u5c31\u7b80\u5355\u5730\u4e22\u5f03\u3002\u4ee5\u592a\u7f51\u4e0d\u8d1f\u8d23\u91cd\u4f20\u4e22\u5f03\u7684\u5e27\u3002<\/p>\n<h3 id='572-ip\u5730\u5740'>5.7.2 IP\u5730\u5740<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453240.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453478.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453802.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453860.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='573-arp\u5730\u5740'>5.7.3 ARP\u5730\u5740<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453623.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u5982\u4e0a\u56fe\u6240\u793a\uff0cB\u8981\u7ed9C\u53d1\u9001\u6570\u636e\u62a5\uff0cB\u77e5\u9053C\u7684IP\u5730\u5740\u4f46\u662f\u4e0d\u77e5\u9053C\u7684MAC\u5730\u5740\uff0c\u9700\u8981\u5728\u4e3b\u673aB \u7684ARP\u9ad8\u901f\u7f13\u5b58\u4e2d\u67e5\u627e\uff0cARP\u9ad8\u901f\u7f13\u5b58\u8868\u5982\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453675.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u6ca1\u6709\u627e\u5230\u4e3b\u673aC\u7684IP\u5730\u5740\u5bf9\u5e94\u7684MAC\u5730\u5740\uff0c\u5219\u53d1\u51faARP\u8bf7\u6c42\u62a5\u6587\uff0c\u5f62\u5f0f\u4e3a\u5e7f\u64ad\u5e27\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453210.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>ARP\u54cd\u5e94\u62a5\u6587\u63a5\u53d7\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453853.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>ARP\u534f\u8bae\u53ea\u80fd\u9010\u6bb5\u94fe\u8def\u8fdb\u884c\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453691.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h2 id='58-\u62d3\u5c55\u7684\u4ee5\u592a\u7f51'>5.8 \u62d3\u5c55\u7684\u4ee5\u592a\u7f51<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453128.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453679.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='381-\u5728\u7269\u7406\u5c42\u62d3\u5c55\u4ee5\u592a\u7f51'>3.8.1 \u5728\u7269\u7406\u5c42\u62d3\u5c55\u4ee5\u592a\u7f51<\/h3>\n<p>\u7531\u4e8e\u96c6\u7ebf\u5668\u53ef\u4ee5\u770b\u6210\u4e00\u4e2a\u603b\u7ebf\uff0c\u6839\u636e\u603b\u7ebf\u7684\u7279\u6027\uff0c\u603b\u7ebf\u4e0a\u7684\u4e00\u4e2a\u4e3b\u673a\u8981\u7ed9\u53e6\u5916\u4e00\u4e2a\u4e3b\u673a\u53d1\u9001\u6570\u636e\u5e27\uff0c\u5219\u5176\u4ed6\u4e3b\u673a\u4e5f\u90fd\u80fd\u63a5\u53d7\u5230\u8fd9\u4e2a\u6570\u636e\u5e27\uff0c\u5373\u5f62\u6210\u4e00\u4e2a\u7f51\u7edc\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453458.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453737.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u4f18\u70b9\uff1a<\/p>\n<ul>\n<li>\u4f7f\u539f\u6765\u5c5e\u4e8e\u4e0d\u540c\u78b0\u649e\u57df\uff08\u51b2\u7a81\u57df\uff09\u7684\u8ba1\u7b97\u673a\u80fd\u591f\u8de8\u78b0\u649e\u57df\u901a\u4fe1\u3002<\/li>\n<li>\u6269\u5927\u4e86\u4ee5\u592a\u7f51\u8986\u76d6\u7684\u5730\u7406\u8303\u56f4\u3002<\/li>\n<\/ul>\n<p>\u7f3a\u70b9\uff1a<\/p>\n<ul>\n<li>\u78b0\u649e\u57df\u589e\u5927\u4e86\uff0c\u603b\u7684\u541e\u5410\u91cf\u672a\u63d0\u9ad8\u3002<\/li>\n<li>\u5982\u679c\u4f7f\u7528\u4e0d\u540c\u7684\u4ee5\u592a\u7f51\u6280\u672f\uff08\u5982\u6570\u636e\u7387\u4e0d\u540c\uff09\uff0c\u90a3\u4e48\u5c31\u4e0d\u80fd\u7528\u96c6\u7ebf\u5668\u5c06\u5b83\u4eec\u4e92\u8fde\u8d77\u6765\u3002<\/li>\n<\/ul>\n<p>\u78b0\u649e\u57df\u53c8\u79f0\u4e3a\u51b2\u7a81\u57df\uff0c\u6307\u7f51\u7edc\u4e2d\u4e00\u4e2a\u7ad9\u70b9\u53d1\u51fa\u7684\u5e27\u4f1a\u4e0e\u5176\u4ed6\u7ad9\u70b9\u53d1\u51fa\u7684\u5e27\u4ea7\u751f\u78b0\u649e\u6216\u51b2\u7a81\u7684\u90a3\u90e8\u5206\u7f51\u7edc\u3002\u78b0\u649e\u57df\u8d8a\u5927\uff0c\u53d1\u751f\u78b0\u649e\u7684\u6982\u7387\u8d8a\u9ad8\u3002<\/p>\n<h3 id='582-\u5728\u6570\u636e\u94fe\u8def\u5c42\u62d3\u5c55\u4ee5\u592a\u7f51'>5.8.2 \u5728\u6570\u636e\u94fe\u8def\u5c42\u62d3\u5c55\u4ee5\u592a\u7f51<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453822.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u4f7f\u7528\u96c6\u7ebf\u5668\u7684\u7f51\u7edc\u4e0a\uff0c\u4e00\u4e2a\u4e3b\u673a\u8981\u7ed9\u53e6\u5916\u4e00\u4e2a\u4e3b\u673a\u53d1\u9001\u4fe1\u606f\uff0c\u5219\u5176\u4ed6\u6240\u6709\u4e3b\u673a\u4e5f\u90fd\u4f1a\u6536\u5230\u4fe1\u606f\uff0c\u800c\u4f7f\u7528\u4ea4\u6362\u673a\u7684\u7f51\u7edc\uff0c\u5176\u4ed6\u4e3b\u673a\u4e0d\u4f1a\u63a5\u6536\u5230\u8fd9\u4e9b\u4fe1\u606f\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453103.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p>\u4f8b\u5982\u4e3b\u673aA\u8981\u7ed9\u4e3b\u673aB\u53d1\u9001\u6570\u636e\uff0c\u5219\u5728\u5e27\u4ea4\u6362\u8868\u4e2d\u67e5\u627e\u53d1\u73b0\u4e3b\u673aB\u4e0e\u63a5\u53e32\u8fde\u63a5\uff0c\u5219\u628a\u6570\u636e\u53d1\u9001\u5230\u63a5\u53e32\u3002\u5728\u6b64\u8fc7\u7a0b\u4e2d\u5176\u4ed6\u63a5\u53e3\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001\uff0c\u4e5f\u53ef\u4ee5\u8fdb\u884c\u6570\u636e\u7684\u8f6c\u53d1\uff0c\u6240\u4ee5\u5177\u6709\u5e76\u884c\u6027\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453821.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453164.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453227.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453323.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453824.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='583-\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u81ea\u5b66\u4e60\u548c\u8f6c\u53d1\u5e27'>5.8.3 \u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u81ea\u5b66\u4e60\u548c\u8f6c\u53d1\u5e27<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453715.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<h3 id='\u6d41\u7a0b'>\u6d41\u7a0b<\/h3>\n<ul>\n<li>\u5982\u4e0b\u56fe\uff0c\u6709\u4e24\u4e2a\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\uff0c\u6bcf\u4e2a\u4ea4\u6362\u673a\u4e0a\u67093\u53f0\u4e3b\u673a\uff0c\u5047\u8bbe\u5404\u4e3b\u673a\u5df2\u7ecf\u77e5\u9053\u7f51\u7edc\u4e2d\u5176\u4ed6\u5404\u4e3b\u673a\u7684MAC\u5730\u5740\uff08\u5373\u65e0\u9700\u518d\u8fdb\u884cARP\uff09\u3002<\/li>\n<li>\u5047\u8bbeA\u8981\u7ed9B\u53d1\u9001\u5e27\uff0c\u8be5\u5e27\u4ece\u4e3b\u673aA\u7684\u63a5\u53e31\u8fdb\u5165\u4ea4\u6362\u673a1\uff0c\u4ea4\u6362\u673a1\u9996\u5148\u8fdb\u884c\u767b\u8bb0\uff0c\u5c06\u8be5\u5e27\u7684\u6e90MAC\u5730\u5740A\u548c\u5bf9\u5e94\u7684\u63a5\u53e3\u53f7\u8bb0\u5f55\u5230\u5e27\u4ea4\u6362\u8868\u4e2d\uff0c\u8be5\u767b\u8bb0\u5de5\u4f5c\u79f0\u4e3a\u4ea4\u6362\u673a\u7684\u81ea\u5b66\u4e60\u3002<\/li>\n<li>\u8be5\u5e27\u7684\u76ee\u7684MAC\u5730\u5740\u4e3aB\uff0c\u5728\u5e27\u4ea4\u6362\u8868\u4e2d\u6ca1\u627e\u5230\uff0c\u5219\u5bf9\u8be5\u5e27\u8fdb\u884c\u76f2\u76ee\u8f6c\u53d1\uff08\u4e5f\u79f0\u4e3a\u6cdb\u6d2a\uff09\uff0c\u5373\u5c06\u8be5\u5e27\u8f6c\u53d1\u7ed9\u9664\u4e86\u8be5\u5e27\u8fdb\u5165\u63a5\u53e3\u4ee5\u5916\u7684\u6240\u6709\u63a5\u53e3\u3002<\/li>\n<li>\u4e3b\u673aB\u7684\u7f51\u5361\u6536\u5230\u8be5\u5e27\u540e\u786e\u8ba4\u76ee\u7684\u5730\u5740\u662f\u81ea\u5df1\uff0c\u6240\u6709\u63a5\u53d7\u8be5\u5e27\uff0c\u4e3b\u673aC\u820d\u5f03\u8be5\u5e27\u3002<\/li>\n<li>\u8be5\u5e27\u4ece\u4ea4\u6362\u673a2\u7684\u63a5\u53e32\u8fdb\u5165\u4ea4\u6362\u673a2\uff0c\u4ea4\u6362\u673a2\u9996\u5148\u8fdb\u884c\u767b\u8bb0\u5de5\u4f5c\uff0c\u5c06\u8be5\u5e27\u7684\u6e90MAC\u5730\u5740A\u548c\u8fdb\u5165\u7684\u63a5\u53e3\u597d2\u8bb0\u5f55\u5230\u5e27\u4ea4\u6362\u8868\u4e2d\u3002<\/li>\n<li>\u8be5\u5e27\u7684\u76ee\u7684MAC\u5730\u5740\u4e3aB\uff0c\u5728\u5e27\u4ea4\u6362\u8868\u4e2d\u6ca1\u627e\u5230\uff0c\u5219\u5bf9\u8be5\u5e27\u8fdb\u884c\u76f2\u76ee\u8f6c\u53d1\uff0c\u4e3b\u673aDEF\u90fd\u6536\u5230\u5e76\u820d\u5f03\u8be5\u5e27\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453891.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/p>\n<ul>\n<li>\u4e0b\u9762\u4e3b\u673aB\u7ed9\u4e3b\u673aA\u53d1\u9001\u5e27\uff0c\u8be5\u5e27\u4ece\u63a5\u53e33\u8fdb\u5165\u4ea4\u6362\u673a1\uff0c\u4ea4\u6362\u673a1\u8bb0\u5f55MAC\u5730\u5740B\u548c\u5bf9\u5e94\u7684\u63a5\u53e33\u3002<\/li>\n<li>\u5728\u5e27\u4ea4\u6362\u8868\u4e2d\u67e5\u627e\u76ee\u7684MAC\u5730\u5740A\uff0c\u53d1\u73b0\u5bf9\u5e94\u7684\u63a5\u53e3\u4e3a1\uff0c\u4e8e\u662f\u4ece\u63a5\u53e31\u8f6c\u53d1\u8be5\u5e27\u3002<\/li>\n<li>\u4e3b\u673a1\u7684\u7f51\u5361\u63a5\u6536\u5230\u8be5\u5e27\uff0c\u5176\u4ed6\u4e3b\u673a\u4e0d\u4f1a\u6536\u5230\u8be5\u5e27\u3002<img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453946.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/li>\n<li>\u4e0b\u9762\u4e3b\u673aE\u7ed9\u4e3b\u673aA\u53d1\u9001\u5e27\uff0c\u9996\u5148\u8be5\u5e27\u4ece\u63a5\u53e33\u8fdb\u5165\u4ea4\u6362\u673a2\uff0c\u4ea4\u6362\u673a2\u767b\u8bb0MAC\u5730\u5740E\u548c\u63a5\u53e33\u3002<\/li>\n<li>\u5728\u4ea4\u6362\u8868\u4e2d\u67e5\u627eMAC\u5730\u5740A\u5bf9\u5e94\u7684\u63a5\u53e3\u4e3a2\uff0c\u5219\u5e27\u8f6c\u53d1\u5230\u63a5\u53e32\uff0c\u4ece\u4ea4\u6362\u673a1\u7684\u63a5\u53e34\u8fdb\u5165\u4ea4\u6362\u673a1\u3002<\/li>\n<li>\u4ea4\u6362\u673a1\u5148\u8fdb\u884c\u767b\u8bb0\u5de5\u4f5c\uff0c\u8bb0\u5f55E\u7684\u63a5\u53e3\u4e3a4\uff0c\u7136\u540e\u67e5\u627eA\u7684\u63a5\u53e3\u4e3a1\u3002<\/li>\n<li>\u4ea4\u6362\u673a1\u8f6c\u53d1\u8be5\u5e27\u5230\u63a5\u53e31\uff0c\u4e3b\u673aA\u63a5\u53d7\u8be5\u5e27\u3002<img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453050.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/li>\n<li>\u5047\u8bbe\u4ea4\u6362\u673a1\u7684\u63a5\u53e31\u53c8\u8fde\u63a5\u4e86\u4e00\u53f0\u4e3b\u673aG\uff0c\u4e3b\u673aG\u7ed9A\u53d1\u9001\u5e27\u3002<\/li>\n<li>\u8be5\u5e27\u901a\u8fc7\u603b\u7ebf\u8fdb\u884c\u4f20\u8f93\uff0c\u4e3b\u673aA\u548c\u4ea4\u6362\u673a1\u7684\u63a5\u53e31\u90fd\u80fd\u6536\u5230\u8be5\u5e27\uff0c\u4e3b\u673aA\u7684\u7f51\u5361\u6536\u5230\u8be5\u5e27\u540e\u63a5\u53d7\u8be5\u5e27\uff0c\u4ea4\u6362\u673a1\u6536\u5230\u8be5\u5e27\u5148\u8fdb\u884c\u767b\u8bb0\u64cd\u4f5c\uff0c\u518d\u8fdb\u884c\u8f6c\u53d1\u3002<\/li>\n<li>\u4ea4\u6362\u673a1\u5728\u5e27\u4ea4\u6362\u8868\u4e2d\u67e5\u627e\u53d1\u73b0MAC\u5730\u5740A\u7684\u63a5\u53e3\u4e3a1\uff0c\u4f46\u662f\u8be5\u5e27\u5c31\u662f\u4ece\u63a5\u53e31\u8fdb\u5165\u4ea4\u6362\u673a1\uff0c\u6240\u4ee5\u4ea4\u6362\u673a1\u4e0d\u518d\u4ece\u8be5\u63a5\u53e3\u8f6c\u53d1\u51fa\u53bb\uff0c\u6240\u4ee5\u4e22\u5f03\u8be5\u5e27\u3002<img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453148.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/li>\n<li>\u968f\u7740\u7f51\u7edc\u4e2d\u5404\u4e3b\u673a\u90fd\u53d1\u9001\u4e86\u5e27\uff0c\u5219\u4ea4\u6362\u673a\u5b66\u4e60\u5230\u4e86\u6240\u6709\u4e3b\u673a\u5bf9\u5e94\u7684MAC\u5730\u5740\u548c\u5bf9\u5e94\u7684\u63a5\u53e3\uff0c\u4f46\u662f\u6bcf\u6761\u8bb0\u5f55\u90fd\u5b58\u5728\u6709\u6548\u65f6\u95f4\uff0c\u56e0\u4e3aMAC\u5730\u5740\u548c\u4ea4\u6362\u673a\u63a5\u53e3\u4e0d\u662f\u6c38\u4e45\u5bf9\u5e94\u7684\uff0c\u6bd4\u5982\u66f4\u6362\u7f51\u53e3\u6216\u8005\u8fde\u63a5\u4e86\u5176\u4ed6\u7684\u4e3b\u673a\uff0c\u8fd9\u4e9b\u90fd\u4f1a\u5bfc\u81f4\u4ea4\u6362\u673a\u63a5\u53e3\u548cMAC\u5730\u5740\u6539\u53d8\u3002<img decoding=\"async\" src=\"https:\/\/picture.chentaiyang.space\/202309041453200.png\" referrerpolicy=\"no-referrer\" alt=\"img\"><\/li>\n<\/ul>\n<h3 id='584-\u4ee5\u592a\u7f51\u4ea4\u6362\u673a\u7684\u751f\u6210\u6811\u534f\u8baestp'>5.8.4 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alt=\"img\"><\/p>\n<p>\u4f46\u662f\u5197\u4f59\u94fe\u8def\u4e5f\u4f1a\u9020\u6210\u5f88\u591a\u8d1f\u9762\u5f71\u54cd\uff0c\u6bd4\u5982\uff1a<\/p>\n<ul>\n<li>\u9020\u6210\u5e7f\u64ad\u98ce\u66b4\uff1a<\/li>\n<\/ul>\n<ul>\n<ul>\n<li>\u4e3b\u673aH1\u53d1\u9001\u5e7f\u64ad\u5e27\uff0c\u4ea4\u6362\u673aB\u63a5\u53d7\u5230\u5e27\u540e\u4ece\u5176\u4ed6\u7684\u63a5\u53e3\u53d1\u9001\u8be5\u5e27\uff0c\u8be5\u5e27\u5230\u8fbe\u4ea4\u6362\u673aA\u548cC\u3002<\/li>\n<li>\u4ea4\u6362\u673aA\u6536\u5230B\u53d1\u9001\u6765\u7684\u5e7f\u64ad\u5e27\u540e\u4ece\u5176\u4ed6\u63a5\u53e3\u8f6c\u53d1\u8be5\u5e27\uff0c\u540c\u65f6\u4ea4\u6362\u673aC\u6536\u5230\u8be5\u5e27\u540e\u4e5f\u4ece\u5176\u4ed6\u63a5\u53e3\u8f6c\u53d1\u8be5\u5e27\u3002<\/li>\n<li>\u4ea4\u6362\u673aC\u53c8\u6536\u5230\u4e86\u6765\u81ea\u4ea4\u6362\u673aA\u7684\u5e7f\u64ad\u5e27\uff0c\u4ece\u5176\u4ed6\u63a5\u53e3\u8f6c\u53d1\u8be5\u5e27\uff0c\u4ea4\u6362\u673aA\u6536\u5230\u6765\u81ea\u4ea4\u6362\u673aC\u7684\u5e7f\u64ad\u5e27\uff0c\u540c\u6837\u8fdb\u884c\u8f6c\u53d1\u3002<\/li>\n<li>\u5982\u6b64\u8fdb\u884c\uff0c\u5c31\u4f1a\u51fa\u73b0\u65e0\u7a77\u65e0\u5c3d\u7684\u8f6c\u53d1\uff0c\u5927\u91cf\u6d88\u8017\u7f51\u7edc\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<\/ul>\n<ul>\n<li>\u4e3b\u673a\u6536\u5230\u91cd\u590d\u5206\u5e7f\u64ad\u5e27\uff0c\u5927\u91cf\u6d88\u8017\u4e3b\u673a\u8d44\u6e90\u3002<\/li>\n<li>\u4ea4\u6362\u673a\u7684\u5e27\u4ea4\u6362\u8868\u9707\u8361\uff08\u6f02\u79fb\uff09\uff0c\u7531\u4e8e\u5e7f\u64ad\u98ce\u66b4\uff0c\u4e00\u4e2a\u4ea4\u6362\u5e27\u4f1a\u591a\u6b21\u8fdb\u5165\u540c\u4e2a\u4ea4\u6362\u673a\uff0c\u4ea4\u6362\u673a\u8fdb\u884c\u591a\u6b21\u8bb0\u5f55\u64cd\u4f5c\uff0c\u53d1\u751f\u9519\u8bef\u3002<\/li>\n<\/ul>\n<h4 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