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\u4e03\u5c42\u6a21\u578b\u6700\u91cd\u8981\u7684\u4e0d\u662f\u201c\u4e03\u5c42\u540d\u5b57\u201d\uff0c\u800c\u662f\u5b83\u4f53\u73b0\u51fa\u6765\u7684\u5206\u5c42\u601d\u60f3\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u5206\u5c42\u660e\u786e<\/h3>\n\n\n\n<p>\u7f51\u7edc\u901a\u4fe1\u662f\u4e00\u4e2a\u5f88\u590d\u6742\u7684\u8fc7\u7a0b\uff0cOSI \u6a21\u578b\u628a\u5b83\u62c6\u6210\u4e86 7 \u5c42\u3002<br>\u6bcf\u5c42\u53ea\u8d1f\u8d23\u4e00\u90e8\u5206\u529f\u80fd\uff0c\u8fd9\u6837\u66f4\u5bb9\u6613\u7406\u89e3\u3001\u8bbe\u8ba1\u548c\u7ef4\u62a4\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u5c42\u95f4\u72ec\u7acb<\/h3>\n\n\n\n<p>\u6bcf\u4e00\u5c42\u5b8c\u6210\u81ea\u5df1\u7684\u4efb\u52a1\uff0c\u53ea\u901a\u8fc7\u63a5\u53e3\u4e0e\u4e0a\u4e0b\u5c42\u4ea4\u4e92\u3002<br>\u67d0\u4e00\u5c42\u5185\u90e8\u5b9e\u73b0\u6539\u53d8\uff0c\u4e00\u822c\u4e0d\u5f71\u54cd\u5176\u4ed6\u5c42\u7684\u529f\u80fd\u5b9a\u4e49\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u529f\u80fd\u9010\u5c42\u9012\u8fdb<\/h3>\n\n\n\n<p>\u8d8a\u5f80\u4e0b\u8d8a\u63a5\u8fd1\u786c\u4ef6\u548c\u4f20\u8f93\u4ecb\u8d28\uff1b<br>\u8d8a\u5f80\u4e0a\u8d8a\u63a5\u8fd1\u5e94\u7528\u548c\u7528\u6237\u9700\u6c42\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u6807\u51c6\u5316\u601d\u60f3\u5f3a<\/h3>\n\n\n\n<p>OSI \u6a21\u578b\u672c\u8d28\u4e0a\u662f\u53c2\u8003\u6a21\u578b\u3002<br>\u867d\u7136\u73b0\u5b9e\u534f\u8bae\u4e0d\u5b8c\u5168\u6309 OSI \u4e03\u5c42\u4e25\u683c\u5b9e\u73b0\uff0c\u4f46\u5b83\u7279\u522b\u9002\u5408\u6559\u5b66\u548c\u8003\u8bd5\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u5404\u5c42\u6570\u636e\u5355\u4f4d\u4e0d\u540c<\/h3>\n\n\n\n<p>\u8fd9\u4e5f\u662f\u8003\u8bd5\u4e2d\u7ecf\u5e38\u8003\u7684\u5185\u5bb9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7269\u7406\u5c42\uff1a\u6bd4\u7279 bit<\/li>\n\n\n\n<li>\u6570\u636e\u94fe\u8def\u5c42\uff1a\u5e27 frame<\/li>\n\n\n\n<li>\u7f51\u7edc\u5c42\uff1a\u5206\u7ec4 \/ \u6570\u636e\u62a5 packet<\/li>\n\n\n\n<li>\u4f20\u8f93\u5c42\uff1a\u62a5\u6587\u6bb5 segment<\/li>\n\n\n\n<li>\u4e0a\u4e09\u5c42\uff1a\u901a\u5e38\u7edf\u79f0\u4e3a\u62a5\u6587 \/ \u6570\u636e<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001OSI \u4e03\u5c42\u6a21\u578b\u5404\u5c42\u529f\u80fd\u603b\u89c8<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5c42\u6b21<\/th><th>\u4e3b\u8981\u529f\u80fd<\/th><th>\u5173\u952e\u8bcd<\/th><\/tr><\/thead><tbody><tr><td>\u5e94\u7528\u5c42<\/td><td>\u4e3a\u7528\u6237\u63d0\u4f9b\u5177\u4f53\u7f51\u7edc\u670d\u52a1<\/td><td>HTTP\u3001FTP\u3001SMTP\u3001DNS<\/td><\/tr><tr><td>\u8868\u793a\u5c42<\/td><td>\u6570\u636e\u683c\u5f0f\u8f6c\u6362\u3001\u52a0\u5bc6\u3001\u538b\u7f29<\/td><td>\u7f16\u7801\u3001\u52a0\u5bc6\u3001\u538b\u7f29<\/td><\/tr><tr><td>\u4f1a\u8bdd\u5c42<\/td><td>\u5efa\u7acb\u3001\u7ba1\u7406\u3001\u7ec8\u6b62\u4f1a\u8bdd<\/td><td>\u4f1a\u8bdd\u63a7\u5236\u3001\u540c\u6b65<\/td><\/tr><tr><td>\u4f20\u8f93\u5c42<\/td><td>\u63d0\u4f9b\u7aef\u5230\u7aef\u901a\u4fe1\u670d\u52a1<\/td><td>TCP\u3001UDP\u3001\u7aef\u53e3\u3001\u53ef\u9760\u4f20\u8f93<\/td><\/tr><tr><td>\u7f51\u7edc\u5c42<\/td><td>\u8def\u7531\u9009\u62e9\u4e0e\u5206\u7ec4\u8f6c\u53d1<\/td><td>IP\u3001\u8def\u7531\u3001\u5206\u7ec4<\/td><\/tr><tr><td>\u6570\u636e\u94fe\u8def\u5c42<\/td><td>\u6210\u5e27\u3001\u5dee\u9519\u68c0\u6d4b\u3001\u94fe\u8def\u63a7\u5236<\/td><td>\u5e27\u3001MAC\u3001CRC<\/td><\/tr><tr><td>\u7269\u7406\u5c42<\/td><td>\u4f20\u8f93\u6bd4\u7279\u6d41\u548c\u7269\u7406\u4fe1\u53f7<\/td><td>\u7535\u538b\u3001\u63a5\u53e3\u3001\u4ecb\u8d28\u3001\u6bd4\u7279<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001\u4e03\u5c42\u5206\u522b\u600e\u4e48\u7406\u89e3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u7269\u7406\u5c42\uff1a\u8d1f\u8d23\u201c\u628a\u6bd4\u7279\u53d1\u51fa\u53bb\u201d<\/h3>\n\n\n\n<p>\u7269\u7406\u5c42\u4e0d\u5173\u5fc3\u6570\u636e\u5185\u5bb9\u672c\u8eab\uff0c\u53ea\u5173\u5fc3\u5982\u4f55\u628a 0 \u548c 1 \u901a\u8fc7\u4f20\u8f93\u4ecb\u8d28\u53d1\u9001\u51fa\u53bb\u3002<br>\u5b83\u7814\u7a76\u7684\u662f\u4fe1\u53f7\u3001\u7535\u538b\u3001\u901f\u7387\u3001\u63a5\u53e3\u3001\u4ecb\u8d28\u7b49\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\uff1a<br><strong>\u7269\u7406\u5c42\u89e3\u51b3\u7684\u662f\u201c\u600e\u4e48\u53d1\u4fe1\u53f7\u201d\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u6570\u636e\u94fe\u8def\u5c42\uff1a\u8d1f\u8d23\u201c\u5728\u4e00\u6bb5\u94fe\u8def\u4e0a\u628a\u5e27\u4f20\u597d\u201d<\/h3>\n\n\n\n<p>\u8fd9\u4e00\u5c42\u628a\u7269\u7406\u5c42\u4f20\u6765\u7684\u6bd4\u7279\u6d41\u7ec4\u7ec7\u6210\u201c\u5e27\u201d\uff0c\u89e3\u51b3\u7684\u662f\u76f8\u90bb\u8282\u70b9\u4e4b\u95f4\u7684\u4f20\u8f93\u95ee\u9898\u3002<br>\u5e38\u89c1\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6210\u5e27<\/li>\n\n\n\n<li>\u5dee\u9519\u68c0\u6d4b<\/li>\n\n\n\n<li>\u4ecb\u8d28\u8bbf\u95ee\u63a7\u5236<\/li>\n\n\n\n<li>\u76f8\u90bb\u8282\u70b9\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u8f93\u63a7\u5236<\/li>\n<\/ul>\n\n\n\n<p>\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\uff1a<br><strong>\u6570\u636e\u94fe\u8def\u5c42\u89e3\u51b3\u7684\u662f\u201c\u8fd9\u4e00\u6bb5\u8def\u600e\u4e48\u8d70\u201d\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u7f51\u7edc\u5c42\uff1a\u8d1f\u8d23\u201c\u627e\u8def\u201d<\/h3>\n\n\n\n<p>\u7f51\u7edc\u5c42\u7684\u6838\u5fc3\u4efb\u52a1\u662f\u628a\u5206\u7ec4\u4ece\u6e90\u4e3b\u673a\u9001\u5230\u76ee\u7684\u4e3b\u673a\u3002<br>\u5b83\u5173\u6ce8\u7684\u662f\u8de8\u7f51\u7edc\u4f20\u8f93\uff0c\u4e5f\u5c31\u662f\u8def\u5f84\u9009\u62e9\u548c\u8f6c\u53d1\u3002<\/p>\n\n\n\n<p>\u5178\u578b\u5173\u952e\u8bcd\u6709\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IP \u5730\u5740<\/li>\n\n\n\n<li>\u8def\u7531<\/li>\n\n\n\n<li>\u5206\u7ec4\u8f6c\u53d1<\/li>\n\n\n\n<li>\u8def\u7531\u5668<\/li>\n<\/ul>\n\n\n\n<p>\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\uff1a<br><strong>\u7f51\u7edc\u5c42\u89e3\u51b3\u7684\u662f\u201c\u6574\u6761\u8def\u600e\u4e48\u9009\u201d\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. \u4f20\u8f93\u5c42\uff1a\u8d1f\u8d23\u201c\u7aef\u5230\u7aef\u4f20\u8f93\u201d<\/h3>\n\n\n\n<p>\u4f20\u8f93\u5c42\u9762\u5bf9\u7684\u662f\u201c\u8fdb\u7a0b\u5230\u8fdb\u7a0b\u201d\u7684\u901a\u4fe1\u3002<br>\u5b83\u8981\u4fdd\u8bc1\u6570\u636e\u4ece\u53d1\u9001\u65b9\u5e94\u7528\u51c6\u786e\u4f20\u5230\u63a5\u6536\u65b9\u5e94\u7528\u3002<\/p>\n\n\n\n<p>\u5e38\u89c1\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7aef\u5230\u7aef\u901a\u4fe1<\/li>\n\n\n\n<li>\u53ef\u9760\u4f20\u8f93<\/li>\n\n\n\n<li>\u6d41\u91cf\u63a7\u5236<\/li>\n\n\n\n<li>\u590d\u7528\u4e0e\u5206\u7528<\/li>\n<\/ul>\n\n\n\n<p>\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\uff1a<br><strong>\u4f20\u8f93\u5c42\u89e3\u51b3\u7684\u662f\u201c\u9001\u5230\u54ea\u4e00\u4e2a\u8fdb\u7a0b\uff0c\u5e76\u5c3d\u91cf\u53ef\u9760\u9001\u8fbe\u201d\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">5. \u4f1a\u8bdd\u5c42\uff1a\u8d1f\u8d23\u201c\u7ba1\u7406\u901a\u4fe1\u8fc7\u7a0b\u201d<\/h3>\n\n\n\n<p>\u4f1a\u8bdd\u5c42\u8d1f\u8d23\u5efa\u7acb\u3001\u7ef4\u6301\u548c\u7ec8\u6b62\u4f1a\u8bdd\u3002<br>\u5b83\u66f4\u5173\u6ce8\u201c\u901a\u4fe1\u8fc7\u7a0b\u672c\u8eab\u662f\u5426\u6709\u7ec4\u7ec7\u201d\u3002<\/p>\n\n\n\n<p>\u5178\u578b\u5173\u952e\u8bcd\u6709\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f1a\u8bdd\u5efa\u7acb<\/li>\n\n\n\n<li>\u4f1a\u8bdd\u7ba1\u7406<\/li>\n\n\n\n<li>\u4f1a\u8bdd\u7ec8\u6b62<\/li>\n\n\n\n<li>\u540c\u6b65<\/li>\n<\/ul>\n\n\n\n<p>\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\uff1a<br><strong>\u4f1a\u8bdd\u5c42\u89e3\u51b3\u7684\u662f\u201c\u8fd9\u573a\u5bf9\u8bdd\u600e\u4e48\u5f00\u59cb\u3001\u8fdb\u884c\u548c\u7ed3\u675f\u201d\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">6. \u8868\u793a\u5c42\uff1a\u8d1f\u8d23\u201c\u8ba9\u6570\u636e\u80fd\u88ab\u770b\u61c2\u201d<\/h3>\n\n\n\n<p>\u8868\u793a\u5c42\u5904\u7406\u7684\u662f\u6570\u636e\u7684\u8868\u793a\u65b9\u5f0f\u3002<br>\u5982\u679c\u53cc\u65b9\u7cfb\u7edf\u8868\u793a\u65b9\u5f0f\u4e0d\u540c\uff0c\u5c31\u9700\u8981\u8fd9\u4e00\u5c42\u6765\u5b8c\u6210\u8f6c\u6362\u3002<\/p>\n\n\n\n<p>\u5e38\u89c1\u529f\u80fd\u5305\u62ec\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u683c\u5f0f\u8f6c\u6362<\/li>\n\n\n\n<li>\u7f16\u7801\u8f6c\u6362<\/li>\n\n\n\n<li>\u52a0\u5bc6 \/ \u89e3\u5bc6<\/li>\n\n\n\n<li>\u538b\u7f29 \/ \u89e3\u538b\u7f29<\/li>\n<\/ul>\n\n\n\n<p>\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\uff1a<br><strong>\u8868\u793a\u5c42\u89e3\u51b3\u7684\u662f\u201c\u6570\u636e\u957f\u4ec0\u4e48\u6837\uff0c\u53cc\u65b9\u80fd\u4e0d\u80fd\u770b\u61c2\u201d\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">7. \u5e94\u7528\u5c42\uff1a\u8d1f\u8d23\u201c\u7ed9\u7528\u6237\u63d0\u4f9b\u7f51\u7edc\u670d\u52a1\u201d<\/h3>\n\n\n\n<p>\u5e94\u7528\u5c42\u79bb\u7528\u6237\u6700\u8fd1\uff0c\u4e5f\u662f\u6700\u5bb9\u6613\u7406\u89e3\u7684\u4e00\u5c42\u3002<br>\u5b83\u76f4\u63a5\u4e3a\u7528\u6237\u63d0\u4f9b\u5404\u79cd\u7f51\u7edc\u5e94\u7528\u670d\u52a1\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7f51\u9875\u8bbf\u95ee<\/li>\n\n\n\n<li>\u6587\u4ef6\u4f20\u8f93<\/li>\n\n\n\n<li>\u90ae\u4ef6\u6536\u53d1<\/li>\n\n\n\n<li>\u57df\u540d\u89e3\u6790<\/li>\n<\/ul>\n\n\n\n<p>\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\uff1a<br><strong>\u5e94\u7528\u5c42\u89e3\u51b3\u7684\u662f\u201c\u7528\u6237\u5177\u4f53\u8981\u7528\u4ec0\u4e48\u7f51\u7edc\u529f\u80fd\u201d\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u600e\u4e48\u8bb0\u5fc6\u6700\u6709\u6548<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b9\u6cd5\u4e00\uff1a\u53e3\u8bc0\u8bb0\u5fc6<\/h3>\n\n\n\n<p>\u5148\u8bb0\u987a\u5e8f\uff1a<\/p>\n\n\n\n<p><strong>\u5e94\u8868\u4f1a\u4f20\u7f51\u94fe\u7269<\/strong><\/p>\n\n\n\n<p>\u8fd9\u662f\u6700\u57fa\u672c\u7684\u4e00\u6b65\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b9\u6cd5\u4e8c\uff1a\u81ea\u4e0b\u800c\u4e0a\u7406\u89e3<\/h3>\n\n\n\n<p>\u4ece\u5e95\u5c42\u5f80\u4e0a\u770b\uff0c\u903b\u8f91\u4f1a\u66f4\u987a\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7269\u7406\u5c42\uff1a\u53d1\u6bd4\u7279<\/li>\n\n\n\n<li>\u6570\u636e\u94fe\u8def\u5c42\uff1a\u7ec4\u5e27\u5e76\u5728\u94fe\u8def\u4e0a\u4f20\u8f93<\/li>\n\n\n\n<li>\u7f51\u7edc\u5c42\uff1a\u9009\u8def\u5e76\u8f6c\u53d1<\/li>\n\n\n\n<li>\u4f20\u8f93\u5c42\uff1a\u7aef\u5230\u7aef\u4f20\u8f93<\/li>\n\n\n\n<li>\u4f1a\u8bdd\u5c42\uff1a\u7ba1\u7406\u5bf9\u8bdd\u8fc7\u7a0b<\/li>\n\n\n\n<li>\u8868\u793a\u5c42\uff1a\u5904\u7406\u6570\u636e\u683c\u5f0f<\/li>\n\n\n\n<li>\u5e94\u7528\u5c42\uff1a\u63d0\u4f9b\u5e94\u7528\u670d\u52a1<\/li>\n<\/ul>\n\n\n\n<p>\u53ef\u4ee5\u538b\u7f29\u8bb0\u6210\u4e00\u53e5\uff1a<\/p>\n\n\n\n<p><strong>\u7269\u7406\u53d1\u6bd4\u7279\uff0c\u94fe\u8def\u7ec4\u5e27\uff0c\u7f51\u7edc\u9009\u8def\uff0c\u4f20\u8f93\u5230\u8fdb\u7a0b\uff0c\u4f1a\u8bdd\u7ba1\u5bf9\u8bdd\uff0c\u8868\u793a\u7ba1\u683c\u5f0f\uff0c\u5e94\u7528\u7ed9\u670d\u52a1\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u65b9\u6cd5\u4e09\uff1a\u751f\u6d3b\u5316\u7c7b\u6bd4<\/h3>\n\n\n\n<p>\u628a\u7f51\u7edc\u901a\u4fe1\u60f3\u6210\u5bc4\u5feb\u9012\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e94\u7528\u5c42\uff1a\u4f60\u8981\u5bc4\u4ec0\u4e48<\/li>\n\n\n\n<li>\u8868\u793a\u5c42\uff1a\u628a\u5185\u5bb9\u7ffb\u8bd1\u3001\u52a0\u5bc6\u3001\u538b\u7f29<\/li>\n\n\n\n<li>\u4f1a\u8bdd\u5c42\uff1a\u5efa\u7acb\u53cc\u65b9\u8054\u7cfb<\/li>\n\n\n\n<li>\u4f20\u8f93\u5c42\uff1a\u786e\u4fdd\u4e1c\u897f\u9001\u8fbe\u5bf9\u65b9\u624b\u91cc<\/li>\n\n\n\n<li>\u7f51\u7edc\u5c42\uff1a\u9009\u62e9\u8fd0\u8f93\u8def\u7ebf<\/li>\n\n\n\n<li>\u6570\u636e\u94fe\u8def\u5c42\uff1a\u4fdd\u8bc1\u6bcf\u4e00\u6bb5\u8def\u90fd\u80fd\u8d70\u901a<\/li>\n\n\n\n<li>\u7269\u7406\u5c42\uff1a\u771f\u6b63\u901a\u8fc7\u8f66\u3001\u8def\u3001\u7ebf\u8def\u628a\u4e1c\u897f\u8fd0\u51fa\u53bb<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u79cd\u65b9\u6cd5\u7279\u522b\u9002\u5408\u7406\u89e3\uff0c\u4e0d\u5bb9\u6613\u6b7b\u8bb0\u786c\u80cc\u540e\u53c8\u5fd8\u6389\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u5728\u8003\u7814\u4e2d\u5982\u4f55\u5feb\u901f\u533a\u5206<\/h2>\n\n\n\n<p>\u56fd\u5185\u7814\u7a76\u751f\u8003\u8bd5\u91cc\uff0cOSI \u4e03\u5c42\u7ecf\u5e38\u4e0d\u662f\u5355\u72ec\u95ee\u201c\u8bf7\u5199\u51fa\u4e03\u5c42\u201d\uff0c\u800c\u662f\u7ed9\u4f60\u4e00\u4e2a\u529f\u80fd\uff0c\u8ba9\u4f60\u5224\u65ad\u5b83\u5c5e\u4e8e\u54ea\u4e00\u5c42\u3002<br>\u8fd9\u65f6\u6700\u6709\u6548\u7684\u65b9\u6cd5\u5c31\u662f\u6293\u5173\u952e\u8bcd\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u770b\u5230\u8fd9\u4e9b\u8bcd\uff0c\u4f18\u5148\u60f3\u5230\u7269\u7406\u5c42<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4fe1\u53f7<\/li>\n\n\n\n<li>\u7535\u538b<\/li>\n\n\n\n<li>\u4f20\u8f93\u4ecb\u8d28<\/li>\n\n\n\n<li>\u63a5\u53e3<\/li>\n\n\n\n<li>\u6bd4\u7279\u6d41<\/li>\n\n\n\n<li>\u5e26\u5bbd<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u770b\u5230\u8fd9\u4e9b\u8bcd\uff0c\u4f18\u5148\u60f3\u5230\u6570\u636e\u94fe\u8def\u5c42<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e27<\/li>\n\n\n\n<li>MAC \u5730\u5740<\/li>\n\n\n\n<li>\u5dee\u9519\u68c0\u6d4b<\/li>\n\n\n\n<li>CRC<\/li>\n\n\n\n<li>\u5c40\u57df\u7f51<\/li>\n\n\n\n<li>\u4ea4\u6362\u673a<\/li>\n\n\n\n<li>\u4ecb\u8d28\u8bbf\u95ee\u63a7\u5236<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u770b\u5230\u8fd9\u4e9b\u8bcd\uff0c\u4f18\u5148\u60f3\u5230\u7f51\u7edc\u5c42<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IP \u5730\u5740<\/li>\n\n\n\n<li>\u8def\u7531\u9009\u62e9<\/li>\n\n\n\n<li>\u5206\u7ec4\u8f6c\u53d1<\/li>\n\n\n\n<li>\u8def\u7531\u5668<\/li>\n\n\n\n<li>\u8de8\u7f51\u7edc\u901a\u4fe1<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u770b\u5230\u8fd9\u4e9b\u8bcd\uff0c\u4f18\u5148\u60f3\u5230\u4f20\u8f93\u5c42<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7aef\u53e3\u53f7<\/li>\n\n\n\n<li>TCP \/ UDP<\/li>\n\n\n\n<li>\u7aef\u5230\u7aef<\/li>\n\n\n\n<li>\u53ef\u9760\u4f20\u8f93<\/li>\n\n\n\n<li>\u6d41\u91cf\u63a7\u5236<\/li>\n\n\n\n<li>\u62e5\u585e\u63a7\u5236<\/li>\n\n\n\n<li>\u590d\u7528\u5206\u7528<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u770b\u5230\u8fd9\u4e9b\u8bcd\uff0c\u4f18\u5148\u60f3\u5230\u4f1a\u8bdd\u5c42<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f1a\u8bdd\u5efa\u7acb<\/li>\n\n\n\n<li>\u4f1a\u8bdd\u7ba1\u7406<\/li>\n\n\n\n<li>\u4f1a\u8bdd\u7ec8\u6b62<\/li>\n\n\n\n<li>\u540c\u6b65<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u770b\u5230\u8fd9\u4e9b\u8bcd\uff0c\u4f18\u5148\u60f3\u5230\u8868\u793a\u5c42<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7f16\u7801\u8f6c\u6362<\/li>\n\n\n\n<li>\u52a0\u5bc6<\/li>\n\n\n\n<li>\u89e3\u5bc6<\/li>\n\n\n\n<li>\u538b\u7f29<\/li>\n\n\n\n<li>\u89e3\u538b\u7f29<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u770b\u5230\u8fd9\u4e9b\u8bcd\uff0c\u4f18\u5148\u60f3\u5230\u5e94\u7528\u5c42<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HTTP<\/li>\n\n\n\n<li>FTP<\/li>\n\n\n\n<li>SMTP<\/li>\n\n\n\n<li>DNS<\/li>\n\n\n\n<li>\u6587\u4ef6\u4f20\u8f93<\/li>\n\n\n\n<li>\u7535\u5b50\u90ae\u4ef6<\/li>\n\n\n\n<li>\u7f51\u9875\u8bbf\u95ee<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e03\u3001\u8003\u7814\u4e2d\u6700\u5bb9\u6613\u6df7\u6dc6\u7684\u51e0\u7ec4<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u6570\u636e\u94fe\u8def\u5c42 \u548c \u7f51\u7edc\u5c42<\/h3>\n\n\n\n<p>\u8fd9\u662f\u6700\u5bb9\u6613\u6df7\u7684\u4e00\u7ec4\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u94fe\u8def\u5c42\uff1a\u5f3a\u8c03<strong>\u76f8\u90bb\u8282\u70b9\u4e4b\u95f4<\/strong><\/li>\n\n\n\n<li>\u7f51\u7edc\u5c42\uff1a\u5f3a\u8c03<strong>\u6e90\u4e3b\u673a\u5230\u76ee\u7684\u4e3b\u673a<\/strong><\/li>\n<\/ul>\n\n\n\n<p>\u4e00\u53e5\u8bdd\u533a\u5206\uff1a<\/p>\n\n\n\n<p><strong>\u94fe\u8def\u5c42\u7ba1\u4e00\u6bb5\u8def\uff0c\u7f51\u7edc\u5c42\u7ba1\u6574\u6761\u8def\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u7f51\u7edc\u5c42 \u548c \u4f20\u8f93\u5c42<\/h3>\n\n\n\n<p>\u8fd9\u4e5f\u662f\u9ad8\u9891\u6df7\u6dc6\u70b9\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7f51\u7edc\u5c42\uff1a\u4e3b\u673a\u5230\u4e3b\u673a<\/li>\n\n\n\n<li>\u4f20\u8f93\u5c42\uff1a\u8fdb\u7a0b\u5230\u8fdb\u7a0b<\/li>\n<\/ul>\n\n\n\n<p>\u4e00\u53e5\u8bdd\u533a\u5206\uff1a<\/p>\n\n\n\n<p><strong>\u7f51\u7edc\u5c42\u8d1f\u8d23\u9001\u5230\u4e3b\u673a\uff0c\u4f20\u8f93\u5c42\u8d1f\u8d23\u9001\u5230\u8fdb\u7a0b\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. \u4f1a\u8bdd\u5c42\u3001\u8868\u793a\u5c42\u3001\u5e94\u7528\u5c42<\/h3>\n\n\n\n<p>\u8fd9\u4e09\u5c42\u90fd\u5728\u4e0a\u5c42\uff0c\u5f88\u591a\u4eba\u5bb9\u6613\u80cc\u4e71\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f1a\u8bdd\u5c42\uff1a\u7ba1\u5bf9\u8bdd\u8fc7\u7a0b<\/li>\n\n\n\n<li>\u8868\u793a\u5c42\uff1a\u7ba1\u6570\u636e\u683c\u5f0f<\/li>\n\n\n\n<li>\u5e94\u7528\u5c42\uff1a\u7ba1\u5177\u4f53\u670d\u52a1<\/li>\n<\/ul>\n\n\n\n<p>\u4e00\u53e5\u8bdd\u533a\u5206\uff1a<\/p>\n\n\n\n<p><strong>\u4f1a\u8bdd\u7ba1\u8fc7\u7a0b\uff0c\u8868\u793a\u7ba1\u683c\u5f0f\uff0c\u5e94\u7528\u7ba1\u670d\u52a1\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516b\u3001\u4e3a\u4ec0\u4e48\u56fd\u5185\u8003\u8bd5\u559c\u6b22\u8003 OSI \u4e03\u5c42<\/h2>\n\n\n\n<p>OSI \u4e03\u5c42\u7684\u5c42\u6b21\u66f4\u7ec6\uff0c\u529f\u80fd\u5212\u5206\u66f4\u6e05\u695a\uff0c\u7279\u522b\u9002\u5408\u547d\u9898\u3002<br>\u8003\u7814\u547d\u9898\u91cc\uff0c\u5b83\u5e38\u7528\u4e8e\u8003\u5bdf\u4f60\u662f\u5426\u771f\u6b63\u7406\u89e3\u201c\u7f51\u7edc\u5206\u5c42\u201d\u8fd9\u4ef6\u4e8b\uff0c\u800c\u4e0d\u53ea\u662f\u80cc\u534f\u8bae\u540d\u5b57\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\uff0c\u5bf9\u8003\u7814\u590d\u4e60\u6765\u8bf4\uff0cOSI \u4e03\u5c42\u6a21\u578b\u7684\u91cd\u70b9\u4e0d\u5728\u4e8e\u73b0\u5b9e\u4e2d\u662f\u5426\u6700\u5e38\u7528\uff0c\u800c\u5728\u4e8e\u4f60\u662f\u5426\u80fd\u505a\u5230\u4e0b\u9762\u8fd9\u51e0\u4ef6\u4e8b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6309\u987a\u5e8f\u5199\u51fa\u4e03\u5c42<\/li>\n\n\n\n<li>\u8bb0\u4f4f\u6bcf\u5c42\u6838\u5fc3\u804c\u8d23<\/li>\n\n\n\n<li>\u901a\u8fc7\u5173\u952e\u8bcd\u5feb\u901f\u5b9a\u4f4d\u5c42\u6b21<\/li>\n\n\n\n<li>\u533a\u5206\u5e38\u89c1\u6df7\u6dc6\u70b9<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e5d\u3001\u8003\u524d\u901f\u8bb0\u7248<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e03\u5c42\u987a\u5e8f<\/h3>\n\n\n\n<p><strong>\u5e94\u8868\u4f1a\u4f20\u7f51\u94fe\u7269<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e03\u5c42\u804c\u8d23<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7269\u7406\u5c42\uff1a\u4f20\u6bd4\u7279<\/li>\n\n\n\n<li>\u6570\u636e\u94fe\u8def\u5c42\uff1a\u6210\u5e27\u3001\u5dee\u9519\u68c0\u6d4b<\/li>\n\n\n\n<li>\u7f51\u7edc\u5c42\uff1a\u8def\u7531\u3001\u8f6c\u53d1<\/li>\n\n\n\n<li>\u4f20\u8f93\u5c42\uff1a\u7aef\u5230\u7aef\u3001\u53ef\u9760\u4f20\u8f93<\/li>\n\n\n\n<li>\u4f1a\u8bdd\u5c42\uff1a\u5efa\u7acb\u548c\u7ba1\u7406\u4f1a\u8bdd<\/li>\n\n\n\n<li>\u8868\u793a\u5c42\uff1a\u683c\u5f0f\u8f6c\u6362\u3001\u52a0\u5bc6\u3001\u538b\u7f29<\/li>\n\n\n\n<li>\u5e94\u7528\u5c42\uff1a\u63d0\u4f9b\u7f51\u7edc\u670d\u52a1<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e00\u53e5\u8bdd\u603b\u8bb0\u5fc6<\/h3>\n\n\n\n<p><strong>\u7269\u7406\u53d1\u6bd4\u7279\uff0c\u94fe\u8def\u7ec4\u5e27\uff0c\u7f51\u7edc\u9009\u8def\uff0c\u4f20\u8f93\u5230\u8fdb\u7a0b\uff0c\u4f1a\u8bdd\u7ba1\u5bf9\u8bdd\uff0c\u8868\u793a\u7ba1\u683c\u5f0f\uff0c\u5e94\u7528\u7ed9\u670d\u52a1\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u9644\u5f55\uff1a\u534f\u8bae\u3001\u6d41\u91cf\u63a7\u5236\u7531\u54ea\u51e0\u5c42\u5b8c\u6210<\/h1>\n\n\n\n<p>\u8fd9\u4e00\u90e8\u5206\u9002\u5408\u76f4\u63a5\u653e\u5728\u6587\u7ae0\u672b\u5c3e\uff0c\u4f5c\u4e3a\u590d\u4e60\u901f\u67e5\u8868\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u5e38\u89c1\u534f\u8bae\u6309\u5c42\u5212\u5206<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5c42\u6b21<\/th><th>\u5e38\u89c1\u534f\u8bae \/ \u4ee3\u8868\u5185\u5bb9<\/th><\/tr><\/thead><tbody><tr><td>\u5e94\u7528\u5c42<\/td><td>HTTP\u3001HTTPS\u3001FTP\u3001SMTP\u3001POP3\u3001IMAP\u3001DNS\u3001Telnet<\/td><\/tr><tr><td>\u8868\u793a\u5c42<\/td><td>\u7f16\u7801\u3001\u52a0\u5bc6\u3001\u538b\u7f29\u7b49\u673a\u5236<\/td><\/tr><tr><td>\u4f1a\u8bdd\u5c42<\/td><td>\u4f1a\u8bdd\u5efa\u7acb\u3001\u7ef4\u6301\u3001\u540c\u6b65\u7b49\u529f\u80fd<\/td><\/tr><tr><td>\u4f20\u8f93\u5c42<\/td><td>TCP\u3001UDP<\/td><\/tr><tr><td>\u7f51\u7edc\u5c42<\/td><td>IP\u3001ICMP\u3001IGMP<\/td><\/tr><tr><td>\u6570\u636e\u94fe\u8def\u5c42<\/td><td>PPP\u3001HDLC\u3001\u4ee5\u592a\u7f51\u534f\u8bae<\/td><\/tr><tr><td>\u7269\u7406\u5c42<\/td><td>\u5404\u79cd\u7269\u7406\u63a5\u53e3\u6807\u51c6\u3001\u53cc\u7ede\u7ebf\u3001\u5149\u7ea4\u7b49<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u6d41\u91cf\u63a7\u5236\u7531\u54ea\u51e0\u5c42\u5b8c\u6210<\/h2>\n\n\n\n<p>\u6d41\u91cf\u63a7\u5236\u4e3b\u8981\u7531\u4ee5\u4e0b\u4e24\u5c42\u5b8c\u6210\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6570\u636e\u94fe\u8def\u5c42<\/strong><\/li>\n\n\n\n<li><strong>\u4f20\u8f93\u5c42<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u5b83\u4eec\u5404\u81ea\u8d1f\u8d23\u4ec0\u4e48<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6570\u636e\u94fe\u8def\u5c42\u6d41\u91cf\u63a7\u5236<\/h3>\n\n\n\n<p>\u8d1f\u8d23<strong>\u76f8\u90bb\u8282\u70b9\u4e4b\u95f4<\/strong>\u7684\u6d41\u91cf\u63a7\u5236\u3002<br>\u4e5f\u5c31\u662f\u8bf4\uff0c\u4e00\u6761\u94fe\u8def\u4e0a\u53d1\u9001\u65b9\u4e0d\u80fd\u53d1\u5f97\u592a\u5feb\uff0c\u8981\u8003\u8651\u76f4\u63a5\u76f8\u8fde\u63a5\u6536\u65b9\u662f\u5426\u6765\u5f97\u53ca\u5904\u7406\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f20\u8f93\u5c42\u6d41\u91cf\u63a7\u5236<\/h3>\n\n\n\n<p>\u8d1f\u8d23<strong>\u7aef\u5230\u7aef<\/strong>\u7684\u6d41\u91cf\u63a7\u5236\u3002<br>\u5178\u578b\u4f8b\u5b50\u5c31\u662f TCP \u6d41\u91cf\u63a7\u5236\uff0c\u5b83\u8003\u8651\u7684\u662f\u901a\u4fe1\u53cc\u65b9\u4e3b\u673a\u4e2d\u8fdb\u7a0b\u4e4b\u95f4\u7684\u63a5\u6536\u80fd\u529b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u505a\u9898\u65f6\u600e\u4e48\u5224\u65ad<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9898\u76ee\u5f3a\u8c03\u8fd9\u4e9b\u5185\u5bb9\u65f6\uff0c\u4f18\u5148\u8003\u8651\u6570\u636e\u94fe\u8def\u5c42<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u76f8\u90bb\u8282\u70b9<\/li>\n\n\n\n<li>\u4e00\u6bb5\u94fe\u8def<\/li>\n\n\n\n<li>\u5e27\u4f20\u8f93<\/li>\n\n\n\n<li>\u5c40\u90e8\u4f20\u8f93\u901f\u5ea6\u5339\u914d<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u9898\u76ee\u5f3a\u8c03\u8fd9\u4e9b\u5185\u5bb9\u65f6\uff0c\u4f18\u5148\u8003\u8651\u4f20\u8f93\u5c42<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7aef\u5230\u7aef<\/li>\n\n\n\n<li>\u53d1\u9001\u4e3b\u673a\u4e0e\u63a5\u6536\u4e3b\u673a<\/li>\n\n\n\n<li>TCP<\/li>\n\n\n\n<li>\u63a5\u6536\u7a97\u53e3<\/li>\n\n\n\n<li>\u6ed1\u52a8\u7a97\u53e3<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u4e00\u53e5\u8bdd\u603b\u7ed3\u6d41\u91cf\u63a7\u5236<\/h2>\n\n\n\n<p><strong>\u5c40\u90e8\u94fe\u8def\u4e0a\u7684\u6d41\u91cf\u63a7\u5236\u770b\u6570\u636e\u94fe\u8def\u5c42\uff0c\u7aef\u5230\u7aef\u6574\u4f53\u6d41\u91cf\u63a7\u5236\u770b\u4f20\u8f93\u5c42\u3002<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u6700\u7ec8\u6d53\u7f29\u590d\u4e60\u7248<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u534f\u8bae\u5206\u5c42\u901f\u8bb0<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e94\u7528\u5c42\uff1aHTTP\u3001FTP\u3001SMTP\u3001DNS<\/li>\n\n\n\n<li>\u4f20\u8f93\u5c42\uff1aTCP\u3001UDP<\/li>\n\n\n\n<li>\u7f51\u7edc\u5c42\uff1aIP\u3001ICMP<\/li>\n\n\n\n<li>\u6570\u636e\u94fe\u8def\u5c42\uff1aPPP\u3001HDLC\u3001\u4ee5\u592a\u7f51<\/li>\n\n\n\n<li>\u7269\u7406\u5c42\uff1a\u5404\u79cd\u63a5\u53e3\u4e0e\u4f20\u8f93\u6807\u51c6<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u6d41\u91cf\u63a7\u5236\u7531\u8c01\u5b8c\u6210<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u94fe\u8def\u5c42<\/li>\n\n\n\n<li>\u4f20\u8f93\u5c42<\/li>\n<\/ul>\n\n\n\n<h3 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