{"id":62284,"date":"2026-01-19T17:50:09","date_gmt":"2026-01-19T09:50:09","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/62284.html"},"modified":"2026-01-19T17:50:09","modified_gmt":"2026-01-19T09:50:09","slug":"%e3%80%90%e8%ae%a1%e7%ae%97%e6%9c%ba%e7%bd%91%e7%bb%9c-%e7%ac%ac%e5%85%ab%e7%af%87%e3%80%91%e8%ae%a1%e7%bd%91%e4%b9%8b%e4%bc%a0%e8%be%93%e5%b1%82%ef%bc%88%e4%ba%8c%ef%bc%89-tcp","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/62284.html","title":{"rendered":"\u3010\u8ba1\u7b97\u673a\u7f51\u7edc | \u7b2c\u516b\u7bc7\u3011\u8ba1\u7f51\u4e4b\u4f20\u8f93\u5c42\uff08\u4e8c\uff09\u2014\u2014 TCP\u7684\u53ef\u9760\u4f20\u8f93\u4e0e\u6d41\u91cf\u63a7\u5236"},"content":{"rendered":"<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"243\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095000-696dfe48496aa.png\" width=\"243\" \/><\/p>\n<p 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style=\"color:#fe2c24\">\u6b64\u65f6\u6211\u4eecA\u91cd\u4f20\u540e&#xff0c;\u533a\u522b\u4e8e\u4e0a\u56fe\u7684\u5c31\u662f\u6211\u4eec\u4f1a\u8ba9B\u628a\u4e4b\u524dA\u7ed9\u7684M1\u5305\u4e22\u6389&#xff0c;\u7136\u540e\u91cd\u4f20\u786e\u8ba4M1<\/span>\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u90a3\u4e48\u6211\u4eec\u53f3\u8fb9\u5c31\u662f\u5c5e\u4e8eB\u7684\u786e\u8ba4\u5305\u5b9e\u5728\u592a\u6162\u4e86&#xff0c;\u6b64\u79cd\u60c5\u51b5\u6211\u4eecA\u4f1a\u76f4\u63a5\u5ffd\u89c6\u3002<\/p>\n<p style=\"text-align:center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"339\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095001-696dfe49aaa75.png\" width=\"637\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 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style=\"color:#fe2c24\">\u90a3\u8fd9\u5757\u7684\u7a97\u53e3\u5927\u5c0f\u600e\u4e48\u5b9a\u5462&#xff1f;\u662fA\u81ea\u5df1\u5b9a\u5417&#xff1f;<\/span>\u5176\u5b9e\u81ea\u5df1\u60f3\u60f3\u5c31\u4f1a\u89c9\u5f97\u5e94\u8be5\u662fB\u6765\u5b9a&#xff0c;\u56e0\u4e3a\u6211\u4eecB\u662f\u63a5\u53d7\u7aef&#xff0c;\u6211\u4eecA\u80fd\u53d1\u8fc7\u53bb\u8fd9\u4e48\u591a\u6570\u636e\u7684\u524d\u63d0\u662fB\u80fd\u63a5\u53d7\u8fd9\u4e48\u591a\u6570\u636e&#xff0c;\u90a3\u4e48\u5bf9\u4e8eB\u7684\u63a5\u53d7\u80fd\u529b\u5176\u5b9e\u5728\u5efa\u7acb\u8fde\u63a5\u7684\u8fc7\u7a0b\u4e2dB\u5c31\u5df2\u7ecf\u544a\u8bc9\u4e86A&#xff0c;\u800c\u5728\u4e2d\u9014\u4e2d&#xff0c;\u6211\u4eecA\u7684\u6ed1\u52a8\u7a97\u53e3\u4e5f\u968fB\u7684\u8981\u6c42\u53ef\u4ee5\u53d8\u5316\u3002<\/p>\n<p style=\"text-align:center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"455\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095002-696dfe4ac3181.png\" width=\"654\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u6211\u4eec\u73b0\u5728\u6765\u4e2a\u5927\u5bb6\u6293\u4e2a\u5305\u770b\u4e00\u4e0b&#xff0c;\u53ef\u4ee5\u770b\u5230\u8fd9\u662f\u4e00\u4e2a\u5927\u5c0f\u4e3a32\u5b57\u8282\u7684TCP\u62a5\u6587\u6bb5&#xff0c;\u4e5f\u5c31\u662f\u8bf4\u6b64\u62a5\u6587\u6bb5\u7684\u9009\u9879\u5b57\u6bb5\u662f\u6709\u5185\u5bb9\u7684&#xff0c;\u800c\u6211\u4eec\u7684\u7a97\u53e3\u5927\u5c0f\u7684\u5b57\u6bb5\u5c31\u5728\u6211\u4eec\u7684\u9009\u9879\u5b57\u6bb5\u4e2d&#xff0c;\u53ef\u4ee5\u770b\u6b64\u65f6\u8bf4\u7684<span style=\"color:#fe2c24\">MSS<\/span>&#xff0c;\u4e5f\u5c31\u662f\u6700\u5927\u6bb5\u5c3a\u5bf8\u662f1460\u5b57\u8282\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095004-696dfe4c7beab.png\" \/><\/p>\n<hr \/>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6211\u4eec\u8bb2\u5b8c\u6b63\u5e38\u7684\u4e4b\u540e&#xff0c;\u6211\u4eec\u73b0\u5728\u6765\u770b\u770b\u5f02\u5e38\u60c5\u51b5\u3002<\/p>\n<p>\u25cf\u00a0\u00a0\u5982\u679c\u63a5\u6536\u7a97\u53e3\u6700\u591a\u80fd\u63a54\u4e2a\u5305&#xff0c;\u4f46\u53d1\u9001\u65b9\u53ea\u53d1\u4e862\u4e2a\u5305<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0\u00a0\u63a5\u6536\u65b9\u7b49\u5f85\u4e00\u6bb5\u65f6\u95f4\u540e&#xff0c;\u6ca1\u6709\u6536\u5230\u7b2c3\u4e2a\u5305&#xff0c;\u5c31\u4f1a\u8fd4\u56de\u786e\u8ba4\u6536\u52302\u4e2a\u5305\u7ed9\u53d1\u9001\u65b9<\/p>\n<p>\u25cf\u00a0\u00a0\u6bcf\u4e2a\u5305\u591a\u5927&#xff0c;\u6bcf\u4e2a\u786e\u8ba4\u7f16\u53f7\u5982\u4f55\u7f16\u5740<\/p>\n<p>\u25cf\u00a0\u00a0\u5e8f\u53f7\u548c\u786e\u8ba4\u53f7<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 \u4f9d\u65e7\u662f\u5728\u4f20\u8f93\u8fc7\u7a0b\u7684<span style=\"color:#fe2c24\">\u6bcf\u4e00\u4e2a\u5b57\u8282\u90fd\u4f1a\u6709\u4e00\u4e2a\u7f16\u53f7<\/span><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 \u5728\u5efa\u7acb\u8fde\u63a5\u540e&#xff0c;\u5e8f\u53f7\u8868\u793a&#xff1a;<span style=\"color:#fe2c24\">\u8fd9\u4e00\u6b21\u4f20\u7ed9\u5bf9\u65b9\u7684TCP\u6570\u636e\u90e8\u5206\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u7684\u7f16\u53f7<\/span><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 \u5728\u5efa\u7acb\u8fde\u63a5\u540e&#xff0c;\u786e\u8ba4\u53f7\u8868\u793a&#xff1a;<span style=\"color:#fe2c24\">\u671f\u671b\u5bf9\u65b9\u4e0b\u4e00\u6b21\u4f20\u8fc7\u6765\u7684TCP\u6570\u636e\u90e8\u5206\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u7684\u7f16\u53f7<\/span><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u5176\u5b9e\u5e8f\u53f7\u548c\u786e\u8ba4\u53f7\u5c31\u8ddf\u4e4b\u524d\u6ca1\u5565\u533a\u522b\u4e86&#xff0c;\u6b64\u5904\u5f53\u590d\u4e60\u5373\u53ef&#xff1b;<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u6211\u4eec\u770b\u6b64\u56fe&#xff0c;<span style=\"color:#fe2c24\">1&gt;\u00a0 <\/span>B\u544a\u8bc9A\u63a5\u6536\u7a97\u53e3\u662f400\u5b57\u8282&#xff0c;A\u5c31\u8bbe\u7f6e\u53d1\u9001\u7a97\u53e3\u4e3a400\u5b57\u8282&#xff0c;\u7136\u540e\u6211\u4eec\u5c31\u6309\u7167\u4e00\u4e2a\u5305\u4e00\u4e2a\u5305\u7684\u7f16\u53f7&#xff0c;\u7136\u540e\u5c31\u53d1\u8fc7\u53bb\u3002<span style=\"color:#fe2c24\">2&gt;\u00a0 <\/span>\u53d1\u8fc7\u53bb\u4e4b\u540e\u5c31\u53ef\u4ee5\u770b\u5230&#xff0c;\u6211\u4eec\u7684\u63a5\u53d7\u5e94\u7528\u7a0b\u5e8f\u4f1a\u8bfb\u53d6\u63a5\u53d7\u7f13\u5b58\u533a\u91cc\u7684\u6570\u636e&#xff0c;\u5f53\u7136\u4e5f\u662f\u6309\u7167\u63a5\u6536\u7a97\u53e3\u7684\u5927\u5c0f\u6765\u8bfb&#xff0c;\u5f53\u8bfb\u5b8c\u540e&#xff0c;\u5c31\u4f1a\u53d1\u73b0\u6211\u4eec\u7684\u63a5\u53d7\u7a97\u53e3\u5c31\u79fb\u52a8\u5230\u4e0b\u4e00\u4e2a\u5730\u65b9\u4e86&#xff0c;<span style=\"color:#fe2c24\">\u8fd9\u4e5f\u662f\u8bfb\u5b8c\u540e\u7684\u6807\u5fd7<\/span>&#xff0c;\u7136\u540e\u6211\u4eec\u63a5\u6536\u7aef\u5c31\u4f1a\u56deack\u3002<span style=\"color:#fe2c24\">3&gt;\u00a0 <\/span>\u53d1\u9001\u7aef\u6536\u5230\u786e\u8ba4\u5305\u540e\u53d1\u9001\u7aef\u5c31\u5c06\u4e4b\u524d\u7684\u5206\u7ec4\u4ece\u7f13\u5b58\u533a\u4e2d\u5220\u9664\u3002\u7136\u540e\u8fdb\u884c\u7a97\u53e3\u6ed1\u52a8\u548c\u8c03\u6574\u7a97\u53e3&#xff0c;\u5e76\u4e14\u6211\u4eec\u53d1\u9001\u5e94\u7528\u7a0b\u5e8f\u4e5f\u5728\u4e0d\u65ad\u7684\u5f80\u7f13\u5b58\u533a\u91cc\u5199\u5165\u4e1c\u897f\u3002\u6700\u540e\u6211\u4eec\u7ee7\u7eed\u6309\u7167\u786e\u8ba4\u5305\u7684\u786e\u8ba4\u53f7\u7ec4\u6210\u5e8f\u53f7\u8fdb\u884c\u53d1\u9001\u3002<span style=\"color:#fe2c24\">4&gt;<\/span>\u00a0 \u6211\u4eec\u7a97\u53e3\u5728\u6ed1\u7684\u8fc7\u7a0b\u4e2d\u53d1\u73b0\u5c11\u4e86\u7b2c7\u4e2a\u5305\u540e&#xff0c;\u6211\u4eec\u5c31\u8981\u53d1\u4e00\u4e2a\u786e\u8ba4\u5305&#xff0c;\u8ba9\u53d1\u9001\u65b9\u628a\u7b2c7\u4e2a\u5305\u8865\u53d1\u8fc7\u6765&#xff0c;\u4e14\u4f1a\u8bf4\u660e\u5df2\u7ecf\u6536\u5230\u7b2c8\u4e2a\u5305\u3002<span style=\"color:#fe2c24\">5&gt;<\/span>\u00a0 \u7136\u540e\u53d1\u9001\u65b9\u5c31\u4f1a\u628a\u8be5\u5305\u53d1\u8fc7\u53bb&#xff0c;\u7136\u540e\u6309\u7167\u7a97\u53e3\u7684\u4f4d\u7f6e\u7ee7\u7eed\u53d1\u9001\u3002&#xff08;\u8fd9\u91cc\u6015\u6709\u4e9b\u4eba\u8bef\u4f1a&#xff0c;\u8fd9\u91cc\u7684\u56fe\u4e2d7\u5305\u662f\u5728\u6700\u4f4e\u4e0b\u7684&#xff0c;\u4f46\u5176\u5b9e\u8fd9\u4e2a\u4f4d\u7f6e\u8ddf\u53d1\u9001\u5148\u540e\u6ca1\u5173\u7cfb&#xff0c;\u6309\u7406\u6765\u8bf47\u5305\u751a\u81f3\u662f\u6700\u65e9\u53d1\u7684&#xff0c;\u653e\u5728\u4e0b\u9762\u53ea\u662f\u597d\u5199\u6ce8\u91ca&#xff09;\u90a3\u4e48\u540e\u9762\u5c31\u4e0d\u65ad\u5730\u6309\u7167\u6d41\u7a0b\u53bb\u505a\u5c31\u5b8c\u4e86\u3002<\/p>\n<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u4f46\u8fd9\u91cc\u7684\u56fe\u5176\u5b9e\u628a\u6211\u4eec\u4e0b\u4e00\u90e8\u5206\u8981\u8bb2\u7684\u4e1c\u897f\u6697\u793a\u4e86&#xff0c;\u4e5f\u5c31\u662f\u5728\u8865\u53d1\u7684\u65f6\u5019&#xff0c;\u56fe\u4e2d\u662f\u6ca1\u6709\u8865\u53d1\u7b2c8\u4e2a\u5305\u7684&#xff0c;\u4f46\u5728\u8fd9\u5176\u5b9e\u662f\u8981\u53d1\u7684&#xff0c;\u4f46\u6211\u4eec\u80fd\u4e0d\u80fd\u4e0d\u53d1\u5462&#xff0c;\u8fd9\u6837\u662f\u4e0d\u662f\u6548\u7387\u5927\u5927\u7684\u63d0\u9ad8\u4e86&#xff0c;\u80fd\u7684&#xff0c;\u5144\u5f1f\u80fd\u7684&#xff0c;\u7b54\u6848\u5c31\u662f<span style=\"color:#fe2c24\">\u9009\u62e9\u786e\u8ba4\u673a\u5236&#xff08;SACK&#xff09;<\/span><\/p>\n<p style=\"text-align:center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"657\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095005-696dfe4dd6c93.png\" width=\"663\" \/><\/p>\n<h3>\u4e09\u3001\u9009\u62e9\u6027\u786e\u8ba4&#xff08;SACK&#xff09;<\/h3>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5728TCP\u901a\u4fe1\u8fc7\u7a0b\u4e2d&#xff0c;\u5982\u679c\u53d1\u9001\u5e8f\u5217\u4e2d\u95f4\u67d0\u4e2a\u6570\u636e\u5305\u4e22\u5931&#xff08;\u6bd4\u5982\u4e0a\u56fe\u4e2d\u76847\u4e22\u5931\u4e86&#xff09;&#xff0c;TCP\u4f1a\u901a\u8fc7\u91cd\u4f20\u6700\u540e\u786e\u8ba4\u7684\u5206\u7ec4\u540e\u7eed\u7684\u5206\u7ec4&#xff08;\u6700\u540e\u786e\u8ba4\u7684\u662f6&#xff0c;\u4f1a\u91cd\u4f207&#xff0c;8&#xff0c;9&#xff0c;10&#xff09;&#xff0c;\u8fd9\u6837\u539f\u5148\u5df2\u7ecf\u6b63\u786e\u4f20\u8f93\u7684\u5206\u7ec4\u4e5f\u53ef\u80fd\u91cd\u590d\u53d1\u9001&#xff08;\u6bd4\u59828&#xff09;&#xff0c;\u964d\u4f4e\u4e86TCP\u6027\u80fd\u3002<\/p>\n<p>\u25cf\u00a0\u00a0\u53d1\u5c55\u51fa\u4e86SACK&#xff08;Selective acknowledgment&#xff0c;<span style=\"color:#fe2c24\">\u9009\u62e9\u6027\u786e\u8ba4<\/span>&#xff09;\u6280\u672f<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 \u544a\u8bc9\u53d1\u9001\u65b9\u54ea\u4e9b\u6570\u636e\u4e22\u5931&#xff0c;\u54ea\u4e9b\u6570\u636e\u5df2\u7ecf\u63d0\u524d\u6536\u5230<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 \u4f7fTCP\u53ea\u91cd\u65b0\u53d1\u9001\u4e22\u5931\u7684\u5305&#xff08;\u6bd4\u59827&#xff09;&#xff0c;\u4e0d\u7528\u53d1\u9001\u540e\u7eed\u6240\u6709\u7684\u5206\u7ec4&#xff08;\u6bd4\u59828&#xff09;<\/p>\n<p>\u25cf\u00a0\u00a0SACK\u4fe1\u606f\u4f1a\u653e\u5728TCP\u9996\u90e8\u7684\u9009\u9879\u90e8\u5206<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0\u00a0Kind&#xff1a;\u53601\u5b57\u8282\u3002<span style=\"color:#fe2c24\">\u503c\u4e3a5\u4ee3\u8868\u8fd9\u662fSACK\u9009\u9879<\/span><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0\u00a0Length&#xff1a;\u53601\u5b57\u8282\u3002<span style=\"color:#fe2c24\">\u8868\u660eSACK\u9009\u9879\u4e00\u5171\u5360\u7528\u591a\u5c11\u5b57\u8282<\/span><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0\u00a0Left Edge&#xff1a;\u53604\u5b57\u8282&#xff0c;\u5de6\u8fb9\u754c<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0\u00a0Right Edge&#xff1a;\u53604\u5b57\u8282&#xff0c;\u53f3\u8fb9\u754c<\/p>\n<p style=\"text-align:center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" class=\"left\" height=\"355\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095006-696dfe4e6af1b.png\" width=\"312\" \/><\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u53ef\u4ee5\u770b\u5230&#xff0c;\u4e0b\u56fe\u6211\u4eec\u68d5\u8272\u65b9\u5757\u7684\u90fd\u662f\u5df2\u7ecf\u6536\u5230\u7684\u6570\u636e\u6bb5&#xff0c;\u800c\u767d\u8272\u662f\u4e22\u5305\u7684&#xff0c;\u6bd4\u5982\u6211\u4eec201~300\u7684\u5305\u6ca1\u4e86&#xff0c;\u90a3\u4e48\u53f3\u8fb9\u754c\u548c\u5de6\u8fb9\u754c\u5206\u522b\u5c31\u662f201\u548c301&#xff0c;\u4e5f\u5c31\u662f\u5de6\u95ed\u53f3\u5f00\u7684\u4e00\u4e2a\u533a\u95f4&#xff0c;\u7136\u540e\u8ba9\u6211\u4eec\u63a5\u53d7\u7aef\u53bb\u770b\u8fd9\u4e2a\u4fe1\u606f&#xff0c;\u800c\u4e0a\u56fe\u5c31\u662f\u6211\u4eec\u7684\u5b58\u50a8\u5de6\u53f3\u8fb9\u754c\u7684\u683c\u5f0f\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u90a3\u80fd\u65e0\u9650\u5236\u7684\u5b58\u5417&#xff0c;\u90a3\u663e\u7136\u662f\u4e0d\u80fd\u7684&#xff0c;\u4e00\u65b9\u9762\u6211\u4eec\u9009\u9879\u5b57\u6bb5\u6ca1\u6709\u90a3\u4e48\u591a\u7a7a\u95f4&#xff0c;\u53e6\u4e00\u65b9\u9762\u4e22\u5931\u592a\u591a\u5305\u672c\u8eab\u5c31\u8bf4\u660e\u8be5\u8fde\u63a5\u8d28\u91cf\u8f83\u5dee&#xff0c;\u8fd8\u4e0d\u5982RST\u91cd\u8fde\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095006-696dfe4e8028e.png\" \/><\/p>\n<p>\u25cf\u00a0 \u4e00\u5bf9\u8fb9\u754c\u4fe1\u606f\u9700\u8981\u5360\u75288\u5b57\u8282&#xff0c;\u7531\u4e8eTCP\u9996\u90e8\u7684\u9009\u9879\u90e8\u5206\u6700\u591a40\u5b57\u8282<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 SACK\u9009\u9879\u6700\u591a\u643a\u5e264\u7ec4\u8fb9\u754c\u4fe1\u606f<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0\u00a0SACK\u9009\u9879\u7684\u6700\u5927\u5360\u7528\u5b57\u8282\u6570 &#061; 4 * 8 &#043; 2 &#061; 34<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u6211\u4eec\u6765\u770b\u4e0b\u56fe\u662f\u600e\u4e48\u53d1\u7684&#xff0c;\u524d\u4e24\u6761\u7684 len &#061; 0 \u53ef\u80fd\u53ea\u662f\u5728\u4ea4\u6362\u4fe1\u606f&#xff0c;\u771f\u6b63\u5f00\u59cb\u53d1\u7684\u662f\u7b2c\u4e09\u6761\u4fe1\u606f&#xff0c;\u5982\u679c\u524d\u9762\u5b66\u7684\u8fd8\u4e0d\u9519&#xff0c;\u8fd9\u5757\u5e94\u8be5\u770b\u8d77\u6765\u662f\u6ca1\u4ec0\u4e48\u95ee\u9898\u7684&#xff0c;\u6211\u4eec\u4e00\u6b21\u6027\u53d1\u4e865\u4e2a\u5305&#xff0c;\u7136\u540e\u6700\u7ec8\u7684\u786e\u8ba4\u53f7\u662f5433&#xff0c;\u7136\u540e\u63a5\u53d7\u7aef\u53d1\u786e\u8ba4\u5305&#xff0c;\u53d1\u9001\u7aef\u6536\u5230\u540e\u7ee7\u7eed\u53d1\u5305&#xff0c;\u6700\u7ec8\u5230\u5bfc\u6570\u7b2c4\u884c\u7684\u90a3\u4e2a\u5305\u5c31\u53d1\u5b8c\u4e86\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095006-696dfe4eaa334.png\" \/><\/p>\n<h4>\u25cf\u00a0 \u601d\u8003\u95ee\u9898<\/h4>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 \u4e3a\u4ec0\u4e48\u521a\u624d\u6211\u4eec\u6293\u5305\u7684\u65f6\u5019\u770b\u5230\u6211\u4eec\u7684\u6ed1\u52a8\u7a97\u53e3\u6700\u5927\u5c3a\u5bf8\u662f1460\u5b57\u8282&#xff1f;<\/p>\n<p>\u00a0 \u00a0 \u00a0 <span style=\"color:#fe2c24\">\u00a0 \u6211\u4eec\u6570\u636e\u662f\u5728\u6570\u636e\u94fe\u8def\u5c42\u4e0a\u4f20\u7684&#xff0c;\u90a3\u4e48\u94fe\u8def\u5c42\u4ee5\u592a\u7f51\u5934\u4e2d\u4f1a\u6709\u4e2aMTU&#xff0c;\u8fd9\u4e2aMTU\u662f&lt;&#061;1500\u7684&#xff0c;\u90a3\u8fd91500\u600e\u4e48\u6784\u6210\u7684&#xff0c;\u7f51\u7edc\u5c42\u7684\u534f\u8bae\u5934\u4e5f\u5c31\u662fIP\u5934\u4e00\u822c\u6765\u8bf4\u5c31\u662f20\u5b57\u8282\u7684\u56fa\u5b9a\u90e8\u5206&#xff0c;\u800c\u6211\u4eec\u4f20\u8f93\u5c42\u4e00\u822c\u4e5f\u662f20\u5b57\u8282\u7684\u56fa\u5b9a\u5b57\u6bb5&#xff0c;1500 &#8211; 40 &#061;1460 \u3002\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u4fdd\u8bc1\u6240\u6709\u4fdd\u8bc1\u62a5\u6587\u6bb5\u6700\u5c0f\u7684\u60c5\u51b5\u4e0b&#xff0c;\u6211\u4eec\u6570\u636e\u6700\u5927\u5c31\u662f1460\u4e86\u3002<\/span>\u5f53\u7136\u6709\u4eba\u4f1a\u8bf4\u521a\u624d\u4e0d\u662f\u6709\u5934\u5417&#xff0c;\u4e3a\u5565\u8fd8\u662f\u4f1a\u662f1460&#xff0c;\u90a3\u4f60\u4ed4\u7ec6\u60f3\u60f3\u8fd9\u4e2a1460\u662f\u7ed9\u8c01\u770b\u7684&#xff0c;\u662f\u4e0d\u662f\u63a5\u6536\u7aef\u7ed9\u53d1\u9001\u7aef\u770b\u7684&#xff0c;\u82e5\u53d1\u9001\u7aef\u62ff\u5230\u8fd9\u4e2a\u5305\u540e&#xff0c;\u5b83\u53ea\u662f\u6309\u7167\u8fd9\u4e2a\u89c4\u5219\u53bb\u53d1\u800c\u5df2\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 \u4e3a\u4ec0\u4e48\u9009\u62e9\u5728\u4f20\u8f93\u5c42\u5c06\u6570\u636e\u5206\u6210\u591a\u4e2a\u6bb5&#xff0c;\u800c\u4e0d\u662f\u7b49\u5230\u7f51\u7edc\u5c42\u5206\u7247\u4f20\u9012\u7ed9\u6570\u636e\u94fe\u8def\u5c42&#xff1f;<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u5982\u679c\u4f20\u8f93\u5c42\u7684\u6570\u636e\u5305\u4e0d\u5206\u5305&#xff0c;\u4f60\u4eec\u4e0d\u59a8\u60f3\u60f3\u4f1a\u6709\u4ec0\u4e48\u95ee\u9898&#xff0c;\u662f\u4e0d\u662f\u4e00\u65e6\u4e22\u5305\u540e&#xff0c;\u6574\u4e2a\u4f20\u8f93\u5c42\u7684\u6570\u636e\u6211\u4eec\u5168\u90e8\u90fd\u8981\u91cd\u4f20&#xff0c;\u8fd9\u6837\u6211\u4eec\u91cd\u4f20\u7684\u6548\u7387\u4f1a\u5f88\u6162&#xff0c;\u5f53\u7136\u592a\u5c0f\u4e5f\u4f1a\u6709\u95ee\u9898\u3002<\/p>\n<p><span style=\"color:#fe2c24\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u90a3\u4e3a\u4ec0\u4e48\u7f51\u7edc\u5c42\u8981\u5206\u5305&#xff1f;<\/span><\/p>\n<p><span style=\"color:#494949\">\u00a0 \u00a0 \u00a0 \u00a0\u00a0\u56e0\u4e3a\u6709\u4e9b\u573a\u5408\u662f\u8981\u6c42\u6211\u4eec\u76f4\u63a5\u5c06\u5305\u53d1\u7ed9\u7f51\u7edc\u5c42\u7684&#xff0c;\u6bd4\u5982ICMP&#xff0c;\u82e5\u6211\u4eec\u7f51\u7edc\u5c42\u4e0d\u5206\u5305\u5c31\u4f1a\u9047\u5230\u50cf\u521a\u624d\u4e00\u6837\u7684\u5957\u5a03\u95ee\u9898&#xff0c;\u5c31\u662f\u6211\u4eec\u94fe\u8def\u5c42\u4e5f\u9700\u8981\u5206&#xff0c;\u7f51\u7edc\u5c42\u4e0d\u5206\u4e5f\u4f1a\u5f71\u54cd\u5230\u6548\u7387\u95ee\u9898\u3002<\/span><\/p>\n<h2>TCP\u6d41\u91cf\u63a7\u5236<\/h2>\n<p>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5e94\u7528\u7a0b\u5e8f\u53ef\u80fd\u6b63\u5fd9\u4e8e\u5176\u4ed6\u4efb\u52a1&#xff0c;\u5e76\u4e0d\u4e00\u5b9a\u80fd\u591f\u7acb\u523b\u53d6\u8d70\u6570\u636e\u3002\u53d1\u9001\u7aef\u6301\u7eed\u53d1\u9001\u5927\u91cf\u6570\u636e&#xff0c;\u63a5\u6536\u7aef\u7f13\u5b58\u4f1a\u6ea2\u51fa&#xff0c;\u9020\u6210\u6570\u636e\u4e22\u5931\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u6240\u4ee5TCP\u4e3a\u5e94\u7528\u7a0b\u5e8f\u63d0\u4f9b\u4e86<span style=\"color:#fe2c24\">\u6d41\u91cf\u63a7\u5236<\/span>&#xff08;Flow Control&#xff09;\u673a\u5236&#xff0c;\u4ee5<span style=\"color:#fe2c24\">\u89e3\u51b3\u56e0\u53d1\u9001\u65b9\u53d1\u9001\u6570\u636e\u592a\u5feb\u800c\u5bfc\u81f4\u63a5\u6536\u65b9\u6765\u4e0d\u53ca\u63a5\u6536&#xff0c;\u9020\u6210\u63a5\u6536\u65b9\u7684\u63a5\u6536\u7f13\u5b58\u6ea2\u51fa\u7684\u95ee\u9898<\/span>\u3002<\/p>\n<h3>\u4e00\u3001\u57fa\u672c\u60c5\u51b5<\/h3>\n<p>\u25cf\u00a0\u00a0\u6d41\u91cf\u63a7\u5236\u7684\u57fa\u672c\u65b9\u6cd5&#xff1a;\u63a5\u6536\u65b9\u6839\u636e\u81ea\u5df1\u7684\u63a5\u6536\u80fd\u529b&#xff08;\u63a5\u6536\u7f13\u5b58\u7684\u53ef\u7528\u7a7a\u95f4\u5927\u5c0f&#xff09;\u63a7\u5236\u53d1\u9001\u65b9\u7684\u53d1\u9001\u901f\u7387\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 \u901a\u8fc7\u786e\u8ba4\u62a5\u6587\u4e2d\u7a97\u53e3\u5b57\u6bb5\u6765\u63a7\u5236\u53d1\u9001\u65b9\u7684\u53d1\u9001\u901f\u7387<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0\u00a0\u53d1\u9001\u65b9\u7684\u53d1\u9001\u7a97\u53e3\u5927\u5c0f\u4e0d\u80fd\u8d85\u8fc7\u63a5\u6536\u65b9\u7ed9\u51fa\u7a97\u53e3\u5927\u5c0f<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0\u00a0\u5f53\u53d1\u9001\u65b9\u6536\u5230\u63a5\u6536\u7a97\u53e3\u7684\u5927\u5c0f\u4e3a0\u65f6&#xff0c;\u53d1\u9001\u65b9\u5c31\u4f1a\u505c\u6b62\u53d1\u9001\u6570\u636e<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u5982\u679c\u4e0a\u9762\u7684\u5185\u5bb9\u90fd\u80fd\u770b\u61c2&#xff0c;\u90a3\u4e48\u4e0b\u56fe\u5e94\u8be5\u95ee\u9898\u4e0d\u4f1a\u592a\u5927&#xff0c;\u81ea\u5df1\u53ef\u4ee5\u4e0b\u53bb\u770b\u770b&#xff0c;\u719f\u6089\u719f\u6089\u3002\u5728\u6b64\u53ea\u8bf4\u4e0b\u6700\u540e\u4e00\u5757&#xff0c;\u5c31\u662f\u7a97\u53e3\u5927\u5c0f\u4ece0\u6269\u5230400\u540e\u53d1\u7ed9A\u7aef&#xff0c;A\u7aef\u662f\u4f1a\u7ee7\u7eed\u4f20\u7684\u3002<\/p>\n<p style=\"text-align:center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"539\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095007-696dfe4f977d5.png\" width=\"655\" \/><\/p>\n<h3>\u4e8c\u3001\u7279\u6b8a\u60c5\u51b5<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u00a0 \u4e00\u5f00\u59cb&#xff0c;\u63a5\u6536\u65b9\u7ed9\u53d1\u9001\u65b9\u53d1\u9001\u4e860\u7a97\u53e3\u7684\u62a5\u6587\u6bb5&#xff0c;\u540e\u9762&#xff0c;\u63a5\u6536\u65b9\u53c8\u6709\u4e86\u4e00\u4e9b\u5b58\u50a8\u7a7a\u95f4&#xff0c;\u7ed9\u53d1\u9001\u65b9\u53d1\u9001\u7684\u975e0\u7a97\u53e3\u7684\u62a5\u6587\u6bb5\u4e22\u5931\u4e86&#xff0c;\u53d1\u9001\u65b9\u7684\u53d1\u9001\u7a97\u53e3\u4e00\u76f4\u4e3a\u96f6&#xff0c;\u53cc\u65b9\u9677\u5165\u50f5\u5c40\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/01\/20260119095008-696dfe501e50a.png\" \/><\/p>\n<h4>\u89e3\u51b3\u65b9\u6848&#xff1a;<\/h4>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0 \u5f53\u53d1\u9001\u65b9\u6536\u52300\u7a97\u53e3\u901a\u77e5\u65f6&#xff0c;\u8fd9\u65f6\u53d1\u9001\u65b9\u505c\u6b62\u53d1\u9001\u62a5\u6587<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u00a0\u25cb\u00a0\u00a0\u5e76\u4e14\u540c\u65f6<span 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