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\u534f\u8bae\u7684\u8bbe\u8ba1\u601d\u8def\u5f80\u4e0b\u8d70&#xff0c;\u5148\u4ece\u6570\u636e\u53d1\u9001\u7684\u4e24\u79cd\u5de5\u4f5c\u6a21\u5f0f\u8bb2\u8d77&#xff0c;\u5398\u6e05\u505c\u7b49\u534f\u8bae\u4e0e\u6d41\u6c34\u7ebf\u6a21\u5f0f\u7684\u53d6\u820d&#xff1b;\u518d\u6df1\u5ea6\u62c6\u89e3\u5e8f\u53f7\u4e0e\u786e\u8ba4\u5e8f\u53f7\u7684\u6838\u5fc3\u4f5c\u7528&#xff0c;\u8fd8\u539f\u4e22\u5305\u3001\u4e71\u5e8f\u573a\u666f\u4e0b TCP \u7684\u771f\u5b9e\u5904\u7406\u903b\u8f91&#xff1b;\u968f\u540e\u8be6\u89e3\u6d41\u91cf\u63a7\u5236\u4e0e\u7a97\u53e3\u63a2\u6d4b\u673a\u5236\u3002\u6240\u6709\u5185\u5bb9\u5747\u4e25\u683c\u57fa\u4e8e TCP \u534f\u8bae\u89c4\u8303\u548c Linux \u5185\u6838\u5b9e\u73b0&#xff0c;\u529b\u6c42\u505a\u5230\u7406\u8bba\u4e0e\u5b9e\u8df5\u76f8\u7ed3\u5408\u3002<\/p>\n<h2 id=\"%E4%B8%80%E3%80%81TCP%C2%A0%E6%A0%B8%E5%BF%83%E7%9F%A5%E8%AF%86%E7%82%B9%E5%9B%9E%E9%A1%BE\">\u4e00\u3001TCP\u00a0\u6838\u5fc3\u77e5\u8bc6\u70b9\u56de\u987e<\/h2>\n<p>\u00a0 \u00a0 \u00a0 \u5728\u5f00\u59cb\u672c\u7bc7\u6587\u7ae0\u65b0\u5185\u5bb9\u4e4b\u524d&#xff0c;\u6211\u4eec\u5148\u68b3\u7406\u4e0a\u7bc7\u6587\u7ae0\u4e2dTCP\u7684\u57fa\u7840\u6838\u5fc3\u7ed3\u8bba&#xff0c;\u4f5c\u4e3a\u540e\u7eed\u5185\u5bb9\u7406\u89e3\u7684\u524d\u63d0&#xff1a;<\/p>\n<li>\u62a5\u6587\u4ea4\u4e92\u89c4\u5219&#xff1a;TCP \u901a\u4fe1\u53cc\u65b9\u4ea4\u4e92\u7684\u57fa\u672c\u5355\u5143\u662f\u5b8c\u6574 TCP \u62a5\u6587\u3002\u53d1\u9001\u65b9\u4f20\u8f93\u4e1a\u52a1\u6570\u636e\u65f6&#xff0c;\u6570\u636e\u4f1a\u5c01\u88c5\u6210 TCP \u62a5\u6587&#xff1b;\u63a5\u6536\u65b9\u8fd4\u56de\u7684\u5e94\u7b54\u62a5\u6587&#xff0c;\u5c31\u7b97\u4e0d\u643a\u5e26\u4efb\u4f55\u5e94\u7528\u5c42\u6570\u636e&#xff0c;\u4e5f\u5fc5\u987b\u4fdd\u7559\u5b8c\u6574 TCP \u62a5\u5934&#xff0c;\u4e0d\u4f1a\u5355\u72ec\u53ea\u53d1\u9001\u6807\u5fd7\u4f4d\u3002<\/li>\n<li>\u786e\u8ba4\u5e94\u7b54\u6838\u5fc3\u89c4\u5219&#xff1a;TCP \u5c5e\u4e8e\u5168\u53cc\u5de5\u53ef\u9760\u4f20\u8f93\u534f\u8bae&#xff0c;\u786e\u8ba4\u5e94\u7b54\u662f\u5b9e\u73b0\u53ef\u9760\u6027\u7684\u57fa\u7840\u3002\u5e94\u7b54\u62a5\u6587\u7531\u63a5\u6536\u7aef\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u7684 TCP \u534f\u8bae\u6808\u81ea\u52a8\u751f\u6210\u5e76\u56de\u590d&#xff0c;\u4e0d\u9700\u8981\u5e94\u7528\u5c42\u53c2\u4e0e\u3002 \u901a\u4fe1\u89c4\u5219&#xff1a;A \u5411 B \u53d1\u9001 TCP \u6570\u636e&#xff0c;B \u6536\u5230\u540e\u81ea\u52a8\u8fd4\u56de ACK \u5e94\u7b54&#xff1b;\u5e94\u7b54\u62a5\u6587\u672c\u8eab\u4e0d\u518d\u9700\u8981\u4e8c\u6b21\u5e94\u7b54&#xff0c;\u5426\u5219\u4f1a\u5f62\u6210\u65e0\u9650\u5faa\u73af&#xff0c;\u4e25\u91cd\u964d\u4f4e\u4f20\u8f93\u6548\u7387\u3002\u4f9d\u6258\u8fd9\u5957\u673a\u5236&#xff0c;\u901a\u4fe1\u53cc\u5411\u90fd\u53ef\u4ee5\u4fdd\u969c\u6570\u636e\u4f20\u8f93\u53ef\u9760\u3002<\/li>\n<li>\u8d85\u65f6\u91cd\u4f20\u5224\u5b9a\u903b\u8f91&#xff1a;\u53d1\u9001\u65b9\u6536\u5230 ACK \u5e94\u7b54&#xff0c;\u5c31\u53ef\u4ee5 100% \u786e\u8ba4\u63a5\u6536\u65b9\u5b8c\u6574\u6536\u5230\u6570\u636e&#xff0c;\u672c\u6b21\u4f20\u8f93\u53ef\u9760\u3002 \u5982\u679c\u53d1\u9001\u65b9\u6ca1\u6709\u6536\u5230\u5e94\u7b54&#xff0c;\u65e0\u6cd5\u533a\u5206\u662f\u539f\u59cb\u6570\u636e\u4e22\u5305&#xff0c;\u8fd8\u662f ACK \u5e94\u7b54\u62a5\u6587\u5728\u8def\u4e0a\u4e22\u5931\u3002TCP \u7edf\u4e00\u5904\u7406&#xff1a;\u8d85\u65f6\u65f6\u95f4\u5185\u6ca1\u6709\u6536\u5230\u5bf9\u5e94\u5e94\u7b54&#xff0c;\u5c31\u5224\u5b9a\u4f20\u8f93\u5f02\u5e38&#xff0c;\u81ea\u52a8\u89e6\u53d1\u62a5\u6587\u91cd\u4f20\u3002<\/li>\n<li>TCP \u53ef\u9760\u6027\u7684\u771f\u6b63\u5b9a\u4e49&#xff1a;TCP \u7684\u53ef\u9760&#xff0c;\u4e0d\u7b49\u4e8e\u5f3a\u5236\u4fdd\u8bc1\u6570\u636e\u4e00\u5b9a\u9001\u8fbe\u63a5\u6536\u65b9\u3002\u53ef\u9760\u6027\u7684\u6838\u5fc3\u672c\u8d28\u662f&#xff1a;\u65e0\u8bba\u4f20\u8f93\u6700\u7ec8\u6210\u529f\u8fd8\u662f\u5931\u8d25&#xff0c;\u53d1\u9001\u65b9\u4e00\u5b9a\u80fd\u591f\u611f\u77e5\u6700\u7ec8\u7ed3\u679c\u3002\u6536\u5230 ACK \u4ee3\u8868\u6570\u636e\u4ea4\u4ed8\u6210\u529f&#xff1b;\u8d85\u65f6\u65e0\u5e94\u7b54&#xff0c;\u5219\u5224\u5b9a\u4f20\u8f93\u5931\u8d25\u5e76\u91cd\u4f20\u3002\u5c31\u7b97\u9047\u5230\u7f51\u7ebf\u65ad\u5f00\u3001\u7f51\u7edc\u4e2d\u65ad\u8fd9\u7c7b\u573a\u666f&#xff0c;TCP \u4e5f\u53ef\u4ee5\u7cbe\u51c6\u611f\u77e5\u4f20\u8f93\u5931\u8d25\u7684\u72b6\u6001\u3002<\/li>\n<li>\u5168\u53cc\u5de5\u7279\u6027&#xff1a;TCP \u662f\u5168\u53cc\u5de5\u534f\u8bae&#xff0c;\u901a\u4fe1\u4e24\u7aef\u80fd\u591f\u540c\u65f6\u6536\u53d1\u6570\u636e\u3002\u8fd9\u4e2a\u7279\u6027\u6df1\u523b\u5f71\u54cd TCP \u7684\u8bf8\u591a\u8bbe\u8ba1&#xff0c;\u634e\u5e26\u5e94\u7b54\u3001\u4e09\u6b21\u63e1\u624b\u7b49\u673a\u5236&#xff0c;\u90fd\u5efa\u7acb\u5728\u5168\u53cc\u5de5\u7684\u57fa\u7840\u4e4b\u4e0a\u3002<\/li>\n<h2 id=\"%E4%BA%8C%E3%80%81%C2%A0TCP%20%E5%8F%91%E9%80%81%E6%95%B0%E6%8D%AE%E7%9A%84%E4%B8%A4%E7%A7%8D%E5%B7%A5%E4%BD%9C%E6%A8%A1%E5%BC%8F\">\u4e8c\u3001\u00a0TCP \u53d1\u9001\u6570\u636e\u7684\u4e24\u79cd\u5de5\u4f5c\u6a21\u5f0f<\/h2>\n<p>\u00a0 \u00a0 \u00a0 TCP \u4e3a\u9002\u914d\u4e0d\u540c\u7684\u6570\u636e\u4f20\u8f93\u573a\u666f&#xff0c;\u8bbe\u8ba1\u4e86\u4e24\u5957\u53d1\u9001\u5de5\u4f5c\u6a21\u5f0f&#xff1a;\u4e32\u884c\u53d1\u9001\u4e0e\u5e76\u884c\u6d41\u6c34\u7ebf\u53d1\u9001\u6a21\u5f0f\u3002<\/p>\n<h3 id=\"%C2%A0%202.1%20%E4%B8%B2%E8%A1%8C%E5%8F%91%E9%80%81%E6%A8%A1%E5%BC%8F%EF%BC%88%E5%81%9C%E7%AD%89%E5%8D%8F%E8%AE%AE%20Stop-and-Wait%EF%BC%89\">\u00a0 2.1 \u4e32\u884c\u53d1\u9001\u6a21\u5f0f&#xff08;\u505c\u7b49\u534f\u8bae Stop-and-Wait&#xff09;<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u5de5\u4f5c\u903b\u8f91&#xff1a;\u53d1\u9001\u65b9\u6bcf\u53d1\u51fa 1 \u4e2a\u62a5\u6587\u4e4b\u540e&#xff0c;\u5c31\u6682\u505c\u53d1\u9001&#xff0c;\u539f\u5730\u7b49\u5f85\u63a5\u6536\u65b9\u8fd4\u56de\u5bf9\u5e94\u7684 ACK \u5e94\u7b54\u3002\u5fc5\u987b\u6536\u5230\u5e94\u7b54&#xff0c;\u624d\u53ef\u4ee5\u7ee7\u7eed\u53d1\u9001\u4e0b\u4e00\u4efd\u62a5\u6587\u3002<\/p>\n<ul>\n<li>\u4f18\u70b9&#xff1a;\u903b\u8f91\u7b80\u5355&#xff0c;\u5929\u7136\u4e0d\u4f1a\u51fa\u73b0\u62a5\u6587\u4e71\u5e8f\u3001\u91cd\u590d\u63a5\u6536\u7684\u95ee\u9898&#xff0c;\u5b9e\u73b0\u6210\u672c\u4f4e\u3002<\/li>\n<li>\u7f3a\u70b9&#xff1a;\u4f20\u8f93\u6548\u7387\u5f88\u4f4e\u3002\u5728\u7b49\u5f85 ACK \u7684 RTT \u5f80\u8fd4\u65f6\u95f4\u5185&#xff0c;\u7f51\u7edc\u94fe\u8def\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001&#xff0c;\u5e26\u5bbd\u8d44\u6e90\u88ab\u6d6a\u8d39\u3002<\/li>\n<li>\u9002\u7528\u573a\u666f&#xff1a;\u53ea\u9002\u5408\u5c11\u91cf\u6570\u636e\u4f20\u8f93\u573a\u666f&#xff0c;\u5728\u771f\u5b9e TCP \u901a\u4fe1\u91cc\u5f88\u5c11\u5355\u72ec\u4f7f\u7528\u3002<\/li>\n<\/ul>\n<p>\u4e3b\u673aA                \u4e3b\u673aB<br \/>\n   |&#8212;- \u6570\u636e1 &#8212;&#8212;&gt;|<br \/>\n   |                  |<br \/>\n   |&lt;&#8212;- ACK1 &#8212;&#8212;-|<br \/>\n   |                  |<br \/>\n   |&#8212;- \u6570\u636e2 &#8212;&#8212;&gt;|<br \/>\n   |                  |<br \/>\n   |&lt;&#8212;- ACK2 &#8212;&#8212;-| <\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155037-6aaeaf4d190b9.png\" \/><\/p>\n<h3 id=\"%C2%A0%202.2%20%E5%B9%B6%E8%A1%8C%E5%8F%91%E9%80%81%E6%A8%A1%E5%BC%8F%EF%BC%88%E6%B5%81%E6%B0%B4%E7%BA%BF%E6%A8%A1%E5%BC%8F%20Pipelining%EF%BC%89\">\u00a0 2.2 \u5e76\u884c\u53d1\u9001\u6a21\u5f0f&#xff08;\u6d41\u6c34\u7ebf\u6a21\u5f0f Pipelining&#xff09;<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u8fd9\u662f TCP \u5b9e\u9645\u901a\u4fe1\u91cc\u4e3b\u6d41\u9ed8\u8ba4\u4f7f\u7528\u7684\u53d1\u9001\u6a21\u5f0f\u3002 \u00a0 \u00a0 \u00a0\u00a0\u5de5\u4f5c\u903b\u8f91&#xff1a;\u53d1\u9001\u65b9\u4e0d\u9700\u8981\u7b49\u5f85\u4e0a\u4e00\u4e2a\u62a5\u6587\u7684 ACK \u5e94\u7b54&#xff0c;\u5c31\u53ef\u4ee5\u8fde\u7eed\u5411\u5916\u53d1\u9001\u591a\u4e2a\u62a5\u6587&#xff0c;\u4e0d\u9700\u8981\u7b49\u5f85\u4e00\u8f6e RTT\u3002\u591a\u4e2a\u62a5\u6587\u7684\u6536\u53d1\u65f6\u95f4\u53ef\u4ee5\u76f8\u4e92\u91cd\u53e0&#xff0c;\u5145\u5206\u5229\u7528\u94fe\u8def\u5e26\u5bbd&#xff0c;\u5927\u5e45\u63d0\u5347\u7f51\u7edc\u541e\u5410\u4e0e\u4f20\u8f93\u6548\u7387\u3002<\/p>\n<p>\u4e3b\u673aA               \u4e3b\u673aB<br \/>\n|&#8212;&#8212; \u6570\u636e1 &#8212;&#8212;&gt;|<br \/>\n|&#8212;&#8212; \u6570\u636e2 &#8212;&#8212;&gt;|<br \/>\n|&#8212;&#8212; \u6570\u636e3 &#8212;&#8212;&gt;|<br \/>\n|&lt;&#8212;&#8211; ACK1  &#8212;&#8212;-|<br \/>\n|&lt;&#8212;&#8211; ACK2  &#8212;&#8212;-|<br \/>\n|&#8212;&#8212; \u6570\u636e4 &#8212;&#8212;&gt;|<br \/>\n|&lt;&#8212;&#8211; ACK3  &#8212;&#8212;-|<\/p>\n<p>\u5e76\u884c\u6d41\u6c34\u7ebf\u6a21\u5f0f\u867d\u7136\u89e3\u51b3\u4e86\u6027\u80fd\u74f6\u9888&#xff0c;\u4f46\u540c\u65f6\u5f15\u5165\u4e86\u65b0\u96be\u9898&#xff1a;<\/p>\n<li>\u5982\u679c\u591a\u4e2a\u62a5\u6587\u8fde\u7eed\u53d1\u51fa&#xff0c;\u4e2d\u95f4\u67d0\u4e2a\u62a5\u6587\u4e22\u5931&#xff0c;\u53d1\u9001\u65b9\u5982\u4f55\u5b9a\u4f4d\u5230\u5e95\u662f\u54ea\u4e00\u6bb5\u6570\u636e\u4e22\u5305&#xff1f;<\/li>\n<li>\u62a5\u6587\u5728\u7f51\u7edc\u8def\u7531\u8f6c\u53d1\u65f6\u4e71\u5e8f\u5230\u8fbe&#xff0c;\u63a5\u6536\u7aef\u600e\u4e48\u8fd8\u539f\u51fa\u539f\u59cb\u6570\u636e\u6d41\u987a\u5e8f&#xff1f;<\/li>\n<li>\u8d85\u65f6\u91cd\u4f20\u5e26\u6765\u91cd\u590d\u62a5\u6587&#xff0c;\u63a5\u6536\u7aef\u5982\u4f55\u8bc6\u522b\u5e76\u4e22\u5f03\u91cd\u590d\u6570\u636e&#xff1f;<\/li>\n<p>\u00a0 \u00a0 \u00a0 \u4e3a\u4e86\u89e3\u51b3\u5e76\u884c\u6d41\u6c34\u7ebf\u5e26\u6765\u7684\u4e22\u5305\u8bc6\u522b\u3001\u62a5\u6587\u6392\u5e8f\u3001\u53bb\u91cd\u7b49\u4e00\u7cfb\u5217\u95ee\u9898&#xff0c;TCP \u534f\u8bae\u5728\u62a5\u5934\u4e2d\u5b9a\u4e49\u4e86\u4e24\u4e2a\u6838\u5fc3\u5b57\u6bb5&#xff1a;32 \u4f4d\u5e8f\u53f7&#xff08;Sequence Number&#xff09; \u548c32 \u4f4d\u786e\u8ba4\u5e8f\u53f7&#xff08;Acknowledgment Number&#xff09;\u3002<\/p>\n<h2 id=\"%E4%B8%89%E3%80%81TCP%20%E5%BA%8F%E5%8F%B7%E4%B8%8E%E7%A1%AE%E8%AE%A4%E5%BA%8F%E5%8F%B7%E6%9C%BA%E5%88%B6\">\u4e09\u3001TCP \u5e8f\u53f7\u4e0e\u786e\u8ba4\u5e8f\u53f7\u673a\u5236<\/h2>\n<p>\u00a0 \u00a0 \u00a0 \u5e8f\u53f7\u4e0e\u786e\u8ba4\u5e8f\u53f7\u662f TCP \u5b9e\u73b0\u53ef\u9760\u4f20\u8f93\u4e0e\u6d41\u6c34\u7ebf\u9ad8\u6548\u4f20\u8f93\u7684\u6838\u5fc3&#xff0c;TCP \u7edd\u5927\u591a\u6570\u53ef\u9760\u6027\u673a\u5236\u90fd\u5efa\u7acb\u5728\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u4e4b\u4e0a\u3002<\/p>\n<h3 id=\"%C2%A0%203.1%20%E5%BA%8F%E5%8F%B7%E7%9A%84%E6%9C%AC%E8%B4%A8\">\u00a0 3.1 \u5e8f\u53f7\u7684\u672c\u8d28<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\u7ef4\u62a4\u53d1\u9001\u7f13\u51b2\u533a\u4e0e\u63a5\u6536\u7f13\u51b2\u533a&#xff0c;\u5e95\u5c42\u4f9d\u9760sk_buff\u5b58\u50a8\u62a5\u6587\u3002\u903b\u8f91\u5c42\u9762&#xff0c;TCP \u628a\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u6d41\u89c6\u4e3a\u4e00\u4e2a\u5de8\u5927\u8fde\u7eed\u5b57\u8282\u6570\u7ec4&#xff0c;\u5e8f\u53f7\u5c31\u662f\u8fd9\u4e2a\u5b57\u8282\u6570\u7ec4\u7684\u4e0b\u6807\u3002 \u00a0 \u00a0 \u00a0\u00a0TCP \u4e0d\u4f1a\u9010\u5b57\u8282\u53d1\u9001\u6570\u636e&#xff0c;\u800c\u662f\u5c06\u6570\u636e\u5206\u6279\u5c01\u88c5\u6210 TCP \u6570\u636e\u6bb5&#xff08;Segment&#xff09;\u8fdb\u884c\u4f20\u8f93\u3002<\/p>\n<p>\u4e3e\u4f8b&#xff1a;<\/p>\n<ul>\n<li>\u62a5\u6587\u627f\u8f7d\u7b2c 1&#xff5e;1000 \u5b57\u8282\u6570\u636e&#xff0c;\u8be5\u62a5\u6587\u7684\u5e8f\u53f7 &#061; 1<\/li>\n<li>\u4e0b\u4e00\u6bb5\u627f\u8f7d 1001&#xff5e;2000 \u5b57\u8282&#xff0c;\u5e8f\u53f7 &#061; 1001<\/li>\n<li>\u518d\u4e0b\u4e00\u6bb5\u627f\u8f7d 2001&#xff5e;3000 \u5b57\u8282&#xff0c;\u5e8f\u53f7 &#061; 2001<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"573\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155037-6aaeaf4dd4357.png\" width=\"600\" \/> <img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155038-6aaeaf4e351ef.png\" \/><\/p>\n<h3 id=\"%C2%A0%203.2%20%E7%A1%AE%E8%AE%A4%E5%BA%8F%E5%8F%B7%E5%AE%9A%E4%B9%89%E4%B8%8E%E7%B4%AF%E7%A7%AF%E7%A1%AE%E8%AE%A4%E6%9C%BA%E5%88%B6\">\u00a0 3.2 \u786e\u8ba4\u5e8f\u53f7\u5b9a\u4e49\u4e0e\u7d2f\u79ef\u786e\u8ba4\u673a\u5236<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u786e\u8ba4\u5e8f\u53f7\u8ba1\u7b97\u516c\u5f0f&#xff1a;\u786e\u8ba4\u5e8f\u53f7 &#061; \u6536\u5230\u7684\u6700\u540e\u4e00\u4e2a\u5b8c\u6574\u5b57\u8282\u7684\u5e8f\u53f7 &#043; 1 \u542b\u4e49&#xff1a;\u786e\u8ba4\u5e8f\u53f7 N&#xff0c;\u4ee3\u8868 N \u4e4b\u524d\u6240\u6709\u5b57\u8282\u5168\u90e8\u63a5\u6536\u5b8c\u6bd5&#xff0c;\u4e0b\u4e00\u6b21\u671f\u671b\u4ece\u5e8f\u53f7 N \u5f00\u59cb\u63a5\u6536\u6570\u636e\u3002<\/p>\n<p>\u793a\u4f8b&#xff1a;<\/p>\n<ul>\n<li>\u4e3b\u673a B \u6536\u5230 1~1000 \u5b57\u8282\u7684\u6570\u636e\u6bb5&#xff0c;\u56de\u590d\u786e\u8ba4\u5e8f\u53f7 1001&#xff1b;<\/li>\n<li>\u4e3b\u673a B \u6536\u5230 1001~2000 \u5b57\u8282\u7684\u6570\u636e\u6bb5&#xff0c;\u56de\u590d\u786e\u8ba4\u5e8f\u53f7 2001\u3002<\/li>\n<\/ul>\n<p>\u00a0 \u00a0 \u00a0 TCP \u91c7\u7528\u7d2f\u79ef\u786e\u8ba4&#xff0c;\u8fd9\u662f\u975e\u5e38\u5173\u952e\u7684\u7279\u6027&#xff1a; \u5982\u679c\u4e3b\u673a B \u5df2\u7ecf\u6536\u5230 1~1000\u30012001~3000&#xff0c;\u4f46\u4e2d\u95f4 1001~2000 \u8fd8\u672a\u6536\u5230&#xff0c;\u6b64\u65f6\u53ea\u80fd\u56de\u590d\u786e\u8ba4\u5e8f\u53f7 1001\u3002 \u54ea\u6015\u540e\u9762\u7684\u5b57\u8282\u63d0\u524d\u5230\u8fbe&#xff0c;\u4e5f\u4e0d\u4f1a\u786e\u8ba4\u540e\u9762\u7684\u6570\u636e&#xff0c;\u4ee5\u6b64\u4fdd\u969c TCP \u6709\u5e8f\u4ea4\u4ed8\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u7d2f\u79ef\u786e\u8ba4\u4f18\u52bf&#xff1a;\u5bb9\u9519\u80fd\u529b\u5f3a&#xff0c;\u4e2d\u95f4\u90e8\u5206 ACK \u62a5\u6587\u5728\u7f51\u7edc\u4e22\u5931\u4e5f\u4e0d\u4f1a\u9020\u6210\u4e25\u91cd\u5f71\u54cd&#xff0c;\u53ea\u8981\u540e\u7eed ACK \u62b5\u8fbe&#xff0c;\u53d1\u9001\u65b9\u5c31\u80fd\u786e\u8ba4\u6570\u636e\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155038-6aaeaf4e7e2ce.png\" \/><\/p>\n<h3 id=\"%C2%A0%203.3%20%E5%BA%8F%E5%8F%B7%E7%9A%84%E4%B8%89%E5%A4%A7%E6%A0%B8%E5%BF%83%E5%8A%9F%E8%83%BD\" style=\"background-color:transparent\">\u00a0 3.3 \u5e8f\u53f7\u7684\u4e09\u5927\u6838\u5fc3\u529f\u80fd<\/h3>\n<p>\u6b63\u662f\u4f9d\u9760\u5e8f\u53f7\u548c\u786e\u8ba4\u5e8f\u53f7&#xff0c;\u6d41\u6c34\u7ebf\u5e76\u884c\u53d1\u9001\u5e26\u6765\u7684\u5404\u7c7b\u96be\u9898\u5f97\u4ee5\u89e3\u51b3&#xff1a;<\/p>\n<ul>\n<li>\u4fdd\u969c\u4f20\u8f93\u53ef\u9760\u6027&#xff1a;\u63a5\u6536\u65b9\u901a\u8fc7\u786e\u8ba4\u5e8f\u53f7\u53cd\u9988\u63a5\u6536\u8fdb\u5ea6&#xff0c;\u53d1\u9001\u65b9\u80fd\u7cbe\u51c6\u5224\u65ad\u54ea\u4e9b\u6570\u636e\u6210\u529f\u9001\u8fbe\u3001\u54ea\u4e9b\u62a5\u6587\u4e22\u5931&#xff0c;\u89e6\u53d1\u8d85\u65f6\u91cd\u4f20\u3002<\/li>\n<li>\u62a5\u6587\u53bb\u91cd&#xff1a;\u8d85\u65f6\u91cd\u4f20\u573a\u666f\u4e0b\u63a5\u6536\u7aef\u53ef\u80fd\u6536\u5230\u91cd\u590d\u62a5\u6587&#xff0c;\u4f9d\u9760\u5e8f\u53f7\u8bc6\u522b\u91cd\u590d\u6570\u636e\u5e76\u4e22\u5f03\u3002<\/li>\n<li>\u5b9e\u73b0\u4e71\u5e8f\u91cd\u7ec4&#xff1a;\u7f51\u7edc\u4f20\u8f93\u65f6\u62a5\u6587\u53ef\u80fd\u4e71\u5e8f\u62b5\u8fbe&#xff0c;\u63a5\u6536\u7f13\u51b2\u533a\u5229\u7528\u5e8f\u53f7\u91cd\u65b0\u6392\u5e8f&#xff0c;\u6574\u7406\u6210\u6709\u5e8f\u6570\u636e\u6d41\u518d\u4ea4\u4ed8\u5e94\u7528\u5c42\u3002\u00a0\u00a0<\/li>\n<\/ul>\n<h3 id=\"%C2%A0%203.4%20%E7%BC%93%E5%86%B2%E5%8C%BA%E4%B8%8E%E5%BA%8F%E5%8F%B7%E7%9A%84%E9%80%BB%E8%BE%91%E5%85%B3%E7%B3%BB\">\u00a0 3.4 \u7f13\u51b2\u533a\u4e0e\u5e8f\u53f7\u7684\u903b\u8f91\u5173\u7cfb<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u53d1\u9001\u7f13\u51b2\u533a\u3001\u63a5\u6536\u7f13\u51b2\u533a\u5728\u5185\u6838\u4e2d\u4ee5 sk_buff \u961f\u5217\u7269\u7406\u5b58\u50a8\u3002\u903b\u8f91\u4e0a\u7b49\u6548\u4e3a\u8fde\u7eed\u5b57\u8282\u6570\u7ec4&#xff0c;\u7f13\u51b2\u533a\u91cc\u7684\u6bcf\u4e00\u5b57\u8282\u6570\u636e&#xff0c;\u90fd\u5bf9\u5e94\u552f\u4e00\u5e8f\u53f7\u4e0b\u6807\u3002 TCP \u6570\u636e\u6bb5\u53d1\u9001\u65f6&#xff0c;\u6309\u5b57\u8282\u8303\u56f4\u6253\u5305\u3002 \u00a0 \u00a0 \u00a0\u00a0\u4f8b\u5982\u4e00\u6bb5\u62a5\u6587\u5305\u542b 1000 \u5b57\u8282&#xff0c;\u8d77\u59cb\u5e8f\u53f7 1&#xff0c;\u8986\u76d6\u5b57\u8282 1~1000&#xff1b;\u4e0b\u4e00\u6bb5\u5c31\u4ece 1001 \u5f00\u59cb\u3002\u4e0d\u540c\u6570\u636e\u6bb5\u7684\u5e8f\u53f7\u81ea\u7136\u4e0d\u8fde\u7eed&#xff0c;\u6839\u6e90\u662f\u6bcf\u4e2a TCP \u6bb5\u643a\u5e26\u7684\u6570\u636e\u957f\u5ea6\u4e0d\u4e00\u6837\u3002<\/p>\n<h3 id=\"%C2%A0%203.5%20%E7%BB%8F%E5%85%B8%E5%9C%BA%E6%99%AF%EF%BC%9A%E4%B8%AD%E9%97%B4%E6%8A%A5%E6%96%87%E4%B8%A2%E5%8C%85%E7%9A%84%E5%A4%84%E7%90%86\">\u00a0 3.5 \u7ecf\u5178\u573a\u666f&#xff1a;\u4e2d\u95f4\u62a5\u6587\u4e22\u5305\u7684\u5904\u7406<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u573a\u666f&#xff1a;\u53d1\u9001\u65b9\u4f9d\u6b21\u53d1\u9001\u5e8f\u53f7 100\u3001200\u3001300\u3001400 \u56db\u6bb5\u62a5\u6587&#xff1b;\u5e8f\u53f7 300 \u7684\u62a5\u6587\u5728\u4f20\u8f93\u9014\u4e2d\u4e22\u5931&#xff0c;400 \u62a5\u6587\u5148\u62b5\u8fbe\u63a5\u6536\u7aef\u3002 \u00a0 \u00a0 \u00a0\u00a0\u6b64\u65f6\u63a5\u6536\u65b9\u4e0d\u80fd\u76f4\u63a5\u5e94\u7b54 400&#xff0c;\u4ecd\u7136\u6301\u7eed\u56de\u590d\u786e\u8ba4\u5e8f\u53f7 300\u3002 \u00a0 \u00a0 \u00a0\u00a0\u5373\u4fbf\u6536\u5230 400 \u8fd9\u4e00\u6bb5&#xff0c;\u63a5\u6536\u7aef\u4e5f\u4f1a\u544a\u77e5\u53d1\u9001\u65b9&#xff1a;300 \u4e4b\u524d\u7684\u6570\u636e\u5df2\u7ecf\u5168\u90e8\u6536\u5230&#xff0c;\u8bf7\u4ece 300 \u7ee7\u7eed\u53d1\u9001\u3002\u53ea\u6709 300 \u53f7\u62a5\u6587\u8865\u9f50\u4e4b\u540e&#xff0c;\u786e\u8ba4\u5e8f\u53f7\u624d\u4f1a\u7ee7\u7eed\u5411\u540e\u63a8\u8fdb\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u9762\u8bd5\u5c0f\u7ed3&#xff1a;\u786e\u8ba4\u5e8f\u53f7\u53ea\u786e\u8ba4\u8fde\u7eed\u7684\u524d\u7f6e\u5b57\u8282&#xff0c;\u540e\u9762\u63d0\u524d\u5230\u8fbe\u7684\u6570\u636e\u4e0d\u4f1a\u5355\u72ec\u786e\u8ba4&#xff0c;\u8fd9\u5c31\u662f\u7d2f\u79ef\u786e\u8ba4\u3002<\/p>\n<h4 id=\"%C2%A0%20%C2%A0%203.5.1%20%E5%89%8D%E7%BD%AE%E5%9F%BA%E7%A1%80%E5%AE%9A%E4%B9%89\">\u00a0 \u00a0 3.5.1 \u524d\u7f6e\u57fa\u7840\u5b9a\u4e49<\/h4>\n<p>\u00a0 \u00a0 \u00a0 TCP \u662f\u9762\u5411\u5b57\u8282\u6d41\u7684\u534f\u8bae&#xff0c;\u5168\u90e8\u6570\u636e\u90fd\u4f1a\u6309\u5b57\u8282\u5206\u914d\u8fde\u7eed\u5e8f\u53f7&#xff0c;\u5e8f\u53f7\u5bf9\u5e94\u5185\u6838\u63a5\u6536\u7f13\u51b2\u533a\u7684\u5b57\u8282\u4e0b\u6807\u3002<\/p>\n<ul>\n<li>\u62a5\u6587\u8d77\u59cb\u5e8f\u53f7&#xff1a;\u8be5\u62a5\u6587\u643a\u5e26\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u7684\u4e0b\u6807<\/li>\n<li>\u62a5\u6587\u7ed3\u675f\u5e8f\u53f7&#xff1a;\u8be5\u62a5\u6587\u643a\u5e26\u7684\u6700\u540e\u4e00\u4e2a\u5b57\u8282\u7684\u4e0b\u6807 &#061; \u8d77\u59cb\u5e8f\u53f7 &#043; \u62a5\u6587\u957f\u5ea6 &#8211; 1<\/li>\n<li>\u786e\u8ba4\u5e8f\u53f7 ACK&#xff1a;\u63a5\u6536\u65b9\u8fd4\u56de\u671f\u671b\u6536\u5230\u7684\u4e0b\u4e00\u4e2a\u5b57\u8282\u4e0b\u6807&#xff0c;\u542b\u4e49&#xff1a;\u6211\u5df2\u7ecf\u5b8c\u6574\u6536\u5230 ACK \u5e8f\u53f7\u4e4b\u524d\u7684\u5168\u90e8\u5b57\u8282&#xff0c;\u8fd9\u5c31\u662f TCP \u7d2f\u79ef\u786e\u8ba4\u7684\u6838\u5fc3\u89c4\u5219\u3002<\/li>\n<\/ul>\n<h4 id=\"%C2%A0%20%C2%A0%203.5.2%20%E6%AD%A3%E5%B8%B8%E6%97%A0%E4%B8%A2%E5%8C%85%E5%9C%BA%E6%99%AF%E7%9A%84%E5%BA%8F%E5%8F%B7%E6%B5%81%E8%BD%AC\">\u00a0 \u00a0 3.5.2 \u6b63\u5e38\u65e0\u4e22\u5305\u573a\u666f\u7684\u5e8f\u53f7\u6d41\u8f6c<\/h4>\n<p>\u00a0 \u00a0 \u00a0 \u8fde\u7eed\u53d1\u9001 4 \u4e2a\u62a5\u6587&#xff0c;\u6bcf\u4e2a\u62a5\u6587\u56fa\u5b9a\u627f\u8f7d 100 \u5b57\u8282\u6570\u636e&#xff1a;<\/p>\n<table>\n<tr>\u62a5\u6587\u7f16\u53f7\u8d77\u59cb\u5e8f\u53f7\u643a\u5e26\u5b57\u8282\u8303\u56f4\u7ed3\u675f\u5e8f\u53f7\u4e0b\u4e00\u4e2a\u62a5\u6587\u8d77\u59cb\u5e8f\u53f7<\/tr>\n<tbody>\n<tr>\n<td style=\"text-align:center\">\u62a5\u6587 1<\/td>\n<td style=\"text-align:center\">1<\/td>\n<td style=\"text-align:center\">1~100<\/td>\n<td style=\"text-align:center\">100<\/td>\n<td style=\"text-align:center\">101<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:center\">\u62a5\u6587 2<\/td>\n<td style=\"text-align:center\">101<\/td>\n<td style=\"text-align:center\">101~200<\/td>\n<td style=\"text-align:center\">200<\/td>\n<td style=\"text-align:center\">201<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:center\">\u62a5\u6587 3<\/td>\n<td style=\"text-align:center\">201<\/td>\n<td style=\"text-align:center\">201~300<\/td>\n<td style=\"text-align:center\">300<\/td>\n<td style=\"text-align:center\">301<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:center\">\u62a5\u6587 4<\/td>\n<td style=\"text-align:center\">301<\/td>\n<td style=\"text-align:center\">301~400<\/td>\n<td style=\"text-align:center\">400<\/td>\n<td style=\"text-align:center\">401<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0 \u00a0 \u00a0 \u7f51\u7edc\u6b63\u5e38\u65e0\u4e22\u5305\u3001\u4e0d\u4e71\u5e8f\u65f6&#xff0c;\u63a5\u6536\u65b9\u6536\u5230\u62a5\u6587\u540e\u56de\u590d\u5bf9\u5e94\u7684\u786e\u8ba4\u5e8f\u53f7&#xff1a;<\/p>\n<ul>\n<li>\u6536\u5230\u62a5\u6587 1 \u2192 \u8fd4\u56de ACK&#061;101&#xff1a;1~100 \u5b57\u8282\u5df2\u5168\u90e8\u63a5\u6536&#xff0c;\u4e0b\u6b21\u4ece 101 \u5f00\u59cb\u53d1\u9001<\/li>\n<li>\u6536\u5230\u62a5\u6587 2 \u2192 \u8fd4\u56de ACK&#061;201&#xff1a;1~200 \u5b57\u8282\u5df2\u5168\u90e8\u63a5\u6536&#xff0c;\u4e0b\u6b21\u4ece 201 \u5f00\u59cb\u53d1\u9001<\/li>\n<li>\u6536\u5230\u62a5\u6587 3 \u2192 \u8fd4\u56de ACK&#061;301&#xff1a;1~300 \u5b57\u8282\u5df2\u5168\u90e8\u63a5\u6536&#xff0c;\u4e0b\u6b21\u4ece 301 \u5f00\u59cb\u53d1\u9001<\/li>\n<li>\u6536\u5230\u62a5\u6587 4 \u2192 \u8fd4\u56de ACK&#061;401&#xff1a;1~400 \u5b57\u8282\u5df2\u5168\u90e8\u63a5\u6536&#xff0c;\u4e0b\u6b21\u4ece 401 \u5f00\u59cb\u53d1\u9001<\/li>\n<\/ul>\n<h4 id=\"%C2%A0%20%C2%A0%203.5.3%20%E6%8A%A5%E6%96%87%203%20%E4%B8%A2%E5%A4%B1%E3%80%81%E6%8A%A5%E6%96%87%204%20%E4%B9%B1%E5%BA%8F%E6%8F%90%E5%89%8D%E5%88%B0%E8%BE%BE%E5%9C%BA%E6%99%AF\">\u00a0 \u00a0 3.5.3 \u62a5\u6587 3 \u4e22\u5931\u3001\u62a5\u6587 4 \u4e71\u5e8f\u63d0\u524d\u5230\u8fbe\u573a\u666f<\/h4>\n<p>\u00a0 \u00a0 \u00a0 \u53d1\u9001\u65b9\u6309\u987a\u5e8f\u53d1\u9001&#xff1a;\u62a5\u6587 1 \u2192 \u62a5\u6587 2 \u2192 \u62a5\u6587 3 \u2192 \u62a5\u6587 4\u3002 \u7f51\u7edc\u4f20\u8f93\u53d1\u751f\u5f02\u5e38&#xff1a;\u62a5\u6587 1\u3001\u62a5\u6587 2 \u6b63\u5e38\u62b5\u8fbe\u63a5\u6536\u7aef&#xff1b;\u62a5\u6587 3&#xff08;201~300 \u5b57\u8282&#xff09;\u5728\u4f20\u8f93\u9014\u4e2d\u4e22\u5931&#xff1b;\u62a5\u6587 4&#xff08;301~400 \u5b57\u8282&#xff09;\u7ed5\u8fc7\u8def\u7531&#xff0c;\u5148\u4e8e\u62a5\u6587 3 \u5230\u8fbe\u63a5\u6536\u65b9\u3002<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u63a5\u6536\u65b9\u7f13\u51b2\u533a\u5f53\u524d\u72b6\u6001&#xff1a;<\/p>\n<ul>\n<li>\u2705 \u8fde\u7eed\u5b8c\u6574\u6536\u5230&#xff1a;1~200 \u5b57\u8282&#xff08;\u62a5\u6587 1\u3001\u62a5\u6587 2&#xff09;<\/li>\n<li>\u2705 \u63d0\u524d\u96f6\u6563\u6536\u5230&#xff1a;301~400 \u5b57\u8282&#xff08;\u62a5\u6587 4&#xff0c;\u4e34\u65f6\u5b58\u653e\u5728\u63a5\u6536\u7f13\u51b2\u533a&#xff09;<\/li>\n<li>\u274c \u7f3a\u5931\u7a7a\u7f3a\u6bb5&#xff1a;201~300 \u5b57\u8282&#xff08;\u62a5\u6587 3&#xff09;<\/li>\n<\/ul>\n<p>\u00a0 \u00a0 \u00a0 \u91cd\u70b9\u8bf4\u660e&#xff1a; \u867d\u7136\u62a5\u6587 4 \u5df2\u7ecf\u63d0\u524d\u5230\u8fbe\u5e76\u5b58\u5165\u63a5\u6536\u7f13\u51b2\u533a&#xff0c;\u63a5\u6536\u65b9\u4f9d\u7136\u53ea\u80fd\u56de\u590d ACK&#061;201&#xff0c;\u4e0d\u80fd\u8fd4\u56de ACK&#061;401\u3002 \u00a0 \u00a0 \u00a0\u00a0\u7d2f\u79ef\u786e\u8ba4\u6709\u786c\u6027\u7ea6\u675f&#xff1a;\u786e\u8ba4\u5e8f\u53f7\u53ea\u80fd\u6807\u8bb0\u5df2\u7ecf\u8fde\u7eed\u6536\u5230\u7684\u6700\u5927\u5b57\u8282\u7684\u4e0b\u4e00\u4f4d&#xff0c;\u4e0d\u80fd\u8df3\u8fc7\u4e2d\u95f4\u7f3a\u5931\u7684\u5b57\u8282\u3002 \u00a0 \u00a0 \u00a0\u00a0\u5982\u679c\u8fd4\u56de ACK&#061;401&#xff0c;\u4f1a\u8bef\u5bfc\u53d1\u9001\u65b9&#xff0c;\u8ba9\u53d1\u9001\u65b9\u8ba4\u4e3a 1~400 \u5168\u90e8\u6536\u5230&#xff0c;\u4e0d\u4f1a\u91cd\u4f20\u4e22\u5931\u7684 201~300 \u8fd9\u4e00\u6bb5&#xff0c;\u6700\u7ec8\u9020\u6210\u6570\u636e\u6c38\u4e45\u4e22\u5931\u3002 \u00a0 \u00a0 \u00a0\u00a0\u63a5\u6536\u7aef\u53ea\u4f1a\u6682\u5b58\u63d0\u524d\u62b5\u8fbe\u7684\u62a5\u6587 4&#xff0c;\u4f46\u4e0d\u4f1a\u66f4\u65b0\u786e\u8ba4\u5e8f\u53f7&#xff0c;\u5fc5\u987b\u7b49\u7a7a\u7f3a\u7684 201~300 \u5b57\u8282\u8865\u9f50\u4e4b\u540e&#xff0c;\u786e\u8ba4\u5e8f\u53f7\u624d\u4f1a\u5411\u540e\u63a8\u8fdb\u3002<\/p>\n<p>&#x1f449; \u60ac\u5ff5&#xff1a;\u6b64\u65f6\u53d1\u9001\u65b9\u6536\u5230 ACK&#061;201 \u91cd\u590d\u5e94\u7b54&#xff0c;\u5982\u4f55\u5224\u65ad\u662f\u62a5\u6587 3 \u53d1\u751f\u4e22\u5931\u3001\u9700\u8981\u91cd\u4f20\u62a5\u6587 3&#xff1f;\u8be5\u90e8\u5206\u4f9d\u8d56\u6ed1\u52a8\u7a97\u53e3\u3001\u5feb\u901f\u91cd\u4f20\u673a\u5236&#xff0c;\u6211\u4eec\u7559\u5230\u540e\u9762\u7ae0\u8282\u8be6\u7ec6\u8bb2\u89e3\u3002<\/p>\n<h4 id=\"%C2%A0%20%C2%A0%203.5.4%20%E8%A1%A5%E9%BD%90%E7%BC%BA%E5%A4%B1%E6%8A%A5%E6%96%87%E5%90%8E%E7%9A%84%E7%A1%AE%E8%AE%A4%E5%BA%94%E7%AD%94\">\u00a0 \u00a0 3.5.4 \u8865\u9f50\u7f3a\u5931\u62a5\u6587\u540e\u7684\u786e\u8ba4\u5e94\u7b54<\/h4>\n<p>\u00a0 \u00a0 \u00a0 \u53d1\u9001\u65b9\u89e6\u53d1\u91cd\u4f20&#xff0c;\u91cd\u65b0\u53d1\u9001\u62a5\u6587 3&#xff08;201~300 \u5b57\u8282&#xff09;\u3002\u63a5\u6536\u7aef\u6536\u5230\u91cd\u4f20\u7684\u62a5\u6587 3 \u540e&#xff0c;\u7f13\u51b2\u533a 1~400 \u5b57\u8282\u5168\u90e8\u8865\u9f50&#xff0c;\u6b64\u65f6\u63a5\u6536\u65b9\u8fd4\u56de ACK&#061;401\u3002 ACK&#061;401 \u5c5e\u4e8e\u7d2f\u79ef\u786e\u8ba4&#xff0c;\u5b83\u7684\u542b\u4e49\u662f&#xff1a;1~400 \u7684\u6240\u6709\u5b57\u8282\u6211\u90fd\u5b8c\u6574\u6536\u5230\u3002<\/p>\n<ul>\n<li>\u4e2d\u95f4\u7684 ACK&#061;201\u3001ACK&#061;301 \u5e94\u7b54\u62a5\u6587\u5c31\u7b97\u5728\u7f51\u7edc\u4e2d\u4e22\u5931\u4e5f\u6ca1\u5173\u7cfb<\/li>\n<li>\u53ea\u8981\u53d1\u9001\u65b9\u6536\u5230\u6700\u9ad8\u786e\u8ba4\u5e8f\u53f7 ACK&#061;401&#xff0c;\u5c31\u4ee3\u8868\u524d\u7f6e\u5168\u90e8\u5b57\u8282\u9001\u8fbe<\/li>\n<li>\u4e0d\u9700\u8981\u91cd\u590d\u91cd\u4f20\u4efb\u4f55\u62a5\u6587&#xff0c;\u76f4\u63a5\u4ece 401 \u5e8f\u53f7\u7ee7\u7eed\u4f20\u8f93\u540e\u7eed\u6570\u636e<\/li>\n<\/ul>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155039-6aaeaf4fd0f8c.png\" \/><\/p>\n<h4 id=\"%C2%A0%20%C2%A0%203.5.5%20%E6%A0%B8%E5%BF%83%E7%BB%93%E8%AE%BA\">\u00a0 \u00a0 3.5.5 \u6838\u5fc3\u7ed3\u8bba<\/h4>\n<li>TCP \u5e8f\u53f7\u662f\u5b57\u8282\u7ea7\u7f16\u53f7&#xff0c;\u4e0d\u662f\u62a5\u6587\u7f16\u53f7&#xff0c;\u62a5\u6587\u4e4b\u95f4\u5e8f\u53f7\u4e0d\u8fde\u7eed&#xff0c;\u662f\u56e0\u4e3a\u6bcf\u4e2a\u62a5\u6587\u627f\u8f7d\u591a\u4e2a\u5b57\u8282\u3002<\/li>\n<li>\u786e\u8ba4\u5e8f\u53f7\u6c38\u8fdc\u7b49\u4e8e&#xff1a;\u5df2\u8fde\u7eed\u63a5\u6536\u7684\u6700\u540e\u4e00\u4e2a\u5b57\u8282\u5e8f\u53f7 &#043; 1\u3002<\/li>\n<li>\u4e71\u5e8f\u63d0\u524d\u5230\u8fbe\u7684\u62a5\u6587\u4f1a\u88ab\u63a5\u6536\u7f13\u51b2\u533a\u6682\u5b58&#xff0c;\u4f46\u786e\u8ba4\u5e8f\u53f7\u4e0d\u4f1a\u5411\u524d\u63a8\u8fdb&#xff0c;\u76f4\u5230\u7a7a\u7f3a\u5b57\u8282\u8865\u9f50(\u91cd\u70b9\u7406\u89e3)\u3002<\/li>\n<li>\u7d2f\u79ef\u786e\u8ba4\u81ea\u5e26\u5bb9\u9519\u80fd\u529b&#xff0c;\u4e2d\u95f4 ACK \u5e94\u7b54\u4e22\u5931\u4e0d\u5f71\u54cd\u4f20\u8f93&#xff0c;\u53ea\u8981\u6536\u5230\u6700\u9ad8\u5e8f\u53f7\u7684\u786e\u8ba4&#xff0c;\u5c31\u4ee3\u8868\u524d\u9762\u6240\u6709\u6570\u636e\u5168\u90e8\u63a5\u6536\u6210\u529f\u3002<\/li>\n<h3 id=\"%C2%A0%203.6%20%E9%97%AE%E9%A2%98%EF%BC%9A%E4%B8%BA%E4%BB%80%E4%B9%88%E5%90%8C%E6%97%B6%E9%9C%80%E8%A6%81%E5%BA%8F%E5%8F%B7%E5%92%8C%E7%A1%AE%E8%AE%A4%E5%BA%8F%E5%8F%B7%EF%BC%9F\" style=\"background-color:transparent\">\u00a0 3.6 \u95ee\u9898&#xff1a;\u4e3a\u4ec0\u4e48\u540c\u65f6\u9700\u8981\u5e8f\u53f7\u548c\u786e\u8ba4\u5e8f\u53f7&#xff1f;<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u5728\u524d\u9762\u7684\u4f8b\u5b50\u91cc&#xff0c;\u6211\u4eec\u770b\u5230\u786e\u8ba4\u5e8f\u53f7\u53ef\u4ee5\u8868\u793a \u201c\u6211\u5df2\u7ecf\u6536\u5230\u4e86\u54ea\u4e9b\u5b57\u8282\u201d\u3002 \u00a0 \u00a0 \u00a0\u00a0\u4e8e\u662f\u6709\u4eba\u4f1a\u95ee&#xff1a;\u65e2\u7136\u786e\u8ba4\u5e8f\u53f7\u5df2\u7ecf\u80fd\u8bf4\u660e\u63a5\u6536\u8fdb\u5ea6&#xff0c;\u4e3a\u4ec0\u4e48\u4e0d\u76f4\u63a5\u53ea\u7528\u4e00\u4e2a32\u4f4d\u5e8f\u53f7\u5b57\u6bb5&#xff1f;\u5e94\u7b54\u65f6\u628a\u5e8f\u53f7\u52a0 1 \u518d\u6dfb\u523032\u4f4d\u5e8f\u53f7\u4e2d\u8fd4\u56de\u4e0d\u5c31\u884c\u4e86&#xff1f;<\/p>\n<p>\u00a0 \u00a0 \u00a0 \u8fd9\u4e2a\u95ee\u9898\u7684\u5173\u952e\u5728\u4e8e&#xff1a;TCP \u662f\u5168\u53cc\u5de5\u534f\u8bae&#xff0c;\u901a\u4fe1\u53cc\u65b9\u53ef\u4ee5\u540c\u65f6\u53d1\u9001\u6570\u636e\u3002 \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b&#xff0c;\u53d1\u9001\u65b9\u4e0d\u4ec5\u8981\u6807\u8bc6 \u201c\u81ea\u5df1\u53d1\u7684\u6570\u636e\u5230\u4e86\u54ea\u91cc\u201d&#xff0c;\u8fd8\u8981\u6807\u8bc6 \u201c\u81ea\u5df1\u786e\u8ba4\u6536\u5230\u4e86\u5bf9\u65b9\u54ea\u4e9b\u6570\u636e\u201d\u3002<\/p>\n<h4 id=\"%C2%A0%20%C2%A0%203.6.1%20%E5%85%A8%E5%8F%8C%E5%B7%A5%E9%80%9A%E4%BF%A1%E8%A6%81%E6%B1%82%E5%8F%8C%E6%96%B9%E9%83%BD%E8%83%BD%E5%8F%91%E9%80%81%E5%92%8C%E7%A1%AE%E8%AE%A4\">\u00a0 \u00a0 3.6.1 \u5168\u53cc\u5de5\u901a\u4fe1\u8981\u6c42\u53cc\u65b9\u90fd\u80fd\u53d1\u9001\u548c\u786e\u8ba4<\/h4>\n<p>\u00a0 \u00a0 \u00a0 TCP \u5141\u8bb8\u4e24\u7aef\u540c\u65f6\u4f20\u8f93\u6570\u636e\u3002\u4e3b\u673a A \u53ef\u4ee5\u5411\u4e3b\u673a B \u53d1\u9001\u6570\u636e&#xff0c;\u4e3b\u673a B \u4e5f\u53ef\u4ee5\u540c\u65f6\u5411\u4e3b\u673a A \u53d1\u9001\u6570\u636e\u3002\u8fd9\u610f\u5473\u7740&#xff1a;<\/p>\n<ul>\n<li>\u6bcf\u4e00\u7aef\u90fd\u9700\u8981\u4e00\u4e2a \u201c\u53d1\u9001\u5e8f\u53f7\u201d&#xff0c;\u7528\u6765\u6807\u8bb0\u81ea\u5df1\u53d1\u9001\u6570\u636e\u7684\u5b57\u8282\u4f4d\u7f6e&#xff1b;<\/li>\n<li>\u6bcf\u4e00\u7aef\u4e5f\u9700\u8981\u4e00\u4e2a \u201c\u786e\u8ba4\u5e8f\u53f7\u201d&#xff0c;\u7528\u6765\u544a\u8bc9\u5bf9\u65b9&#xff1a;\u6211\u5df2\u7ecf\u6536\u5230\u4e86\u4f60\u7684\u54ea\u4e9b\u6570\u636e\u3002<\/li>\n<\/ul>\n<p>\u00a0 \u00a0 \u00a0 \u5982\u679c\u53ea\u6709\u4e00\u4e2a\u5e8f\u53f7\u5b57\u6bb5&#xff0c;\u5c31\u65e0\u6cd5\u540c\u65f6\u533a\u5206&#xff1a;<\/p>\n<ul>\n<li>\u5f53\u524d\u62a5\u6587\u662f\u5728\u63cf\u8ff0 \u201c\u6211\u53d1\u9001\u5230\u54ea\u91cc\u201d&#xff1b;<\/li>\n<li>\u8fd8\u662f\u5728\u63cf\u8ff0 \u201c\u6211\u786e\u8ba4\u6536\u5230\u4e86\u54ea\u91cc\u201d\u3002<\/li>\n<\/ul>\n<p>\u00a0 \u00a0 \u00a0 \u56e0\u6b64&#xff0c;\u5e8f\u53f7\u548c\u786e\u8ba4\u5e8f\u53f7\u662f\u4e24\u4e2a\u72ec\u7acb\u804c\u8d23&#xff1a;<\/p>\n<table>\n<tr>\u5b57\u6bb5\u4f5c\u7528<\/tr>\n<tbody>\n<tr>\n<td style=\"text-align:center\">\u5e8f\u53f7<\/td>\n<td style=\"text-align:center\">\u6807\u8bc6\u672c\u62a5\u6587\u643a\u5e26\u7684\u6570\u636e\u5728\u53d1\u9001\u65b9\u5b57\u8282\u6d41\u4e2d\u7684\u4f4d\u7f6e<\/td>\n<\/tr>\n<tr>\n<td style=\"text-align:center\">\u786e\u8ba4\u5e8f\u53f7<\/td>\n<td style=\"text-align:center\">\u6807\u8bc6\u63a5\u6536\u65b9\u5df2\u7ecf\u8fde\u7eed\u6536\u5230\u7684\u6700\u5927\u5b57\u8282\u4f4d\u7f6e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4 id=\"%C2%A0%20%C2%A0%203.6.2%20%E6%8D%8E%E5%B8%A6%E5%BA%94%E7%AD%94%EF%BC%9A%E4%B8%80%E4%B8%AA%E6%8A%A5%E6%96%87%E5%90%8C%E6%97%B6%E6%89%BF%E8%BD%BD%E6%95%B0%E6%8D%AE%E5%92%8C%20ACK\">\u00a0 \u00a0 3.6.2 \u634e\u5e26\u5e94\u7b54&#xff1a;\u4e00\u4e2a\u62a5\u6587\u540c\u65f6\u627f\u8f7d\u6570\u636e\u548c ACK<\/h4>\n<p>\u00a0 \u00a0 \u00a0 TCP \u7684\u5168\u53cc\u5de5\u7279\u6027\u5e26\u6765\u4e86\u4e00\u4e2a\u91cd\u8981\u4f18\u5316&#xff1a;\u634e\u5e26\u5e94\u7b54\u3002 \u00a0 \u00a0 \u00a0 \u5f53\u4e3b\u673a B \u9700\u8981\u5411\u4e3b\u673a A \u53d1\u9001\u6570\u636e\u65f6&#xff0c;\u5b83\u4e0d\u5fc5\u5355\u72ec\u53d1\u9001\u4e00\u6761\u7a7a\u7684 ACK \u62a5\u6587&#xff0c;\u800c\u662f\u53ef\u4ee5\u628a\u5bf9\u4e3b\u673a A \u7684\u786e\u8ba4\u4fe1\u606f&#xff0c;\u76f4\u63a5\u653e\u5230\u81ea\u5df1\u7684\u4e1a\u52a1\u6570\u636e\u62a5\u6587\u4e2d\u4e00\u8d77\u53d1\u9001\u3002<\/p>\n<p>\u4f8b\u5982&#xff1a;<\/p>\n<li>\u4e3b\u673a A \u5148\u5411\u4e3b\u673a B \u53d1\u9001\u6570\u636e&#xff0c;\u5b57\u8282\u8303\u56f4\u662f 1&#xff5e;1000&#xff1b;<\/li>\n<li>\u4e3b\u673a B \u6536\u5230\u540e&#xff0c;\u672c\u6765\u53ef\u4ee5\u8fd4\u56de\u4e00\u4e2a ACK&#061;1001&#xff1b;<\/li>\n<li>\u4f46\u5982\u679c\u6b64\u65f6\u4e3b\u673a B \u4e5f\u6709\u6570\u636e\u8981\u53d1\u7ed9\u4e3b\u673a A&#xff0c;\u6bd4\u5982\u5b57\u8282\u8303\u56f4\u662f 5001&#xff5e;6000&#xff1b;<\/li>\n<li>\u90a3\u4e48\u4e3b\u673a B \u53ef\u4ee5\u76f4\u63a5\u53d1\u9001\u4e00\u4e2a\u540c\u65f6\u5305\u542b\u6570\u636e\u7684\u62a5\u6587&#xff1a; \u81ea\u5df1\u7684\u53d1\u9001\u5e8f\u53f7&#xff1a;5001&#xff1b; \u5bf9\u4e3b\u673a A \u7684\u786e\u8ba4\u5e8f\u53f7&#xff1a;1001\u3002<\/li>\n<p>\u00a0 \u00a0 \u00a0 \u8fd9\u6837&#xff0c;\u8fd9\u4e2a\u62a5\u6587\u65e2\u643a\u5e26\u4e86\u4e3b\u673a B \u7684\u4e1a\u52a1\u6570\u636e&#xff0c;\u53c8\u5b8c\u6210\u4e86\u5bf9\u4e3b\u673a A \u7684\u786e\u8ba4&#xff0c;\u51cf\u5c11\u4e86\u5355\u72ec ACK \u62a5\u6587\u7684\u6570\u91cf&#xff0c;\u63d0\u9ad8\u4e86\u4f20\u8f93\u6548\u7387\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155041-6aaeaf516bf0d.png\" \/><\/p>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155042-6aaeaf52b6b8c.png\" \/><\/p>\n<h4 id=\"%C2%A0%20%C2%A0%203.6.3%20%E5%8C%BA%E5%88%86%EF%BC%9A%E6%8D%8E%E5%B8%A6%E5%BA%94%E7%AD%94%26%26%E7%BA%AFACK%E5%BA%94%E7%AD%94\">\u00a0 \u00a0 3.6.3 \u533a\u5206&#xff1a;\u634e\u5e26\u5e94\u7b54&amp;&amp;\u7eafACK\u5e94\u7b54<\/h4>\n<p>\u5f15\u51fa\u95ee\u9898&#xff1a;<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155043-6aaeaf53e3bda.png\" \/><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155044-6aaeaf5422ad7.png\" \/><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155045-6aaeaf554a090.png\" \/><\/p>\n<h4 id=\"%C2%A0%20%C2%A0%203.6.4%20%E5%B0%8F%E7%BB%93\">\u00a0 \u00a0 3.6.4 \u5c0f\u7ed3<\/h4>\n<p>\u00a0 \u00a0 \u00a0 TCP \u4e4b\u6240\u4ee5\u540c\u65f6\u9700\u8981\u5e8f\u53f7\u548c\u786e\u8ba4\u5e8f\u53f7&#xff0c;\u6839\u672c\u539f\u56e0\u6709\u4e24\u4e2a&#xff1a;<\/p>\n<li>TCP \u662f\u5168\u53cc\u5de5\u534f\u8bae&#xff0c;\u4e24\u7aef\u53ef\u4ee5\u540c\u65f6\u53d1\u9001\u6570\u636e&#xff0c;\u5fc5\u987b\u5206\u522b\u8ddf\u8e2a\u5404\u81ea\u7684\u53d1\u9001\u8fdb\u5ea6&#xff1b;<\/li>\n<li>TCP \u652f\u6301\u634e\u5e26\u5e94\u7b54&#xff0c;\u4e00\u4e2a\u62a5\u6587\u53ef\u4ee5\u540c\u65f6\u627f\u8f7d\u4e1a\u52a1\u6570\u636e\u548c\u786e\u8ba4\u4fe1\u606f&#xff0c;\u56e0\u6b64\u9700\u8981\u540c\u65f6\u6807\u8bc6 \u201c\u6211\u53d1\u7684\u6570\u636e\u201d \u548c \u201c\u6211\u786e\u8ba4\u7684\u6570\u636e\u201d\u3002<\/li>\n<p>\u00a0 \u00a0 \u00a0 \u8fd9\u4e5f\u8fdb\u4e00\u6b65\u8bf4\u660e&#xff1a;\u5e8f\u53f7\u548c\u786e\u8ba4\u5e8f\u53f7\u5e76\u4e0d\u662f\u4e24\u4e2a\u5b64\u7acb\u7684\u6570\u5b57&#xff0c;\u800c\u662f TCP \u53ef\u9760\u6027\u3001\u987a\u5e8f\u63a7\u5236\u548c\u6d41\u91cf\u63a7\u5236\u7684\u91cd\u8981\u57fa\u7840\u3002\u540e\u7eed\u8bb2\u89e3\u6ed1\u52a8\u7a97\u53e3\u65f6&#xff0c;\u8fd8\u4f1a\u770b\u5230\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u5982\u4f55\u914d\u5408\u7a97\u53e3\u5927\u5c0f&#xff0c;\u5171\u540c\u51b3\u5b9a\u53d1\u9001\u65b9\u53ef\u4ee5\u8fde\u7eed\u53d1\u9001\u591a\u5c11\u6570\u636e\u3002<\/p>\n<h2 id=\"%E5%9B%9B%E3%80%81TCP%2016%20%E4%BD%8D%E7%AA%97%E5%8F%A3%E5%A4%A7%E5%B0%8F%E4%B8%8E%E6%B5%81%E9%87%8F%E6%8E%A7%E5%88%B6\">\u56db\u3001TCP 16 \u4f4d\u7a97\u53e3\u5927\u5c0f\u4e0e\u6d41\u91cf\u63a7\u5236<\/h2>\n<h3 id=\"%C2%A0%204.1%20%E6%B5%81%E9%87%8F%E6%8E%A7%E5%88%B6%E4%BA%A7%E7%94%9F%E8%83%8C%E6%99%AF\">\u00a0 4.1 \u6d41\u91cf\u63a7\u5236\u4ea7\u751f\u80cc\u666f<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u5373\u4fbf\u7f51\u7edc\u5e26\u5bbd\u5145\u8db3&#xff0c;\u53d1\u9001\u65b9\u4e5f\u4e0d\u80fd\u65e0\u9650\u5236\u6301\u7eed\u53d1\u9001\u6570\u636e\u3002\u63a5\u6536\u4e3b\u673a\u7684\u5904\u7406\u80fd\u529b\u5b58\u5728\u4e0a\u9650&#xff0c;\u5982\u679c\u53d1\u9001\u901f\u7387\u8fc7\u5feb&#xff0c;\u5185\u6838\u63a5\u6536\u7f13\u51b2\u533a\u4f1a\u88ab\u8fc5\u901f\u586b\u6ee1&#xff0c;\u540e\u7eed\u5230\u8fbe\u7684\u6570\u636e\u4f1a\u76f4\u63a5\u4e22\u5f03\u3002 \u00a0 \u00a0 \u00a0\u00a0\u6570\u636e\u5305\u4e00\u65e6\u4e22\u5931&#xff0c;\u4f1a\u89e6\u53d1 TCP \u8d85\u65f6\u91cd\u4f20&#xff0c;\u53cd\u590d\u91cd\u4f20\u4f1a\u6d6a\u8d39\u7f51\u7edc\u5e26\u5bbd\u3001\u4e3b\u673a CPU \u4ee5\u53ca\u5185\u5b58\u8d44\u6e90&#xff0c;\u4f20\u8f93\u6548\u7387\u5927\u5e45\u4e0b\u964d\u3002TCP \u5f15\u5165\u6d41\u91cf\u63a7\u5236\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898&#xff0c;\u800c TCP \u5934\u90e8\u768416 \u4f4d\u7a97\u53e3\u5927\u5c0f\u5b57\u6bb5\u5c31\u662f\u6d41\u91cf\u63a7\u5236\u7684\u6838\u5fc3\u8f7d\u4f53\u3002<\/p>\n<h3 id=\"%C2%A0%204.2%20%E6%8E%A5%E6%94%B6%E6%96%B9%E6%8E%A5%E6%94%B6%E8%83%BD%E5%8A%9B%E7%9A%84%E9%87%8F%E5%8C%96%E6%A0%87%E5%87%86\">\u00a0 4.2 \u63a5\u6536\u65b9\u63a5\u6536\u80fd\u529b\u7684\u91cf\u5316\u6807\u51c6<\/h3>\n<p>\u63a5\u6536\u65b9\u7684\u63a5\u6536\u80fd\u529b&#xff0c;\u7531\u5185\u6838\u63a5\u6536\u7f13\u51b2\u533a\u7684\u5269\u4f59\u7a7a\u95f2\u7a7a\u95f4\u51b3\u5b9a&#xff1a;<\/p>\n<ul>\n<li>\u63a5\u6536\u7f13\u51b2\u533a\u7684\u5269\u4f59\u7a7a\u95f4\u8d8a\u5927&#xff0c;\u4ee3\u8868\u63a5\u6536\u80fd\u529b\u8d8a\u5f3a&#xff0c;\u53ef\u4ee5\u63a5\u6536\u66f4\u591a\u6570\u636e&#xff1b;<\/li>\n<li>\u63a5\u6536\u7f13\u51b2\u533a\u7684\u5269\u4f59\u7a7a\u95f4\u8d8a\u5c0f&#xff0c;\u63a5\u6536\u80fd\u529b\u8d8a\u5f31&#xff1b;<\/li>\n<li>\u63a5\u6536\u7f13\u51b2\u533a\u7684\u5269\u4f59\u7a7a\u95f4\u4e3a 0&#xff0c;\u7f13\u51b2\u533a\u5df2\u6ee1&#xff0c;\u65e0\u6cd5\u63a5\u6536\u65b0\u6570\u636e\u3002<\/li>\n<\/ul>\n<h3 id=\"%C2%A0%204.3%2016%20%E4%BD%8D%E7%AA%97%E5%8F%A3%E5%A4%A7%E5%B0%8F%E5%AD%97%E6%AE%B5%E5%90%AB%E4%B9%89\">\u00a0 4.3 16 \u4f4d\u7a97\u53e3\u5927\u5c0f\u5b57\u6bb5\u542b\u4e49<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u7a97\u53e3\u5927\u5c0f\u5b57\u6bb5\u8868\u793a\u63a5\u6536\u65b9\u5f53\u524d\u63a5\u6536\u7f13\u51b2\u533a\u5269\u4f59\u7a7a\u95f2\u5b57\u8282\u6570\u91cf&#xff0c;\u5355\u4f4d\u662f\u5b57\u8282\u3002 \u63a5\u6536\u65b9\u5728\u56de\u590d ACK \u5e94\u7b54\u62a5\u6587\u65f6&#xff0c;\u4f1a\u628a\u81ea\u8eab\u63a5\u6536\u7f13\u51b2\u533a\u5269\u4f59\u7a7a\u95f4\u5199\u5165\u7a97\u53e3\u5927\u5c0f\u5b57\u6bb5&#xff0c;\u544a\u8bc9\u53d1\u9001\u65b9\u5f53\u524d\u8fd8\u80fd\u63a5\u6536\u591a\u5c11\u5b57\u8282\u7684\u6570\u636e\u3002 \u53d1\u9001\u65b9\u8bfb\u53d6 ACK \u4e2d\u7684\u7a97\u53e3\u503c&#xff0c;\u52a8\u6001\u8c03\u6574\u53d1\u9001\u901f\u5ea6&#xff1a;<\/p>\n<ul>\n<li>\u7a97\u53e3\u5927&#xff1a;\u63a5\u6536\u65b9\u5904\u7406\u538b\u529b\u5c0f&#xff0c;\u53d1\u9001\u65b9\u53ef\u4ee5\u6301\u7eed\u53d1\u9001\u8f83\u591a\u6570\u636e&#xff1b;<\/li>\n<li>\u7a97\u53e3\u5c0f&#xff1a;\u63a5\u6536\u65b9\u7f13\u51b2\u533a\u5269\u4f59\u7a7a\u95f4\u7d27\u5f20&#xff0c;\u53d1\u9001\u65b9\u9700\u8981\u964d\u4f4e\u53d1\u9001\u901f\u7387&#xff1b;<\/li>\n<li>\u7a97\u53e3\u4e3a 0&#xff1a;\u63a5\u6536\u7f13\u51b2\u533a\u5df2\u6ee1&#xff0c;\u53d1\u9001\u65b9\u5fc5\u987b\u6682\u505c\u53d1\u9001\u4e1a\u52a1\u6570\u636e\u3002<\/li>\n<\/ul>\n<p>\u8ba1\u7b97\u516c\u5f0f&#xff1a;\u7a97\u53e3\u5927\u5c0f &#061; \u63a5\u6536\u7f13\u51b2\u533a\u603b\u5927\u5c0f &#8211; \u7f13\u51b2\u533a\u5df2\u4f7f\u7528\u5b57\u8282\u6570<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155046-6aaeaf562c0cd.png\" \/><\/p>\n<h3 id=\"%C2%A0%204.4%20%E6%B5%81%E9%87%8F%E6%8E%A7%E5%88%B6%E7%9A%84%E6%9C%AC%E8%B4%A8%EF%BC%9A%E6%8F%90%E9%AB%98%E6%95%88%E7%8E%87\">\u00a0 4.4 \u6d41\u91cf\u63a7\u5236\u7684\u672c\u8d28&#xff1a;\u63d0\u9ad8\u6548\u7387<\/h3>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155047-6aaeaf57a5adf.png\" \/><\/p>\n<h3 id=\"%C2%A0%204.5%20%E7%AA%97%E5%8F%A3%E6%8E%A2%E6%B5%8B%E6%9C%BA%E5%88%B6%EF%BC%88%E9%9B%B6%E7%AA%97%E5%8F%A3%E6%AD%BB%E9%94%81%E8%A7%84%E9%81%BF%EF%BC%89\">\u00a0 4.5 \u7a97\u53e3\u63a2\u6d4b\u673a\u5236&#xff08;\u96f6\u7a97\u53e3\u6b7b\u9501\u89c4\u907f&#xff09;<\/h3>\n<p>\u00a0 \u00a0 \u00a0 \u5f53\u63a5\u6536\u65b9\u7a97\u53e3\u7b49\u4e8e 0&#xff0c;\u53d1\u9001\u65b9\u505c\u6b62\u53d1\u9001\u4e1a\u52a1\u6570\u636e\u3002 \u8fd9\u91cc\u5b58\u5728\u4e00\u4e2a\u98ce\u9669&#xff1a;\u63a5\u6536\u65b9\u540e\u7eed\u7a97\u53e3\u66f4\u65b0\u7684 ACK \u62a5\u6587&#xff0c;\u5982\u679c\u5728\u7f51\u7edc\u4f20\u8f93\u4e2d\u4e22\u5931&#xff0c;\u53d1\u9001\u65b9\u4f1a\u4e00\u76f4\u963b\u585e\u7b49\u5f85&#xff0c;\u53cc\u65b9\u9677\u5165\u6b7b\u9501\u3002 \u00a0 \u00a0 \u00a0\u00a0TCP \u5f15\u5165\u7a97\u53e3\u63a2\u6d4b\u673a\u5236\u89e3\u51b3\u8be5\u95ee\u9898&#xff1a; \u53d1\u9001\u65b9\u6536\u5230\u7a97\u53e3\u4e3a 0 \u7684 ACK \u540e&#xff0c;\u4f1a\u5468\u671f\u6027\u53d1\u9001\u4ec5\u643a\u5e26 1 \u5b57\u8282\u6570\u636e\u7684\u7a97\u53e3\u63a2\u6d4b\u62a5\u6587&#xff0c;\u7528\u6765\u8be2\u95ee\u63a5\u6536\u65b9\u5f53\u524d\u6700\u65b0\u7a97\u53e3\u5927\u5c0f\u3002<\/p>\n<ul>\n<li>\u5982\u679c\u63a5\u6536\u65b9\u7a97\u53e3\u5df2\u7ecf\u6062\u590d&#xff0c;\u8fd4\u56de\u643a\u5e26\u65b0\u7a97\u53e3\u503c\u7684 ACK&#xff0c;\u53d1\u9001\u65b9\u6062\u590d\u6570\u636e\u4f20\u8f93&#xff1b;<\/li>\n<li>\u5982\u679c\u7a97\u53e3\u4f9d\u65e7\u4e3a 0&#xff0c;\u63a5\u6536\u65b9\u56de\u590d\u7a97\u53e3 0&#xff0c;\u53d1\u9001\u65b9\u7ee7\u7eed\u7b49\u5f85&#xff0c;\u4e0b\u4e00\u6b21\u5468\u671f\u518d\u63a2\u6d4b\u3002<\/li>\n<\/ul>\n<p><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155048-6aaeaf581c5d2.png\" \/> <img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155048-6aaeaf587e1be.png\" \/><\/p>\n<h4 id=\"%C2%A0%20%C2%A0%204.5.1%20%E7%AA%97%E5%8F%A3%E6%8E%A2%E6%B5%8B%E8%A7%86%E8%A7%92%EF%BC%9A%E7%90%86%E8%A7%A3TCP%E9%9D%A2%E5%90%91%E5%AD%97%E8%8A%82%E6%B5%81\">\u00a0 \u00a0 4.5.1 \u7a97\u53e3\u63a2\u6d4b\u89c6\u89d2&#xff1a;\u7406\u89e3TCP\u9762\u5411\u5b57\u8282\u6d41<\/h4>\n<p style=\"text-align:center\"><img decoding=\"async\" alt=\"\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260919155052-6aaeaf5c52f82.png\" \/><\/p>\n<h3 id=\"%C2%A0%204.6%C2%A0%E6%A0%B8%E5%BF%83%E6%80%BB%E7%BB%93\">\u00a0 4.6\u00a0\u6838\u5fc3\u603b\u7ed3<\/h3>\n<li>\u6d41\u91cf\u63a7\u5236\u89e3\u51b3\u53d1\u9001\u65b9\u548c\u63a5\u6536\u65b9\u4e3b\u673a\u5904\u7406\u80fd\u529b\u4e0d\u5339\u914d\u7684\u95ee\u9898&#xff0c;\u548c\u7f51\u7edc\u62e5\u585e\u4e0d\u662f\u4e00\u56de\u4e8b&#xff08;\u62e5\u585e\u63a7\u5236\u540e\u7eed\u8bb2\u89e3&#xff09;&#xff1b;<\/li>\n<li>16 \u4f4d\u7a97\u53e3\u5927\u5c0f\u7531\u63a5\u6536\u65b9\u586b\u5145&#xff0c;\u53cd\u6620\u63a5\u6536\u7f13\u51b2\u533a\u5269\u4f59\u7a7a\u95f4&#xff0c;\u7528\u4e8e\u544a\u77e5\u53d1\u9001\u65b9\u63a5\u6536\u4e0a\u9650&#xff1b;<\/li>\n<li>\u7a97\u53e3\u4e3a 0 \u65f6\u53d1\u9001\u65b9\u6682\u505c\u53d1\u9001&#xff0c;\u4f9d\u9760\u7a97\u53e3\u63a2\u6d4b\u62a5\u6587&#xff0c;\u9632\u6b62\u7a97\u53e3\u66f4\u65b0\u62a5\u6587\u4e22\u5931\u5e26\u6765\u7684\u6b7b\u9501\u95ee\u9898&#xff1b;<\/li>\n<li>\u6d41\u91cf\u63a7\u5236\u5168\u7a0b\u52a8\u6001\u4ea4\u4e92&#xff0c;\u8ba9\u53d1\u9001\u901f\u7387\u8ddf\u968f\u63a5\u6536\u65b9\u5904\u7406\u80fd\u529b\u81ea\u9002\u5e94\u53d8\u5316&#xff0c;\u51cf\u5c11\u4e22\u5305\u4e0e\u4e0d\u5fc5\u8981\u7684\u91cd\u4f20\u3002<\/li>\n<h2 id=\"%E7%BB%93%E6%9D%9F%E8%AF%AD\">\u7ed3\u675f\u8bed<\/h2>\n<p>\u00a0 \u00a0 \u00a0 \u56de\u987e\u672c\u7bc7&#xff0c;\u6211\u4eec\u627f\u63a5\u4e0a\u4e00\u7bc7\u6587\u7ae0\u5bf9\u786e\u8ba4\u5e94\u7b54\u4e0e\u8d85\u65f6\u91cd\u4f20\u7684\u8bb2\u89e3&#xff0c;\u628a\u89c6\u89d2\u4ece &#034;\u6570\u636e\u600e\u4e48\u4fdd\u8bc1\u9001\u8fbe&#034; \u63a8\u8fdb\u5230 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