{"id":1962,"date":"2026-06-06T15:32:24","date_gmt":"2026-06-06T07:32:24","guid":{"rendered":"https:\/\/www.52runoob.com\/?p=1962"},"modified":"2026-06-06T15:32:28","modified_gmt":"2026-06-06T07:32:28","slug":"%e3%80%90linux%e7%bd%91%e7%bb%9c%e3%80%91linux-%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%ef%bc%9a%e4%bc%a0%e8%be%93%e5%b1%82tcp%ef%bc%88%e4%ba%8c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.52runoob.com\/index.php\/2026\/06\/06\/%e3%80%90linux%e7%bd%91%e7%bb%9c%e3%80%91linux-%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b%ef%bc%9a%e4%bc%a0%e8%be%93%e5%b1%82tcp%ef%bc%88%e4%ba%8c%ef%bc%89\/","title":{"rendered":"\u3010Linux\u7f51\u7edc\u3011Linux \u7f51\u7edc\u7f16\u7a0b\uff1a\u4f20\u8f93\u5c42TCP\uff08\u4e8c\uff09"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Linux \u7f51\u7edc\u7f16\u7a0b\uff1a\u4f20\u8f93\u5c42 TCP\uff08\u4e8c\uff09\u2014\u2014 TCP \u53ef\u9760\u4f20\u8f93\u673a\u5236\u8be6\u89e3<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e0a\u4e00\u7bc7\u300aLinux \u7f51\u7edc\u7f16\u7a0b\uff1a\u4f20\u8f93\u5c42 TCP\uff08\u4e00\uff09\u300b\u4e2d\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86 TCP \u7684\u57fa\u672c\u6982\u5ff5\u3001\u4e09\u6b21\u63e1\u624b\u4e0e\u56db\u6b21\u6325\u624b\u3002\u672c\u7bc7\u5c06\u6df1\u5165\u8bb2\u89e3 TCP \u7684\u6838\u5fc3\u2014\u2014<strong>\u53ef\u9760\u4f20\u8f93\u673a\u5236<\/strong>\uff0c\u5305\u62ec\u786e\u8ba4\u5e94\u7b54\u3001\u5e8f\u5217\u53f7\u3001\u91cd\u4f20\u673a\u5236\u3001\u6ed1\u52a8\u7a97\u53e3\u3001\u6d41\u91cf\u63a7\u5236\u548c\u62e5\u585e\u63a7\u5236\u7b49\u5185\u5bb9\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e00\u3001TCP \u4e3a\u4ec0\u4e48\u53ef\u9760\uff1f<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">TCP\uff08Transmission Control Protocol\uff09\u662f\u9762\u5411\u8fde\u63a5\u3001\u53ef\u9760\u4f20\u8f93\u7684\u534f\u8bae\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u76f8\u6bd4 UDP\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u6027<\/th><th>TCP<\/th><th>UDP<\/th><\/tr><\/thead><tbody><tr><td>\u662f\u5426\u8fde\u63a5<\/td><td>\u662f<\/td><td>\u5426<\/td><\/tr><tr><td>\u662f\u5426\u53ef\u9760<\/td><td>\u662f<\/td><td>\u5426<\/td><\/tr><tr><td>\u6570\u636e\u987a\u5e8f<\/td><td>\u4fdd\u8bc1<\/td><td>\u4e0d\u4fdd\u8bc1<\/td><\/tr><tr><td>\u6d41\u91cf\u63a7\u5236<\/td><td>\u652f\u6301<\/td><td>\u4e0d\u652f\u6301<\/td><\/tr><tr><td>\u62e5\u585e\u63a7\u5236<\/td><td>\u652f\u6301<\/td><td>\u4e0d\u652f\u6301<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \u80fd\u591f\u4fdd\u8bc1\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u4e0d\u4e22\u5931<\/li>\n\n\n\n<li>\u6570\u636e\u4e0d\u91cd\u590d<\/li>\n\n\n\n<li>\u6570\u636e\u6309\u987a\u5e8f\u5230\u8fbe<\/li>\n\n\n\n<li>\u6570\u636e\u5b8c\u6574\u6027\u9a8c\u8bc1<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e8c\u3001\u5e8f\u5217\u53f7\uff08Sequence Number\uff09<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \u53d1\u9001\u6570\u636e\u65f6\uff0c\u4f1a\u7ed9\u6bcf\u4e2a\u5b57\u8282\u7f16\u53f7\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u5ba2\u6237\u7aef\u53d1\u9001\uff1a\n\nHello TCP\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8f6c\u6362\u4e3a\u5b57\u8282\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nH e l l o   T C P\n1 2 3 4 5 6 7 8 9\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">TCP \u4f1a\u7ef4\u62a4\u4e00\u4e2a\u5e8f\u5217\u53f7\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nSeq = 1000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nSeq=1000\nLength=9\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1000~1008\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e9b\u5b57\u8282\u7684\u6570\u636e\u5df2\u7ecf\u53d1\u9001\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e8f\u5217\u53f7\u4f5c\u7528<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7528\u4e8e\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. \u6570\u636e\u6392\u5e8f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u53051 Seq=1000\n\u53052 Seq=2000\n\u53053 Seq=3000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u7f51\u7edc\u4e2d\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u53052\u5148\u5230\n\u53051\u540e\u5230\n\u53053\u6700\u540e\u5230\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">TCP \u6839\u636e\u5e8f\u5217\u53f7\u91cd\u65b0\u6392\u5e8f\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1000\n2000\n3000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5e94\u7528\u5c42\u770b\u5230\u7684\u6570\u636e\u4ecd\u7136\u6b63\u786e\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. \u68c0\u6d4b\u4e22\u5305<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1000\n2000\n4000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u73b0\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n3000 \u4e22\u5931\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">TCP \u81ea\u52a8\u8bf7\u6c42\u91cd\u4f20\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e09\u3001\u786e\u8ba4\u5e94\u7b54\u673a\u5236\uff08ACK\uff09<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \u6bcf\u6536\u5230\u6570\u636e\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u90fd\u4f1a\u53d1\u9001\u786e\u8ba4\u62a5\u6587\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u5ba2\u6237\u7aef \u2192 \u670d\u52a1\u7aef\n\nSeq=1000\nLength=100\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u670d\u52a1\u7aef\u6536\u5230\u540e\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nACK=1100\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1000~1099\n\u5df2\u7ecf\u6536\u5230\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u4e00\u6b21\u8bf7\u4ece\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1100\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5f00\u59cb\u53d1\u9001\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">ACK \u7684\u610f\u4e49<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u786e\u8ba4\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u6211\u5df2\u7ecf\u6536\u5230\u4f60\u53d1\u9001\u7684\u6570\u636e\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u907f\u514d\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u53d1\u9001\u65b9\u4e0d\u77e5\u9053\u6570\u636e\u662f\u5426\u6210\u529f\u5230\u8fbe\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u56db\u3001\u8d85\u65f6\u91cd\u4f20\u673a\u5236<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u53d1\u9001\u65b9\u8fdf\u8fdf\u6536\u4e0d\u5230 ACK\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nSeq=1000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u540e\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nACK\u672a\u8fd4\u56de\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">TCP \u8ba4\u4e3a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u6570\u636e\u4e22\u5931\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4e8e\u662f\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u91cd\u65b0\u53d1\u9001\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u5c31\u662f\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nRetransmission\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u4f20\u673a\u5236\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u8d85\u65f6\u65f6\u95f4\uff08RTO\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \u4e0d\u4f1a\u7acb\u523b\u91cd\u4f20\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u800c\u662f\u7b49\u5f85\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nRTO\nRetransmission Timeout\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n200ms\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8d85\u8fc7\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n200ms\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8fd8\u6ca1 ACK\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u91cd\u4f20\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u52a8\u6001\u8c03\u6574<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7f51\u7edc\u5feb\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nRTO\u53d8\u5c0f\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u7f51\u7edc\u6162\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nRTO\u53d8\u5927\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">Linux \u5185\u6838\u81ea\u52a8\u8ba1\u7b97\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nRTT\nRound Trip Time\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u52a8\u6001\u8c03\u6574\u8d85\u65f6\u65f6\u95f4\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e94\u3001\u5feb\u901f\u91cd\u4f20\uff08Fast Retransmit\uff09<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f20\u7edf\u91cd\u4f20\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u7b49\u8d85\u65f6\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6548\u7387\u8f83\u4f4e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \u589e\u52a0\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u5feb\u901f\u91cd\u4f20\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1000\n2000\n3000\n4000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2d\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n2000\u4e22\u5931\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6536\u5230\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1000\n3000\n4000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u6536\u65b9\u6301\u7eed\u53d1\u9001\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nACK=2000\nACK=2000\nACK=2000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8fde\u7eed\u4e09\u4e2a\u91cd\u590d ACK\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nDuplicate ACK\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u65b9\u7acb\u5373\u5224\u65ad\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n2000\u4e22\u5931\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u65e0\u9700\u7b49\u5f85\u8d85\u65f6\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u76f4\u63a5\u91cd\u4f20\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u63d0\u9ad8\u6548\u7387\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u516d\u3001\u6ed1\u52a8\u7a97\u53e3\u673a\u5236\uff08Sliding Window\uff09<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u53d1\u4e00\u4e2a\u5305\n\u7b49ACK\n\u518d\u53d1\u4e00\u4e2a\u5305\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6548\u7387\u6781\u4f4e\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \u5f15\u5165\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u6ed1\u52a8\u7a97\u53e3\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5de5\u4f5c\u539f\u7406<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\u7a97\u53e3\u5927\u5c0f\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n5000\u5b57\u8282\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u65b9\u53ef\u8fde\u7eed\u53d1\u9001\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1000\n2000\n3000\n4000\n5000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u65e0\u9700\u7b49\u5f85 ACK\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u6536\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nACK=3000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u524d3000\u5b57\u8282\u6536\u5230\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u7a97\u53e3\u5411\u524d\u6ed1\u52a8\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n3001~8000\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u7ee7\u7eed\u53d1\u9001\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7a97\u53e3\u793a\u610f\u56fe<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u5df2\u786e\u8ba4 | \u5df2\u53d1\u9001\u672a\u786e\u8ba4 | \u53ef\u53d1\u9001 | \u4e0d\u53ef\u53d1\u9001\n\n--------|-----------|------|-------\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u968f\u7740 ACK \u5230\u6765\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u7a97\u53e3\u4e0d\u65ad\u5411\u524d\u79fb\u52a8\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\u79f0\u4e3a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nSliding Window\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e03\u3001\u6d41\u91cf\u63a7\u5236\uff08Flow Control\uff09<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u95ee\u9898\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u65b9\u901f\u5ea6\u5feb\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u6536\u65b9\u901f\u5ea6\u6162\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u53d1\u9001\uff1a\n100MB\/s\n\n\u63a5\u6536\uff1a\n10MB\/s\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u6536\u7f13\u51b2\u533a\u5f88\u5feb\u6ee1\u4e86\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">TCP \u89e3\u51b3\u65b9\u6848<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u6536\u65b9\u544a\u8bc9\u53d1\u9001\u65b9\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nWindow = 4096\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u8fd8\u80fd\u63a5\u65364096\u5b57\u8282\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u65b9\u6700\u591a\u53d1\u9001\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n4096\u5b57\u8282\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u7f13\u51b2\u533a\u6ee1<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u6536\u65b9\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nWindow = 0\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u522b\u53d1\u4e86\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u65b9\u6682\u505c\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u7f13\u51b2\u533a\u6062\u590d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u6536\u65b9\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nWindow = 2048\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u53d1\u9001\u65b9\u7ee7\u7eed\u53d1\u9001\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u516b\u3001\u62e5\u585e\u63a7\u5236\uff08Congestion Control\uff09<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d41\u91cf\u63a7\u5236\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u9632\u6b62\u63a5\u6536\u65b9\u5d29\u6e83\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u62e5\u585e\u63a7\u5236\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u9632\u6b62\u7f51\u7edc\u5d29\u6e83\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7f51\u7edc\u62e5\u585e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n100\u53f0\u4e3b\u673a\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u540c\u65f6\u53d1\u9001\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n10Gbps\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4ea4\u6362\u673a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u53ea\u67091Gbps\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u7ed3\u679c\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u5927\u91cf\u4e22\u5305\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u7f51\u7edc\u62e5\u585e\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u4e5d\u3001\u6162\u542f\u52a8\uff08Slow Start\uff09<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \u4e0d\u77e5\u9053\u7f51\u7edc\u80fd\u529b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f00\u59cb\u65f6\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u5c0f\u6d41\u91cf\u53d1\u9001\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u62e5\u585e\u7a97\u53e3\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\ncwnd = 1 MSS\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1460\u5b57\u8282\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">\u6bcf\u6536\u5230 ACK\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7a97\u53e3\u7ffb\u500d\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n1\n2\n4\n8\n16\n32\n64\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6307\u6570\u589e\u957f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u793a\u610f\u56fe<\/h2>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u65f6\u95f4 \u2192\n\n1\n2\n4\n8\n16\n32\n64\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5feb\u901f\u63a2\u6d4b\u7f51\u7edc\u5e26\u5bbd\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u5341\u3001\u62e5\u585e\u907f\u514d\uff08Congestion Avoidance\uff09<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fbe\u5230\u9608\u503c\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nssthresh\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u540e\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u518d\u6307\u6570\u589e\u957f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6539\u4e3a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u7ebf\u6027\u589e\u957f\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u5982\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n64\n65\n66\n67\n68\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u907f\u514d\u7f51\u7edc\u7a81\u7136\u62e5\u585e\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u5341\u4e00\u3001TCP \u62e5\u585e\u63a7\u5236\u8fc7\u7a0b<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b8c\u6574\u6d41\u7a0b\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u6162\u542f\u52a8\n   \u2193\n\u8fbe\u5230\u9608\u503c\n   \u2193\n\u62e5\u585e\u907f\u514d\n   \u2193\n\u53d1\u73b0\u4e22\u5305\n   \u2193\n\u5feb\u901f\u91cd\u4f20\n   \u2193\n\u5feb\u901f\u6062\u590d\n   \u2193\n\u7ee7\u7eed\u62e5\u585e\u907f\u514d\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u73b0\u4ee3 Linux \u9ed8\u8ba4\u4f7f\u7528\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CUBIC<\/li>\n\n\n\n<li>BBR<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f5c\u4e3a\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u5341\u4e8c\u3001TCP \u53d1\u9001\u4e0e\u63a5\u6536\u7f13\u51b2\u533a<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Linux Socket \u5185\u90e8\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u5e94\u7528\u7a0b\u5e8f\n    \u2193\n\u53d1\u9001\u7f13\u51b2\u533a\n    \u2193\nTCP\n    \u2193\n\u7f51\u7edc\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u63a5\u6536\u7aef\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u7f51\u7edc\n    \u2193\nTCP\n    \u2193\n\u63a5\u6536\u7f13\u51b2\u533a\n    \u2193\n\u5e94\u7528\u7a0b\u5e8f\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u770b\u7f13\u51b2\u533a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nsysctl -a | grep tcp\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6216\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\ncat \/proc\/sys\/net\/ipv4\/tcp_rmem\ncat \/proc\/sys\/net\/ipv4\/tcp_wmem\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n4096 87380 6291456\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u6700\u5c0f\u503c\n\u9ed8\u8ba4\u503c\n\u6700\u5927\u503c\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u5341\u4e09\u3001Linux \u4e2d TCP \u72b6\u6001\u67e5\u770b<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u770b\u8fde\u63a5\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nss -ant\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u6216\u8005\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nnetstat -ant\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u7ed3\u679c\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nESTAB\nLISTEN\nTIME_WAIT\nCLOSE_WAIT\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">\u67e5\u770b TCP \u7edf\u8ba1\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nss -s\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u8f93\u51fa\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nTCP:\nestab 15\nclosed 200\ntimewait 20\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u5341\u56db\u3001\u9762\u8bd5\u9ad8\u9891\u95ee\u9898<\/h1>\n\n\n\n<h3 class=\"wp-block-heading\">TCP \u4e3a\u4ec0\u4e48\u53ef\u9760\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b54\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5e8f\u5217\u53f7\u673a\u5236<\/li>\n\n\n\n<li>ACK\u786e\u8ba4\u673a\u5236<\/li>\n\n\n\n<li>\u8d85\u65f6\u91cd\u4f20<\/li>\n\n\n\n<li>\u5feb\u901f\u91cd\u4f20<\/li>\n\n\n\n<li>\u6ed1\u52a8\u7a97\u53e3<\/li>\n\n\n\n<li>\u6d41\u91cf\u63a7\u5236<\/li>\n\n\n\n<li>\u62e5\u585e\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\">TCP \u4e3a\u4ec0\u4e48\u6bd4 UDP \u6162\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u4e3a TCP \u9700\u8981\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5efa\u7acb\u8fde\u63a5<\/li>\n\n\n\n<li>\u7ef4\u62a4\u72b6\u6001<\/li>\n\n\n\n<li>ACK\u786e\u8ba4<\/li>\n\n\n\n<li>\u91cd\u4f20\u673a\u5236<\/li>\n\n\n\n<li>\u62e5\u585e\u63a7\u5236<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u989d\u5916\u5f00\u9500\u8f83\u5927\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u6ed1\u52a8\u7a97\u53e3\u6709\u4ec0\u4e48\u4f5c\u7528\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u63d0\u9ad8\u541e\u5410\u91cf\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5141\u8bb8\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u8fde\u7eed\u53d1\u9001\u591a\u4e2a\u6570\u636e\u5305\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u800c\u4e0d\u5fc5\u7b49\u5f85\u6bcf\u4e2a ACK\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u6d41\u91cf\u63a7\u5236\u4e0e\u62e5\u585e\u63a7\u5236\u533a\u522b\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d41\u91cf\u63a7\u5236\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u53d1\u9001\u65b9 \u2194 \u63a5\u6536\u65b9\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5173\u6ce8\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u63a5\u6536\u80fd\u529b\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u62e5\u585e\u63a7\u5236\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u53d1\u9001\u65b9 \u2194 \u7f51\u7edc\n\n<\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u5173\u6ce8\uff1a<\/p>\n\n\n<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\n\u7f51\u7edc\u627f\u8f7d\u80fd\u529b\n\n<\/pre><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u603b\u7ed3<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">TCP \u4e4b\u6240\u4ee5\u80fd\u591f\u6210\u4e3a\u4e92\u8054\u7f51\u6700\u91cd\u8981\u7684\u4f20\u8f93\u534f\u8bae\uff0c\u6838\u5fc3\u539f\u56e0\u5728\u4e8e\u5176\u5b8c\u5584\u7684\u53ef\u9760\u4f20\u8f93\u673a\u5236\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u5e8f\u5217\u53f7\u4fdd\u8bc1\u6570\u636e\u6709\u5e8f\u3002<\/li>\n\n\n\n<li>ACK \u4fdd\u8bc1\u6570\u636e\u5df2\u6536\u5230\u3002<\/li>\n\n\n\n<li>\u8d85\u65f6\u91cd\u4f20\u89e3\u51b3\u4e22\u5305\u95ee\u9898\u3002<\/li>\n\n\n\n<li>\u5feb\u901f\u91cd\u4f20\u51cf\u5c11\u7b49\u5f85\u65f6\u95f4\u3002<\/li>\n\n\n\n<li>\u6ed1\u52a8\u7a97\u53e3\u63d0\u9ad8\u4f20\u8f93\u6548\u7387\u3002<\/li>\n\n\n\n<li>\u6d41\u91cf\u63a7\u5236\u4fdd\u62a4\u63a5\u6536\u7aef\u3002<\/li>\n\n\n\n<li>\u62e5\u585e\u63a7\u5236\u4fdd\u62a4\u6574\u4e2a\u7f51\u7edc\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u7406\u89e3\u8fd9\u4e9b\u673a\u5236\u540e\uff0c\u518d\u5b66\u4e60 Linux Socket \u7f16\u7a0b\u4e2d\u7684 <code>send()<\/code>\u3001<code>recv()<\/code>\u3001<code>epoll()<\/code>\u3001\u9ad8\u5e76\u53d1\u670d\u52a1\u5668\u8bbe\u8ba1\u65f6\uff0c\u4f1a\u66f4\u5bb9\u6613\u7406\u89e3 TCP \u5728\u5185\u6838\u4e2d\u7684\u5de5\u4f5c\u539f\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Linux \u7f51\u7edc\u7f16\u7a0b\uff1a\u4f20\u8f93\u5c42 TCP\uff08\u4e8c\uff09\u2014\u2014 TCP \u53ef\u9760\u4f20\u8f93\u673a\u5236\u8be6\u89e3 \u5728\u4e0a\u4e00&#8230; 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