{"id":34355,"date":"2026-07-20T15:40:48","date_gmt":"2026-07-20T07:40:48","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/how-to-modify-tcp-congestion-control-algorithms-on-hk-server\/"},"modified":"2026-07-20T15:43:06","modified_gmt":"2026-07-20T07:43:06","slug":"how-to-modify-tcp-congestion-control-algorithms-on-hk-server","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/knowledge-tc\/how-to-modify-tcp-congestion-control-algorithms-on-hk-server\/","title":{"rendered":"\u5982\u4f55\u5728\u9999\u6e2f\u4f3a\u670d\u5668\u4e0a\u4fee\u6539 TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5"},"content":{"rendered":"<style>\n    table, th, td {\n        border: 1px solid black;\n        border-collapse: collapse;\n    }\n<\/style>\n<p>\u4f60\u53ef\u4ee5\u900f\u904e\u4fee\u6539\u9999\u6e2f<a target=\"_blank\" href=\"https:\/\/www.varidata.com\/zh-tw\/blog-tc\/optimize-a-website-to-prevent-tcp-packet-loss-on-us-servers\/\">TCP \u64c1\u585e<\/a>\u63a7\u5236\u6f14\u7b97\u6cd5\u4f86\u63d0\u5347<a target=\"_blank\" href=\"https:\/\/www.varidata.com\/zh-tw\/server\/hk\/cn2\/\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a>\u7684\u7db2\u8def\u6548\u80fd\u3002\u9078\u64c7\u5408\u9069\u7684\u6f14\u7b97\u6cd5\u6709\u52a9\u65bc\u56e0\u61c9\u7368\u7279\u7684\u7db2\u8def\u689d\u4ef6\uff0c\u4f8b\u5982\u983b\u7e41\u5207\u63db\u8207\u5ef6\u9072\u8b8a\u5316\u3002\u6700\u65b0\u7814\u7a76\u986f\u793a\uff0c\u4e0d\u540c\u6f14\u7b97\u6cd5\u6703\u5e36\u4f86\u4e0d\u540c\u5f71\u97ff\uff1a<\/p>\n<div fullwidth=\"\" class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 75px;\">\n<colgroup>\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\"><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>TCP \u6f14\u7b97\u6cd5<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6548\u80fd\u6307\u6a19<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5c0d\u541e\u5410\u91cf\u8207\u5ef6\u9072\u7684\u5f71\u97ff<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>BBR<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Goodput\uff08\u6709\u6548\u541e\u5410\u91cf\uff09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5728\u908a\u7de3\u4f3a\u670d\u5668\u5834\u666f\u4e2d\u6539\u5584\u6709\u9650<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>CUBIC<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5fa9\u539f\u6642\u9593<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5728\u77ed\u6642\u9593 NLOS\uff08\u975e\u8996\u8ddd\uff09\u968e\u6bb5\u5177\u6709\u5feb\u901f\u5fa9\u539f\u80fd\u529b<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>YeAH<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u91cd\u50b3\u6b21\u6578<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5728\u591a\u6578\u5834\u666f\u4e2d\u512a\u65bc CUBIC<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Vegas<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>RTT<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5728\u89c0\u5bdf\u5230\u7684\u6f14\u7b97\u6cd5\u4e2d\u541e\u5410\u91cf\u6700\u4f4e<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>Westwood\/NewReno<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>RTT<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5c0d LOS\u2013NLOS \u5207\u63db\u4e0d\u592a\u654f\u611f<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u5728\u771f\u5be6\u7db2\u8def\u6e2c\u8a66\u4e2d\uff0c\u8abf\u6574\u7de9\u885d\u5340\u5927\u5c0f\u8207\u903e\u6642\u8a2d\u5b9a\u6703\u6539\u8b8a TCP \u64c1\u585e\u63a7\u5236\u7684\u8868\u73fe\u3002\u4f60\u61c9\u6301\u7e8c\u76e3\u63a7\u4f3a\u670d\u5668\u7684\u541e\u5410\u91cf\u8207\u5ef6\u9072\uff0c\u518d\u8996\u9700\u8981\u8abf\u6574\u6f14\u7b97\u6cd5\u3002\u5c0d\u65bc\u8981\u6c42\u66f4\u9ad8\u7684\u74b0\u5883\uff0c\u53ef\u4ee5\u8003\u616e\u66f4\u9032\u968e\u7684\u65b9\u6848\uff0c\u4f8b\u5982 TCP\u2011DQN\u3002<\/p>\n<h2>\u6838\u5fc3\u91cd\u9ede<\/h2>\n<ul>\n<li>\n<p>\u9078\u64c7\u5408\u9069\u7684 TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u53ef\u4ee5\u63d0\u5347\u7db2\u8def\u6548\u80fd\u3002BBR \u8207 CUBIC \u7b49\u6f14\u7b97\u6cd5\u80fd\u5354\u52a9\u4f60\u61c9\u5c0d\u9999\u6e2f\u5730\u5340\u7279\u6b8a\u7684\u7db2\u8def\u72c0\u6cc1\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u4fee\u6539\u4f3a\u670d\u5668\u7db2\u8def\u8a2d\u5b9a\u4e4b\u524d\uff0c\u4e00\u5b9a\u8981\u5148\u5b8c\u6210\u5099\u4efd\u3002\u9019\u80fd\u4fdd\u8b77\u8cc7\u6599\uff0c\u4e26\u5728\u9700\u8981\u6642\u5feb\u901f\u9084\u539f\u3002<\/p>\n<\/li>\n<li>\n<p>\u8b8a\u66f4\u5f8c\u8981\u6301\u7e8c\u76e3\u63a7\u541e\u5410\u91cf\u8207\u5ef6\u9072\u7b49\u7db2\u8def\u6307\u6a19\u3002\u53ef\u4f7f\u7528 iperf3 \u7b49\u5de5\u5177\u8a55\u4f30 TCP \u8a2d\u5b9a\u7684\u6548\u679c\u3002<\/p>\n<\/li>\n<li>\n<p>\u900f\u904e\u7de8\u8f2f sysctl \u7d44\u614b\u6a94\uff0c\u78ba\u4fdd TCP \u8a2d\u5b9a\u5728\u91cd\u555f\u5f8c\u4ecd\u7136\u751f\u6548\uff0c\u4ee5\u7dad\u6301\u4f3a\u670d\u5668\u7a69\u5b9a\u904b\u4f5c\u3002<\/p>\n<\/li>\n<li>\n<p>\u6301\u7e8c\u95dc\u6ce8\u9999\u6e2f\u672c\u5730\u76f8\u95dc\u6cd5\u898f\u3002\u5728\u7ba1\u7406\u4f3a\u670d\u5668\u8a2d\u5b9a\u6642\uff0c\u9075\u5b88\u8cc7\u6599\u96b1\u79c1\u6cd5\u683c\u5916\u91cd\u8981\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>\u9032\u884c TCP \u64c1\u585e\u63a7\u5236\u8b8a\u66f4\u524d\u7684\u6e96\u5099<\/h2>\n<h3>\u6240\u9700\u5b58\u53d6\u6b0a\u9650\u8207\u5de5\u5177<\/h3>\n<p>\u5728\u4fee\u6539\u4efb\u4f55 TCP \u64c1\u585e\u63a7\u5236\u8a2d\u5b9a\u4e4b\u524d\uff0c\u4f60\u9700\u8981\u5177\u5099\u4f3a\u670d\u5668\u7684 root \u6b0a\u9650\u3002\u591a\u6578\u9999\u6e2f\u4f3a\u670d\u5668\u900f\u904e SSH \u9032\u884c\u9060\u7aef\u7ba1\u7406\u3002\u4f60\u61c9\u5728\u672c\u6a5f\u96fb\u8166\u4e0a\u5b89\u88dd\u7a69\u5b9a\u7684 SSH \u7528\u6236\u7aef\uff0c\u4f8b\u5982 PuTTY \u6216 OpenSSH\uff0c\u4e26\u719f\u6089\u57fa\u672c\u7684\u547d\u4ee4\u5217\u64cd\u4f5c\u3002\u4f60\u6703\u7d93\u5e38\u4f7f\u7528\u6307\u4ee4\u4f86\u6aa2\u67e5\u8207\u4fee\u6539\u7db2\u8def\u8a2d\u5b9a\u3002<\/p>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u9023\u7dda\u81f3\u4f3a\u670d\u5668\u6642\u52d9\u5fc5\u4f7f\u7528\u5b89\u5168\u9023\u7dda\uff0c\u6709\u52a9\u65bc\u4fdd\u8b77\u654f\u611f\u8cc7\u8a0a\u4e26\u9632\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8b8a\u66f4\u3002<\/p>\n<\/blockquote>\n<h3>\u652f\u63f4\u7684\u4f5c\u696d\u7cfb\u7d71<\/h3>\n<p>\u9999\u6e2f\u5730\u5340\u5ee3\u6cdb\u4f7f\u7528 Linux \u4f3a\u670d\u5668\u3002\u9019\u985e\u4f3a\u670d\u5668\u652f\u63f4\u5305\u62ec BBR \u5728\u5167\u7684\u9032\u968e TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u3002BBR \u80fd\u63d0\u5347\u983b\u5bec\u5229\u7528\u7387\u4e26\u6e1b\u5c11\u4f47\u5217\u58c5\u585e\uff0c\u56e0\u6b64\u975e\u5e38\u9069\u5408\u9700\u8981\u9ad8\u983b\u5bec\u8207\u4f4e\u5ef6\u9072\u7684\u61c9\u7528\u3002\u4f60\u53ef\u4ee5\u5728\u73fe\u4ee3 Linux \u767c\u884c\u7248\uff08\u5982 Ubuntu \u8207 CentOS\uff09\u4e2d\u555f\u7528 BBR\u3002\u96d6\u7136 TCP\u2011DQN \u5c1a\u672a\u666e\u53ca\uff0c\u4f46\u5728\u591a\u6578\u7db2\u8def\u74b0\u5883\u4e2d\u4f60\u53ef\u4ee5\u512a\u5148\u5617\u8a66 BBR\u3002<\/p>\n<h3>\u5099\u4efd\u8207\u5b89\u5168\u6b65\u9a5f<\/h3>\n<p>\u5728\u9032\u884c\u4efb\u4f55\u8b8a\u66f4\u524d\uff0c\u5fc5\u9808\u5148\u5099\u4efd\u4f3a\u670d\u5668\u7684\u7db2\u8def\u7d44\u614b\u3002\u9019\u80fd\u4fdd\u8b77\u8cc7\u6599\uff0c\u4e26\u5728\u767c\u751f\u554f\u984c\u6642\u5feb\u901f\u9084\u539f\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u7c21\u55ae\u6307\u4ee4\u5132\u5b58\u76ee\u524d\u7d44\u614b\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre><code>cp \/etc\/sysctl.conf \/etc\/sysctl.conf.backup\r\n<\/code><\/pre>\n<p>\u8abf\u6574 TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u6642\uff0c\u53ef\u80fd\u4f34\u96a8\u5b89\u5168\u98a8\u96aa\u3002\u653b\u64ca\u8005\u53ef\u80fd\u5229\u7528\u9019\u4e9b\u8b8a\u66f4\u767c\u52d5\u4f4e\u901f\u7387\u963b\u65b7\u670d\u52d9\uff08Low\u2011rate DoS\uff09\u653b\u64ca\u3002\u4e0b\u8868\u5217\u51fa\u4e00\u4e9b\u6f5b\u5728\u98a8\u96aa\uff1a<\/p>\n<div fullwidth=\"\" class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px;\">\n<colgroup>\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\"><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u98a8\u96aa<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8aaa\u660e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f4e\u901f\u7387 DoS \u653b\u64ca<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u653b\u64ca\u8005\u64cd\u7e31 TCP \u56de\u994b\u6a5f\u5236\u4ee5\u5e72\u64fe\u670d\u52d9<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u670d\u52d9\u4e0d\u7a69\u5b9a<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u932f\u8aa4\u8a2d\u5b9a\u53ef\u80fd\u5c0e\u81f4\u610f\u5916\u7576\u6a5f<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8cc7\u6599\u907a\u5931<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7d44\u614b\u932f\u8aa4\u53ef\u80fd\u9020\u6210\u5c01\u5305\u907a\u5931<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u52d9\u5fc5\u5148\u5728\u53ef\u63a7\u7684\u6e2c\u8a66\u74b0\u5883\u4e2d\u9a57\u8b49\u8b8a\u66f4\uff0c\u518d\u63a8\u9001\u81f3\u6b63\u5f0f\u4f3a\u670d\u5668\u3002<\/p>\n<\/blockquote>\n<h2>\u4fee\u6539 TCP \u64c1\u585e\u63a7\u5236<\/h2>\n<h3>\u6aa2\u67e5\u76ee\u524d\u4f7f\u7528\u7684\u6f14\u7b97\u6cd5<\/h3>\n<p>\u5728\u9032\u884c\u4fee\u6539\u524d\uff0c\u61c9\u5148\u78ba\u8a8d\u4f3a\u670d\u5668\u7576\u524d\u4f7f\u7528\u7684 TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\uff0c\u4ee5\u4fbf\u638c\u63e1\u8d77\u9ede\u4e26\u907f\u514d\u8aa4\u8a2d\u3002\u5728 Ubuntu \u8207 CentOS \u4e0a\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4e0b\u5217\u6307\u4ee4\uff1a<\/p>\n<ul>\n<li>\n<p>\u57f7\u884c <code>sysctl net.ipv4.tcp_congestion_control<\/code> \u6aa2\u8996\u76ee\u524d\u555f\u7528\u7684\u6f14\u7b97\u6cd5\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u82e5\u8f38\u51fa\u70ba\u300ccubic\u300d\u6216\u300cbbr\u300d\uff0c\u8868\u793a\u4f3a\u670d\u5668\u6b63\u5728\u4f7f\u7528\u6700\u5e38\u898b\u7684\u6f14\u7b97\u6cd5\u4e4b\u4e00\u3002<\/p>\n<\/blockquote>\n<h3>\u5217\u51fa\u53ef\u7528\u6f14\u7b97\u6cd5<\/h3>\n<p>\u90e8\u7f72\u65bc\u9999\u6e2f\u6a5f\u623f\u7684\u73fe\u4ee3 Linux \u767c\u884c\u7248\u901a\u5e38\u652f\u63f4\u591a\u7a2e TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u3002\u4f60\u53ef\u4ee5\u900f\u904e\u4e0b\u5217\u6307\u4ee4\u6aa2\u8996\u6240\u6709\u53ef\u7528\u9078\u9805\uff1a<\/p>\n<ul>\n<li>\n<p><code>cat \/proc\/sys\/net\/ipv4\/tcp_available_congestion_control<\/code><\/p>\n<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u8868\u683c\u986f\u793a\u4e0d\u540c\u6838\u5fc3\u7248\u672c\u7684\u9810\u8a2d\u6f14\u7b97\u6cd5\uff1a<\/p>\n<div fullwidth=\"\" class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px;\">\n<colgroup>\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\"><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6838\u5fc3\u7248\u672c<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u9810\u8a2d\u6f14\u7b97\u6cd5<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>2.6.8<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>BIC<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>2.6.19<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>CUBIC<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Linux \u5141\u8a31\u5728\u7cfb\u7d71\u5c64\u7d1a\u8b8a\u66f4 TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\uff0c\u4e5f\u80fd\u91dd\u5c0d\u55ae\u4e00 socket \u500b\u5225\u5207\u63db\u3002\u9810\u8a2d\u6f14\u7b97\u6cd5\u6703\u5957\u7528\u5230\u6240\u6709\u65b0\u9023\u7dda\uff0c\u9664\u975e\u4f60\u5c0d\u7279\u5b9a\u9023\u7dda\u9032\u884c\u8986\u5beb\u3002<\/p>\n<h3>\u8b8a\u66f4\u6f14\u7b97\u6cd5\uff08Ubuntu \/ CentOS \u6307\u4ee4\uff09<\/h3>\n<p>\u4f60\u53ef\u4ee5\u4f9d\u7167\u4e0b\u5217\u6b65\u9a5f\uff0c\u5728\u4f3a\u670d\u5668\u4e0a\u5207\u63db TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\uff1a<\/p>\n<ol>\n<li>\n<p>\u6aa2\u67e5\u6838\u5fc3\u7248\u672c\uff1a<\/p>\n<pre><code>uname -r\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u5217\u51fa\u53ef\u7528\u6f14\u7b97\u6cd5\uff1a<\/p>\n<pre><code>cat \/proc\/sys\/net\/ipv4\/tcp_available_congestion_control\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u6aa2\u67e5\u76ee\u524d\u6f14\u7b97\u6cd5\uff1a<\/p>\n<pre><code>cat \/proc\/sys\/net\/ipv4\/tcp_congestion_control\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u66f4\u65b0\u7cfb\u7d71\u5957\u4ef6\uff1a<\/p>\n<ul>\n<li>\n<p>\u5c0d\u65bc Ubuntu\uff1a<\/p>\n<pre><code>sudo apt update &amp;&amp; sudo apt upgrade -y\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u5c0d\u65bc CentOS\uff1a<\/p>\n<pre><code>sudo yum update -y\r\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8f09\u5165 BBR \u6a21\u7d44\uff1a<\/p>\n<pre><code>sudo modprobe tcp_bbr\r\n<\/code><\/pre>\n<ul>\n<li>\n<p>\u4f7f\u7528\u4e0b\u5217\u6307\u4ee4\u78ba\u8a8d\uff1a<\/p>\n<pre><code>lsmod | grep bbr\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u8a2d\u5b9a\u70ba\u958b\u6a5f\u81ea\u52d5\u8f09\u5165\uff1a<\/p>\n<pre><code>echo 'tcp_bbr' | sudo tee -a \/etc\/modules-load.d\/modules.conf\r\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8a2d\u5b9a BBR \u7684 sysctl \u53c3\u6578\uff1a<\/p>\n<pre><code>sudo nano \/etc\/sysctl.d\/99-bbr.conf\r\n<\/code><\/pre>\n<ul>\n<li>\n<p>\u52a0\u5165\u985e\u4f3c\u4e0b\u5217\u5167\u5bb9\uff1a<\/p>\n<pre><code>net.core.default_qdisc = fq\r\nnet.ipv4.tcp_congestion_control = bbr\r\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u5957\u7528\u65b0\u7d44\u614b\uff1a<\/p>\n<pre><code>sudo sysctl -p \/etc\/sysctl.d\/99-bbr.conf\r\nsudo sysctl --system\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u78ba\u8a8d BBR \u662f\u5426\u555f\u7528\uff1a<\/p>\n<pre><code>cat \/proc\/sys\/net\/ipv4\/tcp_congestion_control\r\ncat \/proc\/sys\/net\/core\/default_qdisc\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u6e2c\u8a66\u7db2\u8def\u6548\u80fd\uff1a<\/p>\n<pre><code>iperf3\r\n<\/code><\/pre>\n<\/li>\n<\/ol>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u82e5\u6838\u5fc3\u7248\u672c\u4f4e\u65bc 4.9.0\uff0c\u5fc5\u9808\u5148\u5347\u7d1a\u6838\u5fc3\u624d\u80fd\u4f7f\u7528 BBR\u3002\u5c0d\u65bc CentOS\uff0c\u53ef\u4ee5\u900f\u904e ELRepo \u5b89\u88dd\u8f03\u65b0\u7248\u6838\u5fc3\u3002<\/p>\n<\/blockquote>\n<h3>\u8abf\u6574\u6f14\u7b97\u6cd5\u53c3\u6578<\/h3>\n<p>\u4f60\u53ef\u4ee5\u4f9d\u7167\u9999\u6e2f\u5be6\u969b\u7db2\u8def\u74b0\u5883\u5fae\u8abf TCP \u64c1\u585e\u63a7\u5236\u53c3\u6578\uff0c\u4ee5\u53d6\u5f97\u66f4\u4f73\u6548\u80fd\u3002\u81ea\u52d5\u8abf\u6821\u65b9\u6cd5\uff08\u4f8b\u5982\u8c9d\u6c0f\u6700\u4f73\u5316\uff09\u53ef\u5354\u52a9\u4f60\u8abf\u6574\u734e\u52f5\u51fd\u6578\u4fc2\u6578\uff08\u03b1\u3001\u03b2\uff09\uff0c\u6539\u5584\u541e\u5410\u91cf\u8207\u5ef6\u9072\u4e4b\u9593\u7684\u5e73\u8861\u3002\u4f60\u53ef\u4ee5\u900f\u904e\u7de8\u8f2f sysctl \u7d44\u614b\u6a94\uff0c\u70ba\u76ee\u524d\u7db2\u8def\u74b0\u5883\u8a2d\u5b9a\u5408\u9069\u7684\u53c3\u6578\u503c\u3002<\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528 <code>\/etc\/sysctl.d\/99-bbr.conf<\/code> \u6216 <code>\/etc\/sysctl.conf<\/code> \u65b0\u589e\u6216\u8abf\u6574\u53c3\u6578\u3002<\/p>\n<\/li>\n<li>\n<p>\u5617\u8a66\u4e0d\u540c\u6578\u503c\u4e26\u89c0\u5bdf\u6548\u80fd\uff0c\u5f9e\u4e2d\u627e\u51fa\u6700\u4f73\u8a2d\u5b9a\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u5728\u9ad8\u5ef6\u9072\u7db2\u8def\u4e2d\uff0c\u5373\u4f7f\u50c5\u662f\u5fae\u5e45\u8abf\u6574\u7de9\u885d\u5340\u5927\u5c0f\u6216\u903e\u6642\u53c3\u6578\uff0c\u4e5f\u53ef\u80fd\u5e36\u4f86\u660e\u986f\u6548\u679c\u3002<\/p>\n<\/blockquote>\n<h3>\u78ba\u4fdd\u8a2d\u5b9a\u80fd\u6301\u4e45\u751f\u6548<\/h3>\n<p>\u4f60\u5fc5\u9808\u78ba\u4fdd TCP \u64c1\u585e\u63a7\u5236\u8a2d\u5b9a\u5728\u4f3a\u670d\u5668\u91cd\u555f\u5f8c\u4ecd\u7136\u6709\u6548\u3002\u53ef\u4ee5\u900f\u904e\u7de8\u8f2f <code>\/etc\/sysctl.conf<\/code> \u6a94\u6848\u52a0\u5165\u9078\u5b9a\u7684\u6f14\u7b97\u6cd5\uff1a<\/p>\n<pre><code>net.ipv4.tcp_congestion_control = bbr\r\n<\/code><\/pre>\n<p>\u4f60\u4e5f\u53ef\u4ee5\u6aa2\u67e5 <code>\/etc\/init.d\/boot.sysctl<\/code> \u6a94\u6848\uff0c\u4e26\u53c3\u95b1 sysctl \u7684\u8aaa\u660e\u6587\u4ef6\uff08man page\uff09\u4ee5\u53d6\u5f97\u66f4\u591a\u8cc7\u8a0a\u3002\u540c\u6642\uff0c\u53ef\u5728 <code>\/etc\/rc.d\/<\/code> \u76ee\u9304\u4e2d\u5efa\u7acb\u6216\u8abf\u6574\u555f\u52d5\u8173\u672c\uff0c\u78ba\u4fdd\u6bcf\u6b21\u958b\u6a5f\u90fd\u6703\u5957\u7528\u6b63\u78ba\u8a2d\u5b9a\u3002<\/p>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u91cd\u555f\u5f8c\u52d9\u5fc5\u518d\u6b21\u6e2c\u8a66\u7d44\u614b\uff0c\u4ee5\u78ba\u8a8d\u8a2d\u5b9a\u5df2\u9806\u5229\u6301\u4e45\u5316\u3002<\/p>\n<\/blockquote>\n<h3>\u9032\u968e\u9078\u9805\uff1aTCP\u2011DQN \u8207\u5e36\u5916\u56de\u994b<\/h3>\n<p>\u5728\u9ad8\u8981\u6c42\u74b0\u5883\u4e2d\uff0c\u4f60\u53ef\u4ee5\u9032\u4e00\u6b65\u63a2\u7d22 TCP\u2011DQN \u7b49\u9032\u968e TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u3002TCP\u2011DQN \u5229\u7528\u6a5f\u5668\u5b78\u7fd2\u4f86\u56e0\u61c9\u4e0d\u65b7\u8b8a\u5316\u7684\u7db2\u8def\u689d\u4ef6\u3002\u5e36\u5916\u56de\u994b\u6a5f\u5236\uff08\u4f8b\u5982 sum\u2011of\u2011delays \u6f14\u7b97\u6cd5\uff09\u53ef\u5354\u52a9\u7cbe\u6e96\u4f30\u7b97\u93c8\u8def\u7de9\u885d\u5340\u5927\u5c0f\u3002TCP Queue\u2011length\u2011Adaptive\uff08TCP\u2011QA\uff09\u65b9\u6cd5\u5247\u80fd\u660e\u986f\u63d0\u5347\u983b\u5bec\u5229\u7528\u7387\uff0c\u4e26\u5c0d\u5ef6\u9072\u9032\u884c\u88dc\u511f\u3002\u9019\u4e9b\u6280\u8853\u6709\u52a9\u65bc\u5728\u884c\u52d5\u6578\u64da\u7db2\u8def\u4e2d\u7dad\u6301\u7a69\u5b9a\u904b\u4f5c\uff0c\u5c0d\u9999\u6e2f\u4f3a\u670d\u5668\u800c\u8a00\u5c24\u5176\u95dc\u9375\u3002<\/p>\n<div fullwidth=\"\" class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px;\">\n<colgroup>\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\"><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8b49\u64da\u9ede<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8aaa\u660e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u93c8\u8def\u7de9\u885d\u5340\u5927\u5c0f\u7684\u7cbe\u6e96\u4f30\u7b97<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>sum\u2011of\u2011delays \u6f14\u7b97\u6cd5\u80fd\u7cbe\u78ba\u4f30\u7b97\u93c8\u8def\u7de9\u885d\u5340\u5927\u5c0f\uff0c\u5c0d\u65bc\u512a\u5316\u884c\u52d5\u7db2\u8def\u4e2d\u7684 TCP \u6548\u80fd\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u63d0\u5347\u7db2\u8def\u983b\u5bec\u5229\u7528\u7387<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>TCP Queue\u2011length\u2011Adaptive\uff08TCP\u2011QA\uff09\u65b9\u6cd5\u5728\u983b\u5bec\u5229\u7528\u7387\u65b9\u9762\uff0c\u76f8\u8f03\u73fe\u6709 TCP \u8b8a\u9ad4\u5c55\u73fe\u51fa\u986f\u8457\u512a\u52e2\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5ef6\u9072\u88dc\u511f<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u638c\u63e1\u93c8\u8def\u7de9\u885d\u5340\u5927\u5c0f\u5f8c\uff0c\u4e0a\u5c64\u61c9\u7528\u5354\u5b9a\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u88dc\u511f\u5ef6\u9072\uff0c\u78ba\u4fdd\u884c\u52d5\u6578\u64da\u7db2\u8def\u7684\u7a69\u5b9a\u904b\u4f5c\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u9032\u968e\u6f14\u7b97\u6cd5\u901a\u5e38\u9700\u8981\u81ea\u8a02\u6838\u5fc3\u6a21\u7d44\u6216\u984d\u5916\u8edf\u9ad4\u652f\u63f4\u3002\u52d9\u5fc5\u5148\u5728\u5be6\u9a57\u74b0\u5883\u4e2d\u5145\u5206\u6e2c\u8a66\uff0c\u518d\u90e8\u7f72\u5230\u6b63\u5f0f\u4f3a\u670d\u5668\u3002<\/p>\n<\/blockquote>\n<h2>\u9a57\u8b49\u8b8a\u66f4\u4e26\u6392\u9664\u6545\u969c<\/h2>\n<h3>\u78ba\u8a8d\u76ee\u524d\u555f\u7528\u7684\u6f14\u7b97\u6cd5<\/h3>\n<p>\u5b8c\u6210\u8b8a\u66f4\u5f8c\uff0c\u4f60\u9700\u8981\u6aa2\u67e5\u4f3a\u670d\u5668\u662f\u5426\u5df2\u4f7f\u7528\u76ee\u6a19 TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u3002\u53ef\u900f\u904e\u4e0b\u5217\u6307\u4ee4\u6aa2\u8996\u76ee\u524d\u555f\u7528\u7684\u6f14\u7b97\u6cd5\uff1a<\/p>\n<pre><code>cat \/proc\/sys\/net\/ipv4\/tcp_congestion_control\r\n<\/code><\/pre>\n<p>\u5982\u679c\u8f38\u51fa\u70ba\u300cbbr\u300d\u6216\u5176\u4ed6\u6307\u5b9a\u6f14\u7b97\u6cd5\u540d\u7a31\uff0c\u5373\u8868\u793a\u8b8a\u66f4\u6210\u529f\u3002\u540c\u6642\uff0c\u5efa\u8b70\u4e00\u4f75\u6aa2\u67e5\u9810\u8a2d\u4f47\u5217\u898f\u5247\uff1a<\/p>\n<pre><code>cat \/proc\/sys\/net\/core\/default_qdisc\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u6aa2\u67e5\u6709\u52a9\u65bc\u78ba\u8a8d\u4f3a\u670d\u5668\u5df2\u4f9d\u7167\u9810\u671f\u5957\u7528\u7d44\u614b\u3002\u82e5\u8f38\u51fa\u8207\u9810\u671f\u4e0d\u7b26\uff0c\u8acb\u91cd\u65b0\u6aa2\u67e5\u7d44\u614b\u6a94\uff0c\u4e26\u8996\u60c5\u6cc1\u91cd\u65b0\u555f\u52d5\u4f3a\u670d\u5668\u3002<\/p>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u4f3a\u670d\u5668\u91cd\u555f\u5f8c\uff0c\u52d9\u5fc5\u518d\u6b21\u78ba\u8a8d\u555f\u7528\u7684\u6f14\u7b97\u6cd5\u3002\u4e00\u65e6\u8a2d\u5b9a\u672a\u6b63\u78ba\u5132\u5b58\uff0c\u53ef\u80fd\u5728\u91cd\u555f\u6642\u88ab\u9084\u539f\u3002<\/p>\n<\/blockquote>\n<h3>\u76e3\u63a7\u7db2\u8def\u6307\u6a19<\/h3>\n<p>\u70ba\u4e86\u8a55\u4f30 TCP \u64c1\u585e\u63a7\u5236\u8b8a\u66f4\u662f\u5426\u6709\u6548\uff0c\u4f60\u5fc5\u9808\u6301\u7e8c\u76e3\u63a7\u76f8\u95dc\u7db2\u8def\u6307\u6a19\u3002\u9019\u4e9b\u6307\u6a19\u80fd\u53cd\u6620\u4f3a\u670d\u5668\u8655\u7406\u6d41\u91cf\u8207\u64c1\u585e\u7684\u80fd\u529b\u3002\u95dc\u9375\u6307\u6a19\u5305\u62ec\u6d41\u7a0b\u5b8c\u6210\u6642\u9593\u3001\u66ab\u505c\u8a0a\u6846\u4ee5\u53ca\u541e\u5410\u91cf\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 iperf3\u3001netstat \u6216\u81ea\u884c\u64b0\u5beb\u8173\u672c\u8490\u96c6\u9019\u4e9b\u8cc7\u6599\u3002<\/p>\n<div fullwidth=\"\" class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px;\">\n<colgroup>\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\"><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6307\u6a19<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8aaa\u660e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6d41\u7a0b\u5b8c\u6210\u6642\u9593\uff08FCT\uff09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8868\u793a\u5b8c\u6210\u4e00\u500b\u8cc7\u6599\u6d41\u7a0b\u6240\u9700\u7684\u6642\u9593\uff0c\u662f\u8a55\u4f30\u64c1\u585e\u63a7\u5236\u6548\u679c\u7684\u91cd\u8981\u4f9d\u64da\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u66ab\u505c\u8a0a\u6846\uff08Pause Frames\uff09<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u8861\u91cf\u66ab\u505c\u8a0a\u6846\u51fa\u73fe\u7684\u983b\u7387\uff0c\u53ef\u7528\u4f86\u5224\u65b7\u7db2\u8def\u64c1\u585e\u7a0b\u5ea6\u3002<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u541e\u5410\u91cf<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4ee3\u8868\u5728\u7db2\u8def\u4e2d\u6210\u529f\u50b3\u8f38\u7684\u8cc7\u6599\u91cf\uff0c\u7528\u4ee5\u8861\u91cf\u50b3\u8f38\u6548\u7387\u3002<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u4f60\u61c9\u5b9a\u671f\u8ffd\u8e64\u9019\u4e9b\u6307\u6a19\u3002\u82e5\u6d41\u7a0b\u5b8c\u6210\u6642\u9593\u504f\u9577\u6216\u66ab\u505c\u8a0a\u6846\u983b\u7387\u904e\u9ad8\uff0c\u53ef\u80fd\u4ee3\u8868\u5b58\u5728\u64c1\u585e\u6216\u7d44\u614b\u4e0d\u7576\u3002\u7a69\u5b9a\u4e14\u826f\u597d\u7684\u541e\u5410\u91cf\u5247\u8868\u793a\u4f3a\u670d\u5668\u80fd\u6709\u6548\u7387\u5730\u50b3\u9001\u8cc7\u6599\u3002<\/p>\n<h3>\u5e38\u898b\u554f\u984c\u8207\u5c0d\u7b56<\/h3>\n<p>\u5728\u8b8a\u66f4 TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u7684\u904e\u7a0b\u4e2d\uff0c\u4f60\u53ef\u80fd\u9047\u5230\u5404\u7a2e\u554f\u984c\u3002\u6709\u6642\u6f14\u7b97\u6cd5\u7121\u6cd5\u6210\u529f\u555f\u7528\uff0c\u5e38\u898b\u539f\u56e0\u5305\u62ec\u6838\u5fc3\u7248\u672c\u904e\u820a\u6216\u7f3a\u5c11\u76f8\u95dc\u6a21\u7d44\u3002\u6b64\u6642\u53ef\u900f\u904e\u5347\u7d1a\u6838\u5fc3\u4e26\u8f09\u5165\u6b63\u78ba\u6a21\u7d44\u52a0\u4ee5\u8655\u7406\u3002\u82e5\u89c0\u5bdf\u5230\u7db2\u8def\u6548\u80fd\u4e0d\u7a69\u5b9a\uff0c\u8acb\u6aa2\u67e5\u7de9\u885d\u5340\u5927\u5c0f\u8207\u903e\u6642\u8a2d\u5b9a\uff1b\u932f\u8aa4\u53c3\u6578\u53ef\u80fd\u5c0e\u81f4\u5c01\u5305\u907a\u5931\u6216\u670d\u52d9\u4e0d\u7a69\u3002<\/p>\n<ul>\n<li>\n<p>\u82e5\u91cd\u555f\u5f8c\u8a2d\u5b9a\u672a\u80fd\u4fdd\u7559\uff0c\u8acb\u91cd\u65b0\u7de8\u8f2f sysctl \u7d44\u614b\u6a94\u4e26\u518d\u6b21\u6e2c\u8a66\u3002<\/p>\n<\/li>\n<li>\n<p>\u82e5\u5ef6\u9072\u504f\u9ad8\uff0c\u53ef\u5617\u8a66\u8abf\u6574\u4f47\u5217\u898f\u5247\u6216\u5207\u63db\u81f3\u5176\u4ed6\u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u3002<\/p>\n<\/li>\n<li>\n<p>\u82e5\u91cd\u50b3\u6b21\u6578\u904e\u591a\uff0c\u8acb\u76e3\u63a7\u66ab\u505c\u8a0a\u6846\u4e26\u5168\u9762\u6aa2\u8996\u7db2\u8def\u74b0\u5883\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u6240\u6709\u8b8a\u66f4\u90fd\u61c9\u5148\u5728\u6e2c\u8a66\u74b0\u5883\u9a57\u8b49\uff0c\u518d\u90e8\u7f72\u5230\u6b63\u5f0f\u4f3a\u670d\u5668\uff0c\u4ee5\u964d\u4f4e\u98a8\u96aa\u3002<\/p>\n<\/blockquote>\n<h2>\u9999\u6e2f\u4f3a\u670d\u5668\u7684\u7279\u6b8a\u8003\u91cf<\/h2>\n<h3>\u5408\u898f\u8207\u6cd5\u5f8b\u5c64\u9762<\/h3>\n<p>\u5728\u7ba1\u7406\u9999\u6e2f\u5730\u5340\u7684\u4f3a\u670d\u5668\u6642\uff0c\u4f60\u5fc5\u9808\u9075\u5faa\u7576\u5730\u76f8\u95dc\u6cd5\u898f\u3002\u9999\u6e2f\u5be6\u65bd\u56b4\u683c\u7684\u8cc7\u6599\u96b1\u79c1\u6cd5\u898f\uff0c\u4f60\u61c9\u5728\u8b8a\u66f4\u7db2\u8def\u8a2d\u5b9a\u524d\uff0c\u8a73\u95b1\u300a\u500b\u4eba\u8cc7\u6599\uff08\u79c1\u96b1\uff09\u689d\u4f8b\u300b\u3002\u90e8\u5206\u6f14\u7b97\u6cd5\u6216\u76e3\u63a7\u5de5\u5177\u53ef\u80fd\u6703\u8490\u96c6\u4f7f\u7528\u8005\u8cc7\u6599\uff0c\u56e0\u6b64\u52d9\u5fc5\u8981\u78ba\u4fdd\u8b8a\u66f4\u5167\u5bb9\u4e0d\u9055\u53cd\u76f8\u95dc\u898f\u5b9a\u3002\u4f60\u540c\u6642\u9700\u8981\u8003\u616e\u8de8\u5883\u8cc7\u6599\u50b3\u8f38\u7684\u9650\u5236\u3002\u82e5\u4f3a\u670d\u5668\u8655\u7406\u570b\u969b\u6d41\u91cf\uff0c\u8acb\u78ba\u8a8d\u73fe\u884c\u7d44\u614b\u4e0d\u6703\u89f8\u72af\u4efb\u4f55\u6cd5\u5f8b\u8981\u6c42\u3002<\/p>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u5efa\u8b70\u5b9a\u671f\u66f4\u65b0\u5c0d\u672c\u5730\u6cd5\u898f\u7684\u8a8d\u77e5\u3002\u9999\u6e2f\u7684\u79d1\u6280\u8207\u76e3\u7ba1\u74b0\u5883\u8b8a\u5316\u5feb\u901f\uff0c\u6301\u7e8c\u95dc\u6ce8\u76f8\u7576\u91cd\u8981\u3002<\/p>\n<\/blockquote>\n<h3>\u7db2\u8def\u74b0\u5883\u8207\u5ef6\u9072\u7279\u6027<\/h3>\n<p>\u9999\u6e2f\u7684\u7db2\u8def\u74b0\u5883\u5177\u6709\u9ad8\u5bc6\u5ea6\u6a5f\u623f\u8207\u983b\u7e41\u570b\u969b\u4e92\u806f\u7b49\u7279\u5fb5\u3002\u7531\u65bc\u8de8\u5883\u6d41\u91cf\u9f90\u5927\uff0c\u4f60\u53ef\u80fd\u6703\u89c0\u5bdf\u5230\u5ef6\u9072\u6ce2\u52d5\u3002\u5927\u91cf\u4f7f\u7528\u8005\u900f\u904e\u884c\u52d5\u88dd\u7f6e\u9023\u7dda\uff0c\u4e5f\u53ef\u80fd\u9020\u6210\u7db2\u8def\u54c1\u8cea\u7a81\u767c\u6027\u7684\u8b8a\u5316\u3002\u5728\u8abf\u6574 TCP \u64c1\u585e\u63a7\u5236\u8a2d\u5b9a\u4e4b\u5f8c\uff0c\u61c9\u6301\u7e8c\u76e3\u6e2c\u5ef6\u9072\u8207\u541e\u5410\u91cf\uff0c\u4ee5\u4fbf\u53ca\u65e9\u767c\u73fe\u554f\u984c\u4e26\u7dad\u6301\u7a69\u5b9a\u6548\u80fd\u3002<\/p>\n<p>\u4e0b\u5217\u8868\u683c\u53ef\u5354\u52a9\u4f60\u8a18\u9304\u95dc\u9375\u7db2\u8def\u7279\u6027\uff1a<\/p>\n<div fullwidth=\"\" class=\"qc-default-table-wrapper \">\n<table style=\"min-width: 50px;\">\n<colgroup>\n<col style=\"min-width: 25px;\">\n<col style=\"min-width: 25px;\"><\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u56e0\u7d20<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u5178\u578b\u6578\u503c\u6216\u8aaa\u660e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5e73\u5747\u5ef6\u9072<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u672c\u5730\u7d04 10\u201330 ms\uff0c\u5168\u7403\u9023\u7dda\u5247\u66f4\u9ad8<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5c01\u5305\u907a\u5931\u7387<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6574\u9ad4\u504f\u4f4e\uff0c\u4f46\u5c16\u5cf0\u6642\u6bb5\u53ef\u80fd\u51fa\u73fe\u907a\u5931\u5c16\u5cf0<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u983b\u5bec\u53ef\u7528\u5ea6<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7e3d\u9ad4\u983b\u5bec\u5145\u8db3\uff0c\u4f46\u9700\u5728\u773e\u591a\u5ba2\u6236\u4e4b\u9593\u5171\u4eab<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3>\u5340\u57df\u6700\u4f73\u5be6\u52d9<\/h3>\n<p>\u7d50\u5408\u9999\u6e2f\u5be6\u969b\u7db2\u8def\u74b0\u5883\uff0c\u9075\u5faa\u4ee5\u4e0b\u6700\u4f73\u5be6\u52d9\u53ef\u9032\u4e00\u6b65\u63d0\u5347\u4f3a\u670d\u5668\u6548\u80fd\uff1a<\/p>\n<ol>\n<li>\n<p>\u5728\u51fa\u53e3\u4ecb\u9762\u8a2d\u5b9a\u8db3\u5920\u9ad8\u7684\u983b\u5bec\u4e0a\u9650\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5c01\u5305\u4e1f\u68c4\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b9a\u671f\u6aa2\u8996\u6d41\u91cf\u5728\u5404\u4f47\u5217\u4e2d\u7684\u5206\u5e03\u60c5\u5f62\uff0c\u4f9d\u7167\u670d\u52d9\u7279\u6027\u5c07\u4e0d\u540c\u696d\u52d9\u5206\u914d\u81f3\u5408\u9069\u4f47\u5217\uff0c\u4ee5\u964d\u4f4e\u5ef6\u9072\u3002<\/p>\n<\/li>\n<li>\n<p>\u50c5\u5c0d\u95dc\u9375\u670d\u52d9\u8a2d\u5b9a\u983b\u5bec\u4fdd\u8b49\uff0c\u907f\u514d\u5728\u9ad8\u6d41\u91cf\u60c5\u5883\u4e0b\u5f15\u767c\u65b0\u7684\u58c5\u585e\u3002<\/p>\n<\/li>\n<li>\n<p>\u8a2d\u8a08\u6d41\u91cf\u512a\u5148\u6b0a\u6642\uff0c\u9078\u64c7\u300c\u4f9d\u670d\u52d9\u300d\u6216\u300c\u4f9d\u7b56\u7565\u300d\u5176\u4e2d\u4e00\u7a2e\u65b9\u5f0f\u5373\u53ef\uff0c\u907f\u514d\u540c\u6642\u4f7f\u7528\uff0c\u4ee5\u6e1b\u5c11\u6392\u932f\u8907\u96dc\u5ea6\u3002<\/p>\n<\/li>\n<li>\n<p>\u7dad\u6301 QoS\uff08\u670d\u52d9\u54c1\u8cea\uff09\u8a2d\u5b9a\u7684\u7c21\u6f54\u6027\uff0c\u904e\u5ea6\u8907\u96dc\u7684\u898f\u5247\u53ef\u80fd\u53cd\u800c\u62c9\u4f4e\u6548\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p>\u9032\u884c\u7db2\u8def\u6e2c\u8a66\u6642\u512a\u5148\u63a1\u7528 UDP\uff0c\u901a\u5e38\u80fd\u7372\u5f97\u8f03\u7cbe\u6e96\u7684\u91cf\u6e2c\u7d50\u679c\uff0c\u4e26\u907f\u514d\u983b\u5bec\u904e\u5ea6\u4f54\u7528\u3002<\/p>\n<\/li>\n<\/ol>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u5efa\u8b70\u5b9a\u671f\u6aa2\u8996\u4f3a\u670d\u5668\u6548\u80fd\uff0c\u4e26\u96a8\u8457\u7db2\u8def\u689d\u4ef6\u8b8a\u5316\uff0c\u9069\u6642\u66f4\u65b0 TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u8207\u76f8\u95dc\u53c3\u6578\u3002<\/p>\n<\/blockquote>\n<div dividerstyle=\"solid\" size=\"large\" color=\"#D1D1D1\" class=\"qc-divider-wrapper\">\n<div class=\"qc-divider\" style=\"border-top-style: solid; width: 100%; border-top-color: rgb(209, 209, 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