{"id":33411,"date":"2026-06-16T17:02:26","date_gmt":"2026-06-16T09:02:26","guid":{"rendered":"https:\/\/www.varidata.com\/uncategorized-zh-tw\/configure-bbr-to-improve-the-throughput-of-hk-cn2-servers\/"},"modified":"2026-06-16T17:05:00","modified_gmt":"2026-06-16T09:05:00","slug":"configure-bbr-to-improve-the-throughput-of-hk-cn2-servers","status":"publish","type":"post","link":"https:\/\/www.varidata.com\/zh-tw\/knowledge-tc\/configure-bbr-to-improve-the-throughput-of-hk-cn2-servers\/","title":{"rendered":"\u5982\u4f55\u914d\u7f6e BBR \u52a0\u901f\u4ee5\u63d0\u5347\u9999\u6e2f CN2 \u4f3a\u670d\u5668\u541e\u5410\u91cf"},"content":{"rendered":"<style>\n    table, th, td {\n        border: 1px solid black;\n        border-collapse: collapse;\n    }\n<\/style>\n<p>\u5982\u679c\u4f60\u60f3\u63d0\u5347 <a target=\"_self\" href=\"https:\/\/www.varidata.com\/zh-tw\/server\/hk\/cn2\/\">\u9999\u6e2f CN2 \u4f3a\u670d\u5668<\/a>\u7684\u7db2\u8def\u541e\u5410\u91cf\uff0cBBR \u52a0\u901f\u662f\u4e00\u7a2e\u73fe\u4ee3\u5316\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f60\u7372\u5f97\u66f4\u9ad8\u901f\u5ea6\u548c\u66f4\u4f4e\u5ef6\u9072\u3002\u5728 Linux \u4f3a\u670d\u5668\u4e0a\uff0cBBR \u64c1\u585e\u63a7\u5236\u4f9d\u9760\u983b\u5bec\u548c\u5ef6\u9072\u4f30\u7b97\uff0c\u800c\u4e0d\u662f\u4e1f\u5305\u8a0a\u865f\uff0c\u9019\u5c0d\u5927\u983b\u5bec\u2013\u6642\u5ef6\u7a4d\u8def\u7531\u5c24\u70ba\u6709\u5229\u3002\u8a31\u591a\u4e9e\u592a\u6a5f\u623f\u7684\u4f7f\u7528\u8005\u56de\u5831\u4e86\u4ee5\u4e0b\u597d\u8655\uff1a<\/p>\n<ul>\n<li>\n<p>\u8207 Cubic \u7b49\u50b3\u7d71\u6f14\u7b97\u6cd5\u76f8\u6bd4\uff0c\u6709\u660e\u986f\u7684\u6709\u6548\u541e\u5410\uff08goodput\uff09\u63d0\u5347<\/p>\n<\/li>\n<li>\n<p>\u5728\u9ad8\u5ef6\u9072\u548c\u9ad8\u983b\u5bec\u5834\u666f\u4e0b\uff0c\u6709\u6642\u53ef\u63d0\u5347\u9ad8\u9054 115% \u7684\u6709\u6548\u541e\u5410<\/p>\n<\/li>\n<li>\n<p>\u5728\u9ad8\u8ca0\u8f09\u5834\u666f\u4e0b\u4ecd\u80fd\u4fdd\u6301\u7a69\u5b9a\u8868\u73fe<\/p>\n<\/li>\n<\/ul>\n<p>\u53ea\u8981\u5728\u914d\u7f6e\u904e\u7a0b\u4e2d\u9075\u5faa\u6700\u4f73\u5be6\u52d9\uff0c\u4f60\u5c31\u80fd\u7372\u5f97\u5e73\u6ed1\u4e14\u6301\u4e45\u7684\u52a0\u901f\u6548\u679c\u3002<\/p>\n<h2>\u95dc\u9375\u8981\u9ede<\/h2>\n<ul>\n<li>\n<p>BBR \u52a0\u901f\u900f\u904e\u4f30\u7b97\u983b\u5bec\u548c\u5f80\u8fd4\u6642\u9593\uff08RTT\uff09\uff0c\u800c\u4e0d\u662f\u4f9d\u8cf4\u4e1f\u5305\u8a0a\u865f\uff0c\u5f9e\u800c\u63d0\u5347\u7db2\u8def\u541e\u5410\u4e26\u964d\u4f4e\u5ef6\u9072\u3002<\/p>\n<\/li>\n<li>\n<p>\u555f\u7528 BBR \u524d\u9700\u78ba\u4fdd Linux \u6838\u5fc3\u7248\u672c\u4e0d\u4f4e\u65bc 4.9\u3002\u5982\u6709\u9700\u8981\uff0c\u53ef\u5728 CentOS \u4e2d\u4f7f\u7528 ELRepo \u7b49\u5de5\u5177\u9032\u884c\u6838\u5fc3\u5347\u7d1a\u3002<\/p>\n<\/li>\n<li>\n<p>\u900f\u904e sysctl \u6307\u4ee4\u5c07\u9810\u8a2d\u4f47\u5217\u6f14\u7b97\u6cd5\u8a2d\u5b9a\u70ba\u300cfq\u300d\uff0c\u4e26\u5c07 TCP \u64c1\u585e\u63a7\u5236\u8a2d\u5b9a\u70ba\u300cbbr\u300d\uff0c\u53ef\u7372\u5f97\u66f4\u4f73\u6548\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p>\u5c07 BBR \u76f8\u95dc\u914d\u7f6e\u5132\u5b58\u5230 <code>\/etc\/sysctl.d\/99-bbr.conf<\/code> \u4e2d\uff0c\u4e26\u78ba\u4fdd BBR \u6a21\u7d44\u958b\u6a5f\u81ea\u52d5\u8f09\u5165\uff0c\u4ee5\u5be6\u73fe\u6301\u4e45\u751f\u6548\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u555f\u7528 BBR \u524d\u5f8c\u4f7f\u7528 iperf3 \u548c ping \u7b49\u5de5\u5177\u6e2c\u8a66\u7db2\u8def\u6548\u80fd\uff0c\u4ee5\u6bd4\u8f03\u541e\u5410\u91cf\u548c\u5ef6\u9072\u7684\u6539\u5584\u60c5\u6cc1\u3002<\/p>\n<\/li>\n<\/ul>\n<h2>BBR \u64c1\u585e\u63a7\u5236\u6982\u89bd<\/h2>\n<h3>\u4ec0\u9ebc\u662f BBR \u64c1\u585e\u63a7\u5236<\/h3>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528 BBR \u4f86\u63d0\u5347\u4f3a\u670d\u5668\u7684\u7db2\u8def\u6548\u80fd\u3002\u8207 CUBIC \u6216 Reno \u7b49\u50b3\u7d71\u65b9\u6cd5\u4e0d\u540c\uff0c\u9019\u7a2e\u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u4e26\u4e0d\u4f9d\u8cf4\u4e1f\u5305\u4f86\u5224\u65b7\u64c1\u585e\u60c5\u6cc1\u3002BBR \u64c1\u585e\u63a7\u5236\u6703\u4f30\u7b97\u74f6\u9838\u983b\u5bec\u548c\u5f80\u8fd4\u50b3\u64ad\u6642\u9593\uff0c\u900f\u904e\u91cf\u6e2c\u53ef\u7528\u983b\u5bec\u548c\u6700\u5c0f\u5f80\u8fd4\u6642\u9593\uff08RTT\uff09\uff0c\u5efa\u7acb\u4e00\u500b\u7db2\u8def\u6a21\u578b\u3002\u4f60\u6703\u53d7\u76ca\u65bc\u9019\u7a2e\u4f5c\u6cd5\uff0c\u56e0\u70ba BBR \u6703\u6839\u64da\u91cf\u6e2c\u7d50\u679c\u52d5\u614b\u8abf\u6574\u767c\u9001\u7bc0\u594f\uff08pacing rate\uff09\u548c\u64c1\u585e\u8996\u7a97\uff0c\u5f9e\u800c\u5e6b\u52a9\u4f60\u5728\u4fdd\u6301\u8f03\u4f4e\u5ef6\u9072\u7684\u540c\u6642\u7372\u5f97\u66f4\u512a\u7684\u541e\u5410\u91cf\u3002<\/p>\n<blockquote>\n<p>\u6ce8\u610f\uff1aBBR \u52a0\u901f\u4e3b\u8981\u4f9d\u8cf4\u5169\u500b\u95dc\u9375\u53c3\u6578\u2014\u2014\u767c\u9001\u7bc0\u594f\uff08pacing rate\uff09\u548c\u64c1\u585e\u8996\u7a97\uff08CWND\uff09\u2014\u2014\u4f86\u63a7\u5236\u4f3a\u670d\u5668\u767c\u9001\u8cc7\u6599\u7684\u901f\u5ea6\u3002\u9019\u7a2e\u65b9\u5f0f\u53ef\u4ee5\u964d\u4f4e\u64c1\u585e\uff0c\u4e26\u4fdd\u6301\u8f03\u5c0f\u7684\u4f47\u5217\u9577\u5ea6\u3002<\/p>\n<\/blockquote>\n<p>\u5728 TCP BBR \u4e2d\uff0c\u4f60\u53ef\u4ee5\u770b\u5230\u591a\u9805\u6709\u52a9\u65bc\u63d0\u5347\u541e\u5410\u91cf\u7684\u95dc\u9375\u7279\u6027\uff1a<\/p>\n<ul>\n<li>\n<p>\u983b\u5bec\u4f30\u7b97\uff1a\u900f\u904e\u5206\u6790\u5c01\u5305\u7684\u50b3\u8f38\u901f\u7387\u4f86\u91cf\u6e2c\u53ef\u7528\u983b\u5bec\u3002<\/p>\n<\/li>\n<li>\n<p>RTT \u4f30\u7b97\uff1a\u7dad\u8b77\u6700\u5c0f\u8207\u57fa\u6e96 RTT\uff0c\u4e26\u64da\u6b64\u8abf\u6574\u767c\u9001\u7bc0\u594f\uff0c\u5f9e\u800c\u964d\u4f4e\u5ef6\u9072\u3002<\/p>\n<\/li>\n<li>\n<p>\u74f6\u9838\u8def\u7531\u5075\u6e2c\uff1a\u5229\u7528\u63a2\u6e2c\u8207 RTT \u56de\u994b\u8b58\u5225\u771f\u6b63\u7684\u74f6\u9838\u93c8\u8def\u3002<\/p>\n<\/li>\n<li>\n<p>\u64c1\u585e\u8996\u7a97\u7ba1\u7406\uff1a\u6839\u64da pacing \u589e\u76ca\u8207\u63a2\u6e2c\u7d50\u679c\u8abf\u6574\u8f49\u767c\u901f\u7387\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f4e\u5ef6\u9072\u904b\u4f5c\uff1a\u4fdd\u6301\u4f47\u5217\u9577\u5ea6\u5118\u53ef\u80fd\u5c0f\uff0c\u5f9e\u800c\u9032\u4e00\u6b65\u964d\u4f4e\u5ef6\u9072\u3002<\/p>\n<\/li>\n<\/ul>\n<h3>\u70ba\u4ec0\u9ebc\u5728\u9999\u6e2f CN2 \u4f3a\u670d\u5668\u4e0a\u4f7f\u7528 BBR \u52a0\u901f<\/h3>\n<p>\u9999\u6e2f CN2 \u4f3a\u670d\u5668\u9762\u81e8\u4e00\u4e9b\u7368\u7279\u7684\u7db2\u8def\u74b0\u5883\u6311\u6230\u3002\u672c\u5730\u5b58\u53d6\u901f\u5ea6\u5f80\u5f80\u53ef\u4ee5\u9054\u5230 1Gbps\uff0c\u4f46\u570b\u969b\u983b\u5bec\u537b\u53ef\u80fd\u88ab\u9650\u5236\u5728 20Mbps \u5de6\u53f3\u3002\u8def\u7531\u7e5e\u884c\u76f8\u7576\u5e38\u898b\uff0c\u4e26\u4e14\u53ea\u6709\u4e2d\u570b\u79fb\u52d5\u63d0\u4f9b\u76f4\u9023\u56de\u7a0b\u8def\u7531\u3002\u9019\u4e9b\u554f\u984c\u6703\u5c0e\u81f4\u66f4\u9ad8\u7684\u5ef6\u9072\u4e26\u9650\u5236\u541e\u5410\u91cf\u3002<\/p>\n<p>\u900f\u904e\u90e8\u7f72 BBR \u52a0\u901f\uff0c\u4f60\u53ef\u4ee5\u6b63\u9762\u61c9\u5c0d\u9019\u4e9b\u6311\u6230\u3002\u85c9\u7531\u9019\u5957\u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\uff0c\u4f60\u53ef\u4ee5\u91dd\u5c0d\u672c\u5730\u8207\u570b\u969b\u4f7f\u7528\u8005\u4f86\u512a\u5316\u4f3a\u670d\u5668\u6548\u80fd\u3002BBR \u6709\u52a9\u65bc\u4f60\u7a81\u7834\u93c8\u8def\u74f6\u9838\u3001\u6e1b\u5c11\u5ef6\u9072\u3002\u540c\u6642\uff0c\u4f60\u4e5f\u53ef\u4ee5\u512a\u5316 qdisc\uff08\u4f47\u5217\u6392\u7a0b\uff09\u8a2d\u5b9a\uff0c\u4ee5\u9032\u4e00\u6b65\u63d0\u5347\u7db2\u8def\u6548\u7387\u3002\u7576\u4f60\u555f\u7528 BBR \u6642\uff0c\u4f60\u7684\u9999\u6e2f CN2 \u4f3a\u670d\u5668\u6703\u8b8a\u5f97\u66f4\u52a0\u7a69\u5b9a\u3001\u56de\u61c9\u66f4\u5feb\u3002<\/p>\n<h2>Linux \u74b0\u5883\u4e0b\u555f\u7528 BBR \u52a0\u901f\u7684\u524d\u7f6e\u689d\u4ef6<\/h2>\n<h3>\u6838\u5fc3\u7248\u672c\u8981\u6c42<\/h3>\n<p>\u5728\u555f\u7528 BBR \u4e4b\u524d\uff0c\u4f60\u5fc5\u9808\u5148\u6aa2\u67e5 Linux \u6838\u5fc3\u7248\u672c\u3002\u8a72\u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u8981\u6c42\u6838\u5fc3\u7248\u672c\u4e0d\u4f4e\u65bc 4.9\u3002\u591a\u6578\u73fe\u4ee3\u767c\u884c\u7248\uff08\u5982 CentOS 7\u3001CentOS 8\u3001CentOS Stream\u3001AlmaLinux \u548c Rocky Linux\uff09\u90fd\u5df2\u6eff\u8db3\u9019\u4e00\u8981\u6c42\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u67e5\u770b\u76ee\u524d\u6838\u5fc3\u7248\u672c\uff1a<\/p>\n<pre><code>uname -r\r\n<\/code><\/pre>\n<p>\u5982\u679c\u76ee\u524d\u6838\u5fc3\u7248\u672c\u4f4e\u65bc 4.9\uff0c\u5c31\u9700\u8981\u9032\u884c\u5347\u7d1a\u3002CentOS \u4f7f\u7528\u8005\u901a\u5e38\u6703\u501f\u52a9 ELRepo \u8edf\u9ad4\u5eab\u4f86\u66f4\u65b0\u6838\u5fc3\uff1bAlmaLinux \u548c Rocky Linux \u901a\u5e38\u9810\u8a2d\u63d0\u4f9b\u8f03\u65b0\u7684\u6838\u5fc3\u3002\u5728\u5347\u7d1a\u6838\u5fc3\u4e4b\u524d\uff0c\u4f60\u61c9\u7576\u5148\u5099\u4efd\u597d\u91cd\u8981\u8cc7\u6599\u3002Linux \u6838\u5fc3\u7248\u672c\u6c7a\u5b9a\u4e86\u4f60\u662f\u5426\u53ef\u4ee5\u4f7f\u7528 BBR \u4f5c\u70ba\u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u3002<\/p>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u4f60\u53ef\u4ee5\u900f\u904e\u95b1\u8b80\u767c\u884c\u7248\u5b98\u65b9\u6587\u4ef6\u4f86\u78ba\u8a8d\u76f8\u5bb9\u6027\u3002CentOS\u3001AlmaLinux \u548c Rocky Linux \u90fd\u63d0\u4f9b\u6838\u5fc3\u5347\u7d1a\u7684\u76f8\u95dc\u6307\u5357\u3002<\/p>\n<\/blockquote>\n<h3>\u6e96\u5099 Linux \u4f3a\u670d\u5668\u74b0\u5883<\/h3>\n<p>\u5728\u555f\u7528 BBR \u52a0\u901f\u4e4b\u524d\uff0c\u4f60\u9700\u8981\u5148\u5c0d Linux \u4f3a\u670d\u5668\u9032\u884c\u4e00\u4e9b\u6e96\u5099\u5de5\u4f5c\u3002\u9996\u5148\u66f4\u65b0\u7cfb\u7d71\u5957\u4ef6\u3002\u5728 CentOS \u4e0a\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u6307\u4ee4\uff1a<\/p>\n<pre><code>sudo yum update -y\r\n<\/code><\/pre>\n<p>\u63a5\u8457\uff0c\u78ba\u8a8d\u76ee\u524d\u6838\u5fc3\u662f\u5426\u652f\u63f4\u516c\u5e73\u4f47\u5217\uff08fair queueing\uff09\u5c01\u5305\u6392\u7a0b\u5668\u3002\u8a72\u6392\u7a0b\u5668\u80fd\u5920\u512a\u5316\u5c01\u5305\u8655\u7406\uff0c\u4e26\u8207 BBR \u642d\u914d\u826f\u597d\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6307\u4ee4\u67e5\u770b\u76ee\u524d\u9810\u8a2d\u4f47\u5217\u6392\u7a0b\u5668\uff1a<\/p>\n<pre><code>sysctl net.core.default_qdisc\r\n<\/code><\/pre>\n<p>\u70ba\u4e86\u7372\u5f97\u6700\u4f73\u6548\u679c\uff0c\u4f60\u61c9\u8a72\u5c07\u9810\u8a2d\u4f47\u5217\u6392\u7a0b\u5668\u8a2d\u5b9a\u70ba <code>fq<\/code>\u3002\u53ef\u4f7f\u7528 sysctl \u6307\u4ee4\u9032\u884c\u8a2d\u5b9a\uff1a<\/p>\n<pre><code>sysctl -w net.core.default_qdisc=fq\r\n<\/code><\/pre>\n<p>\u4f60\u9084\u9700\u8981\u900f\u904e sysctl \u6307\u5b9a BBR \u4f5c\u70ba TCP \u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u3002\u5c07 TCP \u64c1\u585e\u63a7\u5236\u8a2d\u5b9a\u70ba <code>bbr<\/code>\uff1a<\/p>\n<pre><code>sysctl -w net.ipv4.tcp_congestion_control=bbr\r\n<\/code><\/pre>\n<p>\u96a8\u5f8c\uff0c\u4f60\u61c9\u5c07\u4e0a\u8ff0 sysctl \u8a2d\u5b9a\u5beb\u5165 <code>\/etc\/sysctl.conf<\/code> \u6216\u5c08\u7528\u8a2d\u5b9a\u6a94\u4e2d\uff0c\u4ee5\u78ba\u4fdd\u4f3a\u670d\u5668\u91cd\u65b0\u555f\u52d5\u5f8c BBR \u4ecd\u7136\u751f\u6548\u3002\u4f60\u9084\u9700\u8981\u6aa2\u67e5\u5c01\u5305\u8655\u7406\u884c\u70ba\uff0c\u78ba\u8a8d\u4f3a\u670d\u5668\u5df2\u7d93\u4f7f\u7528\u6b63\u78ba\u7684\u4f47\u5217\u6392\u7a0b\u5668\u8207\u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u3002<\/p>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u4fee\u6539 sysctl \u8a2d\u5b9a\u5f8c\u4e00\u5b9a\u8981\u5c0d\u7db2\u8def\u9032\u884c\u6e2c\u8a66\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528 ping \u6216 iperf3 \u6aa2\u67e5\u4e1f\u5305\u7387\u8207\u5ef6\u9072\u3002<\/p>\n<\/blockquote>\n<h2>\u5206\u6b65\u914d\u7f6e BBR \u52a0\u901f<\/h2>\n<h3>\u6aa2\u67e5 Linux \u6838\u5fc3\u7248\u672c<\/h3>\n<p>\u5728\u958b\u59cb\u914d\u7f6e BBR \u52a0\u901f\u524d\uff0c\u4f60\u5fc5\u9808\u5148\u6aa2\u67e5\u6838\u5fc3\u7248\u672c\u3002\u6838\u5fc3\u7248\u672c\u6c7a\u5b9a\u4f3a\u670d\u5668\u662f\u5426\u652f\u63f4\u8a72\u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u3002\u53ef\u4ee5\u900f\u904e\u4ee5\u4e0b\u7c21\u55ae\u6307\u4ee4\u53d6\u5f97\u76ee\u524d\u6838\u5fc3\u7248\u672c\uff1a<\/p>\n<ul>\n<li>\n<p>\u57f7\u884c <code>uname -r<\/code> \u986f\u793a\u76ee\u524d\u6838\u5fc3\u7248\u672c\u3002<\/p>\n<\/li>\n<li>\n<p>\u5728\u7cfb\u7d71\u91cd\u65b0\u555f\u52d5\u5f8c\uff0c\u518d\u6b21\u57f7\u884c <code>uname -r<\/code>\uff0c\u78ba\u8a8d\u6700\u65b0\u6838\u5fc3\u5df2\u751f\u6548\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5982\u679c\u6838\u5fc3\u7248\u672c\u9ad8\u65bc 4.9\uff0c\u5c31\u53ef\u4ee5\u7e7c\u7e8c\u4e0b\u4e00\u6b65\uff1b\u5426\u5247\u9700\u8981\u5148\u9032\u884c\u5347\u7d1a\u3002\u5728 CentOS \u4e0a\uff0c\u4f60\u53ef\u4ee5\u6309\u5982\u4e0b\u6b65\u9a5f\u64cd\u4f5c\uff1a<\/p>\n<ol>\n<li>\n<p>\u532f\u5165 ELRepo GPG \u91d1\u9470\u4e26\u5b89\u88dd\u8edf\u9ad4\u5eab\uff1a<\/p>\n<pre><code>sudo rpm --import https:\/\/www.elrepo.org\/RPM-GPG-KEY-elrepo.org\r\nsudo rpm -Uvh https:\/\/www.elrepo.org\/elrepo-release-7.el7.elrepo.noarch.rpm\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u5b89\u88dd\u6700\u65b0\u4e3b\u7dda\u6838\u5fc3\uff1a<\/p>\n<pre><code>sudo yum --enablerepo=elrepo-kernel install kernel-ml -y\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u5c07\u65b0\u6838\u5fc3\u8a2d\u5b9a\u70ba\u9810\u8a2d\u958b\u6a5f\u9805\u76ee\uff1a<\/p>\n<pre><code>sudo grub2-set-default 0\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u91cd\u65b0\u7522\u751f GRUB \u8a2d\u5b9a\uff1a<\/p>\n<pre><code>sudo grub2-mkconfig -o \/boot\/grub2\/grub.cfg\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u91cd\u65b0\u555f\u52d5\u4f3a\u670d\u5668\uff1a<\/p>\n<pre><code>sudo reboot\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u91cd\u65b0\u555f\u52d5\u5f8c\u518d\u6b21\u9a57\u8b49\u6838\u5fc3\u7248\u672c\uff1a<\/p>\n<pre><code>uname -r\r\n<\/code><\/pre>\n<\/li>\n<\/ol>\n<p>\u4f60\u61c9\u7576\u770b\u5230\u4e00\u500b\u9ad8\u65bc 4.9 \u7684\u7248\u672c\u865f\uff0c\u9019\u8868\u793a\u4f3a\u670d\u5668\u5df2\u70ba BBR \u52a0\u901f\u505a\u597d\u6e96\u5099\u3002<\/p>\n<h3>\u555f\u7528 BBR \u52a0\u901f<\/h3>\n<p>\u8981\u555f\u7528 BBR \u52a0\u901f\uff0c\u9700\u8981\u8a2d\u5b9a\u6b63\u78ba\u7684 sysctl \u53c3\u6578\u3002\u9019\u4e9b\u53c3\u6578\u63a7\u5236\u4f3a\u670d\u5668\u5982\u4f55\u8655\u7406\u7db2\u8def\u6d41\u91cf\u3002\u4f60\u9700\u8981\u7de8\u8f2f sysctl \u8a2d\u5b9a\u6a94\uff1a\u958b\u555f <code>\/etc\/sysctl.conf<\/code>\uff0c\u6216\u5728 <code>\/etc\/sysctl.d\/99-bbr.conf<\/code> \u5efa\u7acb\u4e00\u500b\u65b0\u6a94\u6848\uff0c\u4e26\u5beb\u5165\u5982\u4e0b\u5167\u5bb9\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;\">\n          <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u53c3\u6578<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u53d6\u503c<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>net.core.default_qdisc<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>fq<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>net.ipv4.tcp_congestion_control<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>bbr<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p>\u5132\u5b58\u6a94\u6848\u5f8c\uff0c\u5957\u7528\u8a2d\u5b9a\uff1a<\/p>\n<pre><code>sudo sysctl --system\r\n<\/code><\/pre>\n<p>\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528 <code>sudo sysctl -p<\/code> \u4f86\u91cd\u65b0\u8f09\u5165\u8a2d\u5b9a\u3002\u9019\u4e9b\u8b8a\u66f4\u6703\u555f\u7528 BBR\uff0c\u4e26\u5c07\u7db2\u8def\u4f47\u5217\u6392\u7a0b\u5668\u8a2d\u5b9a\u70ba\u516c\u5e73\u4f47\u5217\uff08fq\uff09\uff0c\u5e6b\u52a9\u4f60\u512a\u5316\u4f3a\u670d\u5668\u7684\u541e\u5410\u91cf\u548c\u5ef6\u9072\u8868\u73fe\u3002<\/p>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u4f60\u53ef\u4ee5\u900f\u904e <code>sudo modprobe tcp_bbr<\/code> \u624b\u52d5\u8f09\u5165 BBR \u6a21\u7d44\uff0c\u4e26\u4f7f\u7528 <code>lsmod | grep bbr<\/code> \u6aa2\u67e5\u6a21\u7d44\u662f\u5426\u5df2\u6210\u529f\u8f09\u5165\u3002<\/p>\n<\/blockquote>\n<h3>\u8b93 BBR \u8a2d\u5b9a\u6301\u4e45\u751f\u6548<\/h3>\n<p>\u4f60\u9700\u8981\u78ba\u4fdd BBR \u8a2d\u5b9a\u80fd\u5920\u5728\u91cd\u65b0\u555f\u52d5\u5f8c\u81ea\u52d5\u751f\u6548\u3002\u9019\u4e00\u6b65\u53ef\u4ee5\u8b93 BBR \u52a0\u901f\u5728\u6bcf\u6b21\u7cfb\u7d71\u555f\u52d5\u6642\u90fd\u81ea\u52d5\u555f\u7528\u3002\u5efa\u8b70\u5728 <code>\/etc\/sysctl.d\/<\/code> \u4e0b\u5efa\u7acb\u7368\u7acb\u7684\u8a2d\u5b9a\u6a94\uff0c\u800c\u4e0d\u662f\u76f4\u63a5\u9644\u52a0\u5230 <code>\/etc\/sysctl.conf<\/code>\uff0c\u9019\u6a23\u8f03\u4fbf\u65bc\u7ba1\u7406\u548c\u6392\u67e5\u91cd\u8907\u689d\u76ee\u3002<\/p>\n<ul>\n<li>\n<p>\u5efa\u7acb <code>\/etc\/sysctl.d\/99-bbr.conf<\/code>\uff0c\u5167\u5bb9\u5982\u4e0b\uff1a<\/p>\n<pre><code>net.core.default_qdisc=fq\r\nnet.ipv4.tcp_congestion_control=bbr\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u78ba\u4fdd BBR \u6a21\u7d44\u5728\u555f\u52d5\u6642\u81ea\u52d5\u8f09\u5165\uff0c\u53ef\u5efa\u7acb <code>\/etc\/modules-load.d\/bbr.conf<\/code> \u6a94\u6848\uff1a<\/p>\n<pre><code>tcp_bbr\r\n<\/code><\/pre>\n<\/li>\n<li>\n<p>\u5982\u679c\u8a72\u6a21\u7d44\u8f09\u5165\u6a94\u6848\u4e0d\u5b58\u5728\uff0c\u53ef\u57f7\u884c\uff1a<\/p>\n<pre><code>echo 'tcp_bbr' | sudo tee \/etc\/modules-load.d\/bbr.conf\r\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<p>\u7136\u5f8c\u5957\u7528\u65b0\u7684 sysctl \u8a2d\u5b9a\uff1a<\/p>\n<pre><code>sudo sysctl --system\r\n<\/code><\/pre>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u4f7f\u7528\u7368\u7acb\u7684 sysctl \u8a2d\u5b9a\u6a94\uff0c\u4fbf\u65bc\u4f60\u5728\u4e0d\u540c Linux \u767c\u884c\u7248\u4e2d\u5feb\u901f\u7a3d\u6838\u3001\u91cd\u7528\u6216\u79fb\u9664 BBR \u52a0\u901f\u8a2d\u5b9a\u3002<\/p>\n<\/blockquote>\n<h3>\u9a57\u8b49 BBR \u662f\u5426\u5df2\u555f\u7528<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u4f60\u9700\u8981\u78ba\u8a8d\u4f3a\u670d\u5668\u662f\u5426\u5df2\u7d93\u6210\u529f\u555f\u7528 BBR\u3002\u53ef\u4ee5\u4f7f\u7528\u591a\u689d\u6307\u4ee4\u6aa2\u67e5\u76ee\u524d\u7684\u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5\u548c\u4f47\u5217\u6392\u7a0b\u65b9\u5f0f\uff0c\u4e26\u78ba\u8a8d BBR \u662f\u5426\u6b63\u5728\u7ba1\u7406\u7db2\u8def\u9023\u7dda\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;\">\n          <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6307\u4ee4<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u7528\u9014<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>sudo sysctl net.ipv4.tcp_congestion_control<\/code><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6aa2\u67e5\u76ee\u524d\u4f7f\u7528\u7684\u64c1\u585e\u63a7\u5236\u6f14\u7b97\u6cd5<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>sudo sysctl net.core.default_qdisc<\/code><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u78ba\u8a8d\u9810\u8a2d\u4f47\u5217\u6392\u7a0b\u5668\u662f\u5426\u70ba Fair Queue<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>lsmod<\/code><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>grep bbr<\/code><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>ss -ti<\/code><\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>grep -i bbr<\/code><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<p>\u4f60\u9810\u671f\u6703\u770b\u5230\u985e\u4f3c\u5982\u4e0b\u7684\u7d50\u679c\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;\">\n          <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u6307\u4ee4<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u9810\u671f\u8f38\u51fa<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>sysctl net.ipv4.tcp_congestion_control<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>net.ipv4.tcp_congestion_control = bbr<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>lsmod<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>grep bbr<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>ss -tin<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5728\u64c1\u585e\u63a7\u5236\u6b04\u4f4d\u4e2d\u67e5\u770b\u662f\u5426\u5305\u542b <code>bbr<\/code><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<blockquote>\n<p>\u8aaa\u660e\uff1a\u5982\u679c\u5728\u64c1\u585e\u63a7\u5236\u8f38\u51fa\u4e2d\u770b\u5230 <code>bbr<\/code>\uff0c\u4e26\u78ba\u8a8d\u6a21\u7d44\u5df2\u8f09\u5165\uff0c\u5c31\u8868\u793a\u4f3a\u670d\u5668\u5df2\u7d93\u5728\u4f7f\u7528 BBR \u52a0\u901f\u3002\u6b64\u6642\u4f60\u4fbf\u53ef\u4ee5\u4eab\u53d7\u66f4\u9ad8\u7684\u7db2\u8def\u541e\u5410\u548c\u66f4\u4f4e\u7684\u5ef6\u9072\u3002<\/p>\n<\/blockquote>\n<p>\u900f\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u4f60\u5c31\u5b8c\u6210\u4e86\u5728\u9999\u6e2f CN2 \u4f3a\u670d\u5668\u4e0a\u914d\u7f6e BBR \u52a0\u901f\u3002\u53ea\u8981\u9075\u5faa\u9019\u4e9b\u6700\u4f73\u5be6\u52d9\uff0c\u5c31\u80fd\u7372\u5f97\u6301\u4e45\u800c\u53ef\u9760\u7684\u7db2\u8def\u6548\u80fd\u3002<\/p>\n<h2>\u57fa\u6e96\u6e2c\u8a66\u8207\u541e\u5410\u91cf\u512a\u5316<\/h2>\n<h3>\u4f7f\u7528 iperf3\u3001ping\u3001curl \u6e2c\u8a66\u6548\u80fd<\/h3>\n<p>\u4f60\u9700\u8981\u91cf\u5316 BBR \u5c0d\u4f3a\u670d\u5668\u6548\u80fd\u5e36\u4f86\u7684\u5f71\u97ff\u3002\u53ef\u4ee5\u5f9e <code>iperf3<\/code>\u3001<code>ping<\/code> \u548c <code>curl<\/code> \u7b49\u5de5\u5177\u5165\u624b\uff0c\u5728\u555f\u7528 BBR \u524d\u5f8c\u5206\u5225\u6e2c\u8a66\u7db2\u8def\u541e\u5410\u3001\u5ef6\u9072\u548c\u4e1f\u5305\u60c5\u6cc1\u3002<\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528 <code>iperf3<\/code> \u6e2c\u8a66\u9999\u6e2f CN2 \u4f3a\u670d\u5668\u8207\u9060\u7aef\u5ba2\u6236\u7aef\u4e4b\u9593\u7684\u541e\u5410\u7387\uff1a\u5728\u4f3a\u670d\u5668\u4e0a\u57f7\u884c <code>iperf3 -s<\/code>\uff0c\u5728\u5ba2\u6236\u7aef\u57f7\u884c <code>iperf3 -c &lt;server_ip&gt;<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>ping<\/code> \u91cf\u6e2c\u5f80\u8fd4\u6642\u9593\u8207\u4e1f\u5305\u7387\uff1a\u57f7\u884c <code>ping &lt;destination_ip&gt;<\/code>\uff0c\u89c0\u5bdf\u5e73\u5747\u5ef6\u9072\u548c\u4e1f\u5305\u60c5\u6cc1\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>curl -o \/dev\/null -s -w \"%{time_total}\\n\" &lt;url&gt;<\/code> \u6e2c\u8a66\u4e0b\u8f09\u901f\u5ea6\u548c\u7e3d\u50b3\u8f38\u6642\u9593\u3002<\/p>\n<\/li>\n<\/ul>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u5efa\u8b70\u591a\u6b21\u91cd\u8907\u6e2c\u8a66\u4ee5\u7372\u5f97\u66f4\u7a69\u5b9a\u7684\u6578\u64da\u3002\u5c07\u555f\u7528 BBR \u4e4b\u524d\u8207\u555f\u7528\u5f8c\u5f97\u5230\u7684\u7d50\u679c\u9032\u884c\u6bd4\u8f03\uff0c\u53ef\u4ee5\u76f4\u89c0\u770b\u5230\u7db2\u8def\u901f\u5ea6\u548c\u5ef6\u9072\u6539\u5584\u60c5\u6cc1\u3002<\/p>\n<\/blockquote>\n<h3>\u8abf\u6574\u7db2\u8def\u53c3\u6578\u4ee5\u7372\u53d6\u6700\u4f73\u6548\u679c<\/h3>\n<p>\u4f60\u9084\u53ef\u4ee5\u900f\u904e\u9032\u4e00\u6b65\u8abf\u6574\u7db2\u8def\u53c3\u6578\uff0c\u4f86\u5728\u9ad8\u5ef6\u9072\u7684\u570b\u969b\u8def\u7531\u4e0a\u69a8\u51fa BBR \u7684\u6700\u5927\u6548\u80fd\u6f5b\u529b\u3002\u53c3\u8003\u4e0b\u9762\u9019\u4e9b\u6b65\u9a5f\uff0c\u53ef\u4ee5\u5be6\u73fe\u66f4\u9ad8\u7684\u541e\u5410\u91cf\uff1a<\/p>\n<ol>\n<li>\n<p>\u8a08\u7b97\u983b\u5bec\u2013\u6642\u5ef6\u7a4d\uff08BDP\uff09\u3002\u9996\u5148\u4f7f\u7528 <code>ping<\/code> \u91cf\u6e2c RTT\uff0c\u7136\u5f8c\u4e58\u4ee5\u983b\u5bec\u3002\u4f8b\u5982\uff0c\u5728 100 Mbps \u9023\u7dda\u300180ms RTT \u7684\u60c5\u6cc1\u4e0b\uff0cBDP \u7d04\u70ba 1 MB\u3002\u5efa\u8b70\u5c07\u7de9\u885d\u5340\u5927\u5c0f\u8a2d\u5b9a\u70ba BDP \u7684\u5169\u500d\u4ee5\u4e0a\uff0c\u4ee5\u9810\u7559\u7a7a\u9593\u3002<\/p>\n<\/li>\n<li>\n<p>\u5957\u7528\u9069\u5408\u5ee3\u57df\u7db2\u8def\u7684 TCP \u8a2d\u5b9a\u3002\u900f\u904e\u8abf\u6574 <code>net.core.rmem_max<\/code> \u548c <code>net.core.wmem_max<\/code> \u63d0\u9ad8 Socket \u7de9\u885d\u5340\u4e0a\u9650\uff0c\u4e26\u900f\u904e <code>net.ipv4.tcp_window_scaling = 1<\/code> \u555f\u7528\u8996\u7a97\u64f4\u5c55\u3002<\/p>\n<\/li>\n<li>\n<p>\u900f\u904e\u8a2d\u5b9a <code>net.ipv4.tcp_slow_start_after_idle = 0<\/code> \u95dc\u9589\u300c\u9592\u7f6e\u5f8c\u6162\u555f\u52d5\u300d\uff0c\u907f\u514d\u9023\u7dda\u5728\u9592\u7f6e\u4e00\u6bb5\u6642\u9593\u4e4b\u5f8c\u6548\u80fd\u9a5f\u964d\u3002<\/p>\n<\/li>\n<li>\n<p>\u512a\u5316 Keepalive \u8a2d\u5b9a\uff0c\u7528\u65bc\u66f4\u5feb\u5075\u6e2c\u5931\u6548\u9023\u7dda\u3002\u53ef\u8a2d\u5b9a <code>net.ipv4.tcp_keepalive_time = 300<\/code>\u3001<code>net.ipv4.tcp_keepalive_intvl = 30<\/code> \u548c <code>net.ipv4.tcp_keepalive_probes = 10<\/code>\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>tc qdisc<\/code> \u6a21\u64ec\u5ef6\u9072\u4e26\u6e2c\u8a66\u5ee3\u57df\u7db2\u6548\u80fd\uff0c\u7136\u5f8c\u900f\u904e <code>iperf3<\/code> \u6bd4\u8f03 CUBIC \u8207 BBR \u7684\u541e\u5410\u8868\u73fe\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u5728\u4e1f\u5305\u8f03\u70ba\u660e\u986f\u7684\u5ee3\u57df\u9023\u7dda\u4e0a\uff0c\u4f60\u901a\u5e38\u6703\u770b\u5230 BBR \u76f8\u6bd4 CUBIC \u80fd\u5e36\u4f86 2\u20135 \u500d\u7684\u541e\u5410\u63d0\u5347\uff0c\u9019\u662f\u56e0\u70ba BBR \u5373\u4f7f\u5728\u5b58\u5728\u4e1f\u5305\u548c\u9ad8\u5ef6\u9072\u7684\u74b0\u5883\u4e0b\u4ecd\u80fd\u7dad\u6301\u9ad8\u6548\u80fd\u3002\u9019\u4e9b\u8a2d\u5b9a\u53ef\u4ee5\u5e6b\u52a9\u4f60\u5728\u964d\u4f4e\u4e1f\u5305\u7387\u7684\u540c\u6642\u63d0\u5347\u7db2\u8def\u541e\u5410\uff0c\u4f7f\u4f3a\u670d\u5668\u66f4\u9069\u5408\u9762\u5411\u570b\u969b\u4f7f\u7528\u8005\u7684\u696d\u52d9\u3002<\/p>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u653e\u5927 TCP \u8996\u7a97\u5927\u5c0f\uff0c\u4e26\u70ba HTTP\/2 \u7b49\u95dc\u9375\u6d41\u91cf\u8a2d\u5b9a\u66f4\u9ad8\u512a\u5148\u6b0a\uff0c\u4e5f\u6709\u52a9\u65bc\u9032\u4e00\u6b65\u63d0\u5347 Web \u61c9\u7528\u7684\u6574\u9ad4\u541e\u5410\u8207\u9ad4\u9a57\u3002<\/p>\n<\/blockquote>\n<h2>\u6545\u969c\u6392\u67e5\u8207\u81ea\u52d5\u5316<\/h2>\n<h3>Linux \u4e0a\u4f7f\u7528 BBR \u5e38\u898b\u554f\u984c<\/h3>\n<p>\u5728\u555f\u7528 BBR \u7684\u904e\u7a0b\u4e2d\uff0c\u4f60\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u554f\u984c\u3002\u4e8b\u5148\u4e86\u89e3\u9019\u4e9b\u554f\u984c\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f60\u5feb\u901f\u56de\u5fa9\u4e26\u7dad\u6301\u6700\u4f73\u6548\u80fd\u3002\u4e0b\u9762\u662f\u6700\u5e38\u898b\u7684\u5e7e\u985e\u554f\u984c\u53ca\u5c0d\u61c9\u89e3\u6c7a\u601d\u8def\uff1a<\/p>\n<ol>\n<li>\n<p><strong>\u4f47\u5217\u6392\u7a0b\u5668\uff08qdisc\uff09\u8a2d\u5b9a\u932f\u8aa4<\/strong><br \/>\u4f60\u5fc5\u9808\u5c07\u4f47\u5217\u6392\u7a0b\u5668\u8a2d\u5b9a\u70ba <code>fq<\/code>\uff0cBBR \u624d\u80fd\u5b8c\u5168\u767c\u63ee\u4f5c\u7528\u3002\u5982\u679c\u4f7f\u7528\u4e86\u5176\u4ed6\u6392\u7a0b\u6a21\u5f0f\uff0cBBR \u7684\u541e\u5410\u63d0\u5347\u53ef\u80fd\u6703\u5927\u6253\u6298\u6263\u3002\u53ef\u4ee5\u900f\u904e\u4ee5\u4e0b\u6307\u4ee4\u8a2d\u5b9a\u9810\u8a2d\u4f47\u5217\u6392\u7a0b\u5668\uff1a<\/p>\n<pre><code>sudo sysctl -w net.core.default_qdisc=fq\r\n<\/code><\/pre>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u6bcf\u6b21\u4fee\u6539\u5b8c\u8a2d\u5b9a\u5f8c\u90fd\u5efa\u8b70\u6aa2\u67e5\u76ee\u524d\u4f47\u5217\u6392\u7a0b\u5668\uff0c\u53ef\u4f7f\u7528 <code>sysctl net.core.default_qdisc<\/code> \u6838\u5be6\u3002<\/p>\n<\/blockquote>\n<\/li>\n<li>\n<p><strong>\u7de9\u885d\u5340\u4e0a\u9650\u904e\u4f4e<\/strong><br \/>\u5982\u679c\u4f60\u5e0c\u671b\u7372\u5f97\u66f4\u9ad8\u7684\u541e\u5410\u91cf\uff0c\u5c31\u9700\u8981\u653e\u5927 TCP \u7de9\u885d\u5340\u4e0a\u9650\u3002\u7de9\u885d\u5340\u904e\u5c0f\u6703\u9650\u5236 BBR \u5c0d\u8cc7\u6599\u6d41\u9032\u884c\u6700\u4f73\u5316\u7684\u80fd\u529b\u3002\u53ef\u4ee5\u900f\u904e\u5982\u4e0b sysctl \u6307\u4ee4\u8abf\u6574\u7de9\u885d\u5340\u5927\u5c0f\uff1a<\/p>\n<pre><code>sudo sysctl -w net.core.rmem_max=16777216\r\nsudo sysctl -w net.core.wmem_max=16777216\r\n<\/code><\/pre>\n<blockquote>\n<p>\u8aaa\u660e\uff1a\u66f4\u5927\u7684\u7de9\u885d\u5340\u6709\u52a9\u65bc BBR \u8655\u7406\u66f4\u591a\u8cc7\u6599\uff0c\u5f9e\u800c\u964d\u4f4e\u4e1f\u5305\u7387\u3002<\/p>\n<\/blockquote>\n<\/li>\n<li>\n<p><strong>\u7db2\u8def\u74f6\u9838\u5b58\u5728\u65bc\u5176\u4ed6\u93c8\u8def\u6216\u786c\u9ad4<\/strong><br \/>\u4f60\u9084\u9700\u8981\u6aa2\u67e5\u5be6\u9ad4\u7db2\u8def\u662f\u5426\u5b58\u5728\u74f6\u9838\u3002BBR \u4e3b\u8981\u512a\u5316 TCP \u5c64\u9762\u7684\u50b3\u8f38\uff0c\u4e26\u4e0d\u80fd\u4fee\u5fa9\u786c\u9ad4\u6216\u57fa\u790e\u5efa\u8a2d\u4e0a\u7684\u9650\u5236\u3002\u8acb\u6aa2\u67e5\u7db2\u8def\u7dda\u3001\u4ea4\u63db\u5668\u4ee5\u53ca\u4e0a\u6e38\u983b\u5bec\uff0c\u78ba\u4fdd\u4e0d\u6703\u5c0d\u4f3a\u670d\u5668\u7684\u6d41\u91cf\u5f62\u6210\u786c\u6027\u963b\u585e\u3002<\/p>\n<\/li>\n<\/ol>\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;\">\n          <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u554f\u984c<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u89e3\u6c7a\u65b9\u6848<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f47\u5217\u6392\u7a0b\u5668\u8a2d\u5b9a\u932f\u8aa4<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u4f7f\u7528 sysctl \u5c07\u9810\u8a2d qdisc \u8a2d\u5b9a\u70ba <code>fq<\/code><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u7de9\u885d\u5340\u4e0a\u9650\u904e\u4f4e<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u653e\u5927 TCP \u7de9\u885d\u5340\u4e0a\u9650<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u5176\u4ed6\u93c8\u8def\u6216\u786c\u9ad4\u51fa\u73fe\u74f6\u9838<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p>\u6aa2\u67e5\u5be6\u9ad4\u7db2\u8def\u8207\u57fa\u790e\u5efa\u8a2d<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<h3>\u81ea\u52d5\u5316 BBR \u914d\u7f6e<\/h3>\n<p>\u4f60\u53ef\u4ee5\u900f\u904e\u81ea\u52d5\u5316\u8173\u672c\u7684\u65b9\u5f0f\u914d\u7f6e BBR\uff0c\u5f9e\u800c\u7bc0\u7701\u6642\u9593\u4e26\u964d\u4f4e\u4eba\u70ba\u8a2d\u5b9a\u932f\u8aa4\u7684\u98a8\u96aa\u3002\u81ea\u52d5\u5316\u9084\u80fd\u78ba\u4fdd\u5728\u7cfb\u7d71\u91cd\u65b0\u555f\u52d5\u6216\u66f4\u65b0\u4e4b\u5f8c\uff0c\u76f8\u95dc\u8a2d\u5b9a\u4f9d\u7136\u4fdd\u6301\u4e00\u81f4\u3002\u53ef\u4ee5\u5efa\u7acb\u4e00\u500b\u8173\u672c\uff0c\u5c07\u6240\u6709\u5fc5\u9700\u7684 sysctl \u53c3\u6578\u8207\u6a21\u7d44\u8f09\u5165\u6b65\u9a5f\u7d71\u4e00\u57f7\u884c\u3002<\/p>\n<p>\u4e0b\u9762\u662f\u4e00\u500b\u7c21\u55ae\u7684 Bash \u7bc4\u4f8b\u8173\u672c\uff1a<\/p>\n<pre><code>#!\/bin\/bash\r\nsudo sysctl -w net.core.default_qdisc=fq\r\nsudo sysctl -w net.ipv4.tcp_congestion_control=bbr\r\nsudo sysctl -w net.core.rmem_max=16777216\r\nsudo sysctl -w net.core.wmem_max=16777216\r\nsudo modprobe tcp_bbr\r\n<\/code><\/pre>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u4f60\u53ef\u4ee5\u5c07\u6b64\u8173\u672c\u653e\u5728 <code>\/usr\/local\/bin\/<\/code>\uff0c\u4e26\u900f\u904e <code>cron<\/code> \u6392\u7a0b\u57f7\u884c\uff0c\u6216\u76f4\u63a5\u5c07\u76f8\u95dc\u8a2d\u5b9a\u5beb\u5165 <code>\/etc\/sysctl.d\/99-bbr.conf<\/code> \u4ee5\u5be6\u73fe\u6301\u4e45\u5316\u8a2d\u5b9a\u3002<\/p>\n<\/blockquote>\n<p>\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528 Ansible \u6216 Puppet \u7b49\u8a2d\u5b9a\u7ba1\u7406\u5de5\u5177\uff0c\u5728\u591a\u53f0\u4f3a\u670d\u5668\u4e0a\u96c6\u4e2d\u4e0b\u767c BBR \u8a2d\u5b9a\u3002\u81ea\u52d5\u5316\u4e0d\u50c5\u80fd\u7dad\u6301\u7db2\u8def\u8a2d\u5b9a\u7684\u4e00\u81f4\u6027\uff0c\u9084\u80fd\u986f\u8457\u6e1b\u5c11\u624b\u52d5\u7dad\u8b77\u5de5\u4f5c\u91cf\u3002<\/p>\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, 209);\"><\/div><\/div>\n<p>\u7576\u4f60\u5728\u9999\u6e2f CN2 \u4f3a\u670d\u5668\u4e0a\u555f\u7528 BBR \u52a0\u901f\u5f8c\uff0c\u5c07\u6703\u7372\u5f97\u66f4\u5feb\u3001\u66f4\u53ef\u9760\u7684\u7db2\u8def\u8868\u73fe\u3002\u70ba\u4e86\u6301\u7e8c\u4fdd\u6301\u6700\u4f73\u72c0\u614b\uff0c\u5efa\u8b70\u4f60\u9075\u5faa\u4ee5\u4e0b\u4f5c\u6cd5\uff1a<\/p>\n<ul>\n<li>\n<p>\u9069\u5ea6\u653e\u5927\u7db2\u8def\u7de9\u885d\u5340\uff0c\u4e26\u555f\u7528 TCP \u8996\u7a97\u64f4\u5c55\u529f\u80fd\u3002<\/p>\n<\/li>\n<li>\n<p>\u4f7f\u7528 <code>sudo sysctl -p<\/code> \u6216 <code>sudo sysctl --system<\/code> \u8b93\u8a2d\u5b9a\u5373\u6642\u751f\u6548\u3002<\/p>\n<\/li>\n<li>\n<p>\u7528\u771f\u5be6\u696d\u52d9\u6d41\u91cf\u8207\u6e2c\u8a66\u5de5\u5177\u5c0d BBR \u6548\u679c\u9032\u884c\u9a57\u8b49\u8207\u76e3\u63a7\u3002<\/p>\n<\/li>\n<li>\n<p>\u5b9a\u671f\u66f4\u65b0 Linux \u7cfb\u7d71\u8207\u6838\u5fc3\uff0c\u4ee5\u4fdd\u6301\u76f8\u5bb9\u6027\u8207\u5b89\u5168\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u53ea\u8981\u6301\u7e8c\u76e3\u63a7\u7db2\u8def\u8868\u73fe\u4e26\u53ca\u6642\u6392\u67e5\u554f\u984c\uff0c\u4f60\u5c31\u80fd\u9577\u671f\u4fdd\u6301 BBR \u5e36\u4f86\u7684\u6548\u80fd\u512a\u52e2\u3002<\/p>\n<h2>\u5e38\u898b\u554f\u984c\uff08FAQ\uff09<\/h2>\n<h3>\u662f\u5426\u53ef\u4ee5\u5728\u4efb\u610f Linux \u767c\u884c\u7248\u4e0a\u555f\u7528 BBR\uff1f<\/h3>\n<p>\u53ea\u8981\u6838\u5fc3\u7248\u672c\u4e0d\u4f4e\u65bc 4.9\uff0c\u4f60\u5c31\u53ef\u4ee5\u5728\u591a\u6578\u73fe\u4ee3 Linux \u767c\u884c\u7248\u4e0a\u555f\u7528 BBR\u3002\u4f60\u53ef\u4ee5\u900f\u904e <code>uname -r<\/code> \u6aa2\u67e5\u76f8\u5bb9\u6027\uff0c\u5982\u6709\u9700\u8981\u5247\u5148\u5347\u7d1a\u6838\u5fc3\u3002<\/p>\n<h3>BBR \u662f\u5426\u80fd\u63d0\u5347\u6240\u6709\u985e\u578b\u7db2\u8def\u7684\u6548\u80fd\uff1f<\/h3>\n<p>BBR \u5728\u9ad8\u6642\u5ef6\u3001\u9ad8\u983b\u5bec\u9023\u7dda\u4e0a\u6548\u679c\u6700\u70ba\u986f\u8457\uff1b\u5728\u672c\u5730\u3001\u4f4e\u5ef6\u9072\u7db2\u8def\u4e2d\uff0c\u6548\u80fd\u63d0\u5347\u53ef\u80fd\u4e26\u4e0d\u5341\u5206\u660e\u986f\u3002<\/p>\n<blockquote>\n<p>\u63d0\u793a\uff1a\u5efa\u8b70\u5728\u555f\u7528 BBR \u524d\u5f8c\u5206\u5225\u6e2c\u8a66\u7db2\u8def\uff0c\u4ee5\u5b9a\u91cf\u8a55\u4f30\u6548\u80fd\u5dee\u7570\u3002<\/p>\n<\/blockquote>\n<h3>\u5982\u4f55\u6aa2\u67e5 BBR \u662f\u5426\u5df2\u7d93\u555f\u7528\uff1f<\/h3>\n<p>\u4f60\u53ef\u4ee5\u57f7\u884c\u5982\u4e0b\u6307\u4ee4\u9032\u884c\u9a57\u8b49\uff1a<\/p>\n<pre><code>sysctl net.ipv4.tcp_congestion_control\r\n<\/code><\/pre>\n<p>\u5982\u679c\u8f38\u51fa\u4e2d\u986f\u793a <code>bbr<\/code>\uff0c\u5247\u8868\u793a BBR \u5df2\u6210\u529f\u555f\u7528\u3002<\/p>\n<h3>BBR \u8a2d\u5b9a\u662f\u5426\u6703\u5728\u91cd\u65b0\u555f\u52d5\u5f8c\u4fdd\u6301\u6709\u6548\uff1f<\/h3>\n<p>\u5982\u679c\u4f60\u5df2\u5c07 BBR \u76f8\u95dc\u8a2d\u5b9a\u5beb\u5165 <code>\/etc\/sysctl.d\/99-bbr.conf<\/code>\uff0c\u90a3\u9ebc\u9019\u4e9b\u8a2d\u5b9a\u6703\u5728\u6bcf\u6b21\u7cfb\u7d71\u555f\u52d5\u5f8c\u81ea\u52d5\u8f09\u5165\u4e26\u751f\u6548\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;\">\n          <\/colgroup>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8a2d\u5b9a\u9805<\/p>\n<\/th>\n<th colspan=\"1\" rowspan=\"1\">\n<p>\u8a2d\u5b9a\u6a94\u4f4d\u7f6e<\/p>\n<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">\n<p>BBR \u8a2d\u5b9a<\/p>\n<\/td>\n<td colspan=\"1\" rowspan=\"1\">\n<p><code>\/etc\/sysctl.d\/99-bbr.conf<\/code><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<h3>\u662f\u5426\u53ef\u4ee5\u5728\u591a\u53f0\u4f3a\u670d\u5668\u4e0a\u81ea\u52d5\u5316\u90e8\u7f72 BBR\uff1f<\/h3>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528\u8173\u672c\u6216 Ansible \u7b49\u5de5\u5177\u5728\u591a\u53f0\u4f3a\u670d\u5668\u4e0a\u81ea\u52d5\u5316\u90e8\u7f72 BBR \u8a2d\u5b9a\uff0c\u9019\u6a23\u53ef\u4ee5\u7bc0\u7701\u5927\u91cf\u6642\u9593\u4e26\u78ba\u4fdd\u8a2d\u5b9a\u4e00\u81f4\u3002<\/p>\n<blockquote>\n<p>\u6ce8\u610f\uff1a\u81ea\u52d5\u5316\u90e8\u7f72\u4e0d\u50c5\u80fd\u6e1b\u5c11\u624b\u52d5\u64cd\u4f5c\u5931\u8aa4\uff0c\u9084\u80fd\u986f\u8457\u52a0\u5feb\u4e0a\u7dda\u548c\u64f4\u5bb9\u901f\u5ea6\u3002<\/p>\n<\/blockquote><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u679c\u4f60\u60f3\u63d0\u5347 \u9999\u6e2f CN2 \u4f3a\u670d\u5668\u7684\u7db2\u8def\u541e\u5410\u91cf\uff0cBBR \u52a0\u901f\u662f\u4e00\u7a2e\u73fe\u4ee3\u5316\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f60\u7372\u5f97\u66f4\u9ad8\u901f\u5ea6\u548c\u66f4 [&#8230;]<\/p>\n<p><a class=\"btn btn-secondary understrap-read-more-link\" href=\"https:\/\/www.varidata.com\/zh-tw\/knowledge-tc\/configure-bbr-to-improve-the-throughput-of-hk-cn2-servers\/\">Read More&#8230;<\/a><\/p>\n","protected":false},"author":11,"featured_media":33408,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[268],"tags":[],"class_list":["post-33411","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-tc"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u5982\u4f55\u914d\u7f6e BBR \u52a0\u901f\u4ee5\u63d0\u5347\u9999\u6e2f CN2 \u4f3a\u670d\u5668\u541e\u5410\u91cf<\/title>\n<meta name=\"description\" content=\"\u5728\u9999\u6e2f CN2 \u4f3a\u670d\u5668\u4e0a\u914d\u7f6e BBR \u52a0\u901f\uff0c\u4ee5\u63d0\u5347\u541e\u5410\u91cf\u4e26\u964d\u4f4e\u5ef6\u9072\u3002\u6309\u7167\u5206\u6b65 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