{"id":54046,"date":"2025-02-18T11:01:18","date_gmt":"2025-02-18T03:01:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/54046\/"},"modified":"2025-02-18T11:01:18","modified_gmt":"2025-02-18T03:01:18","slug":"%e5%85%a8%e9%9d%a2%e8%a7%a3%e6%9e%90linode-bbr%ef%bc%9a%e9%85%8d%e7%bd%ae%e3%80%81%e4%bc%98%e5%8a%bf%e4%b8%8e%e5%b8%b8%e8%a7%81%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/54046\/","title":{"rendered":"\u5168\u9762\u89e3\u6790Linode BBR\uff1a\u914d\u7f6e\u3001\u4f18\u52bf\u4e0e\u5e38\u89c1\u95ee\u9898"},"content":{"rendered":"<h2>\u4ec0\u4e48\u662fLinode BBR\uff1f<\/h2>\n<p><em>Linode BBR<\/em>\uff08Bottleneck Bandwidth and Round-trip propagation time\uff09\u662fGoogle\u5f00\u53d1\u7684\u4e00\u79cdTCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff0c\u65e8\u5728\u63d0\u5347\u7f51\u7edc\u7684\u6027\u80fd\u548c\u6548\u7387\u3002BBR\u901a\u8fc7\u51c6\u786e\u9884\u6d4b\u7f51\u7edc\u72b6\u51b5\uff0c\u52a8\u6001\u8c03\u6574TCP\u7a97\u53e3\u5927\u5c0f\uff0c\u4ece\u800c\u51cf\u5c11\u5ef6\u8fdf\u548c\u63d0\u9ad8\u5e26\u5bbd\u5229\u7528\u7387\u3002\u5bf9\u4e8eLinode\u7528\u6237\u800c\u8a00\uff0c\u5f00\u542fBBR\u53ef\u4ee5\u6709\u6548\u6539\u5584\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n<h2>Linode BBR\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>BBR\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u673a\u5236\u6765\u4f18\u5316\u7f51\u7edc\u6027\u80fd\uff1a<\/p>\n<ul>\n<li><strong>\u52a8\u6001\u8c03\u6574\u7a97\u53e3\u5927\u5c0f<\/strong>\uff1aBBR\u6839\u636e\u5b9e\u65f6\u7f51\u7edc\u60c5\u51b5\uff0c\u81ea\u52a8\u8c03\u6574TCP\u7a97\u53e3\uff0c\u786e\u4fdd\u6570\u636e\u5305\u7684\u5feb\u901f\u4f20\u8f93\u3002<\/li>\n<li><strong>\u4f30\u7b97\u7f51\u7edc\u5ef6\u8fdf<\/strong>\uff1aBBR\u4e0d\u65ad\u6d4b\u91cf\u7f51\u7edc\u7684RTT\uff08Round-trip Time\uff09\uff0c\u5e76\u4f7f\u7528\u8fd9\u4e9b\u6570\u636e\u6765\u5224\u65ad\u5f53\u524d\u7684\u7f51\u7edc\u72b6\u51b5\u3002<\/li>\n<li><strong>\u907f\u514d\u7f51\u7edc\u62e5\u5835<\/strong>\uff1a\u901a\u8fc7\u5b9e\u65f6\u76d1\u63a7\u6570\u636e\u5305\u7684\u4f20\u8f93\u72b6\u6001\uff0cBBR\u80fd\u591f\u53ca\u65f6\u8c03\u6574\u53d1\u9001\u901f\u7387\uff0c\u4ece\u800c\u51cf\u5c11\u4e22\u5305\u73b0\u8c61\u3002<\/li>\n<\/ul>\n<h2>\u4e3a\u4ec0\u4e48\u9009\u62e9Linode BBR\uff1f<\/h2>\n<p>\u9009\u62e9Linode BBR\u7684\u539f\u56e0\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u7f51\u7edc\u901f\u5ea6<\/strong>\uff1aBBR\u663e\u8457\u964d\u4f4e\u5ef6\u8fdf\uff0c\u63d0\u5347\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u3002<\/li>\n<li><strong>\u4f18\u5316\u5e26\u5bbd\u5229\u7528<\/strong>\uff1aBBR\u80fd\u591f\u5728\u9ad8\u5e26\u5bbd\u5ef6\u8fdf\u4ea7\u54c1\u4e0a\u66f4\u6709\u6548\u5730\u5229\u7528\u5e26\u5bbd\u3002<\/li>\n<li><strong>\u7a33\u5b9a\u6027<\/strong>\uff1aBBR\u901a\u8fc7\u667a\u80fd\u7684\u7b97\u6cd5\u907f\u514d\u7f51\u7edc\u62e5\u5835\uff0c\u786e\u4fdd\u7a33\u5b9a\u7684\u6570\u636e\u4f20\u8f93\u3002<\/li>\n<\/ul>\n<h2>\u5982\u4f55\u5728Linode\u4e0a\u542f\u7528BBR<\/h2>\n<p>\u4ee5\u4e0b\u662f\u542f\u7528Linode BBR\u7684\u6b65\u9aa4\uff1a<\/p>\n<h3>\u6b65\u9aa4\u4e00\uff1a\u8fde\u63a5\u5230\u4f60\u7684Linode\u5b9e\u4f8b<\/h3>\n<p>\u4f7f\u7528SSH\u8fde\u63a5\u5230\u4f60\u7684Linode\u5b9e\u4f8b\u3002\u547d\u4ee4\u5982\u4e0b\uff1a bash ssh username@your-linode-ip<\/p>\n<h3>\u6b65\u9aa4\u4e8c\uff1a\u68c0\u67e5\u5185\u6838\u7248\u672c<\/h3>\n<p>BBR\u9700\u8981Linux 4.9\u53ca\u4ee5\u4e0a\u7684\u5185\u6838\u7248\u672c\u3002\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u4f60\u7684\u5185\u6838\u7248\u672c\uff1a bash echo $(uname -r)<\/p>\n<h3>\u6b65\u9aa4\u4e09\uff1a\u542f\u7528BBR<\/h3>\n<p>\u5728\u7ec8\u7aef\u4e2d\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ee5\u542f\u7528BBR\uff1a bash sudo modprobe bbr<\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u7f16\u8f91<code>\/etc\/sysctl.conf<\/code>\u6587\u4ef6\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a bash net.core.default_qdisc=fq net.ipv4.tcp_congestion_control=bbr<\/p>\n<h3>\u6b65\u9aa4\u56db\uff1a\u5e94\u7528\u66f4\u6539<\/h3>\n<p>\u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u4f7f\u66f4\u6539\u751f\u6548\uff1a bash sudo sysctl -p<\/p>\n<h3>\u6b65\u9aa4\u4e94\uff1a\u9a8c\u8bc1BBR\u662f\u5426\u542f\u7528<\/h3>\n<p>\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u9a8c\u8bc1BBR\u662f\u5426\u5df2\u542f\u7528\uff1a bash sysctl net.ipv4.tcp_congestion_control<\/p>\n<p>\u5982\u679c\u8fd4\u56de\u7ed3\u679c\u4e3a<code>bbr<\/code>\uff0c\u5219\u8868\u793a\u6210\u529f\u542f\u7528BBR\u3002<\/p>\n<h2>Linode BBR\u7684\u4f18\u7f3a\u70b9<\/h2>\n<h3>\u4f18\u70b9<\/h3>\n<ul>\n<li><strong>\u663e\u8457\u964d\u4f4e\u5ef6\u8fdf<\/strong>\uff1a\u7528\u6237\u666e\u904d\u62a5\u544a\u542f\u7528BBR\u540e\u5ef6\u8fdf\u660e\u663e\u964d\u4f4e\u3002<\/li>\n<li><strong>\u5e26\u5bbd\u5229\u7528\u7387\u63d0\u9ad8<\/strong>\uff1aBBR\u80fd\u591f\u66f4\u597d\u5730\u5229\u7528\u7f51\u7edc\u5e26\u5bbd\uff0c\u5c24\u5176\u5728\u9ad8\u5ef6\u8fdf\u73af\u5883\u4e0b\u3002<\/li>\n<li><strong>\u964d\u4f4e\u4e22\u5305\u7387<\/strong>\uff1a\u52a8\u6001\u8c03\u6574\u7684\u7279\u6027\u6709\u6548\u964d\u4f4e\u4e86\u7f51\u7edc\u4e22\u5305\u73b0\u8c61\u3002<\/li>\n<\/ul>\n<h3>\u7f3a\u70b9<\/h3>\n<ul>\n<li><strong>\u8d44\u6e90\u6d88\u8017<\/strong>\uff1a\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0cBBR\u53ef\u80fd\u4f1a\u589e\u52a0CPU\u8d44\u6e90\u6d88\u8017\u3002<\/li>\n<li><strong>\u517c\u5bb9\u6027\u95ee\u9898<\/strong>\uff1a\u67d0\u4e9b\u7f51\u7edc\u8bbe\u5907\u548c\u670d\u52a1\u53ef\u80fd\u4e0d\u5b8c\u5168\u517c\u5bb9BBR\uff0c\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n<h2>\u5e38\u89c1\u95ee\u9898\u89e3\u7b54\uff08FAQ\uff09<\/h2>\n<h3>1. BBR\u662f\u5426\u9002\u5408\u6240\u6709\u7c7b\u578b\u7684\u5e94\u7528\uff1f<\/h3>\n<p>BBR\u7279\u522b\u9002\u5408\u5ef6\u8fdf\u654f\u611f\u7684\u5e94\u7528\uff0c\u5982\u89c6\u9891\u6d41\u548c\u5728\u7ebf\u6e38\u620f\uff0c\u4f46\u5bf9\u4e8e\u67d0\u4e9b\u5c0f\u6570\u636e\u5305\u4f20\u8f93\u5e94\u7528\uff0c\u5176\u6548\u679c\u53ef\u80fd\u4e0d\u660e\u663e\u3002<\/p>\n<h3>2. \u542f\u7528BBR\u540e\u662f\u5426\u9700\u8981\u91cd\u542f\u670d\u52a1\u5668\uff1f<\/h3>\n<p>\u4e0d\u9700\u8981\uff0c\u60a8\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\u76f4\u63a5\u542f\u7528BBR\u800c\u65e0\u9700\u91cd\u542f\u670d\u52a1\u5668\u3002<\/p>\n<h3>3. \u5982\u4f55\u5224\u65adBBR\u662f\u5426\u751f\u6548\uff1f<\/h3>\n<p>\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4<code>sysctl net.ipv4.tcp_congestion_control<\/code>\u67e5\u770b\u5f53\u524d\u7684TCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u662f\u5426\u4e3a<code>bbr<\/code>\u3002<\/p>\n<h3>4. BBR\u4f1a\u5f71\u54cd\u7f51\u7edc\u5b89\u5168\u5417\uff1f<\/h3>\n<p>BBR\u672c\u8eab\u4e0d\u4f1a\u76f4\u63a5\u5f71\u54cd\u7f51\u7edc\u5b89\u5168\uff0c\u4f46\u5efa\u8bae\u5b9a\u671f\u68c0\u67e5\u548c\u66f4\u65b0\u670d\u52a1\u5668\u7684\u5b89\u5168\u914d\u7f6e\u4ee5\u9632\u8303\u6f5c\u5728\u5a01\u80c1\u3002<\/p>\n<h3>5. \u5982\u4f55\u7981\u7528BBR\uff1f<\/h3>\n<p>\u5982\u679c\u9700\u8981\u7981\u7528BBR\uff0c\u53ef\u4ee5\u5728<code>\/etc\/sysctl.conf<\/code>\u6587\u4ef6\u4e2d\u5220\u9664\u76f8\u5173\u7684\u884c\uff0c\u5e76\u8fd0\u884c<code>sudo sysctl -p<\/code>\u4ee5\u5e94\u7528\u66f4\u6539\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u603b\u4e4b\uff0cLinode BBR\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u80fd\u591f\u663e\u8457\u63d0\u9ad8\u7f51\u7edc\u6027\u80fd\uff0c\u5c24\u5176\u5728\u9ad8\u5ef6\u8fdf\u73af\u5883\u4e0b\u3002\u901a\u8fc7\u7b80\u5355\u7684\u914d\u7f6e\u6b65\u9aa4\uff0c\u7528\u6237\u53ef\u4ee5\u8f7b\u677e\u4eab\u53d7\u5230BBR\u5e26\u6765\u7684\u597d\u5904\u3002\u7136\u800c\uff0c\u5efa\u8bae\u5728\u542f\u7528BBR\u540e\u76d1\u63a7\u7f51\u7edc\u6027\u80fd\uff0c\u5e76\u6839\u636e\u5b9e\u9645\u9700\u6c42\u8c03\u6574\u8bbe\u7f6e\u3002\u5e0c\u671b\u672c\u6307\u5357\u80fd\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528Linode BBR\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ec0\u4e48\u662fLinode BBR\uff1f Linode BBR\uff08Bottleneck Bandwidth and Round-trip propagation time\uff09\u662fGoogle\u5f00\u53d1\u7684\u4e00\u79cdTCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\uff0c\u65e8\u5728\u63d0\u5347\u7f51\u7edc\u7684\u6027\u80fd\u548c\u6548\u7387\u3002BBR\u901a\u8fc7\u51c6\u786e\u9884\u6d4b\u7f51\u7edc\u72b6\u51b5\uff0c\u52a8\u6001\u8c03\u6574TCP\u7a97\u53e3\u5927\u5c0f\uff0c\u4ece\u800c\u51cf\u5c11\u5ef6\u8fdf\u548c\u63d0\u9ad8\u5e26\u5bbd\u5229\u7528\u7387\u3002\u5bf9\u4e8eLinode\u7528\u6237\u800c\u8a00\uff0c\u5f00\u542fBBR\u53ef\u4ee5\u6709\u6548\u6539\u5584\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u548c\u7a33\u5b9a\u6027\u3002 Linode BBR\u7684\u5de5\u4f5c\u539f\u7406 BBR\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u673a\u5236\u6765\u4f18\u5316\u7f51\u7edc\u6027\u80fd\uff1a \u52a8\u6001\u8c03\u6574\u7a97\u53e3\u5927\u5c0f\uff1aBBR\u6839\u636e\u5b9e\u65f6\u7f51\u7edc\u60c5\u51b5\uff0c\u81ea\u52a8\u8c03\u6574TCP\u7a97\u53e3\uff0c\u786e\u4fdd\u6570\u636e\u5305\u7684\u5feb\u901f\u4f20\u8f93\u3002 \u4f30\u7b97\u7f51\u7edc\u5ef6\u8fdf\uff1aBBR\u4e0d\u65ad\u6d4b\u91cf\u7f51\u7edc\u7684RTT\uff08Round-trip Time\uff09\uff0c\u5e76\u4f7f\u7528\u8fd9\u4e9b\u6570\u636e\u6765\u5224\u65ad\u5f53\u524d\u7684\u7f51\u7edc\u72b6\u51b5\u3002 \u907f\u514d\u7f51\u7edc\u62e5\u5835\uff1a\u901a\u8fc7\u5b9e\u65f6\u76d1\u63a7\u6570\u636e\u5305\u7684\u4f20\u8f93\u72b6\u6001\uff0cBBR\u80fd\u591f\u53ca\u65f6\u8c03\u6574\u53d1\u9001\u901f\u7387\uff0c\u4ece\u800c\u51cf\u5c11\u4e22\u5305\u73b0\u8c61\u3002 \u4e3a\u4ec0\u4e48\u9009\u62e9Linode BBR\uff1f \u9009\u62e9Linode BBR\u7684\u539f\u56e0\u5305\u62ec\uff1a \u63d0\u9ad8\u7f51\u7edc\u901f\u5ea6\uff1aBBR\u663e\u8457\u964d\u4f4e\u5ef6\u8fdf\uff0c\u63d0\u5347\u6570\u636e\u4f20\u8f93\u901f\u5ea6\u3002 \u4f18\u5316\u5e26\u5bbd\u5229\u7528\uff1aBBR\u80fd\u591f\u5728\u9ad8\u5e26\u5bbd\u5ef6\u8fdf\u4ea7\u54c1\u4e0a\u66f4\u6709\u6548\u5730\u5229\u7528\u5e26\u5bbd\u3002 \u7a33\u5b9a\u6027\uff1aBBR\u901a\u8fc7\u667a\u80fd\u7684\u7b97\u6cd5\u907f\u514d\u7f51\u7edc\u62e5\u5835\uff0c\u786e\u4fdd\u7a33\u5b9a\u7684\u6570\u636e\u4f20\u8f93\u3002 \u5982\u4f55\u5728Linode\u4e0a\u542f\u7528BBR \u4ee5\u4e0b\u662f\u542f\u7528Linode BBR\u7684\u6b65\u9aa4\uff1a \u6b65\u9aa4\u4e00\uff1a\u8fde\u63a5\u5230\u4f60\u7684Linode\u5b9e\u4f8b \u4f7f\u7528SSH\u8fde\u63a5\u5230\u4f60\u7684Linode\u5b9e\u4f8b\u3002\u547d\u4ee4\u5982\u4e0b\uff1a bash ssh username@your-linode-ip \u6b65\u9aa4\u4e8c\uff1a\u68c0\u67e5\u5185\u6838\u7248\u672c BBR\u9700\u8981Linux 4.9\u53ca\u4ee5\u4e0a\u7684\u5185\u6838\u7248\u672c\u3002\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u68c0\u67e5\u4f60\u7684\u5185\u6838\u7248\u672c\uff1a bash echo $(uname -r) \u6b65\u9aa4\u4e09\uff1a\u542f\u7528BBR \u5728\u7ec8\u7aef\u4e2d\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u4ee5\u542f\u7528BBR\uff1a bash sudo modprobe bbr \u63a5\u4e0b\u6765\uff0c\u7f16\u8f91\/etc\/sysctl.conf\u6587\u4ef6\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a bash net.core.default_qdisc=fq net.ipv4.tcp_congestion_control=bbr \u6b65\u9aa4\u56db\uff1a\u5e94\u7528\u66f4\u6539 \u8fd0\u884c\u4ee5\u4e0b\u547d\u4ee4\u4f7f\u66f4\u6539\u751f\u6548\uff1a bash sudo sysctl -p \u6b65\u9aa4\u4e94\uff1a\u9a8c\u8bc1BBR\u662f\u5426\u542f\u7528 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-54046","post","type-post","status-publish","format-standard","hentry","category-vpn"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/54046","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=54046"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/54046\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=54046"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=54046"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=54046"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}