{"id":780,"date":"2021-12-14T23:26:00","date_gmt":"2021-12-14T15:26:00","guid":{"rendered":"https:\/\/blog.cauchyschwarz.com\/?p=780"},"modified":"2022-12-06T23:01:01","modified_gmt":"2022-12-06T15:01:01","slug":"linux-tc%e5%91%bd%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/blog.cauchyschwarz.com\/?p=780","title":{"rendered":"Linux tc\u547d\u4ee4"},"content":{"rendered":"\n<p>\u56e0\u4e3a\u5de5\u4f5c\u4e2d\u6d4b\u8bd5TCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u7684\u9700\u8981\u800c\u63a5\u89e6\u4e86<code>tc<\/code>\u547d\u4ee4\uff0c\u56e0\u6b64\u7cfb\u7edf\u5b66\u4e60\u4e00\u4e0b\u5173\u4e8e\u8fd9\u4e2a\u547d\u4ee4\u7684\u4e1c\u897f\u3002<br>\u5173\u4e8e<code>tc<\/code>\u7684\u6bd4\u8f83\u6743\u5a01\u7684\u8d44\u6599\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>man tc<\/code><\/li>\n\n\n\n<li><a href=\"https:\/\/lartc.org\/\">https:\/\/lartc.org\/<\/a><\/li>\n<\/ul>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69e0eabe40278\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69e0eabe40278\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5\" >\u57fa\u672c\u6982\u5ff5<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#qdisc\" >qdisc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#class\" >class<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#filter\" >filter<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#tc%E5%91%BD%E4%BB%A4%E5%8F%AF%E4%BB%A5%E5%AE%9E%E7%8E%B0%E5%93%AA%E4%BA%9B%E7%BD%91%E7%BB%9C%E6%B5%81%E9%87%8F%E6%8E%A7%E5%88%B6%E5%8A%9F%E8%83%BD\" >tc\u547d\u4ee4\u53ef\u4ee5\u5b9e\u73b0\u54ea\u4e9b\u7f51\u7edc\u6d41\u91cf\u63a7\u5236\u529f\u80fd<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#%E5%AE%9E%E7%94%A8%E4%BE%8B%E5%AD%90\" >\u5b9e\u7528\u4f8b\u5b50<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#%E9%80%9A%E8%BF%87tc%E8%AE%BE%E7%BD%AE%E5%AF%B9%E7%BD%91%E5%8D%A1%E5%85%A5%E5%8F%A3%E6%B5%81%E9%87%8F%E8%BF%9B%E8%A1%8C%E6%95%B4%E5%BD%A2\" >\u901a\u8fc7tc\u8bbe\u7f6e\u5bf9\u7f51\u5361\u5165\u53e3\u6d41\u91cf\u8fdb\u884c\u6574\u5f62<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#1traffic_policing\" >1.traffic policing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#2traffic_shaping\" >2.traffic shaping<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=780\/#%E5%8F%82%E8%80%83%E6%96%87%E6%A1%A3\" >\u53c2\u8003\u6587\u6863<\/a><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\" id=\"%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5\"><span class=\"ez-toc-section\" id=\"%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5\"><\/span>\u57fa\u672c\u6982\u5ff5<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"qdisc\"><span class=\"ez-toc-section\" id=\"qdisc\"><\/span>qdisc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5982manual\u4e2d\u6240\u8bf4\uff0c\u6bcf\u4e2a\u7f51\u53e3\u90fd\u6709\u4e00\u4e2a<em>root qdisc<\/em>\uff0c\u7528\u6765\u63a7\u5236\u5982\u4f55\u53d1\u5305\u5230\u5916\u9762\u7684\u7f51\u7edc\u4e0a\u53bb\u3002<em>qidsc<\/em>\u662f<em>queueing discipline<\/em>\u7684\u7f29\u5199\uff0c\u6bcf\u4e2a\u7f51\u53e3\u90fd\u6709\u4e00\u4e2a\u961f\u5217\uff0c\u5185\u6838\u8981\u53d1\u5305\u65f6\u5148\u628a\u5305\u653e\u5230\u8fd9\u4e2a\u961f\u5217\u91cc\u9762\uff0c\u7136\u540e\u518d\u4ece\u961f\u5217\u91cc\u53d6\u51fa\u5305\u8fdb\u884c\u53d1\u9001\uff0c\u8fd9\u4e2a\u961f\u5217\u4ee5\u53ca\u5165\u961f\u51fa\u961f\u7684\u89c4\u5219\u5408\u5728\u4e00\u8d77\u5c31\u662f<em>qdisc<\/em>\u7684\u804c\u8d23\u6240\u5728\u4e86\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"class\"><span class=\"ez-toc-section\" id=\"class\"><\/span>class<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><em>qdisc<\/em>\u5185\u90e8\u53ef\u4ee5\u4e0d\u662f\u4e00\u4e2a\u961f\u5217\uff0c\u800c\u662f\u591a\u4e2a<em>class<\/em>\uff0c\u6bcf\u4e2a<em>class<\/em>\u5305\u542b\u4e86\u4e00\u4e2a<em>leaf qdisc<\/em>\uff0c\u5305\u8fdb\u5165<em>qdisc<\/em>\u7684\u65f6\u5019\u88ab\u5206\u914d\u5230\u5176\u4e2d\u7684\u4e00\u4e2a<em>class<\/em>\u4e5f\u5c31\u662f\u8fdb\u5165\u5230\u8fd9\u4e2a<em>class<\/em>\u8fde\u7740\u7684<em>leaf qdisc<\/em>\u3002\u7136\u540e\u8fd9\u4e2a<em>leaf qdisc<\/em>\u53ef\u4ee5\u7ee7\u7eed\u5957\u5a03\uff0c\u5185\u90e8\u7ee7\u7eed\u5206\u6210\u591a\u4e2a<em>class<\/em>\u3002\u8fd9\u6837\u5c31\u5f62\u6210\u4e86\u4e00\u9897\u6811\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"filter\"><span class=\"ez-toc-section\" id=\"filter\"><\/span>filter<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><em>filter<\/em>\u7528\u6765\u51b3\u5b9a\u5305\u8fdb\u5165<em>qdisc<\/em>\u5185\u90e8\u7684\u54ea\u4e00\u4e2a<em>class<\/em>\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"tc%E5%91%BD%E4%BB%A4%E5%8F%AF%E4%BB%A5%E5%AE%9E%E7%8E%B0%E5%93%AA%E4%BA%9B%E7%BD%91%E7%BB%9C%E6%B5%81%E9%87%8F%E6%8E%A7%E5%88%B6%E5%8A%9F%E8%83%BD\"><span class=\"ez-toc-section\" id=\"tc%E5%91%BD%E4%BB%A4%E5%8F%AF%E4%BB%A5%E5%AE%9E%E7%8E%B0%E5%93%AA%E4%BA%9B%E7%BD%91%E7%BB%9C%E6%B5%81%E9%87%8F%E6%8E%A7%E5%88%B6%E5%8A%9F%E8%83%BD\"><\/span><code>tc<\/code>\u547d\u4ee4\u53ef\u4ee5\u5b9e\u73b0\u54ea\u4e9b\u7f51\u7edc\u6d41\u91cf\u63a7\u5236\u529f\u80fd<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SHAPING<br>\u53ef\u4ee5\u7406\u89e3\u4e3a\u901f\u7387\u63a7\u5236\uff0c\u6d41\u91cf\u5e73\u6ed1\u8fd9\u7c7b\u529f\u80fd\u3002<\/li>\n\n\n\n<li>SCHEDULING \u53ef\u4ee5\u7406\u89e3\u4e3a\u80fd\u591f\u540c\u65f6\u7167\u987e\u4f20\u8f93\u6587\u4ef6\u548c\u4ea4\u4e92\u5e94\u7528\u7684\u7f51\u7edc\u9700\u6c42\uff0c\u5176\u5b9e\u5c31\u662f\u6839\u636e\u6d41\u91cf\u7684\u4e0d\u540c\u9700\u6c42\u6309\u7167\u4e0d\u540c\u7684\u7b56\u7565\u8fdb\u884c\u53d1\u9001\u3002<\/li>\n\n\n\n<li>POLICING<br>\u5904\u7406\u5165\u53e3\u6d41\u91cf\u3002<\/li>\n\n\n\n<li>DROPPING \u8bbe\u7f6e\u4e22\u5305\uff0c\u51fa\u53e3\u5165\u53e3\u90fd\u53ef\u4ee5\u3002<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"%E5%AE%9E%E7%94%A8%E4%BE%8B%E5%AD%90\"><span class=\"ez-toc-section\" id=\"%E5%AE%9E%E7%94%A8%E4%BE%8B%E5%AD%90\"><\/span>\u5b9e\u7528\u4f8b\u5b50<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%80%9A%E8%BF%87tc%E8%AE%BE%E7%BD%AE%E5%AF%B9%E7%BD%91%E5%8D%A1%E5%85%A5%E5%8F%A3%E6%B5%81%E9%87%8F%E8%BF%9B%E8%A1%8C%E6%95%B4%E5%BD%A2\"><\/span>\u901a\u8fc7tc\u8bbe\u7f6e\u5bf9\u7f51\u5361\u5165\u53e3\u6d41\u91cf\u8fdb\u884c\u6574\u5f62<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u6709\u4e24\u79cd\u65b9\u6848\uff1a <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1traffic_policing\"><\/span>1.traffic policing<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u901a\u8fc7\u5bf9ingress\u8fd9\u4e2a\u7279\u6b8a\u7684qdisc\u5e94\u7528filter\u8fdb\u884c\u6574\u5f62\uff0c\u4e0d\u8fc7\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u80fd\u5b9e\u73b0\u6a21\u62df\u5ef6\u65f6\uff1b<br>\u5728<code>tc-police<\/code>\u7684manual\u79cd\uff0c\u6709\u4e00\u4e2a\u901a\u8fc7<em>filter<\/em>\u5bf9\u5165\u53e3\u6d41\u91cf\u8fdb\u884c\u9650\u901f\u7684\u4f8b\u5b50\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">tc qdisc add dev eth0 handle ffff: ingress\ntc filter add dev eth0 parent ffff: u32 \\\n   match u32 0 0 \\\n   police rate 1mbit burst 100k\n<\/code><\/pre>\n\n\n\n<p>\u8fd9\u4e2a\u65b9\u6cd5\u7684\u53e6\u4e00\u4e2a\u7f3a\u70b9\u662f\u5728Android\u4e0a\u5f97\u4e0d\u5230\u652f\u6301\uff0c\u81f3\u5c11\u5728\u5c0f\u7c735\u4e0a\u7684\u5b9e\u9a8c\u7ed3\u679c\u662f\u4e0d\u884c\u7684\u3002 <\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2traffic_shaping\"><\/span>2.traffic shaping<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u628a\u5165\u53e3\u6d41\u91cf\u5bfc\u5165\u5230ifb0(\u4e5f\u53ef\u4ee5\u662fifb1,ifb2,\u603b\u4e4b\u770b\u81ea\u5df1\u8981\u5bf9\u591a\u5c11\u4e2a\u7f51\u53e3\u7684\u5165\u53e3\u6d41\u91cf\u8fdb\u884c\u6574\u5f62\u4e86)\uff0c\u7136\u540e\u518d\u5bf9ifb0\u7684\u51fa\u53e3\u6d41\u91cf\u8fdb\u884c\u4e00\u822c\u7684\u6574\u5f62\uff1b\u5177\u4f53\u53ef\u4ee5\u770bStackOverflow\u4e0a\u7684<a href=\"https:\/\/serverfault.com\/questions\/350023\/tc-ingress-policing-and-ifb-mirroring\">\u8fd9\u4e2a\u95ee\u7b54<\/a>\uff0c\u5728\u5c0f\u7c735\u6d4b\u8bd5\u673a\u4e0a\u4eb2\u6d4b\u6709\u6548\u3002<a href=\"https:\/\/www.cnblogs.com\/feisky\/archive\/2011\/11\/06\/2238014.html\">\u5bf9ingress\u548cifb\u7684\u4e00\u4e2a\u4ecb\u7ecd\u3002<\/a>\u3002<\/p>\n\n\n\n<p>\u5173\u952e\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\"># \u52a0\u8f7d\u5185\u6838\u6a21\u5757\nmodprobe ifb numifbs=1\r\n\n# \u542f\u7528\u865a\u62df\u8bbe\u5907ifb0\nip link set dev ifb0 up # repeat for ifb1, ifb2, ...\n\n# \u5c06\u5165\u53e3\u6d41\u91cf\u5bfc\u5165\u5230ifb0\ntc qdisc add dev eth0 handle ffff: ingress\r\ntc filter add dev eth0 parent ffff: protocol ip u32 match u32 0 0 action mirred egress redirect dev ifb0\n\n# \u73b0\u5728\u53ef\u4ee5\u5bf9ifb0\u5e94\u7528tc\u547d\u4ee4\u5bf9\u5165\u53e3\u6d41\u91cf\u8fdb\u884c\u6574\u5f62\u4e86<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83%E6%96%87%E6%A1%A3\"><\/span>\u53c2\u8003\u6587\u6863<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p><a href=\"https:\/\/www.cnblogs.com\/wn1m\/p\/10919797.html\" data-type=\"URL\" data-id=\"https:\/\/www.cnblogs.com\/wn1m\/p\/10919797.html\">\u522b\u4eba\u7684TC\u5b66\u4e60\u603b\u7ed3<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56e0\u4e3a\u5de5\u4f5c\u4e2d\u6d4b\u8bd5TCP\u62e5\u585e\u63a7\u5236\u7b97\u6cd5\u7684\u9700\u8981\u800c\u63a5\u89e6\u4e86tc\u547d\u4ee4\uff0c\u56e0\u6b64\u7cfb\u7edf\u5b66\u4e60\u4e00\u4e0b\u5173\u4e8e\u8fd9\u4e2a\u547d\u4ee4\u7684\u4e1c\u897f\u3002\u5173\u4e8etc\u7684\u6bd4\u8f83\u6743\u5a01\u7684\u8d44\u6599\uff1a \u57fa\u672c\u6982\u5ff5 qdisc \u5982manual\u4e2d\u6240\u8bf4\uff0c\u6bcf\u4e2a\u7f51\u53e3\u90fd\u6709\u4e00\u4e2aroot qdisc&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[80],"class_list":["post-780","post","type-post","status-publish","format-standard","hentry","category-10","tag-tc"],"_links":{"self":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/780","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=780"}],"version-history":[{"count":5,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/780\/revisions"}],"predecessor-version":[{"id":1710,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/780\/revisions\/1710"}],"wp:attachment":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}