{"id":1585,"date":"2026-01-27T14:34:26","date_gmt":"2026-01-27T06:34:26","guid":{"rendered":"https:\/\/www.johntitorblog.com\/?p=1585"},"modified":"2026-01-27T14:34:26","modified_gmt":"2026-01-27T06:34:26","slug":"iperf3-%e7%bd%91%e7%bb%9c%e8%b4%a8%e9%87%8f%e6%b5%8b%e8%af%95%e6%8c%87%e5%8d%97%ef%bc%9audp-%e4%b8%a2%e5%8c%85%e5%88%86%e6%9e%90%e4%b8%8e%e7%ab%af%e5%8f%a3%e5%8d%a0%e7%94%a8%e4%bf%ae%e5%a4%8d","status":"publish","type":"post","link":"https:\/\/www.johntitorblog.com\/?p=1585","title":{"rendered":"iperf3 \u7f51\u7edc\u8d28\u91cf\u6d4b\u8bd5\u6307\u5357\uff1aUDP \u4e22\u5305\u5206\u6790\u4e0e\u7aef\u53e3\u5360\u7528\u4fee\u590d"},"content":{"rendered":"\n<p>\u5728\u8fdb\u884c\u8de8\u5730\u57df Linux \u670d\u52a1\u5668\u4e4b\u95f4\u7684\u7f51\u7edc\u8d28\u91cf\u6d4b\u8bd5\u65f6\uff0ciperf3 \u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u547d\u4ee4\u884c\u5de5\u5177\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528 iperf3 \u91cd\u70b9\u6d4b\u8bd5\u7ebf\u8def\u7684 UDP \u4e22\u5305\u7387\uff0c\u4ee5\u53ca\u5982\u4f55\u89e3\u51b3\u670d\u52a1\u7aef\u5e38\u89c1\u7684\u7aef\u53e3\u5360\u7528\u62a5\u9519\u3002<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\" id=\"user-content-1-\u5ba2\u6237\u7aef\u6d4b\u8bd5\u547d\u4ee4\u8be6\u89e3\">1. \u5ba2\u6237\u7aef\u6d4b\u8bd5\u547d\u4ee4\u8be6\u89e3<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"user-content-udp-\u6a21\u5f0f-\u6d4b\u8bd5\u4e22\u5305\u7387\u4e0e\u5ef6\u8fdf\">UDP \u6a21\u5f0f (\u6d4b\u8bd5\u4e22\u5305\u7387\u4e0e\u5ef6\u8fdf)<\/h3>\n\n\n\n<p>\u8981\u6d4b\u8bd5\u7ebf\u8def\u8d28\u91cf\uff0c\u7279\u522b\u662f&nbsp;<strong>UDP \u4e22\u5305\u7387 (Datagrams lost)<\/strong>\uff0c\u8bf7\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">iperf3 -c 192.0.2.1 -u -R -t 15 -b 128M<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"user-content-tcp-\u6a21\u5f0f-\u6d4b\u8bd5\u6700\u5927\u5e26\u5bbd\">TCP \u6a21\u5f0f (\u6d4b\u8bd5\u6700\u5927\u5e26\u5bbd)<\/h3>\n\n\n\n<p>\u5982\u679c\u4ec5\u6d4b\u8bd5&nbsp;<strong>TCP \u6700\u5927\u5e26\u5bbd<\/strong>\uff0c\u53ef\u4f7f\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">iperf3 -c 192.0.2.1 -R<\/pre>\n\n\n\n<p><em>(\u6ce8\uff1aTCP \u6a21\u5f0f\u4f1a\u81ea\u52a8\u91cd\u4f20\u4e22\u5305\uff0c\u65e0\u6cd5\u76f4\u63a5\u770b\u5230\u4e22\u5305\u7387\uff0c\u4f46\u9002\u5408\u6d4b\u8bd5\u6700\u5927\u541e\u5410\u91cf)<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"user-content-\u53c2\u6570\u89e3\u6790\">\u53c2\u6570\u89e3\u6790<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>-c 192.0.2.1<\/code><\/strong>: \u6307\u5b9a\u5ba2\u6237\u7aef\u6a21\u5f0f (Client)\uff0c\u5e76\u8fde\u63a5\u5230\u76ee\u6807\u670d\u52a1\u5668 IP\u00a0<code>192.0.2.1<\/code>\u3002<\/li>\n\n\n\n<li><strong><code>-u<\/code><\/strong>:\u00a0<strong>\u5173\u952e\u53c2\u6570<\/strong>\u3002\u4f7f\u7528\u00a0<strong>UDP<\/strong>\u00a0\u534f\u8bae\u800c\u4e0d\u662f\u9ed8\u8ba4\u7684 TCP\u3002UDP \u6d4b\u8bd5\u4e0d\u4f1a\u8fdb\u884c\u91cd\u4f20\uff0c\u56e0\u6b64\u80fd\u66f4\u76f4\u89c2\u5730\u53cd\u6620\u7ebf\u8def\u7684\u4e22\u5305\u60c5\u51b5\uff08Packet Loss\uff09\u548c\u6296\u52a8\uff08Jitter\uff09\u3002<\/li>\n\n\n\n<li><strong><code>-R<\/code><\/strong>: \u53cd\u5411\u6a21\u5f0f (Reverse)\u3002\n<ul class=\"wp-block-list\">\n<li>\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5ba2\u6237\u7aef\u53d1\u9001\u6570\u636e\uff0c\u670d\u52a1\u7aef\u63a5\u6536\uff08\u6d4b\u8bd5\u4e0a\u4f20\u901f\u5ea6\uff09\u3002<\/li>\n\n\n\n<li>\u52a0\u4e0a\u00a0<code>-R<\/code>\u00a0\u540e\uff0c<strong>\u670d\u52a1\u7aef\u53d1\u9001\u6570\u636e\uff0c\u5ba2\u6237\u7aef\u63a5\u6536<\/strong>\uff08\u6d4b\u8bd5\u4e0b\u8f7d\u901f\u5ea6\uff09\u3002\u8fd9\u5bf9\u4e8e\u6d4b\u8bd5\u201c\u670d\u52a1\u5668\u5230\u6211\u672c\u5730\u201d\u6216\u201c\u6e90\u7ad9\u5230\u4e2d\u8f6c\u673a\u201d\u7684\u5165\u7ad9\u7f51\u7edc\u8d28\u91cf\u975e\u5e38\u6709\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong><code>-t 15<\/code><\/strong>: \u6d4b\u8bd5\u6301\u7eed\u65f6\u95f4\u4e3a 15 \u79d2\u3002<\/li>\n\n\n\n<li><strong><code>-b 128M<\/code><\/strong>: \u76ee\u6807\u5e26\u5bbd (Bandwidth) \u8bbe\u7f6e\u4e3a 128 Mbits\/sec\u3002\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u4e0d\u8bbe\u7f6e\u6b64\u9879\uff0cUDP \u6a21\u5f0f\u4e0b iperf3 \u9ed8\u8ba4\u53ea\u4f7f\u7528 1Mbps\uff0c\u65e0\u6cd5\u6d4b\u51fa\u9ad8\u5e26\u5bbd\u4e0b\u7684\u4e22\u5305\u8868\u73b0\u3002\u5efa\u8bae\u5c06\u5176\u8bbe\u7f6e\u4e3a\u7565\u4f4e\u4e8e\u4f60\u7684\u7269\u7406\u5e26\u5bbd\u4e0a\u9650\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"user-content-\u7ed3\u679c\u5173\u6ce8\u70b9\">\u7ed3\u679c\u5173\u6ce8\u70b9<\/h3>\n\n\n\n<p>\u6267\u884c\u547d\u4ee4\u540e\uff0c\u91cd\u70b9\u5173\u6ce8\u6700\u540e\u62a5\u544a\u4e2d\u7684&nbsp;<strong>Lost\/Total<\/strong>&nbsp;\u548c&nbsp;<strong>Datagrams<\/strong>&nbsp;\u4e00\u680f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">[ ID] Interval           Transfer     Bitrate         Jitter    Lost\/Total Datagrams[  5]   0.00-15.00  sec   229 MBytes   128 Mbits\/sec  0.038 ms  0\/169410 (0%)  receiver<\/pre>\n\n\n\n<p>\u5982\u679c&nbsp;<code>Lost<\/code>&nbsp;\u767e\u5206\u6bd4\u8fc7\u9ad8\uff08\u4f8b\u5982 &gt; 5%\uff09\uff0c\u8bf4\u660e\u7ebf\u8def\u8d28\u91cf\u8f83\u5dee\uff0c\u7528\u4e8e\u89c6\u9891\u63a8\u6d41\u6216\u6e38\u620f\u53ef\u80fd\u4f1a\u51fa\u73b0\u5361\u987f\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"user-content-2-\u670d\u52a1\u7aef\u5e38\u89c1\u62a5\u9519\u4e0e\u4fee\u590d\">2. \u670d\u52a1\u7aef\u5e38\u89c1\u62a5\u9519\u4e0e\u4fee\u590d<\/h2>\n\n\n\n<p>\u5728\u670d\u52a1\u7aef\u542f\u52a8 iperf3 \u65f6\uff0c\u4f60\u901a\u5e38\u4f1a\u8fd0\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">iperf3 -s<\/pre>\n\n\n\n<p>\u4f46\u6709\u65f6\u4f1a\u9047\u5230\u5982\u4e0b\u62a5\u9519\uff0c\u63d0\u793a\u5730\u5740\u5df2\u88ab\u5360\u7528\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">root@us-free-center:~# iperf3 -s iperf3: error - unable to start listener for connections: Address already in useiperf3: exiting<\/pre>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"user-content-\u539f\u56e0\u5206\u6790\">\u539f\u56e0\u5206\u6790<\/h3>\n\n\n\n<p>\u8fd9\u901a\u5e38\u610f\u5473\u7740 5201 \u7aef\u53e3\uff08iperf3 \u9ed8\u8ba4\u7aef\u53e3\uff09\u5df2\u7ecf\u88ab\u53e6\u4e00\u4e2a iperf3 \u8fdb\u7a0b\u5360\u7528\uff0c\u6216\u8005\u4e0a\u4e00\u6b21\u5f02\u5e38\u9000\u51fa\u540e\u8fdb\u7a0b\u5361\u6b7b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"user-content-\u89e3\u51b3\u65b9\u6848\">\u89e3\u51b3\u65b9\u6848<\/h3>\n\n\n\n<p>\u6211\u4eec\u9700\u8981\u627e\u5230\u5360\u7528\u8be5\u7aef\u53e3\u7684\u8fdb\u7a0b\u5e76\u5c06\u5176\u7ec8\u6b62\u3002\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528&nbsp;<code>fuser<\/code>&nbsp;\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">fuser -k 5201\/tcp<\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>5201\/tcp<\/code>: \u6307\u5b9a\u8981\u67e5\u627e\u7684\u7aef\u53e3\u548c\u534f\u8bae\u3002<\/li>\n\n\n\n<li><code>-k<\/code>:\u4e0d\u4ec5\u4ec5\u662f\u67e5\u627e\uff0c\u76f4\u63a5\u00a0<strong>Kill<\/strong>\u00a0\u6389\u5360\u7528\u8be5\u7aef\u53e3\u7684\u8fdb\u7a0b\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u6267\u884c\u5b8c\u4e0a\u8ff0\u547d\u4ee4\u540e\uff0c\u518d\u6b21\u8fd0\u884c&nbsp;<code>iperf3 -s<\/code>&nbsp;\u5373\u53ef\u6062\u590d\u6b63\u5e38\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u8fdb\u884c\u8de8\u5730\u57df Linux \u670d\u52a1\u5668\u4e4b\u95f4\u7684\u7f51\u7edc\u8d28\u91cf\u6d4b\u8bd5\u65f6\uff0ciperf3 \u662f\u4e00\u4e2a\u975e\u5e38\u5f3a\u5927\u7684\u547d\u4ee4\u884c\u5de5\u5177\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1585","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1585","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1585"}],"version-history":[{"count":1,"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1585\/revisions"}],"predecessor-version":[{"id":1586,"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=\/wp\/v2\/posts\/1585\/revisions\/1586"}],"wp:attachment":[{"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1585"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1585"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.johntitorblog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}