{"id":2332,"date":"2018-09-19T12:23:39","date_gmt":"2018-09-19T04:23:39","guid":{"rendered":"http:\/\/www.51cos.com\/?p=2332"},"modified":"2018-09-19T16:57:49","modified_gmt":"2018-09-19T08:57:49","slug":"%e5%a6%82%e4%bd%95%e6%b5%8b%e8%af%95udp%e6%95%b0%e6%8d%ae%e5%8c%85%e7%9a%84%e4%b8%a2%e5%8c%85%e7%8e%87%e5%92%8c%e5%bb%b6%e8%bf%9f%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.51cos.com\/?p=2332","title":{"rendered":"\u5982\u4f55\u7528iperf\u6d4b\u8bd5wifi\u6027\u80fd\u3001\u6570\u636e\u5305\u7684\u4e22\u5305\u7387\u548c\u5ef6\u8fdf\uff1f"},"content":{"rendered":"

\u7f51\u7edc\u7684\u4e3b\u8981\u6027\u80fd\u53c2\u6570\u5305\u62ec\u5e26\u5bbd\uff0c\u65f6\u5ef6\uff0c\u6296\u52a8\u548c\u4e22\u5305\u7387\uff0c\u8fd9\u4e9b\u7528\u4e00\u4e2a\u540d\u8bcd\u4ee3\u66ff\uff0c\u5c31\u662fQOS\uff08\u670d\u52a1\u8d28\u91cf\uff09\u3002
\n\"\"<\/a><\/p>\n

\u56fe\u4e2dD1\uff0cD2\u5206\u522b\u8868\u793a\u5305A\u548c\u5305B\u7684\u65f6\u5ef6\u3002\u6296\u52a8\uff1d|D2-D1| \u3002\u6211\u4eec\u6d4b\u8bd5\u65f6\u9700\u8981\u53d1\u9001\u5927\u91cf\u7684\u5305\uff0c\u56e0\u6b64\u8ba1\u7b97\u51fa\u6765\u7684\u6296\u52a8\u503c\u5c31\u662f\u8fde\u7eed\u53d1\u9001\u65f6\u5ef6\u5dee\u503c\u7684\u5e73\u5747\u503c\u3002<\/p>\n

iperf\u4e2d\u7684\u53ef\u9009\u53c2\u6570\u6bd4\u8f83\u591a\uff0c\u5177\u4f53\u53ef\u4ee5\u53c2\u89c1\u5176\u7528\u6237\u624b\u518c\u3002http:\/\/webfolder.wirelessleiden.nl\/iperf <\/p>\n

\u4e00\u822c\u6765\u8bf4\uff0c\u6211\u4eec\u5728\u505a\u6027\u80fd\u6d4b\u8bd5\u7684\u65f6\u5019\u9700\u8981\u6307\u5b9a\u5305\u957f\uff0c\u4e0d\u540c\u7684\u5305\u957f\u4f1a\u5f97\u5230\u4e0d\u540c\u7684\u541e\u5410\u91cf\uff0c\u901a\u8fc7-l\u6307\u5b9a\uff0c\u800c\u4f7f\u7528-b\u6307\u5b9a\u5e26\u5bbd\u3002<\/p>\n

\u6d4b\u8bd5\u541e\u5410\u91cf\uff0c\u6296\u52a8\u548c\u4e22\u5305\u7387<\/strong><\/p>\n

\u5982\u4f55\u9700\u8981\u540c\u65f6\u6d4b\u8bd5\u4ee5\u4e0a\u4e09\u4e2a\u53c2\u6570\uff0c\u90a3\u4e48\u53ea\u80fd\u901a\u8fc7UDP\u83b7\u5f97\u3002\u4f7f\u7528-u\u53c2\u6570\u8fdb\u884cUDP\u6d4b\u8bd5\uff08iperf\u9ed8\u8ba4\u4e3aTCP\uff09\u3002\u5728\u6d4b\u8bd5\u7684\u6700\u540eserver\u7aef\u4f1a\u7ed9\u51fa\u4e00\u4e2a\u62a5\u544a\u3002<\/p>\n

[ 3] local 192.168.1.1 port 2152 connected with 192.168.101.2 port 56768
\n[ ID] Interval Transfer Bandwidth Jitter Lost\/Total Datagrams
\n[ 3] 0.0- 1.0 sec 1.40 MBytes 11.7 Mbits\/sec 0.069 ms 0\/14671 (0%)
\n[ 3] 1.0- 2.0 sec 1.40 MBytes 11.8 Mbits\/sec 0.050 ms 0\/14703 (0%)
\n[ 3] 2.0- 3.0 sec 1.40 MBytes 11.8 Mbits\/sec 0.052 ms 0\/14708 (0%)
\n[ 3] 3.0- 4.0 sec 1.40 MBytes 11.8 Mbits\/sec 0.057 ms 0\/14704 (0%)
\n[ 3] 4.0- 5.0 sec 1.40 MBytes 11.8 Mbits\/sec 0.072 ms 0\/14706 (0%)
\n[ 3] 5.0- 6.0 sec 1.40 MBytes 11.8 Mbits\/sec 0.075 ms 0\/14705 (0%)
\n[ 3] 6.0- 7.0 sec 1.40 MBytes 11.8 Mbits\/sec 0.060 ms 0\/14707 (0%)
\n[ 3] 7.0- 8.0 sec 1.40 MBytes 11.8 Mbits\/sec 0.073 ms 0\/14703 (0%)
\n[ 3] 8.0- 9.0 sec 1.40 MBytes 11.8 Mbits\/sec 0.073 ms 0\/14706 (0%)
\n[ 3] 0.0-10.0 sec 14.0 MBytes 11.8 Mbits\/sec 0.064 ms 0\/147020 (0%) <\/p>\n

\u6d4b\u8bd5\u65f6\u5ef6\uff0c\u6700\u7b80\u5355\u7684\u529e\u6cd5\u5c31\u662f\u4f7f\u7528Ping\u7a0b\u5e8f\u3002\u6211\u4eec\u7ecf\u5e38\u7528\u5b83\u6765\u6d4b\u8bd5\u7279\u5b9a\u4e3b\u673a\u80fd\u5426\u901a\u8fc7IP\u5230\u8fbe\uff0c\u7a0b\u5e8f\u4f1a\u6309\u65f6\u95f4\u548c\u53cd\u5e94\u6210\u529f\u7684\u6b21\u6570\uff0c\u4f30\u8ba1\u4e22\u5305\u7387\u548c\u5206\u7ec4\u6765\u56de\u65f6\u95f4\uff08\u5373\u7f51\u7edc\u65f6\u5ef6\uff09\u3002<\/p>\n

\u4f7f\u7528TCP\u6d4b\u8bd5\u5e26\u5bbd\u5e94\u6ce8\u610f\u7684\u95ee\u9898<\/strong><\/p>\n

\u6709\u65f6\u5019\uff0c\u6211\u4eec\u9700\u8981\u4f7f\u7528TCP\u6765\u6d4b\u8bd5\u7f51\u7edc\u5e26\u5bbd\u3002\u8fd9\u91cc\u6709\u4e00\u4e2a\u53c2\u6570\u9700\u8981\u7279\u522b\u6ce8\u610f\uff0c\u90a3\u5c31\u662fTCP\u7a97\u53e3\u5927\u5c0f\uff0c\u53ef\u4ee5\u4f7f\u7528-w\u53c2\u6570\u6307\u5b9a\u3002
\n\u7f51\u7edc\u901a\u9053\u7684\u5bb9\u91cfcapacity = bandwidth * round-trip time
\n\u800c\u7406\u8bbaTCP\u7a97\u53e3\u7684\u5927\u5c0f\u5c31\u662f\u7f51\u7edc\u901a\u9053\u7684\u5bb9\u91cf\u3002\u6bd4\u5982\uff0c\u7f51\u7edc\u5e26\u5bbd\u4e3a40Mbit\/s,\u56de\u73af\u8def\u5f84\u6d88\u8017\u65f6\u95f4\u662f2ms\uff0c\u90a3\u4e48TCP\u7684\u7a97\u53e3\u5927\u5c0f\u4e0d\u5c0f\u4e8e40Mbit\/s\u00d72ms = 80kbit = 10Kbytes\u3002
\n\u6b64\u65f6\u6211\u4eec\u53ef\u4ee5\u67e5\u8be2iperf\u9ed8\u8ba4\u7684TCP\u7a97\u53e3\u5927\u5c0f\u6765\u51b3\u5b9a\u662f\u5426\u9700\u8981\u8bbe\u7f6e\u6b64\u53c2\u6570\uff0c\u5728\u6b64\u4f8b\u4e2d\uff0c\u7a97\u53e3\u5927\u5c0f\u5e94\u8bbe\u8ba1\u5927\u4e8e10Kbytes\uff0c\u5f53\u7136\uff0c\u8fd9\u4ec5\u4ec5\u662f\u7406\u8bba\u503c\uff0c\u5728\u5b9e\u9645\u6d4b\u8bd5\u4e2d\u53ef\u80fd\u9700\u8981\u4f5c\u51fa\u8c03\u6574\u3002<\/p>\n

\u53c2\u6570\u8bf4\u660e
\n-s \u4ee5server\u6a21\u5f0f\u542f\u52a8\uff0ceg\uff1aiperf -s
\n-c \u4ee5client\u6a21\u5f0f\u542f\u52a8\uff0chost\u662fserver\u7aef\u5730\u5740\uff0ceg\uff1aiperf -c 222.35.11.23<\/p>\n

\u901a\u7528\u53c2\u6570
\n-f [k|m|K|M] \u5206\u522b\u8868\u793a\u4ee5Kbits, Mbits, KBytes, MBytes\u663e\u793a\u62a5\u544a\uff0c\u9ed8\u8ba4\u4ee5Mbits\u4e3a\u5355\u4f4d,eg:iperf -c 222.35.11.23 -f K
\n-i sec \u4ee5\u79d2\u4e3a\u5355\u4f4d\u663e\u793a\u62a5\u544a\u95f4\u9694\uff0ceg:iperf -c 222.35.11.23 -i 2
\n[v_error]iperf\u662fclient\u7aef\u5411server\u7aef\u53d1\u9001\u6570\u636e
\nserver\u7aef\u663e\u793a\u7684\u662f\u63a5\u6536\u901f\u7387\uff0c\u6700\u597d\u52a0i\u53c2\u6570\uff0c\u8fdb\u884c\u901f\u7387\u8ddf\u8e2a
\nclient \u663e\u793a\u7684\u662f\u53d1\u9001\u901f\u7387
\nserver \u663e\u793a\u63a5\u6536\u901f\u7387[\/v_error]
\n-l \u7f13\u51b2\u533a\u5927\u5c0f\uff0c\u9ed8\u8ba4\u662f8KB,eg:iperf -c 222.35.11.23 -l 16
\n\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684\u5305\u957f\uff0c\u8fdb\u884c\u6d4b\u8bd5
\n-m \u663e\u793atcp\u6700\u5927mtu\u503c
\n-o \u5c06\u62a5\u544a\u548c\u9519\u8bef\u4fe1\u606f\u8f93\u51fa\u5230\u6587\u4ef6eg:iperf -c 222.35.11.23 -o c:iperflog.txt
\n-p \u6307\u5b9a\u670d\u52a1\u5668\u7aef\u4f7f\u7528\u7684\u7aef\u53e3\u6216\u5ba2\u6237\u7aef\u6240\u8fde\u63a5\u7684\u7aef\u53e3eg:iperf -s -p 9999;iperf -c 222.35.11.23 -p 9999<\/p>\n

-u \u4f7f\u7528udp\u534f\u8bae
\n[v_error]\u6d4b\u8bd5htb\u7684\u65f6\u5019\u6700\u597d\u7528udp\uff0cudp\u901a\u4fe1\u5f00\u9500\u5c0f\uff0c\u6d4b\u8bd5\u7684\u5e26\u5bbd\u66f4\u51c6\u786e[\/v_error]<\/p>\n

-w \u6307\u5b9aTCP\u7a97\u53e3\u5927\u5c0f\uff0c\u9ed8\u8ba4\u662f8KB
\n[v_error]\u5982\u679c\u7a97\u53e3\u592a\u5c0f\uff0c\u6709\u53ef\u80fd\u4e22\u5305[\/v_error]
\n-B \u7ed1\u5b9a\u4e00\u4e2a\u4e3b\u673a\u5730\u5740\u6216\u63a5\u53e3\uff08\u5f53\u4e3b\u673a\u6709\u591a\u4e2a\u5730\u5740\u6216\u63a5\u53e3\u65f6\u4f7f\u7528\u8be5\u53c2\u6570\uff09
\n-C \u517c\u5bb9\u65e7\u7248\u672c\uff08\u5f53server\u7aef\u548cclient\u7aef\u7248\u672c\u4e0d\u4e00\u6837\u65f6\u4f7f\u7528\uff09
\n-M \u8bbe\u5b9aTCP\u6570\u636e\u5305\u7684\u6700\u5927mtu\u503c
\n-N \u8bbe\u5b9aTCP\u4e0d\u5ef6\u65f6
\n-V \u4f20\u8f93ipv6\u6570\u636e\u5305<\/p>\n

server\u4e13\u7528\u53c2\u6570
\n-D \u4ee5\u670d\u52a1\u65b9\u5f0f\u8fd0\u884cipserf\uff0ceg:iperf -s -D
\n-R \u505c\u6b62iperf\u670d\u52a1\uff0c\u9488\u5bf9-D\uff0ceg:iperf -s -R<\/p>\n

client\u7aef\u4e13\u7528\u53c2\u6570
\n-d \u540c\u65f6\u8fdb\u884c\u53cc\u5411\u4f20\u8f93\u6d4b\u8bd5
\n-n \u6307\u5b9a\u4f20\u8f93\u7684\u5b57\u8282\u6570\uff0ceg:iperf -c 222.35.11.23 -n 100000
\n-r \u5355\u72ec\u8fdb\u884c\u53cc\u5411\u4f20\u8f93\u6d4b\u8bd5<\/p>\n

[v_warn]-b \u6307\u5b9a\u53d1\u9001\u5e26\u5bbd\uff0c\u9ed8\u8ba4\u662f1Mbit\/s
\n\u5728\u6d4b\u8bd5qos\u7684\u65f6\u5019\uff0c\u8fd9\u662f\u6700\u6709\u7528\u7684\u53c2\u6570\u3002[\/v_warn]
\n-t \u6d4b\u8bd5\u65f6\u95f4\uff0c\u9ed8\u8ba410\u79d2,eg:iperf -c 222.35.11.23 -t 5
\n\u9ed8\u8ba4\u662f10s
\n-F \u6307\u5b9a\u9700\u8981\u4f20\u8f93\u7684\u6587\u4ef6
\n-T \u6307\u5b9attl\u503c<\/p>\n

\u5ba2\u6237\u7aef\u4e13\u7528\u9009\u9879\u7684\u542b\u4e49\u547d\u4ee4\u884c\u53c2\u6570<\/p>\n

-c\u5c06iperf\u4ee5client\u6a21\u5f0f\u542f\u52a8
\n\u4f8b\u5982\uff1aiperf3 -c 192.168.12.168\uff0c\u5176\u4e2d192.168.12.168\u662fserver\u7aef\u7684IP\u5730\u5740<\/p>\n

-u\u6307\u5b9a\u4f7f\u7528UDP\u534f\u8bae<\/p>\n

-b [K|M|G]
\n\u6307\u5b9aUDP\u6a21\u5f0f\u4f7f\u7528\u7684\u5e26\u5bbd\uff0c\u5355\u4f4dbits\/sec\u3002\u6b64\u9009\u9879\u4e0e\u201c-u\u201d\u9009\u9879\u76f8\u5173\u3002\u9ed8\u8ba4\u503c\u662f1 Mbit\/sec<\/p>\n

-t
\n\u6307\u5b9a\u4f20\u8f93\u6570\u636e\u5305\u7684\u603b\u65f6\u95f4\u3002iperf\u5c06\u5728\u6307\u5b9a\u7684\u65f6\u95f4\u5185\uff0c\u91cd\u590d\u53d1\u9001\u6307\u5b9a\u957f\u5ea6\u7684\u6570\u636e\u5305\u3002\u9ed8\u8ba4\u662f10\u79d2\u949f<\/p>\n

-n [K|M|G]
\n\u6307\u5b9a\u4f20\u8f93\u6570\u636e\u5305\u7684\u5b57\u8282\u6570\uff0c\u4f8b\u5982\uff1aiperf3 -c 192.168.12.168 \u2013n 100M<\/p>\n

-l
\n\u6307\u5b9a\u8bfb\u5199\u7f13\u51b2\u533a\u7684\u957f\u5ea6\u3002TCP\u65b9\u5f0f\u9ed8\u8ba4\u5927\u5c0f\u4e3a8KB\uff0cUDP\u65b9\u5f0f\u9ed8\u8ba4\u5927\u5c0f\u4e3a1470\u5b57\u8282<\/p>\n

-P
\n\u6307\u5b9a\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u4e4b\u95f4\u4f7f\u7528\u7684\u7ebf\u7a0b\u6570\u3002\u9ed8\u8ba4\u662f1\u4e2a\u7ebf\u7a0b\u3002\u9700\u8981\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7aef\u540c\u65f6\u4f7f\u7528\u6b64\u53c2\u6570<\/p>\n

-R
\n\u5207\u6362\u6570\u636e\u53d1\u9001\u63a5\u6536\u6a21\u5f0f\uff0c\u4f8b\u5982\u9ed8\u8ba4\u5ba2\u6237\u7aef\u53d1\u9001\uff0c\u670d\u52a1\u5668\u7aef\u63a5\u6536\uff0c\u8bbe\u7f6e\u6b64\u53c2\u6570\u540e\uff0c\u6570\u636e\u6d41\u5411\u53d8\u4e3a\u5ba2\u6237\u7aef\u63a5\u6536\uff0c\u670d\u52a1\u5668\u7aef\u53d1\u9001<\/p>\n

-w
\n\u6307\u5b9a\u5957\u63a5\u5b57\u7f13\u51b2\u533a\u5927\u5c0f\uff0c\u5728TCP\u65b9\u5f0f\u4e0b\uff0c\u6b64\u8bbe\u7f6e\u4e3aTCP\u7a97\u53e3\u7684\u5927\u5c0f\u3002\u5728UDP\u65b9\u5f0f\u4e0b\uff0c\u6b64\u8bbe\u7f6e\u4e3a\u63a5\u53d7UDP\u6570\u636e\u5305\u7684\u7f13\u51b2\u533a\u5927\u5c0f\uff0c\u7528\u6765\u9650\u5236\u53ef\u4ee5\u63a5\u6536\u6570\u636e\u5305\u7684\u6700\u5927\u503c<\/p>\n

-B
\n\u7528\u6765\u7ed1\u5b9a\u4e00\u4e2a\u4e3b\u673a\u5730\u5740\u6216\u63a5\u53e3\uff0c\u8fd9\u4e2a\u53c2\u6570\u4ec5\u7528\u4e8e\u5177\u6709\u591a\u4e2a\u7f51\u7edc\u63a5\u53e3\u7684\u4e3b\u673a\u3002\u5728UDP\u6a21\u5f0f\u4e0b\uff0c\u6b64\u53c2\u6570\u7528\u4e8e\u7ed1\u5b9a\u548c\u52a0\u5165\u4e00\u4e2a\u591a\u64ad\u7ec4<\/p>\n

-M
\n\u8bbe\u7f6eTCP\u6700\u5927\u4fe1\u606f\u6bb5\u7684\u503c<\/p>\n

-N
\n\u8bbe\u7f6eTCP\u65e0\u5ef6\u65f6<\/p>\n

[v_error]TCP\u534f\u8bae\u6d4b\u8bd5\u4e0d\u80fd\u8ba1\u7b97\u51fa\u65f6\u5ef6\u4e0e\u4e22\u5305\u7387\uff0c\u800c\u4e14\u8fd8\u4e0d\u80fd\u6307\u5b9a\u53d1\u9001\u5e26\u5bbd\u3002[\/v_error]<\/p>\n

\u670d\u52a1\u7aef\uff1a
\n[root@localhost ~]# iperf -s -u #\u8bbe\u5b9a\u6b64\u7aef\u4e3a\u670d\u52a1\u7aef
\n———————————————————— #\u672c\u6bb5\u8bbe\u7f6e\u4fe1\u606f
\nServer listening on UDP port 5001
\nReceiving 1470 byte datagrams
\nUDP buffer size: 108 KByte (default)
\n————————————————————
\n[ 3] local 218.60.1.20 port 5001 connected with 218.241.145.36 port 32784 #\u5982\u679c\u5bf9\u7aef\u8fde\u63a5\u4e0a\u4e86\u672c\u7aef\u624d\u4f1a\u51fa\u73b0\u8be5\u4fe1\u606f
\n[ ID] Interval Transfer Bandwidth Jitter Lost\/Total Datagrams
\n[ 3] 0.0-10.6 sec 263 KBytes 204 Kbits\/sec 36.314 ms 1518\/ 1701 (89%)
\n[ 3] 0.0-10.6 sec 1 datagrams received out-of-order<\/p>\n

\u5ba2\u6237\u7aef\uff1a
\n[root@localhost ~]# iperf -c 192.168.1.100 -u -i 1 -t 10 -b 2M #\u6307\u5b9a2M\u5e26\u5bbd\u5411\u5bf9\u7aef\u53d1\u9001\u6570\u636e
\n————————————————————
\nClient connecting to 192.168.1.100, UDP port 5001
\nSending 1470 byte datagrams
\nUDP buffer size: 108 KByte (default)
\n————————————————————
\n[ 3] local 192.200.40.112 port 32784 connected with 218.60.1.20 port 5001 #\u4e0e\u5bf9\u7aef\u8fde\u63a5\u4e0a\u7684\u4fe1\u606f
\n[ ID] Interval Transfer Bandwidth #\u8f93\u51fa\u884c\u7684\u89e3\u91ca
\n[ 3] 0.0- 1.0 sec 12.0 GBytes 103 Gbits\/sec
\n[ 3] 1.0- 2.0 sec 244 KBytes 2.00 Mbits\/sec
\n[ 3] 2.0- 3.0 sec 244 KBytes 2.00 Mbits\/sec
\n[ 3] 3.0- 4.0 sec 244 KBytes 2.00 Mbits\/sec
\n[ 3] 4.0- 5.0 sec 244 KBytes 2.00 Mbits\/sec
\n[ 3] 5.0- 6.0 sec 245 KBytes 2.01 Mbits\/sec
\n[ 3] 6.0- 7.0 sec 244 KBytes 2.00 Mbits\/sec
\n[ 3] 7.0- 8.0 sec 244 KBytes 2.00 Mbits\/sec
\n[ 3] 8.0- 9.0 sec 244 KBytes 2.00 Mbits\/sec
\n[ 3] 9.0-10.0 sec 244 KBytes 2.00 Mbits\/sec
\n[ 3] 0.0-10.0 sec 12.0 GBytes 10.3 Gbits\/sec
\n[ 3] Sent 1702 datagrams
\n[ 3] Server Report: #\u8f93\u51fa\u62a5\u544a
\n[ 3] 0.0-10.6 sec 263 KBytes 204 Kbits\/sec 36.313 ms 1518\/ 1701 (89%) #\u95f4\u8ddd \uff0c\u4f20\u8f93\u603b\u5b57\u8282\uff0c\u901f\u7387\uff0c\u65f6\u5ef6\uff0c\u4e22\u5305\u7387\u3002
\n[ 3] 0.0-10.6 sec 1 datagrams received out-of-order #\u4e71\u5e8f<\/p>\n

\u4e3a\u4e86\u6a21\u62df\u66f4\u771f\u5b9e\u7684TCP\u5e94\u7528\uff0ciperf\u5ba2\u6237\u7aef\u5141\u8bb8\u4ece\u4e00\u4e2a\u7279\u5b9a\u7684\u6587\u4ef6\u53d1\u9001\u6570\u636e\uff0c\u8fd9\u53ef\u4ee5\u901a\u8fc7\u201c-F\u201d\u53c2\u6570\u5b9e\u73b0\uff0c\u901a\u8fc7\u201c-F\u201d\u53c2\u6570\u6307\u5b9a\u4e86\u4e00\u4e2awebdata.tar.gz\u6587\u4ef6\u4f5c\u4e3aiperf\u8981\u4f20\u8f93\u7684\u6570\u636e\uff0c\u5728\u4f7f\u7528\u6b64\u53c2\u6570\u65f6\uff0c\u9700\u8981\u540c\u65f6\u6307\u5b9a\u4e00\u4e2a\u201c-t\u201d\u53c2\u6570\u6765\u8bbe\u7f6e\u8981\u6d4b\u8bd5\u4f20\u8f93\u7684\u65f6\u95f4\uff0c\u8fd9\u4e2a\u65f6\u95f4\u5c3d\u91cf\u8bbe\u7f6e\u957f\u4e00\u4e9b\uff0c\u56e0\u4e3a\u5728\u9ed8\u8ba4\u4f20\u8f93\u65f6\u95f410\u79d2\u5185\uff0c\u8fd9\u4e2a\u6587\u4ef6\u53ef\u80fd\u8fd8\u6ca1\u6709\u4f20\u5b8c\u3002
\n\"\"<\/a><\/p>\n

iperf\u4f20\u8f93100MB\u7684UDP\u6570\u636e\u5305\u7684\u8f93\u51fa\u7ed3\u679c<\/strong>
\n\u91cd\u70b9\u5173\u6ce8\u865a\u7ebf\u4e0b\u7684\u4e00\u6bb5\u5185\u5bb9\uff0c\u5728\u8fd9\u6bb5\u8f93\u51fa\u4e2d\uff0c\u201cJitter\u201d\u5217\u8868\u793a\u6296\u52a8\u65f6\u95f4\uff0c\u6216\u8005\u79f0\u4e3a\u4f20\u8f93\u5ef6\u8fdf\uff0c\u201cLost\/Total\u201d\u5217\u8868\u793a\u4e22\u5931\u7684\u6570\u636e\u62a5\u548c\u603b\u7684\u6570\u636e\u62a5\u6570\u91cf\uff0c\u540e\u9762\u76840.33%\u662f\u5e73\u5747\u4e22\u5305\u7684\u6bd4\u7387\uff0c\u201cDatagrams\u201d\u5217\u663e\u793a\u7684\u662f\u603b\u5171\u4f20\u8f93\u6570\u636e\u62a5\u7684\u6570\u91cf\u3002\u8fd9\u4e2a\u8f93\u51fa\u7ed3\u679c\u8fc7\u4e8e\u7b80\u5355\uff0c\u8981\u4e86\u89e3\u66f4\u8be6\u7ec6\u7684UDP\u4e22\u5305\u548c\u5ef6\u65f6\u4fe1\u606f\uff0c\u53ef\u4ee5\u5728iperf\u670d\u52a1\u7aef\u67e5\u770b\uff0c\u56e0\u4e3a\u5728\u5ba2\u6237\u7aef\u6267\u884c\u4f20\u8f93\u6d4b\u8bd5\u7684\u540c\u65f6\uff0c\u670d\u52a1\u7aef\u4e5f\u4f1a\u540c\u65f6\u663e\u793a\u4f20\u8f93\u72b6\u6001\u3002\u5728\u8fd9\u4e2a\u8f93\u51fa\u4e2d\uff0c\u8be6\u7ec6\u8bb0\u5f55\u4e86\u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u6bcf\u4e2a\u9636\u6bb5\u7684\u4f20\u8f93\u5ef6\u65f6\u548c\u4e22\u5305\u7387\uff0c\u5728UDP\u5e94\u7528\u4e2d\u968f\u7740\u4f20\u8f93\u6570\u636e\u7684\u589e\u5927\uff0c\u4e22\u5305\u7387\u548c\u5ef6\u65f6\u4e5f\u968f\u4e4b\u589e\u52a0\u3002\u5bf9\u4e8e\u5ef6\u65f6\u548c\u4e22\u5305\u53ef\u4ee5\u901a\u8fc7\u6539\u53d8\u5e94\u7528\u7a0b\u5e8f\u6765\u7f13\u89e3\u6216\u4fee\u590d\uff0c\u4f8b\u5982\u89c6\u9891\u6d41\u5e94\u7528\uff0c\u53ef\u4ee5\u901a\u8fc7\u7f13\u5b58\u6570\u636e\u7684\u65b9\u5f0f\u800c\u53ef\u4ee5\u5bb9\u5fcd\u66f4\u5927\u7684\u5ef6\u65f6\u3002
\n\"\"<\/a><\/p>\n

\"\"<\/a><\/p>\n

[v_warn]\u5e26\u5bbd\u6d4b\u8bd5\u901a\u5e38\u91c7\u7528UDP\u6a21\u5f0f\uff0c\u56e0\u4e3a\u80fd\u6d4b\u51fa\u6781\u9650\u5e26\u5bbd\u3001\u65f6\u5ef6\u6296\u52a8\u3001\u4e22\u5305\u7387\u3002\u5728\u8fdb\u884c\u6d4b\u8bd5\u65f6\uff0c\u9996\u5148\u4ee5\u94fe\u8def\u7406\u8bba\u5e26\u5bbd\u4f5c\u4e3a\u6570\u636e\u53d1\u9001\u901f\u7387\u8fdb\u884c\u6d4b\u8bd5\uff0c\u4f8b\u5982\uff0c\u4ece\u5ba2\u6237\u7aef\u5230\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u94fe\u8def\u7684\u7406\u8bba\u5e26\u5bbd\u4e3a100Mbps\uff0c\u5148\u7528 -b 100M\u8fdb\u884c\u6d4b\u8bd5\uff0c\u7136\u540e\u6839\u636e\u6d4b\u8bd5\u7ed3\u679c\uff08\u5305\u62ec\u5b9e\u9645\u5e26\u5bbd\uff0c\u65f6\u5ef6\u6296\u52a8\u548c\u4e22\u5305\u7387\uff09\uff0c\u518d\u4ee5\u5b9e\u9645\u5e26\u5bbd\u4f5c\u4e3a\u6570\u636e\u53d1\u9001\u901f\u7387\u8fdb\u884c\u6d4b\u8bd5\uff0c\u4f1a\u53d1\u73b0\u65f6\u5ef6\u6296\u52a8\u548c\u4e22\u5305\u7387\u6bd4\u7b2c\u4e00\u6b21\u597d\u5f88\u591a\uff0c\u91cd\u590d\u6d4b\u8bd5\u51e0\u6b21\uff0c\u5c31\u80fd\u5f97\u51fa\u7a33\u5b9a\u7684\u5b9e\u9645\u5e26\u5bbd\u3002[\/v_warn]<\/p>\n

[v_warn]TCP\u6700\u57fa\u672c\u7684\u8c03\u6574\u95ee\u9898\u662f\u8c03\u6574TCP\u7a97\u53e3\u5927\u5c0f\uff0c\u5b83\u63a7\u5236\u5728\u4efb\u4f55\u4e00\u70b9\u5728\u7f51\u7edc\u4e2d\u53ef\u4ee5\u6709\u591a\u5c11\u6570\u636e\u3002\u5982\u679c\u5b83\u592a\u5c0f\uff0c\u53d1\u9001\u8005\u5c06\u4f1a\u5728\u4e00\u6bb5\u65f6\u95f4\u5185\u5904\u4e8e\u7a7a\u95f2\u72b6\u6001\uff0c\u4ece\u800c\u5f71\u54cd\u53d1\u9001TCP\u7684\u6027\u80fd\u3002TCP\u7a97\u53e3\u5927\u5c0f\u7684\u7406\u8bba\u503c\u662f\uff1a\u74f6\u9888\u5e26\u5bbd\u4e0e\u5f80\u8fd4\u5ef6\u65f6\u7684\u4e58\u79ef\uff0c\u5373\uff1a
\nbottleneck bandwidth * round trip time
\n\u4f8b\u5982\u74f6\u9888\u94fe\u8def\u662f45 Mbit\/sec\uff0c\u4f7f\u7528ping\u547d\u4ee4\u6d4b\u91cf\u5230\u7684\u5f80\u8fd4\u65f6\u5ef6\u662f42ms\u3002\u90a3\u4e48TCP\u7a97\u53e3\u7684\u7406\u8bba\u503c\u662f45 Mbit\/sec * 42 ms = (45e6) * (42e-3) = 1890000 bits= 230 KByte.\u53ef\u4ee5\u4ee5\u8ba1\u7b97\u5f97\u5230\u7684TCP\u7a97\u53e3\u4e3a\u57fa\u51c6\uff0c\u5728\u8fd9\u4e2a\u503c\uff08\u5982\u4e0a\u9762\u4e3a230KByte\uff09\u7684\u57fa\u7840\u4e0a\uff0c\u5347\u9ad8\u6216\u8005\u964d\u4f4eTCP\u7a97\u53e3\u5927\u5c0f\uff0c\u53ef\u4ee5\u5f97\u5230\u4e00\u4e2a\u6027\u80fd\u7684\u63d0\u5347\u3002[\/v_warn]<\/p>\n

[v_error]-w, \u2013window #[KM] TCP window size (socket buffer size)
\nwindow szie \u5c31\u662fsocket buffer size\uff0c\u5f53\u4e24\u7aef\u4e0d\u7edf\u4e00\u7684\u65f6\u5019\uff0c\u4f1a\u9020\u6210\u4f20\u8f93\u901f\u7387\u4e0b\u964d\uff0c\u5f71\u54cd\u771f\u5b9e\u7684\u6d4b\u91cf\u7ed3\u679c
\n\u6240\u4ee5\u5efa\u8bae\u5728iperf\u6d4b\u8bd5\u7684\u65f6\u5019\uff0c\u5728server\u548cclient\u7aef\u90fd\u52a0\u4e0a-w\u7684\u53c2\u6570
\niperf -s -w 1M
\niperf -c 192.168.0.1 -w 1M -i 1 -t 5[\/v_error]<\/p>\n

iperf\u5e38\u7528\u9009\u9879
\n\u3000
\niperf\u9009\u9879\u5206\u4e3a \u901a\u7528\u9009\u9879\u3001\u670d\u52a1\u7aef\u7279\u5b9a\u9009\u9879\u4ee5\u53ca\u5ba2\u6237\u7aef\u7279\u5b9a\u9009\u9879<\/p>\n

\u901a\u7528\u9009\u9879
\n-f <kmKM> \u62a5\u544a\u8f93\u51fa\u683c\u5f0f\u3002 [kmKM] format to report: Kbits, Mbits, KBytes, MBytes
\n-i <sec> \u5728\u5468\u671f\u6027\u62a5\u544a\u5e26\u5bbd\u4e4b\u95f4\u6682\u505cn\u79d2\u3002\u5982\u5468\u671f\u662f10s\uff0c\u5219-i\u6307\u5b9a\u4e3a2\uff0c\u5219\u6bcf\u96942\u79d2\u62a5\u544a\u4e00\u6b21\u5e26\u5bbd\u6d4b\u8bd5\u60c5\u51b5,\u5219\u5171\u8ba1\u62a5\u544a5\u6b21
\n-p \u8bbe\u7f6e\u670d\u52a1\u7aef\u76d1\u542c\u7684\u7aef\u53e3\uff0c\u9ed8\u8ba4\u662f5001
\n-u \u4f7f\u7528UDP\u534f\u8bae\u6d4b\u8bd5
\n-w n<K\/M> \u6307\u5b9aTCP\u7a97\u53e3\u5927\u5c0f
\n-m \u8f93\u51faMTU\u5927\u5c0f
\n-M \u8bbe\u7f6eMTU\u5927\u5c0f
\n-o <filename> \u7ed3\u679c\u8f93\u51fa\u81f3\u6587\u4ef6<\/p>\n

\u670d\u52a1\u7aef\u9009\u9879
\n-s iperf\u670d\u52a1\u5668\u6a21\u5f0f
\n-d \u4ee5\u540e\u53f0\u6a21\u5f0f\u8fd0\u884c\u670d\u52a1\u7aef
\n-U \u8fd0\u884c\u4e00\u4e2a\u5355\u4e00\u7ebf\u7a0b\u7684UDP\u6a21\u5f0f<\/p>\n

\u5ba2\u6237\u7aef\u9009\u9879
\n-b , –bandwidth n[KM] \u6307\u5b9a\u5ba2\u6237\u7aef\u901a\u8fc7UDP\u534f\u8bae\u53d1\u9001\u6570\u636e\u7684\u5e26\u5bbd\uff08bit\/s\uff09\u3002\u9ed8\u8ba4\u662f1Mbit\/s
\n-c <ServerIP> \u4ee5\u5ba2\u6237\u7aef\u6a21\u5f0f\u8fd0\u884ciperf\uff0c\u5e76\u4e14\u8fde\u63a5\u81f3\u670d\u52a1\u7aef\u4e3b\u673aServerIP\u3002 eg: iperf -c <server_ip>
\n-d \u53cc\u5411\u6d4b\u8bd5
\n-t \u6307\u5b9aiperf\u5e26\u5bbd\u6d4b\u8bd5\u65f6\u95f4\uff0c\u9ed8\u8ba4\u662f10s\u3002 eg: iperf -c <server_ip> -t 20
\n-P \u6307\u5b9a\u5ba2\u6237\u7aef\u5e76\u53d1\u7ebf\u7a0b\u6570\uff0c\u9ed8\u8ba4\u53ea\u8fd0\u884c\u4e00\u4e2a\u7ebf\u7a0b\u3002 eg,\u6307\u5b9a3\u4e2a\u7ebf\u7a0b : iperf -c <server_ip> -P 3
\n-T \u6307\u5b9aTTL\u503c <\/p>\n

\u5982\u679c\u9700\u8981\u8fdb\u884c\u4e0a\u4e0b\u884c\u6d4b\u8bd5\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u53cc\u5411\u6d4b\u8bd5\uff0c\u6d4b\u8bd5\u5982\u4e0b\uff1a<\/p>\n

[root@master ~]# iperf -s
\n————————————————————
\nServer listening on TCP port 5001
\nTCP window size: 85.3 KByte (default)
\n————————————————————
\n[ 4] local 192.168.159.135 port 5001 connected with 192.168.159.136 port 56617
\n————————————————————
\nClient connecting to 192.168.159.136, TCP port 5001
\nTCP window size: 19.3 KByte (default)
\n————————————————————
\n[ 5] local 192.168.159.135 port 48055 connected with 192.168.159.136 port 5001
\n[ ID] Interval Transfer Bandwidth
\n[ 4] 0.0- 2.0 sec 528 MBytes 2.20 Gbits\/sec
\n[ 5] 0.0- 2.0 sec 425 MBytes 1.78 Gbits\/sec<\/p>\n

[root@minion ~]# iperf -c 192.168.159.135 -t 2 -d
\n————————————————————
\nServer listening on TCP port 5001
\nTCP window size: 85.3 KByte (default)
\n————————————————————
\n————————————————————
\nClient connecting to 192.168.159.135, TCP port 5001
\nTCP window size: 174 KByte (default)
\n————————————————————
\n#\u6ce8\u610f\u770b\u4e0b\u9762\u4e24\u884c\uff1a
\n[ 5] local 192.168.159.136 port 56617 connected with 192.168.159.135 port 5001
\n[ 4] local 192.168.159.136 port 5001 connected with 192.168.159.135 port 48055
\n[ ID] Interval Transfer Bandwidth
\n[ 5] 0.0- 2.0 sec 528 MBytes 2.21 Gbits\/sec
\n[ 4] 0.0- 2.0 sec 425 MBytes 1.77 Gbits\/sec<\/p>\n

#[5]\u6807\u5fd7\u5f00\u5934\u7684\u662f\u4e0a\u884c\u6d4b\u8bd5\uff0c\u56e0\u4e3aserver\u7aef\u7aef\u53e3\u624d\u662f5001\u3002\u76f8\u5e94\u7684\uff0c[4]\u6807\u5fd7\u5f00\u5934\u7684\u662f\u4e0b\u884c\u6d4b\u8bd5\u3002\u540e\u9762\u7684\u5e26\u5bbd\u6d4b\u8bd5\u6253\u5370\u7684\u65f6\u5019\uff0c\u90fd\u662f\u4ee5[5]\u3001[4]\u6807\u8bb0\u6765\u533a\u5206\u662f\u4e0a\u884c\u8fd8\u662f\u4e0b\u884c\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u7f51\u7edc\u7684\u4e3b\u8981\u6027\u80fd\u53c2\u6570\u5305\u62ec\u5e26\u5bbd\uff0c\u65f6\u5ef6\uff0c\u6296\u52a8\u548c\u4e22\u5305\u7387\uff0c\u8fd9\u4e9b\u7528\u4e00\u4e2a\u540d\u8bcd\u4ee3\u66ff\uff0c\u5c31\u662fQOS\uff08\u670d\u52a1\u8d28\u91cf\uff09\u3002 \u56fe\u4e2dD1\uff0cD2\u5206 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-2332","post","type-post","status-publish","format-standard","hentry","category-net"],"_links":{"self":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/2332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2332"}],"version-history":[{"count":6,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/2332\/revisions"}],"predecessor-version":[{"id":2342,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/2332\/revisions\/2342"}],"wp:attachment":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2332"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2332"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}