iperf-2.0.5-cygwin.zip최신 윈도우 버전은 아래에서 받을 수 있습니다.
기본 사용 방법
A컴퓨터와 B컴퓨터간 사이에 네트워크 대역폭을 측정하는 예를 들어 보겠습니다.
A컴퓨터에 iperf.exe 서버 데몬을 실행시켜 놓습니다.
(iperf.exe에 -s옵션을 주면 서버가 -c 옵션을 주면 클라이언트가 됩니다.)
* 서버 데몬 실행 방법 - iperf를 다운 후 임의 위치에 압축 해제 합니다.
command창을 open한 후 해당 위치로 이동합니다.
그리고 iperf.exe -s라고 입력합니다.
B컴퓨터에서 임의 폴더에 iperf를 압축 해제후 command창으로 해당 위치로 이동합니다.
B컴퓨터에서 다음의 예와 같이 A서버에 서로 통신을 하여 대역폭을 측정합니다.
* iperf.exe -c 192.168.1.100 <-- 서버 IP를 입력합니다. 이와 같이 내부 내트워크 IP가 될수도 있고 218.50.112.113등
공인 IP가 될 수도 있으며 abcd.abc.com 과 같이 도메인도 가능합니다.
제 측정 결과는 서버의 WAN Upload Bandwidth이 45MB이지만
클라이언트의 WAN Bandwidth가 5MB라서 낮은 Bandwidth가 나와버렷네요..
자세한 메뉴얼은 아래와 같습니다.
User Manuals
NAME
iperf - perform network throughput tests
SYNOPSIS
iperf -s [ options ]
iperf -c server [ options ]
iperf -u -s [ options ]
iperf -u -c server [ options ]
DESCRIPTION
iperf is a tool for performing network throughput measurements. It can
test either TCP or UDP throughput. To perform an iperf test the user
must establish both a server (to discard traffic) and a client (to gen-
erate traffic).
GENERAL OPTIONS
-f, --format
[kmKM] format to report: Kbits, Mbits, KBytes, MBytes
-h, --help
print a help synopsis
-i, --interval n
pause n seconds between periodic bandwidth reports
-l, --len n[KM]
set length read/write buffer to n (default 8 KB)
-m, --print_mss
print TCP maximum segment size (MTU - TCP/IP header)
-o, --output <filename>
output the report or error message to this specified file
-p, --port n
set server port to listen on/connect to to n (default 5001)
-u, --udp
use UDP rather than TCP
-w, --window n[KM]
TCP window size (socket buffer size)
-B, --bind <host>
bind to <host>, an interface or multicast address
-C, --compatibility
for use with older versions does not sent extra msgs
-M, --mss n
set TCP maximum segment size (MTU - 40 bytes)
-N, --nodelay
set TCP no delay, disabling Nagle's Algorithm
-v, --version
print version information and quit
-V, --IPv6Version
Set the domain to IPv6
-x, --reportexclude
[CDMSV] exclude C(connection) D(data) M(multicast) S(settings)
V(server) reports
-y, --reportstyle C|c
if set to C or c report results as CSV (comma separated values)
SERVER SPECIFIC OPTIONS
-s, --server
run in server mode
-U, --single_udp
run in single threaded UDP mode
-D, --daemon
run the server as a daemon
CLIENT SPECIFIC OPTIONS
-b, --bandwidth n[KM]
set target bandwidth to n bits/sec (default 1 Mbit/sec). This
setting requires UDP (-u).
-c, --client <host>
run in client mode, connecting to <host>
-d, --dualtest
Do a bidirectional test simultaneously
-n, --num n[KM]
number of bytes to transmit (instead of -t)
-r, --tradeoff
Do a bidirectional test individually
-t, --time n
time in seconds to transmit for (default 10 secs)
-F, --fileinput <name>
input the data to be transmitted from a file
-I, --stdin
input the data to be transmitted from stdin
-L, --listenport n
port to recieve bidirectional tests back on
-P, --parallel n
number of parallel client threads to run
-T, --ttl n
time-to-live, for multicast (default 1)
-Z, --linux-congestion <algo>
set TCP congestion control algorithm (Linux only)
ENVIRONMENT
TCP_WINDOW_SIZE
Controls the size of TCP buffers.
DIAGNOSTICS
This section needs to be filled in.
BUGS
Exit statuses are inconsistent. The threading implementation is rather
heinous.
AUTHORS
Iperf was originally written by Mark Gates and Alex Warshavsky. Man
page and maintence by Jon Dugan <jdugan at x1024 dot net>. Other con-
tributions from Ajay Tirumala, Jim Ferguson, Feng Qin, Kevin Gibbs,
John Estabrook <jestabro at ncsa.uiuc.edu>, Andrew Gallatin <gallatin
at gmail.com>, Stephen Hemminger <shemminger at linux-foundation.org>
SEE ALSO
http://iperf.sourceforge.net/
NLANR/DAST APRIL 2008 IPERF(1)