man iperf Command

Man page for apt-get iperf Command

Man Page for iperf in Linux

Ubuntu Man Command : man iperf

Man Iperf  Command

This tutorial shows the man page for man iperf in linux.

Open terminal with 'su' access and type the command as shown below:
man iperf

Result of the Command Execution shown below:

IPERF(1)                                                                    User Manuals                                                                    IPERF(1)

iperf perform network throughput tests

iperf s [ options ]

iperf c server [ options ]

iperf u s [ options ]

iperf u c server [ options ]

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 generate traffic).

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
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
bind to , 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)

s, server
run in server mode

U, single_udp
run in single threaded UDP mode

D, daemon
run the server as a daemon

b, bandwidth n[KM]
set target bandwidth to n bits/sec (default 1 Mbit/sec). This setting requires UDP ( u).

c, client
run in client mode, connecting to

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
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
set TCP congestion control algorithm (Linux only)

Controls the size of TCP buffers.

This section needs to be filled in.

Exit statuses are inconsistent. The threading implementation is rather heinous.

Iperf was originally written by Mark Gates and Alex Warshavsky. Man page and maintence by Jon Dugan . Other contributions from
Ajay Tirumala, Jim Ferguson, Feng Qin, Kevin Gibbs, John Estabrook , Andrew Gallatin , Stephen Hemminger



Related Topics

Apt Get Commands