The iPerf3 utility allows you to measure the maximum network bandwidth between two network nodes. It can utilize various timing parameters, protocols, streams, and more. This is a cross-platform client-server program and it's free to use.
It has the capability to generate different types of traffic for network bandwidth analysis. Multi-threading is supported through client-side parameters. By default, the test is performed from the client to the server. To perform a reverse test from the server to the client, use the -R flag.
You can download it here: https://iperf.fr/iperf-download.php
C:\Distr\iperf-3.1.3-win64\iperf-3.1.3-win64>iperf3.exe /?
iperf3: parameter error - must either be a client (-c) or server (-s)
Usage: iperf [-s|-c host] [options]
iperf [-h|--help] [-v|--version]
Server or Client:
-p, --port # server port to listen on/connect to
-f, --format [kmgKMG] format to report: Kbits, Mbits, KBytes, MBytes
-i, --interval # seconds between periodic bandwidth reports
-F, --file name xmit/recv the specified file
-B, --bind <host> bind to a specific interface
-V, --verbose more detailed output
-J, --json output in JSON format
--logfile file send output to a log file
-d, --debug emit debugging output
-v, --version show version information and quit
-h, --help show this message and quit
Server specific:
-s, --server run in server mode
-D, --daemon run the server as a daemon
-I, --pidfile file write PID file
-1, --one-off handle one client connection then exit
Client specific:
-c, --client <host> run in client mode, connecting to <host>
-u, --udp use UDP rather than TCP
-b, --bandwidth #[KMG][/#] target bandwidth in bits/sec (0 for unlimited) (default 1 Mbit/sec for UDP, unlimited for TCP) (optional slash and packet count for burst mode)
-t, --time # time in seconds to transmit for (default 10 secs)
-n, --bytes #[KMG] number of bytes to transmit (instead of -t)
-k, --blockcount #[KMG] number of blocks (packets) to transmit (instead of - t or -n)
-l, --len #[KMG] length of buffer to read or write (default 128 KB for TCP, 8 KB for UDP)
--cport <port> bind to a specific client port (TCP and UDP, default : ephemeral port)
-P, --parallel # number of parallel client streams to run
-R, --reverse run in reverse mode (server sends, client receives)
-w, --window #[KMG] set window size / socket buffer size
-M, --set-mss # set TCP/SCTP maximum segment size (MTU - 40 bytes)
-N, --no-delay set TCP/SCTP no delay, disabling Nagle's Algorithm
-4, --version4 only use IPv4
-6, --version6 only use IPv6
-S, --tos # set the IP 'type of service'
-Z, --zerocopy use a 'zero copy' method of sending data
-O, --omit # omit the first n seconds
-T, --title str prefix every output line with this string --get-server-output get results from server
--udp-counters-64bit use 64-bit counters in UDP test packets
[KMG] indicates options that support a K/M/G suffix for kilo-, mega-, or giga-
iPerf3 homepage at: http://software.es.net/iperf/
Report bugs to: https://github.com/esnet/iperf
Example of Usage:
On the server, run: iperf3.exe -s
On the client, run:
iperf3.exe -с 10.10.12.8 -P 5 -R
10.10.12.8 - The IP address of the server.
-P 5 - Five threads.
-R - Reverse transmission from server to client.
Result:
