iPerf How to Test Bandwidth and Throughput
Вставка
- Опубліковано 7 вер 2024
- This video shows you how to use iPerf to test network bandwidth and the throughput on your network.
Written instructions with more examples:
networkverge.c...
iPerf download link:
iperf.fr/iperf...
In this video I use two Windows 10 computers; one acts as the client and the other acts as the iPerf server. iPerf is also supported on Linux and MacOS x.
The steps to using the iPerf command are very easy.
Step 1: Download and install iPerf.
Step2: Enable the iPerf server with the iperf3 -s command.
Step 3: Start the client with iperf3 -c "Server-IP" command.
iPerf was designed as a tool for tuning network performance but I think it works great as a tool for testing throughput and verifying bandwidth usage.
For more networking tutorials check out my site:
networkverge.com
Way more helpful than GPT-4o, thank you for this
If you add -P (uppercase P)for parallel streams and run say, 10 at -b 0 you should see a lot closer to 10g. This is for many reasons, but mostly because this uses more pcie lanes. You can also run the server and client sides in both directions using a second iperf3 instance on both machines.
Did you meant bandwidth as 0, can u pls share the command
I am running -u for udp packets transmission at -b 1000m bandwidth.
What is the allowable dataloss and bandwidth for 1g ethernet (copper/optics)
Excellent Tutorial, straight to the point thx :)
Excellent tutorial. Thank you!
Very useful, thank you so much! Do you know of any other tools like this for testing SNMP connections?
Great explanation, thanks!
I was kinda curious why transfers to my local server took so long. I should be on a 1G connection, its nothing fancy. But didnt expect to see only 50Mbps.
Guess i found a bottleneck haha.
On a different part of my network i get +900 between two devices
Simple and to the point! Great video!
perfect , show the other useful options in iperf , can we test udp and test with certain frame sizes like 64byte.
Tried getting to your website for the Written instructions, but it's not connecting. Great video BTW!!
my 10Gb NIC is only getting 2gb one way and if i try the other PC as the host it cant even connect to the other PC yet i can access it with the same IP via explorer
Hi, Thanks for your video. I have a problem with Client connecting to the server. The iperf times out from the client. Would you kindly advise please. Regards Tab
Likely firewall related on the server side. Be sure to allow the configured ports through the firewall
how do i make it output continuously on linux? it only outputs once for me
Very helpful. thanks.
Test is unaccurate due to the fact that its not sending and receiving on the server side. So open the network monitor on the server and as per your video 0mbps on the servers sending side. Yes you can do a a normal test and a -R but its still not at the same time which does not simulate the real bandwidth test.
I usually do a iperf3 - c (ip) -P 10 t 120 -V and a -R. Running a --bidir does not work. UDP unaccurate too.
Cristian Underpass
How do you know you server IP address ?
just do a simple ipconfig command in cmd on the server side
Hi there
This is just doing One way traffic test. Shouldnt it be doing a check on send and receive ? Plus there is no latency details ??
I suggest changing the title of your video to include “on Windows” so it’s clear that it’s not a general tutorial for multiple operating systems.
It is for multiple systems. It works the same on mac and UX
You need to edit your video, this was poorly done
How about you share your great video showing how this is done. Video was perfect and taught me what I needed.
Anonymousdick6786, you need to edit your comment, it was poorly written and unspecific.