[HOWTO] Test My Network Speed?! [iPerf & JPerf]

[@greatestunknown]

I usually don't leave comments, but in this case I had to. This is a great video, informative, not overly complicated, funny, and keeps your attention. There are so many things to relate to when watching this. Good job man. I'm glad I stopped by. Now I'm gonna check all my cables for 'Cat5' !

[@Behfor]

That's awesome!! I'm very happy you found this video useful :-) Thanks so much for stopping by, because your comment just made my day! Thanks 😃🙏

[@ralphm923]

Really awesome video! Never knew jperf existed. Thx

[@Behfor]

Thanks! I'm glad it was useful for you :-)

[@DIYTelecom]

Excellent work. Just proves you don’t need to be a rocket scientist to troubleshoot network bottle-necks. 😊👍

[@ladkiusa]

Great tutorial! I really needed this refresher tonight since I am headed over to El Capitan theater in Hollywood to run some BW tests on a couple of circuits. Thanks Again!

[@Behfor]

Glad you liked this video, thanks 😀👍

[@keatonjeremy2246]

Sorry to be off topic but does someone know a trick to get back into an Instagram account?? I was stupid forgot my login password. I love any help you can offer me

[@hectorotis1291]

@Keaton Jeremy Instablaster ;)

[@keatonjeremy2246]

@Hector Otis thanks so much for your reply. I got to the site through google and I'm in the hacking process now. I see it takes a while so I will reply here later when my account password hopefully is recovered.

[@keatonjeremy2246]

@Hector Otis it did the trick and I now got access to my account again. I am so happy:D Thanks so much, you really help me out :D

[@FawadBilgrami]

Very well done. Now I’m thinking of also getting the same routers as yours, Asus RT-AC68U AC1900

[@nick_UponTheFallen]

Thank you for the info on iPerf it made it easy to understand, I like the extra bits about possible solution to the problem.

[@Behfor]

You're very welcome, glad you liked it 👍

[@technosaurusrex7152]

Thanks. Used this method to do some pre-testing before I upgrade to wifi 6 mesh router.

[@Behfor]

You're very welcome, glad it was useful 👍

[@jeremypk]

Excellent overview. Informative AND entertaining.

[@Behfor]

Thanks so much, glad you liked it 👍

[@mybluemars]

Great video! It was funny and informative!

[@Behfor]

Thanks :-)

[@cowboyboots9901]

Getting massive Electroboom vibes. I'm subscribing.

[@afshinkavousi617]

Thanks Behfor, it was informative and easy to digest video, keep doing good work mate.

[@Behfor]

Thank you so much for your comment! I'm glad you liked this video! It definitely motivates me to make more videos! Thanks :-)

[@andyreinoso470]

Congrats, it will help me with my masters study

[@VicedRhino]

iPerf: For when a company wants to troll people into sounding like they're saying iPerv 😂

[@tabeshforoughi1380]

Well done Sir.

[@Behfor]

Glad you liked it, Merci 🙂

[@SilentShad0W679]

Great video very useful for troubleshooting.

[@Behfor]

Thank you so much :-)

[@assyriaaaaa]

Very good video!!

[@Behfor]

Thanks 👍

[@patch5588]

Great job on the video and information. Entertaining and informative!

[@Behfor]

Thank you so much! I'm very glad you liked it :-)

[@edilmar7796]

thanks, this was very clear, regards!!

[@Behfor]

Thanks so much! I'm very glad you liked this video :-)

[@TechReflex]

THANKS A LOT MAN!!!

[@Behfor]

You're very welcome :-)

[@chessusthemyth]

Nice video! Tnks from brazil :)

[@Behfor]

Thanks you so much for watching :-) I hope to visit Brazil one day :-)

[@markdejong1984]

Great video, thanks for posting!

[@Behfor]

Glad you enjoyed it! :-)

[@fidz4261]

Useful video. Thank you for sharing.

[@ashusaini15]

Excellent explain

[@Behfor]

Glad you liked it

[@ob707]

Great video

[@JackSmith-oy7rx]

Great simple video thank you

[@Behfor]

Glad you liked it 👍

[@jelespuru]

Great video. Thank you.

[@Behfor]

Glad you liked it and thanks for watching 👍

[@Jacques.krause]

Awesome video

[@Behfor]

Thanks! :-)

[@kiyero23]

it was so easy to understand, thank you.

[@SatishGupta-ln4zm]

great explanation

[@Behfor]

Thanks 😀👍

[@thierryhanot7610]

Very clear thank you !

[@Behfor]

Thank you so much for your comment! I'm glad you liked this video :-)

[@Ryan.Dias619]

Hi Behfor, I have a CAT 5E Data cable, a CAT 5E Patch cable and a CAT 5E Cross-Over cable that I found in my storage box. Can I use any cable for any connection to do this test? What is the difference between these cables?

[@Behfor]

Hi! Yes, you can use any of the CAT 5E cables for your test, but there are some differences between them: CAT 5E Data Cable (Straight-through): Typically used for connecting different devices like a computer to a router or switch. CAT 5E Patch Cable: It’s essentially a shorter straight-through cable, often used for connecting devices within a patch panel or between network devices. CAT 5E Cross-Over Cable: Designed for connecting two similar devices directly (e.g., two computers without a switch in between). For most modern devices, you can use any of them, as they automatically detect the connection type. But ideally, use the straight-through cables for standard connections.

[@Ryan.Dias619]

@@Behfor I connected the Cross-Over cable between my desktop computer and the Access Point, and the wifi got disconnected and I could not connect to the internet. After unplugging the cross-over cable and restarting the access point. I got wifi and internet back again.

[@thihakyaw8932]

Nice ! Thanks You !

[@Behfor]

You're very welcome! Glad you liked it 👍😀

[@tasleemsmg]

Perfect brother

[@AmolPatil-py6qz]

Great ....! It's very informative video. Could you please tell me can I use both (iperf & jperf) without internet..... I want to check speed of MPLS link......

[@Behfor]

Thanks! Yes you should be able to use these tools to test the speed of MPLS link

[@utherpanas]

thanks for your video, its very very helpfull for me :D

[@manuelm.a3240]

thanks for the explanation. Just one question and it is how to see the jitter graph with the bandwidth one? I use UDP traffic but it is not added. Thank you

cool stuff, did not know about those, thank you

[@Behfor]

Thanks man :-)

[@Docgy]

Great !!! Big thanks, thumbs up !! 👍👍👍

[@Behfor]

Thanks!! I'm very glad you liked it :-)

[@williegreenway5464]

Very Nice.

[@Behfor]

Thanks 👍

[@erfan_muhammad]

thanks for your sharing.. somehow im testing localhost. i use iperf3 -s and jperf to -c on my pc ip. reading bandwith jperf not tally as per jperf. mind sharing.

[@jasonback835]

Great job Thanks

[@Behfor]

Thank you so much :-)

[@tuantranhoang7539]

Wow Great Video, Thank you so so much.! From: VietNam

[@kibromtewolde2954]

its interesting , i am subscribing. what about if i test connection b/n two device in MPLS connection, could it give me the precise speed value ???

[@Behfor]

Yeah, I don't see any reason why not, thanks.

[@simply-tom]

I says it requires a server to client test, but literally, you don't have to run it on the server right? I can designate another client workstation and set it as a server and configure another client workstation and that's it. RIght?

[@Behfor]

Yes you can set a workstation as an iperf server.

[@simply-tom]

@@Behfor Ok, that sounds easy enough. I will actually run this on my network tomorrow at work. We don't have that kind of money to spend on expensive testing software so this is perfect. Our ISP only measures speed from the router to their outside connection so I will measure our internal LAN speed. Thanks again!

[@Behfor]

You're very welcome! Yeah this is a great tool for testing internal network. Good luck!

[@davesdream]

XD another helpfull and funny video. Thanks!!

[@Behfor]

Thank you so much for the support :-)

[@SilentShad0W679]

My lan on my router is only 100 megabit. If I got a gigabit switch would the devices connected to the switch be connected with a gigabit link?

[@Behfor]

That's correct, normally when 2 devices connected to the same switch want to talk to each other their data stays within the switch and if it is a Gigabit switch then their connection should be 1 Gbps too (Of course there are exceptions to this in more advanced networks when there are VLANs and routing) but if data needs to go to the router (using internet or a connection between a device connected to switch and a device connected to router) then the speed should be 100 Mbps. Thanks!

[@SilentShad0W679]

Behfor So file transfer between computer connected to the switch will be gigabit. And if it get stuff from the router it will be 100 megabits?

[@Behfor]

That's correct!

[@SilentShad0W679]

Behfor Thanks

[@cvtierney]

How would I make my Iperf server accessible from the outside world? I would like to use this tool to test my ISP. Would I just have to setup port forward rules inside my router?

[@ukswansrinagar898]

thanks

[@Behfor]

You're welcome!

[@fabienbable]

How to test connection from server to TV? I tested this with Computers and I get about 0,9 gbit/s. But it is possible that my TV isnt capable of 1 Gbit? Because I am streaming 4k movies with PLEX media server and I get buffering.

[@badboo82]

ohhh so it was the cable!!! I will get a cat6 cable then. I didn't count that detail.

[@Behfor]

Yeah in this case the problem was the cable, CAT5 is very old and it would be better to replace it with CAT6! Thanks!

[@badboo82]

@@Behfor thanks. I am looking into getting a cat6 cable. I have been using cat5 all the time lol. thanks again and great video.

[@Behfor]

you're very welcome :-)

[@safesax2002]

C.rolando Remember too that Cat5 and Cat5e are not the same. Mostly what you’re getting when you buy or get a cable with a device is Cat5e; which works perfectly fine in a home or office business setting. You don’t NEED Cat6 unless you’re going to implement 10Gb, which is used in corporate environments mostly. And even in those scenarios the speed to the PC from the switch is usually 1Gb. The 10Gb is generally used between the edge/access switch and the distribution/core switch.

[@billgufran]

Is it measuring bandwidth or throughput?

[@achmadalinasrudin8110]

terima kasih

[@mysterychemical]

4:05 Much better 🤣 That is sky ground difference.

[@jawedakhtar4475]

Good

[@abdulhannan-um6to]

I am facing a issue on fiber. My upload download speed is 20Mbps and if i upload video on google drive it uploads by taking all 20Mbps. But when i stream my bitrate fluctuates some time goes to 100's and frames drops. My isp is saying they have tested all the backend all is fine. I was streaming at 3000bitrate on same connection with 8Mbps all was fine but when I upgraded this issue occured. Can you help me

[@abdulhannan-um6to]

I am streaming on cpu ryzen 3600 and just task manager as screen

[@iam_joshua_bcxvii]

I only get 100mbits via WiFi network, even though my WiFi Router is capable of up to 1.7Gbps and laptop @ 433mbps, how do I make my laptop utilize the full 433mbps speed?,or maybe even half of it, as 100mbits is just soooo slow. Heck my actual internet could go well over 200mbits, but local network is much slower. :(

[@mrtau6279]

wow I just realized my network has mixture of different cat types :( ... replacing them all now

[@VicedRhino]

I just couldn't bear to get rid of my tabby 😭

[@ONI1013.]

Hi I got my laptop listening as a server on port 5201. But how do I stop it now?

[@Behfor]

Ctrl + c or just close the command prompt!

[@ONI1013.]

@@Behfor Ahh thank you. Thought it was more complicated than that. May I ask you another novice question: When testing my LAN speed for my IPad or iPhone back to Laptop, I get super slow speeds (60 Mbits/sec) compared to WAN speeds (950 MB/sec). Any ideas why?

[@adityajain1989]

Nice veideo

[@andychavda]

any way i can measure the WAN speed using IPERF ?

[@Behfor]

As far as I know there are some public iperf3 servers that you can use for that purpose.

[@Ryan.Dias619]

As someone who wants to move away from Windows OS after using it for 24 years (Goodbye Windows 11, Goodbye Control Panel), it would be great if you show how to install iperf on Linux OS as well. Especially old PC, old laptop which have Windows 7 and are just collecting dust in the storage room of the house.

[@LentakyuctikUctik]

but how can i test bandwidtth to router ?

[@Behfor]

Some Wireless routers allow you to install Iperf server on the router itself, if you have an Asus router with Asuswrt-Merlin firmware you should be able to do that.

[@LentakyuctikUctik]

@@Behfor I want to do on tp link, but have also mikrotik and asus.

[@Behfor]

@@LentakyuctikUctik you can look into installing 3rd party firmware like openwrt and dd-wrt, they allow you to install entware which should have the Iperf server. I havn't touched dd-wrt and openwrt for a while so make sure to do your own research too.

[@LentakyuctikUctik]

@@Behfor I tried to install openwrt on one tp link and it didn't turn out well, so I'll probably stay with the fact that I won't measure it via the router 😀.

[@Behfor]

​@@LentakyuctikUctik I see. Another option would be to hardwire a computer that is also an iPerf Server to the router. Depending on the router and the computer, this connection could be 1Gbps, 2.5Gbps, or 10Gbps. Let's assume it is 1Gbps. Now, if you use a wireless client as an iPerf client and run a speed test to the server, if the result is less than 1Gbps, this means this is the WiFi speed between the wireless client and the router. But if the result is close to 1Gbps, then you know the wired connection is the bottleneck, and your WiFi speed could be faster than 1Gbps. Hope that makes sense.

[@qasemman2601]

Can i use it if i have different LAN and routers ?

[@Behfor]

Yes, this (iperf/jperf) can be used with any routers. As long as 2 nodes are connected to each other this should work fine!

[@ruslankadyrkulov5747]

how to speed between pc and tv?

[@bitTorrenter]

None of these commands are recognized for me.

[@albertas978]

I just drop my stuff like iperf3 and other stuff into system32 folder .. it makes life easier lol

[@autumnroseavery7216]

You sound like electro boom lol

[@devikasnair5580]

WTF!!! Here I'm happy with my 50mbps😂 & you're talking about gbps..To be honest, 938mbps seems like an error for me.. 😝 In my area 200mbps is the max 😂😂

[@Behfor]

This is network speed not Internet speed! I think you probably were misunderstood, because 1 Gbps is pretty normal in wired connection.

[@devikasnair5580]

@@Behfor Both data transfer rate and bandwidth(2.4) are low here. I'm located in India :p here recently they provide upto max 1gbps only on top cities and it's about 55usd per month(4000rupees) so most of us choose 50mbps plan for 6usd per month.. (600 indian rupees) it's expensive in terms of rupees..

[@Behfor]

I understand, but this video was about internal network speed, and has nothing to do with the service provider or internet!!!. Every wireless router you buy today can provide 1 Gbps wired speed (regardless of what your internet speed is). You can use your internal network to transfer files between computers in your network without any internet connection. In this video I tested the internal network speed, no internet needed for this and you don't pay anything to anybody. I hope you got what I'm trying to say.

[@Gbhbbgvsbnjhhdchhb]

Lose the music, but otherwise excellent

[@areandersen]

Why am I getting these insane transfer speeds? lol 0.0-10.0 sec 35.8 GBytes 30.8 Gbits/sec