10Gbits/s tested at 91m on cat5e

https://www.youtube.com/watch?v=zACK7Aka4Us

Probaby not the most scientific test but for an average Dave test, 5e does pretty well.

Suppose in the same way that you could take a Porsche 911 GT3 RS and take it down to Asda Tyres and put some best of MiC cheapies on it before heading off on a 300+ kph sojourn on the nearest racetrack or autobahn.

...YMMV 🤣

[I didn't watch it.]

I didn't watch it either, as there's no point.

* Much cable sold as "Cat5" or "Cat5e" actually meets higher standards

* The standards allow for a certain amount of margin for successful operation (allowing for induced noise, termination losses, manufacturer variations etc).

Therefore it may well work in one environment and at one point in time, but at much reduced margin. On a different day, or in an environment with more noise, it might fail or give an unacceptable bit error rate.

If you want to install a 10G copper link over 90m and have confidence that it will work *reliably* and *consistently*, you use cable certified to Cat6A. End of story.

In reply to a post by Taras:

Probaby not the most scientific test but for an average Dave test, 5e does pretty well.

Shows that if you just need it between a couple of Mac Mini's in your home lab, its likely you will "get away" with 10 GigE on much older cables.

If you're spending on 10 GigE capable hardware and switching and scrimping on cabling then something else is wrong with you

If you're spending a couple of grand on a couple of Mac Mini's with 10G Ethernet ports and you can't stretch to some half decent network cables....then I'd also say something else is wrong 😎

Then again that's pretty lame/boring/boo hiss, just wouldn't get the faintest eyeball or clicks these days: hey ma watch me get 400G on some old plastic tube I found in the garage...🤣

Edited by Pheasant (Sat 21-Dec-24 17:18:20)

In reply to a post by Pheasant:

Then again that's pretty lame/boring/boo hiss, just wouldn't get the faintest eyeball or clicks these days: hey ma watch me get 400G on some old plastic tube I found in the garage...🤣

Ho Ho Ho. 🎅🎄🎄

Edited by jchamier (Sat 21-Dec-24 17:32:16)

Nice segue into the season of cheer and merriment 😅 Here's a merry Xmas to you too JC 🎅🎄🎅

I assume that the packet loss is off the chart despite negotiating a 10Gb link, hence the speeds dropping to half where they want to be.

Would have been more interesting to take 100m of Cat5e and chopping 5m off it until it certifed.

Edited by jpm (Sat 21-Dec-24 18:23:24)

In reply to a post by jpm:

I assume that the packet loss is off the chart despite negotiating a 10Gb link, hence the speeds dropping to half where they want to be.

Would have been more interesting to take 100m of Cat5e and chopping 5m off it until it certifed.

Potentially as both sides support NBASE-T it's using downshifting to go to 5Gb as 10Gb wasn't viable. The straight 10GBASE-T spec doesn't allow this, the NBASE-T spec that provides the 2.5Gb and 5Gb speeds in between does. If a port only has 1Gb and 10Gb it's running 10GBASE-T, if it has the other two it's NBASE-T. Downshifting will lower rate depending on cable quality.

Then there's Andrews & Arnold's ADSL over wet string...
https://www.revk.uk/2017/12/its-official-adsl-works-...

I guess that's what OR use the blue rope for

Cheers!