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Cat8 is pointless with gigabit equipment as far as speed goes. Cat6 will do 10gig, you just had bad cables.
Yep. I'm running 1/1Gbps wan connection over cat5e just fine. Even on very noisy environment at work with a longish run (70+ meters) we ran pretty damn stable 1/1Gbps over good quality cat7.
I tried running a 1/1Gbps connection over Cat5e at home too, but for some reason, I couldn’t get it to connect properly. Ended up switching to Cat6, and it finally stabilized. I’m still scratching my head over why the Cat5e didn’t work as expected.
At work where cable runs are usually made by maintenance people the most common problem is poor termination. They often just crimp a connector instead of using patch panels/sockets and unwind too much of the cable before connector which causes all kinds of problems. With proper termination problems usually go away.
But it can be a ton of other stuff too. Good cable tester is pretty much essential to figure out what's going on. I'm using 1st gen version of Pocketethernet and it's been pretty handy, but there's a ton of those available, just get something a bit better than a simple indicator with blinking leds which can only indicate if the cable isn't completely broken.
Wonder if the cables replaced by OP were user-made, not commercial cables, that were our together incorrectly.
They had been collected from various ISP provided modems and routers I've purchased over the years.
At least in here some of the older modems, specially from ADSL-era, only had two pairs in them, so they were only good up to 100Base-T, which is roughly 7MB/s. So maybe check if that's the case and throw those into recycling bin.
100m is the spec max. More than that, you need a powered repeater (i.e. baby switch). And you won't get 100m if you have bad cables.
I once saw a run in a cruise terminal, out of the cruise ship, down the gangway, along the terminal hallway, and through two more little switches just sitting on the floor next to an outlet. Not sure why they needed that run, but that's what they did and it worked.
Yes, I was agreeing with you. Although as I mentioned, it's technically 100m, which is 328 feet and one inch. And the spec also allows up to 5m of patch cable on each end, which I don't think I knew.
But that's the spec target. Low-quality cable, physical damage, or environmental conditions like interference may reduce the actual max in practice. You might be able to push it with cat6 and up, but the spec still only says 100m.
Copper core versus copper clad aluminum is going to matter here too. Both will claim to hit the spec, but you're more likely to get there with the expensive copper only.
Yeah and don't forget good terminations. I've seen a lot of people not getting the speeds they could get just because they used cheap plugs/connectors.