WEBVTT

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consumer Ethernet has pretty much followed the rule of each generation

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having 10 times the maximum speed of the previous one however the game is

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changing there are actually some quarter and half measures in the works yes my

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friends that's right you're going to be seeing 2.5 gigabit and 5 gigabit

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Ethernet devices popping up all over the place but why to answer we spoke to ben

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hacker and ben benson over at Intel and we'd like to thank them for their contributions to this episode as

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internet speeds get faster it's becoming clear that we're going to need something

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that is faster than the gigabit Ethernet that's supported by lots of our home

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modems and routers even if you don't have fiber to the home new versions of

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the docsis cable internet standard can support speeds beyond one gigabit per

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second in fact two gigabit connections are becoming common in tech mechas like

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south korea and japan which is all fine and good but why bother with this

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tweener stuff when you can go out and buy a 10 gigabit network card and 10

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gigabit switch today well the issue is that the 10 gigabit standard doesn't

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work very well over most of the existing Ethernet cabling that's out there so if

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you go out and buy a theoretical cable

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modem with a 10 gig port on the back of it chances are that you're going to end

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up needing to change out every network cable in your house in order to get the

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full benefit of it and in commercial installations this problem is much worse

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you see many buildings have been pre-wired with Ethernet jacks in the

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walls that use the older cat5e cable standard which was designed to handle up

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to one gigabit per second over a distance of 100 meters and for a long

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time that was just fine but 10 gigabit Ethernet requires a newer cable called

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cat6 to go 50 meters and an even higher

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end cable called cat6a with the a4

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augmented to do the full 100 meters the reason that cat5e can't carry a 10

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gigabit signal effectively over those distances is that it doesn't have as

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much protection against interference and crosstalk so what this means is that

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getting 10 gigabit to work in many places would mean ripping the old cables

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out of the wall and putting in new ones and that is alongside all of the

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equipment in the networking room and all of the client pcs that is a tough triple

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whammy to the old corporate pocketbook so the powers that be are instead

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introducing a two and a half gigabit Ethernet solution because it turns out

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that a cat 5e cable that was built to spec can actually handle a two and a

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half gigabit per second signal just fine over 100 meters and even a 5 gigabit per

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second signal will usually work the hold up was just that the industry

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doesn't like to bother rolling out a new spec for less than 10 times the previous

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speed because they typically view it as not being worth the effort it takes

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but given how excessive the 10 gigabit speed is for general consumers and the

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fact that 10 gigabit equipment is still a lot more expensive the industry has

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finally developed an interest in being able to sell faster equipment at a price

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that consumers can actually handle so faster Ethernet speeds then are going to

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have immediate benefits for enthusiasts and prosumers who want the additional

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bandwidth for things like transferring files between pcs and network attached

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storage or running home media servers as for the regular consumer

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well the benefits today might actually be limited but two and a half or five

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gigabit Ethernet jacks rolling out in computers network adapters and modems

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over the coming years means that our underlying infrastructure is going to be

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ready for future advancements like 8k streaming video to multiple household

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members and other amazing technology that makes it so we just don't actually

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us section thanks for watching guys like dislike check out our other videos and

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leave a comment if you have a suggestion for a future fastest possible episode we

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really do read them sometimes they're bad and we don't take

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them but we do read them