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Ethernet Is Still Going Strong After 50 Years

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Re: Ethernet Is Still Going Strong After 50 Years

#191

Post by ethbr1 »

ToucanLoucan wrote: post #112
noir_lord wrote: post #101

Earlier quoted context omitted.

Can't tell if serious or not so bravo. On the assumption you are, just climb in the loft and drag the cable over, it's not that bad, I've been in and out of lofts since my early teens doing house re-wires with my father and never put my foot through a ceiling.

Same. I spent a good amount of time in our house the first fall setting up PoE cameras, which involved much time crawling around the attic. Hell of a workout and can be unpleasant but extremely doable.

Agreed. It's not rocket science.

Unless you're mobility limited, everything in an attic should be accessible.

The main considerations are:

   - Do work when it's cold outside. Do not be up there when it's warm and sunny
   - Wear a breathing mask. N95 / painter's mask works fine. Glass insulation particles aren't lethal, but also aren't stuff you want in lungs
   - Think twice. Then move. Slowly. And feel you're standing on something stable before fully transferring your weight
   - Mind your head. The roof plywood will likely have roofing nails sticking through
   - Bring 2 lights, preferably one lantern-type. That way you can leave one en route
If it's blown insulation, you can sweep it over and expose joists to stand on.

They're regularly spaced from the exterior wall to an interior beam, all running the same direction, and the support boards up to the roof will run down to one.

Re: Ethernet Is Still Going Strong After 50 Years

#192

Post by ndriscoll »

stephenr wrote: post #102
hnlmorg wrote: post #79

Earlier quoted context omitted.

Not the commenter but I’ve heard people make statements like that time and time again, only for those limits to be obliterated a few years later. The thing is, the moment a new upper bound becomes available, developers find a way to use it. It’s like the freeway problem that adding more roads ironically adds to congestion. Take storage, the greater the storage capacity of media increased, the larger game assets becam…

> 4k on a lot of streaming services is compressed to hell and back to work with people on slower internet connections. A 4K UltraHD Bluray (that's 100GB for one movie) has a maximum bitrate of "just" 144Mbps. If you're suggesting online streaming services have some swathe of content that's (checks notes) in excess of 7x the bitrate used for 4K Bluray discs, I'd love to hear about it. > video game streaming services a…

AFAIK we're still very far below the dynamic range human eyes are capable of seeing, so there's plenty of room to need to up the bit depth (and rate) for video if displays can improve. Our color gamuts also do not cover human vision.

Re: Ethernet Is Still Going Strong After 50 Years

#193

Post by Waterluvian »

zylent wrote: post #83
Waterluvian wrote: post #59

Earlier quoted context omitted.

I have the exact situation. Like 8 coax lines in the home but no Ethernet. Can someone point me in a consumer-ready direction? I imagine I can do this: - put cable modem in basement where line comes in. - do something that goes from router to into 2-3 coax lines heading into the home. - have some little box in those rooms that expose an Ethernet port.

I’ve used this model for a few networks and had a good time. Minimal setup and supports a WPS-like security. https://a.co/d/4aC81NS See the diagram in this guide: https://www.motorolacable.com/documents/MM1025-QuickStart-re... Note both the usage of the PoE (point of entry, not power) filter, as well as the MoCA network encapsulating both DOCSIS and Ethernet traffic. Some set-top boxes and modems are MoCA compatible,…

Oh wow I don’t even need to isolate my incoming cable Internet from it.

Thank you for these links. This is exactly what I needed to move forward.

Re: Ethernet Is Still Going Strong After 50 Years

#194

Post by hamburglar »

burntalmonds wrote: post #133
tzs wrote: post #80

Earlier quoted context omitted.

> We moved, and it's not feasible to run ethernet everywhere in our current home. However, whoever built the home ran coax to nearly every room in the house - it's a bit ridiculous How old is the house? If its more than 20ish years old running coax everywhere was a great choice. That would be before CAT5e cable so if they had went with ethernet cable instead of coax you'd be looking at 100 Mb/s. If it was built befor…

Lay some sheets of plywood down in the attic. Then you'll be able to move around easily. Up there you have direct access to the walls of your rooms so you can drill a hole and drop ethernet cable down behind the wall.

And on the plywood, go buy a 4x8 foot sheet and cut it into 4 4x2 foot sheets. These are easy to carry into your attic one or two at a time and you can lay them down as “tiles” that span 4 16in joists. Easy to just lay them down (screwed to the joists) to where you need to get and also continue extending your tiles later if you want to either get further or complete your “floor” for storage purposes. And you can still take up one tile at a time if you need to get access to something like the top side of a ceiling light fixture.

Re: Ethernet Is Still Going Strong After 50 Years

#195

Post by tsimionescu »

KaiserPro wrote: post #115
eqvinox wrote: post #41

Earlier quoted context omitted.

Jumbo frames are not a thing on the internet. The internet has fossilized at 1500 byte MTU.

> The internet has fossilized at 1500 byte MTU. the internet has a whole bunch of non ethernet stuff, a lot of which has different frame sizes. Its totally possible that backhaul is running jumbo frames, or something like it, but you'd never really know that. Conversely ADSL has odd frame sizes(inherited from ATM; 48 bytes if I remember correctly), but you don't see that because its hidden from you. Cable has a frame…

The bottom line is that if you ever send an IP frame larger than 1500 bytes outside of your own network, it's most likely that it will never reach its destination. Especially for IPv6.

Re: Ethernet Is Still Going Strong After 50 Years

#196

Post by manual89 »

stewx wrote: post #128
breadwinner wrote: post #103

Metcalfe, inventor of ethernet, predicted in 1995 that the internet would collapse the next year, because the underlying tech couldn't possibly scale. He ended up having to literally eat his own words. See: https://en.wikipedia.org/wiki/Robert_Metcalfe#:~:text=24%5D%...

Wow, a truly rare instance of literally eating your words!

McAfee can't hold a candle to this man.

Re: Ethernet Is Still Going Strong After 50 Years

#197

Post by mmcnl »

jmathai wrote: post #33

This is a comment for folks in homes with coax run for cable TV. Ethernet is great. I wired ethernet to most rooms in our remodel and set up wired access points or jacks in the office to connect directly to my computer. The speeds and consistency over wifi and mesh were remarkable. Especially consistency. We moved, and it's not feasible to run ethernet everywhere in our current home. However, whoever built the home r…

MoCA is great but the downside is that requires two active components. And leveraging PoE becomes impossible.

Also, why not replace the coax cable with UTP? Tape some fish tape to your coax cable, and gently pull the coax cable on the other end. Then ape some UTP to the other end of the fish tape and pull again slowly. Pretty easy actually.

Re: Ethernet Is Still Going Strong After 50 Years

#198

Post by sonicanatidae »

tzs wrote: post #80
jmathai wrote: post #33

This is a comment for folks in homes with coax run for cable TV. Ethernet is great. I wired ethernet to most rooms in our remodel and set up wired access points or jacks in the office to connect directly to my computer. The speeds and consistency over wifi and mesh were remarkable. Especially consistency. We moved, and it's not feasible to run ethernet everywhere in our current home. However, whoever built the home r…

> We moved, and it's not feasible to run ethernet everywhere in our current home. However, whoever built the home ran coax to nearly every room in the house - it's a bit ridiculous How old is the house? If its more than 20ish years old running coax everywhere was a great choice. That would be before CAT5e cable so if they had went with ethernet cable instead of coax you'd be looking at 100 Mb/s. If it was built befor…

This splice is the only issue, really.

Re: Ethernet Is Still Going Strong After 50 Years

#199

Post by wannacboatmovie »

tzs wrote: post #80
jmathai wrote: post #33

This is a comment for folks in homes with coax run for cable TV. Ethernet is great. I wired ethernet to most rooms in our remodel and set up wired access points or jacks in the office to connect directly to my computer. The speeds and consistency over wifi and mesh were remarkable. Especially consistency. We moved, and it's not feasible to run ethernet everywhere in our current home. However, whoever built the home r…

> We moved, and it's not feasible to run ethernet everywhere in our current home. However, whoever built the home ran coax to nearly every room in the house - it's a bit ridiculous How old is the house? If its more than 20ish years old running coax everywhere was a great choice. That would be before CAT5e cable so if they had went with ethernet cable instead of coax you'd be looking at 100 Mb/s. If it was built befor…

Should I be surprised that the reactions posted here range from "I stretched a cable across the ceiling like two tin cans and a string" to "I will fly a drone into my attic".

Instead of: "I took my $500k/year tech salary which I formerly spent on Teslas and cardboard apartments and just hired a competent electrician or other tradesman to pull cable to every room."

Re: Ethernet Is Still Going Strong After 50 Years

#200

Post by tsimionescu »

darkr wrote: post #69
globular-toast wrote: post #17

Earlier quoted context omitted.

Yeah, what's with that? I looked into enabling jumbo frames on my home network (just for fun, I don't really need it) and it seemed horrendous as those packets could end up on the internet and probably wouldn't work.

Your local router, if correctly configured should do fragmentation. But in 95% of use cases, jumbo frames aren’t worth the hassle.

Not for IPv6. And for IPv4, I believe few routers actually handle IP fragmentation properly or at all (which is why this was removed from IPv6).
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