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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

#321

Post by imp0cat »

rini17 wrote: post #283
8zah6q7 wrote: post #263

Earlier quoted context omitted.

Unfortunately, many smart TVs use 100 Mbps RJ45 ports, so WiFi is usually faster. Some TVs allow you to plug in a USB to RJ45 adapter, but most of the USB ports are only USB 2 speed, so the practical limit is 300 Mbps. Some nice ones have USB 3 ports enabling 1 Gbps through an RJ45 adapter. I wish the manufacturers put at least gigabit (if not 2.5 Gbps) RJ45 ports on TVs.

Excuseme, what kind of content do you have with more than 100mbps bitrate?

This should answer your question: https://www.youtube.com/watch?v=PIef8iRZhLE

Re: Ethernet Is Still Going Strong After 50 Years

#322

Post by Baeocystin »

ethbr1 wrote: post #203
wannacboatmovie wrote: post #199

Earlier quoted context omitted.

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."

Finding a competent electrician these days, for a residential job, can be the difficult part.

I work with several low-voltage guys on different jobs, both new development and retrofit. It is exceedingly difficult to find good cable guys. Running parallel to romex, staples through the middle of the cable, minimum radius as a non-existent concept... Like you say, the competency is the hard part to find.

And before anyone adds on with 'lol pay more', they try. The people just aren't there.

Re: Ethernet Is Still Going Strong After 50 Years

#323

Post by thomastjeffery »

wannacboatmovie wrote: post #199
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…

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."

Believe it or not, many of us don't make huge sums of money.

Re: Ethernet Is Still Going Strong After 50 Years

#324

Post by sumtechguy »

rootusrootus wrote: post #310
toyg wrote: post #307

Earlier quoted context omitted.

I just replaced the coax cables. It's actually really easy to rewire: attach old and new cable together, and pull.

That only works when the coax was a retrofit itself, and the house is small. If it was installed when the house was built, it'll be stapled in various places.

I just had a house built. I am 99% sure looking at all the pics I took it is not stapled in. The tricky ones are the ones where they decided to drill a hole thru the 2x4s in the wall about every 4 ft... Now I am not saying they do not do that (different areas have different ideas of what is 'right').

Re: Ethernet Is Still Going Strong After 50 Years

#325

Post by ndriscoll »

stephenr wrote: post #308
ndriscoll wrote: post #192

Earlier quoted context omitted.

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.

So I had to use a calculator to help me here, and I used https://toolstud.io/video/bitrate.php , but apparently the raw bitrate for 4K@25fps/24bit is 4.98Gbps, which then obviously gets compressed by various codecs. Taking the above 4K@25fps/24bit and pumping it up to 60fps and 36bit colour (i.e. 12 bits per channel, or 68 billion colours, 4096x as many colours as 24bit, and 64x as many colours as 30bit) the resultin…

My understanding is that today's HDR sensors and displays can do ~13 stops of dynamic range, while humans can see at least ~20, though I'm not sure how to translate that into how much additional bit depth ought to be needed (naively, I might guess at 48 bits being enough).

I don't see why we'd stop at 60fps when 120 or even 240 Hz displays are already available. Also 8k displays already exist. The codecs also have tunable quality, and obviously no one is sending lossless video. So we can always increase the quality level when encoding.

So it's true in 2023 (especially since no one will stream that high of quality to you), but one can easily imagine boring incremental technology improvements that would demand more. There's plenty of room for video quality to increase before we reach the limitations of human eyes.

Re: Ethernet Is Still Going Strong After 50 Years

#326

Post by throw0101a »

jonathaneunice wrote: post #294

Perhaps more true to say the Ethernet brand is going strong. What's marketed as "Ethernet" today is vastly different from the 10base5 "yellow hose" originally called Ethernet. Entirely different wiring, signaling, collision management, topology, interconnection strategies, et cetera . But it's been demonstrably the biggest of wins to promote each next generation, however technically different from and incompatible wi…

> What's marketed as "Ethernet" today is vastly different from the 10base5 "yellow hose" originally called Ethernet.

The framing is compatible across all of these changes: your 802.11 NIC has an Ethernet MAC address and can talk to to a copper-connected GigE interface. Copper and fibre interfaces can also talk to each other.

Part of the reasons for the concept of OSI Layers is that you could change things at lower layers (Thicknet, Thinnet, co-ax, etc) and at higher layers (IP, AppleTalk, etc) and would continue to work.

The OSI Layer 2 is the same for all the "variants" of Ethernet. That makes it 'the same' as the original.

Re: Ethernet Is Still Going Strong After 50 Years

#327

Post by dataflow »

wannacboatmovie wrote: post #261
dataflow wrote: post #218

Earlier quoted context omitted.

> Considering that you can make > $20/hr flipping burgers in Seattle I'd say you are off by an order of magnitude. No reasonable skilled tradesman (or even unskilled handyman) is doing anything for $20. It's borderline insulting. > They have expenses, fuel, insurance. I think you missed important details in their post: >> tasks I wanted done that would only take someone with the right skills and equipment a few minut…

Let's extend the idea to unlicensed dentistry too. For $20 I'll remove your tooth with a pair of pliers. It'll take less than 5 minutes.

Isn't that a felony?

Re: Ethernet Is Still Going Strong After 50 Years

#328

Post by ellisv »

toyg wrote: post #307
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…

I just replaced the coax cables. It's actually really easy to rewire: attach old and new cable together, and pull.

My cables are all stapled to the studs, so pulling doesn't work that well :(

Re: Ethernet Is Still Going Strong After 50 Years

#330

Post by drakonka »

I have recently been having to use ethernet plugged directly into the wall because despite reasonable speed test results, I see a ton of packet loss during video calls when going through my router (either wired or wireless)... So it's definitely going strong in this household -.-
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