I really wish symmetric broadband was standard. Having 500 down (as a homelabber especially) means nothing if you have only 25 up 😭

The asymmetrical aspect of cable will be here to stay. Fiber can do it because it was build on a different foundation.

Copper cable transmits data using electric signals in various frequencies. There are a batch of frequencies reserved for phone and TV. ALL of the tv programming is constantly streamed to your lines whether you have TV or not and whether you pay for it or not. It’s encrypted and is only decrypted by your cable boxes when your provider says they can decrypt it. The phone frequencies are reserved so you can make phone calls and still max out your download.

So what about the rest of the bandwidth? Well, way back in the early days of cable it was pretty much everyone for themselves. Every company did things its own way. That’s where DOCSIS came in. It’s a platform that allows modem manufacturers to make modems that will work on any cable network that supports Docsis. And the key part is that DOCSIS is always backwards compatible. The network upgrade to 3.1 did not break the old d2 devices.

When it was developed the download was extremely more necessary than the upload. You’d be sending small single line commands on upload and receiving entire files in download. So more frequencies went to download than upload. In a lab setting 1.0 could reach 40mbps down and 10 up. That’s not what was sold because real life isn’t a lab and there’s loss over large distances. Realistically most people got 10 mb down and upload wasn’t even listed.

Whats changed? Well today those same download and upload frequencies are still used. We’ve added more around them to deliver higher speeds. But we’ve also kept the same principles that people need more download than upload. Docsis 3.1 was released in 2013. We really didn’t start stressing over upload until Covid and work from home had us on zoom calls all day.

Docsis 4.0 is technically released but requires quite a bit of overhaul to work with existing networks. We pretty much need to do away with cable tv. That’s why many ISP’s are pushing IPTv. It removes the need for all that bandwidth devoted to just TV. If everyone in a region drops traditional cable for IPTv they can easily switch to d4. D4 does increase upload but does not make it symmetrical.

Your cable company does not decide their highest tier realistically. It’s the most that medium will offer. It’s gonna be a while too for d4 to be available everywhere. Everyone would need to drop traditional cable (which is honestly a nice move regardless) and people don’t upgrade plans very often. When I worked in tech support I would frequently deal with customers complaining about slow speeds while on plans from 2002.

We are between towns in western WA state stuck with 10Mb DSL service. There are a lot of us folks. After moving in (the PO said the internet was great, lol), we discovered that doing anything excessive like downloading AND streaming would not work. One thing at a time. We were able to bond two pair and get 20Mb which is workable, but that's where we sit. Gigabit service is all around us, but we'd have to trench a mile up the road and pay for that to even think about getting a provider to lay a line. Century Link outright laughed at me.

I was able to get T-Mo's home internet as a backup since we WFH, but it isn't stellar either.

Most broadband access in the US is via coax. And the coax companies refuse to let cable TV, and the packages they can bundle, die. So the portion of the coax that would allow for symmetrical service instead brings all the channels you didn't buy because everyone streams now.

I have Spectrum here in the southeast of the United States. My plan is 300 down 12 up. That pathetic upload speed needs to change for the better.