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rradina

join:2000-08-08
Chesterfield, MO

New DSL Speeds

It seems hard to believe the article still mentions the tired "DSL has dedicated bandwidth" advantage over cable's shared infrastructure.

Unless subscribers are part of an antique cable plant, that argument hasn't held water for the past decade. In the past 10 years, the popular speed package on my system (Charter) has increased from DSL-like 1.5Mbps to 30Mbps. Cable's shared architecture disadvantage sure has a odd way of holding them back.


Albert71292

join:2004-10-31
West Monroe, LA

I've been reading articles like this for YEARS, yet I'm still sitting on 6Mbps speed. Won't believe it until I see it!


openbox9
Premium
join:2004-01-26
Germany
kudos:2
reply to rradina

Technically, the argument is valid to a certain degree for the last mile if sufficient backhaul exists at the DSLAM. Realistically, as you suggest, cable has done a fairly good job of pushing fiber deeper into its networks for backhaul, splitting nodes, and managing congestion.


rradina

join:2000-08-08
Chesterfield, MO

Any argument can be valid depending on perspective. However, a 2013 technical article that claims an advantage due to DSL's extremely limited but "dedicated" last mile is like a driver who continues to praise a car's architecture and yet hasn't placed in the top 10 in the past decade. It's repeating marketing for investors and wishful thinkers.

DOCSIS 3.1 is aiming for 10Gbit downstream. The DSLAM will have to be in the subscriber's mailbox to be competitive. I don't call that an architectural advantage. At that distance, the coax is equally dedicated.

If the POTS plant folks have fiber to the DSLAM, they should consider the capabilities and cost of a wireless last mile. Especially if they could create a standard, get the consumer to foot the bill for the CPE and offer self-installation.


openbox9
Premium
join:2004-01-26
Germany
kudos:2

said by rradina:

DOCSIS 3.1 is aiming for 10Gbit downstream.

Split across how many channels? And how many cable companies are going to bond that many channels? For the record, I agree with you on principle. xDSL has a way to go to catch up with HFC plants used by cable companies.
said by rradina:

If the POTS plant folks have fiber to the DSLAM, they should consider the capabilities and cost of a wireless last mile.

I don't see that being any more viable than pushing twisted pairs to their limits. Plus the added cost and spectrum needed?

rradina

join:2000-08-08
Chesterfield, MO

I don't think xDSL can catch them -- that's the problem with continuing to invest in this tech without at least pushing fiber deeper into their territory and serving everyone with something vs. just those fortunate enough to be within a mile of where they stopped.

Spectrum might no longer be the issue:

»White Space Broadband Deployed in California

Copper also continues to age and it's going to get crazy expensive to maintain given fewer and fewer POTS customers remain to share that cost. I'd be considering alternatives such as wireless. Maybe it's too costly but if you reliably can reach a mile from the DSLAM and reuse that same spectrum at another DSLAM three miles away...maybe it would be an affordable stop-gap that allows them to continue to push fiber deeper and split nodes (just like cable). Perhaps at the half-mile mark and continued wireless advances, they would remain competitive. Obviously the goal would be fiber all the way but this might be a path that allows them to eat the elephant a bite at a time while also offering a potential off-load for mobile customers. The mobile off-load could also generate revenue by becoming a monthly fee that doesn't affect their 4G data cap (or at least has a separate cap).


openbox9
Premium
join:2004-01-26
Germany
kudos:2

said by rradina:

without at least pushing fiber deeper into their territory and serving everyone with something vs. just those fortunate enough to be within a mile of where they stopped.

That costs money. If the telcos saw the returns, they would've already made that push.
said by rradina:

Spectrum might no longer be the issue:

»White Space Broadband Deployed in California

I definitely don't see telcos leveraging white space for the last mile. Too many unknowns.
said by rradina:

I'd be considering alternatives such as wireless.

Wireless will fill the gaps. That's a given. Fiber upgrades will eventually replace the rest.