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dave006

join:1999-12-26
Boca Raton, FL
reply to ConstantineM

Re: AT&T U-verse FTTP speeds, why do they limit fibre to 18/1.5?

OK, good luck with that attitude.

It is not techniically possible given your current configuration, you will have to wait for the upgrade or better yet consider moving to a better served location.

Dave

ConstantineM

join:2011-09-02
San Jose, CA
Away from the largest city in the prosperous northern California, to the province like Brigham City, UT with UTOPIA and symmetrical 50Mbps/50Mbps fibre for 77 dollars monthly? I'm not that extreme, but Sebastopol, CA with 1Gbps/100Mbps Sonic Fusion for 69 dollars sounds interesting, I'll see how it ends up being.

Well, I meant "kindly demand" above. Dave006, I'm grateful for your help, I doubt you represent the higher management that makes these questionable decisions, and I agree that people might not like my attitude as above, but how would you feel in my situation, with having fibre in your closet in a major metropolis and being offered broadband speeds below those you'd find in second world countries?

When will the upgrade happen for fibre customers? Will AT&T offer competitive 1Gbps speeds anytime before 10Gbps comes in into our home networks and takes over? (Read, "anywhere within the next 5 or even 10 years?") I'm being serious here, I don't understand why I can't have cheap symmetric 1Gbps here in San Jose today, without spending a fortune.

P.S. No offense, but "it is not technically possible" were the words I kept being told by Sprint/Embarq back in the day. I just searched this forum, and found out in my 5-year-old thread someone even continued to insist that it was not technically possible to have an ADSL speed higher than 512K if the line didn't support full 1.5M provisioning (with 1.7M sync). Sprint's anonymous employee volunteer continued with such claims even after I successfully had a very stable 1.2M sync when against their regular practice I was finally placed onto the 1.5M provisioning profile, which was supposed to make my far-away line very unstable. 'just saying. ^_^

Don't get me wrong, Dave, I know from your posts above you have good intentions. Thing is, I get these emails from AT&T every now and then, offering me to upgrade my internet, yet when I arrive to the web-page, the 24/3 option is disabled, and no options, other than a downgrade from 18/1.5, are available. I call the sales department, and they keep on insisting that I live too far from the CO / VRAD / whatever. I tell them I have all fibre in a metropolis, and distance doesn't matter, yet many of them would still insist that I live too far, or some even claim that everyone has fibre (failing to realise that the majority of customers are on the copper). One former-tech/now-sales guy claimed that even though I have FTTH, some other parts of the network between me and AT&T are still through copper, thus the limit; yeah, right! Even the U-verse guy that came to connect the 2Wire RG to the ONT insisted that even with FTTH, distance matters (and he was like more than 200% certain of that). After all of this, how can you expect advanced customers to have any confidence in the company as a whole where so many of the employees are misinformed? I'm not suggesting that everyone is, and I know it's not likely their own fault, but I hope you get my point. I'd really just like to be offered at least the advertised service — 24/3 — and call it a day.

In summary, I'm very interested in learning more about the architecture and the technologies involved, and what makes the whole thing work (or not), and on why exactly is it deemed impossible to honour the ads in the current configuration.

Best regards,
Constantine.

dave006

join:1999-12-26
Boca Raton, FL
said by ConstantineM:

..... Even the U-verse guy that came to connect the 2Wire RG to the ONT insisted that even with FTTH, distance matters (and he was like more than 200% certain of that)....

Actually the U-verse guy is correct, even with FTTP distance matters.

It is true that fiber is not as distance sensitive as copper for HSIA, distance still matter even with fiber. Fiber distribution segments are only good to a total of 12.4 miles (20 km) from the Central Office (CO). This is the max distance between the OLT and the ONT. Just a simple FDF cross-connect in the CO or the VRAD is a loss of about 0.3dB. This equates to about 3000 feet of fiber. Now add a splitter and your ONT termination and the available distance drops quickly...

Dave

ConstantineM

join:2011-09-02
San Jose, CA
Yes, Dave, of course that guy's right! In the middle of San Jose, I must surely be too far away from the CO! Hey, that huge AT&T building / tower in downtown San Jose (next to The Blank Club and Greyhound), which apparently might be the one famous for an employee trying to clean up the fridge from rotten food (google it), is a whole 10 minute bike ride away from my place! Too far, man, too far! Wish I lived closer! Oh, wait, lemme guess, that building is probably too far away from the CO, too! Man!

I'm actually curious: how's your internet at work, guys? Do you have Gigabit Ethernet with full-speed Internet access, or are you stuck with 2Wire modems and 18Mbps fibre with 1.5Mbps upload speeds? What about the upper management? I recall them going on record that current AT&T offerings are more than enough for everyone. Do they also enjoy 1.5Mbps upload speeds in their office and at home?

dave006

join:1999-12-26
Boca Raton, FL
said by ConstantineM:

Yes, Dave, of course that guy's right! In the middle of San Jose, I must surely be too far away from the CO!....

I never indicated that you were "too far" away from the CO for 24/3 HSIA service. We covered that issue already above based on the only FTTP service profile currently available on U-verse, you are limited to a max of 18/1.5 HSIA.

I just explained that distance still matters even with fiber. Just a thought, since you mentioned a 10 minute bike ride, you do understand that we are not talking about physical distance?

In the case of fiber technology we are talking about the equivalent distance as a loss of db signal from the OLT to the ONT.

Dave

ConstantineM

join:2011-09-02
San Jose, CA
Yes, of course, it's not the straight line distance, and that AT&T tower downtown probably doesn't act as a CO, either.

Anyhow. Still no word on how come FTTP is limited to 30/3.6 link layer provisioning. What's holding it from the 32/5 that is available for FTTN?

WhyMe420
Premium
join:2009-04-06
kudos:1
said by ConstantineM:

Anyhow. Still no word on how come FTTP is limited to 30/3.6 link layer provisioning. What's holding it from the 32/5 that is available for FTTN?

AT&T has old/crappy fiber equipment and they are too cheap to replace it as FTTP customers only account for 10% or less of their consumer base. They don't think the ROI would be worth it and their shareholders still think dial-up is a viable option so in order to maximize profits and please shareholders they don't "waste" any money on FTTP customers as shareholders already think that 18/1.5 is "fast."