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View Full Version : Maybe the delay isnt a such a bad thing...


Nes
5th April 2006, 08:03
How true this is, i dont know, but it sounds about right for BT :x

http://theinq.net/?article=30755

Gunsmith
5th April 2006, 08:06
makes me glad im on blueyonder tbh

Wizzo
5th April 2006, 08:27
One of our customers saw this on the test I believe :(

Igloo
5th April 2006, 10:13
This is because he is re-training his line rather than going new, as previously stated by wizzo AND BT, this isnt supposed to happen till the end of the month.

It will probably be to the large demand that will be going on BT are taking it steady, rather than bringing the entirity of the UK's interweb to a crippling and grinding halt.

Look at it this way, have 2mb adsl.... Or have Nothing?

Which would you choose?

- Igloo

Boffykins
5th April 2006, 10:45
Retraining is not the same as Regrading. Retraining is what MAX DSL does to work out what it's optimum rate is. From my understanding of it, it retrains the ATM rate to get the best line performance (for example, an ATM rate of 8mbit might be best for a 6mbit IP rate). So if his modem is reporting 8mbit, it's possible his actual rate is lower. Regrading is the process of going from Standard DSL to MAX DSL and vice versa

GeeDee
5th April 2006, 12:44
Yes, we did indeed have one of our higher speed trialists experience the same. It did however slowly increase over time.

ADSL MAX does not perform as you would expect it to in working out the speed it will run at. I have a multi page PDF document here explaning the process; but essentially there's an (at least) 10 day period where it does lots of different things to get the max speed possible without having the thing fall over all the time. There's nothing to stop BT giving everyone 8Mb speeds, but for the majority of lines it would be totally unstable and forever dropping out - so they use the first 10 days to work out the highest stable speed on your individual line.

Part of this involves re-training the line at different speeds (ie dropping the ADSL link and forcing your ADSL hardware to re-train with the DSLAM at the exchange at speed x and then re-authenticate, then monitor the stability).

From our (limited) experience with this process, the speed the line trains up at doesn't match the actual download speeds available - but it does seem to slowly climb as the BT systems work out how far they can effectively push your individual line.

:)