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Standard User Fishbed
(committed) Mon 25-Sep-06 12:10:30
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ADSL2 vs ADSL2+


[link to this post]
 
ALthough my question relates to SkyBB because of its technical nature I thought it would be best to post here.

I have to decide whether I go for the MID or MAX package. My line stats and my typical usage would suggest the MID package is for me.

However, I have heard that the MID package is ADSL2 whereas the MAX package is ADSL2+ - is this true?

I've also read that ADSL2 is fixed rate (established when the router initialises) whereas ADSL2+ is adaptive rate (like MaxDSL). Is this true?

My reason for asking is a concern over line stability.

I have read that if the line quality fluctuates then then ADSL2 will disconnect and reconnect at a lower speed, whereas the ADSL2+ connection will stay up and just adapt to a lower speed. Is this correct?

You see, whilst I don't (or can't get) the majority of benefits of the MAX product I might be prepared to pay extra for improved stability.

Hope you can help.

Thanks,

Nigel
Standard User arfster
(knowledge is power) Mon 25-Sep-06 19:26:31
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Re: ADSL2 vs ADSL2+


[re: Fishbed] [link to this post]
 
ADSL2 means 12mbit max, ADSL2+ 24mbit. Likely it's just a mistake and they both mean adsl2+.

Rate adaptive is something else - this simply means it runs at a fixed rate, but as fast as the line can manage at the time of connection. However, Easynet/Sky also allow SRA with adsl2+, which is probably what you're thinking of - this changes the speed depending on lone conditions. MaxDSL is BT's 8mbit adsl1 product, and adsl1 can't use SRA.

You are right on your assumptions about line stability. However, this is only really an issue on lines where there are big noise swings over a daily period. ADSL2+ is quite resilient to this sort of thing anyway, so it's less of a major plus point than we first thought.

--------------------------------------------
Bulldog ADSL2+ 17mbit/1mbit, 23 attn, 5 margin, 23 power ("extremely noisy line" say BD)

ADSL/ADSL2+ speed chart
Standard User darkstar01
(newbie) Mon 25-Sep-06 23:20:16
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Re: ADSL2 vs ADSL2+


[re: arfster] [link to this post]
 
what he said!


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