For my downstream it's
Noise Margin: 12.0 dB
Connection Rate: 8128 Kbps
Line Attenuation: 2.5 dB
Upstream is not as good...
Noise Margin: 22 dB
Connection Rate: 448 Kbps
Line Attenuation: 4.0 dB
It's always confused me, because all the sites quote 7meg speed download. Is it 7.15mbps? Yet BT/Wholesale quote "up to 8meg" on their adverts. I never get the "8" meg though. What IP profile would I need for "8meg"?
Is this just a mix up in bits and bytes. Or can I squeeze out an extra MB?
You'll never get anymore as the IP profile limits you to a max of 7.15 Mbps on adslmax.
How is that "8meg" then?
Is "20meg" even that then? (advertised as 24meg by some)
I know it has a bit to do with overheads and the like. But it is very confusing. No wonder I could not squeeze any extra performance out of it. :slap:
What I'm not sure is how the ATM and other overheads interact with your IP profile, on a non profiled system i.e LLU or Datastream in ideal world you should get nearer the 8Mb but as we know this is rarely if ever the case.
How can you advertise a line that is limited to 7.15mb as "up to 8". Or are they using rounding now? ;)
This is purely a rhetorical question. As I know it's been discussed before. It's just that I only just realised I'm on the ceiling. I've been tweaking for 18 months looking for a better connection. :slap:
At least I am getting the best I can get. Now too sneak into the Exchange and turn the lables from "ASDLMAX" to "ASDL2+". When the engineer comes in to inspect, he will see it all needs "fixing". ;)
I thought you lived in the exchange to get that attenuation!
If it halves again, I get 14mb. Another drop I get 28mb! If it goes down to 0.0000001 I get a billion Mbps!*
*I guess the log scale is not the best scale to work with in reverse.
The short answer, Ben is that the advertised line speeds were originally always the maximum possible sync speed. Nowadays they are tending to quote the maximum throughput instead.