it's a Server, and it doesn't do the DLM either

The 10 day training does not result in a permanently fixed noise margin, that is a myth.
The noise margin training continues for as long as you have a BT IPStream line.

What the 10 day period does is record the minimum connection speed, which is used in setting the MSR figure, which is stored in a database and used to assess whether a slow connection speed is a fault or not

In reply to a post by RobertoS:

We probably both think we are right .
It's irrelevant as both effectively mean the same, taking your "Service" option.

But only one of us can be correct
I'm surprised to hear you say it's irrelevant, details like this are often important to you!

Edited by b4dger (Wed 29-Jul-09 15:59:27)

In reply to a post by b4dger:

I'm surprised to hear you say it's irrelevant, details like this are often important to you!

Baahhhhhh!

I shall now go on strike from early tomorrow till Tuesday!

Hi
There are 3 terms involving SNR

SNR signal to noise ratio : that is as it says the ratio of the ADSL signal to the line noise . in simple terms its the elbow room you might say . the higher for a given connection synch the better.

Target SNR : This is set as part of the negotiation between your router and the DSLAM when you router is switched on and connects to the exchange . The default is 6db but if the line is /has experienced lots of noise or is unstable the the target will beraised . That is where the 3db steps comes in . target SNR can be set to 6,9,12,15 db. This is an automated process .

SNR margin : this is the actual Signal to noise ratio at any particular time . At the instant of connection it will be the same as the target SNR ,but after that it is totally dependant on the amount of noise on the line so it can fluctuate up or down . How much it fluctuates is down to conditions. Routers report the SNR Margin .If the margin gets too low then the router will lose synch .

see the link below for more info .
http://www.kitz.co.uk/adsl/linestats.htm
Regards Jeff

In reply to a post by jeffbb:

Target SNR : This is set as part of the negotiation between your router and the DSLAM when you router is switched on and connects to the exchange . The default is 6db but if the line is /has experienced lots of noise or is unstable the the target will beraised . That is where the 3db steps comes in . target SNR can be set to 6,9,12,15 db. This is an automated process .

Minor quibble .

It is target SNRM not SNR.