[Gllug] Advice on ADSL line attenuation and noise margin

[Richard Jones]

My internet connection wasn't working this morning, and the problem
seemed to be with the line itself.  The router reports several
mysterious numbers -- I wonder if anyone can help to decode them?

When it wasn't working:

ADSL Link        Downstream      Upstream
Connection Speed 3250 kbps       915 kbps
Line Attenuation 49 db           13.5 db
Noise Margin     9 db            5 db

Now that it is working:

ADSL Link        Downstream      Upstream
Connection Speed 3277 kbps       919 kbps
Line Attenuation 48 db           13.5 db
Noise Margin     9 db            5 db

Reading around the issue, it seems like the tiny difference in line
attenuation (49 db vs 48 db) may be significant for ADSL 2+?

In general, are these numbers good, bad or indifferent?

Rich.

-- 
Richard Jones
Red Hat
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