Lorenceo:
The Vigor 130 can't SNR tweak on VDSL. The DSLAM ignores any SNR related commands from it and negotiates at the value set by Chorus (9db is most common).
Thats a shame. Chorus were digging outside my house the other day, and my line disconnected.
When it came back up I noticed my speed dropped quite a bit :(
Before:
> vdsl status
---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
Running Mode : 17A State : SHOWTIME
DS Actual Rate : 70016000 bps US Actual Rate : 29980000 bps
DS Attainable Rate :108915280 bps US Attainable Rate : 36696000 bps
DS Path Mode : Fast US Path Mode : Fast
DS Interleave Depth : 0 US Interleave Depth : 0
NE Current Attenuation : 11 dB Cur SNR Margin : 16 dB
DS actual PSD : -2.-7 dB US actual PSD : 14. 5 dB
After:
> vdsl status
---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
Running Mode : 17A State : SHOWTIME
DS Actual Rate : 58664000 bps US Actual Rate : 25768000 bps
DS Attainable Rate : 58701936 bps US Attainable Rate : 25792000 bps
DS Path Mode : Fast US Path Mode : Fast
DS Interleave Depth : 0 US Interleave Depth : 0
NE Current Attenuation : 20 dB Cur SNR Margin : 8 dB
DS actual PSD : 5. 6 dB US actual PSD : 14. 5 dB