Noise safety coefficient ? What does this actually mean?

[brattex]

Hi all

I have a stat on my router reports that says Up/downstream noise safety coefficient (SNR) (dB) - I am assuming the higher the better but I just want to check ... some forum posts I've read elsewhere imply it's not good to have this too high but my intuition suggests a high safety coefficient is good (but maybe it's not the same as a safety margin)...

Upstream line rate (kbit/s) 508
Downstream line rate (kbit/s) 5115
Upstream maximum line rate (kbit/s) 1215
Downstream maximum line rate (kbit/s) 23180
Upstream noise safety coefficient(SNR) (dB) 30
Downstream noise safety coefficient(SNR) (dB) 20.7
Upstream interleave depth 0
Downstream interleave depth 0
Line standard ADSL_2plus
Upstream line attenuation (dB) 9.4
Downstream line attenuation (dB) 16
Upstream output power (dBmV) 12.6
Downstream output power (dBmV) 19.4
Downstream CRC 0
Upstream CRC 0
Downstream FEC 0
Upstream FEC 0
Downstream HEC 0
Upstream HEC 0

 

[Willy Strong]

Understanding SNR and Attenuation Rates

 

[Johnatan56]

Attenuation above 0 dB but as low as possible, SNR as high as possible (has to be above 6dB or Telkom ASSIA drops your line).
Your line is perfectly fine, you should be able to pick 20 Mbps if your exchange/backbone supports it.

 

[Deanoblado]

Attenuation above 0 dB but as low as possible, SNR as high as possible (has to be above 6dB or Telkom ASSIA drops your line).
Your line is perfectly fine, you should be able to pick 20 Mbps if your exchange/backbone supports it.

My SNR borders at 6DB and my line keeps dropping. Logged multiple calls not once did they offer to look or mention my line stats. I learned to live with it.