Please may I have an explanation of how the SNR affects broadband delivery?

[#1]

Thanks for those, I'll give them a good studying.

[#2]

Graph no. 21: 15 Nov, 8:30-10:30pm
Graph no. 22: 15 Nov, 10:30-00:30am
Graph no. 23: 16 Nov, 00:30-2:30pm
Graph no. 24: 16 Nov, 2:30-4:30pm
Graph no. 25: 16 Nov, 4:30-6:30pm
Graph no. 26: 16 Nov, 6:30-8:30pm
Uptime: 2 days, 19:37:12
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 1.15 / 4.81
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 8.9 / 9.1
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 16,455 / 6
FEC Errors (Up/Down): 7,649 / 3,041,561
CRC Errors (Up/Down): 164 / 24,684
HEC Errors (Up/Down): 283 / 25,850

[#3]

Graph no. 27: 16 Nov, 8:30-10:30pm
Uptime: 2 days, 20:27:04
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 1.15 / 4.82
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 9.1 / 9.4
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 16,465 / 6
FEC Errors (Up/Down): 7,656 / 3,042,199
CRC Errors (Up/Down): 164 / 24,698
HEC Errors (Up/Down): 283 / 25,872

[#4]

Graph no. 28: 16 Nov,10:30-12:30pm

[#5]

Hi Richard,
there seem to be some clear patterns emerging, but a couple of as yet unexplained bits of behaviour.
One of which is showing on the graph attached to reply #101. Could you confirm that was when the TG582n was online or was it with the 585?
I take it the 585 is now full disconnected and it's power supply unplugged?

[#6]

Quote from: Anotherone

I take it the 585 is now full disconnected and it's power supply unplugged?

Hey Chris... the TG582n arrived in the post on Thursday, 13 November... and I substituted this for the 585...
The appended graph shows the moment, at 13:05 on Thursday, when I removed the 585 and powered up the TG582n... RouterStatsLite was not capable of tracking the 585 upside Noise Margin...
The Router details below show that I have now been continuously online for 3 days and 2 hours...
Uptime: 3 days, 2:03:56
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 1.19 / 5.56
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 9.1 / 6.5
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 17,255 / 6
FEC Errors (Up/Down): 8,793 / 3,100,159
CRC Errors (Up/Down): 166 / 25,751
HEC Errors (Up/Down): 284 / 27,626

[#7]

Graph no. 29: 16 Nov,12:30-14:30pm
Graph no. 30: 16 Nov,14:30-16:30pm
Uptime: 3 days, 2:27:20
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 1.20 / 5.56
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 9.0 / 6.7
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 17,622 / 6
FEC Errors (Up/Down): 8,796 / 3,337,461
CRC Errors (Up/Down): 166 / 27,804
HEC Errors (Up/Down): 284 / 29,476

[#8]

I did read what you had posted previously about when the 582n arrived and was connected, but I wanted to be certain that the 585 wasn't just sitting there idle or with it's PSU still plugged in. PSUs can go faulty and generate lots of noise/interference.
Also I wanted just to double check that the graph you posted on reply #101 was definitely with the 582n because you corrected yourself about the date (which doesn't happen to agree with what's on the graph or its file name - but no matter) and at present seems to be a one off event which doesn't as yet have an explanation, and as long as it was with the 582n, it means I won't be misled by red herrings.

[#9]

Quote from: Anotherone

Also I wanted just to double check that the graph you posted on reply #101 was definitely with the 582n because you corrected yourself about the date (which doesn't happen to agree with what's on the graph or its file name - but no matter) and at present seems to be a one off event which doesn't as yet have an explanation, and as long as it was with the 582n, it means I won't be misled by red herrings.

Yes... I'm sorry about the wrong file name... I got my dates wrong... lol...
Graph no. 31: 16 Nov,16:30-18:30pm appended herewith... also 84 hours in one graph...
Uptime: 3 days, 4:31:10
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 1.21 / 5.61
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 9.1 / 7.1
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 18,199 / 6
FEC Errors (Up/Down): 9,415 / 3,376,368
CRC Errors (Up/Down): 166 / 28,470
HEC Errors (Up/Down): 284 / 30,094

[#10]

Graph no. 32: 16 Nov,18:30-20:30pm
Graph no. 33: 16 Nov,20:30-22:30pm
Uptime: 3 days, 8:27:04
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 1.22 / 5.70
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 9.3 / 7.6
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 19,117 / 6
FEC Errors (Up/Down): 9,450 / 3,434,559
CRC Errors (Up/Down): 166 / 29,557
HEC Errors (Up/Down): 284 / 31,140

[#11]

Graph no. 34: 16 Nov,22:30-00:30am
Graph no. 35: 17 Nov,00:30-02:30am
Graph no. 36: 17 Nov,2:30-4:30am
Graph no. 37: 17 Nov,4:30-6:30am
Uptime: 3 days, 16:30:28
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 1.44 / 6.55
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 9.1 / 8.4
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 19,460 / 6
FEC Errors (Up/Down): 9,461 / 3,506,172
CRC Errors (Up/Down): 166 / 30,036
HEC Errors (Up/Down): 284 / 31,727

[#12]

Keep them coming Richard, there are some clear expected patterns and a few that are a bit odd. I'll comment and ask a few questions later today.

[#13]

Graph no. 38: 17 Nov,6:30-8:30am
Graph no. 39: 17 Nov,8:30-10:30am
Graph no. 40: 17 Nov,10:30-12:30
Graph no. 41: 17 Nov,12:30-14:30
WOW... 4 days without a router reboot...
Uptime: 4 days, 0:28:42
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 1.75 / 7.69
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 8.9 / 9.5
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 20,257 / 6
FEC Errors (Up/Down): 11,526 / 4,267,777
CRC Errors (Up/Down): 176 / 31,634
HEC Errors (Up/Down): 305 / 33,181

[#14]

Graph no. 42: 17 Nov,14:30-16:30
Graph no. 43: 17 Nov,16:30-18:30
Graph no. 44: 17 Nov,18:30-20:30
Graph no. 45: 17 Nov,20:30-22:30
Uptime: 4 days, 9:20:37
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 2.05 / 9.14
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 9.0 / 5.8
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 21,140 / 6
FEC Errors (Up/Down): 12,715 / 4,495,532
CRC Errors (Up/Down): 237 / 33,201
HEC Errors (Up/Down): 412 / 34,786

[#15]

Graph no. 46: 17 Nov,22:30-00:30
Graph no. 47: 18 Nov,00:30-02:30
Graph no. 48: 18 Nov,02:30-04:30
Graph no. 49: 18 Nov,04:30-06:30
Uptime: 4 days, 17:42:20
DSL Type: ITU-T G.992.5
Bandwidth (Up/Down) [kbps/kbps]: 447 / 1,657
Data Transferred (Sent/Received) [GB/GB]: 2.29 / 9.92
Output Power (Up/Down) [dBm]: 12.0 / 16.7
Line Attenuation (Up/Down) [dB]: 37.7 / 67.5
SN Margin (Up/Down) [dB]: 9.0 / 9.0
System Vendor ID (Local/Remote): TMMB / ----
Chipset Vendor ID (Local/Remote): BDCM / TSTC
Loss of Framing (Local/Remote): 18 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): -
Error Seconds (Local/Remote): 24,921 / 6
FEC Errors (Up/Down): 12,758 / 5,073,233
CRC Errors (Up/Down): 241 / 38,037
HEC Errors (Up/Down): 420 / 39,395