Hi TelkomZA,
I've always been fantastically happy with my DSL line (I still am), but I noticed something this morning that concerns me. At about
5:15am this morning it's as if somebody adjusted/redesigned something on my DSL port. My SNR figures suddenly changed and my latency jumped from 12ms average to 32ms average.
The log and the graph shows it in detail. My SNR has always been around 10.x down and 12.x up. This morning it jumped dramatically as can be seen below:
Nov 17 09:50:01 ADSL2+ SNR (dB): 10.6 12.0 Rate (Kbps): 10239 1023
Nov 17 10:00:01 ADSL2+ SNR (dB): 10.8 12.0 Rate (Kbps): 10239 1023
Nov 17 10:10:01 ADSL2+ SNR (dB): 10.4 12.0 Rate (Kbps): 10239 1023
Nov 17 10:20:01 ADSL2+ SNR (dB): 10.4 12.0 Rate (Kbps): 10239 1023
Nov 17 10:30:01 ADSL2+ SNR (dB): 10.6 12.0 Rate (Kbps): 10239 1023
:
:
Nov 23 04:10:01 ADSL2+ SNR (dB): 10.4 12.1 Rate (Kbps): 10239 1023
Nov 23 04:20:01 ADSL2+ SNR (dB): 10.4 12.2 Rate (Kbps): 10239 1023
Nov 23 04:30:01 ADSL2+ SNR (dB): 10.4 12.2 Rate (Kbps): 10239 1023
Nov 23 04:40:01 ADSL2+ SNR (dB): 10.3 12.3 Rate (Kbps): 10239 1023
Nov 23 04:50:01 ADSL2+ SNR (dB): 10.2 12.1 Rate (Kbps): 10239 1023
Nov 23 05:00:01 ADSL2+ SNR (dB): 10.1 12.1 Rate (Kbps): 10239 1023
Nov 23 05:10:02 ADSL2+ SNR (dB): 10.2 12.3 Rate (Kbps): 10239 1023
Nov 23 05:20:02 ADSL2+ SNR (dB):
6.6 15.3 Rate (Kbps): 10238 947
Nov 23 05:30:01 ADSL2+ SNR (dB):
6.6 15.4 Rate (Kbps): 10238 947
Nov 23 05:40:01 ADSL2+ SNR (dB):
6.7 15.2 Rate (Kbps): 10238 947
Nov 23 05:50:01 ADSL2+ SNR (dB):
6.7 15.3 Rate (Kbps): 10238 947
Nov 23 06:00:01 ADSL2+ SNR (dB):
6.7 15.3 Rate (Kbps): 10238 947
Nov 23 06:10:01 ADSL2+ SNR (dB):
6.8 15.2 Rate (Kbps): 10238 947
Nov 23 06:20:01 ADSL2+ SNR (dB):
6.7 15.3 Rate (Kbps): 10238 947
Nov 23 06:30:01 ADSL2+ SNR (dB):
6.8 15.3 Rate (Kbps): 10238 947
I used to be able to sync at 15Mbit down/1.2Mbit up. Now it's (still) 15Mbit down, but 947kbit up. I know I shouldn't be complaining, but as I understand it, an SNR of 6.x on the down-link is rather borderline whereas 10.x is a lot more acceptable. I'm worried about stability moving forward.
View attachment 318033
I am pinging the first-hop outbound (105.228.0.5). Would appreciate any insights into this sudden change. There wasn't any weather or other anomalies at this time, so my first instinct is to say that the copper itself is fine.
Was there any planned work on the exchange early this morning (of the 23rd)?
thanks in advance,
--deckert