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DSL stats help.

  • nirvanaav
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15 Jun 2020 11:09 #96399 by nirvanaav
DSL stats help. was created by nirvanaav
Hi,

I know very little regarding DSL stats and would like some help, hopefully to try and identify an issues at a customer's property.

The customer keeps complaining of slow or dropping internet but they always reboot everything before they let me know of the issue, they are also unwilling to help diagnose in anyway!

I noticed a couple of things on the DSL stats i would like to clarify, also if anyone notices anything out of the ordinary.

The two items i noticed on the stats:

Actual PSD - this is a negative number.
ReTx - I believe this is vectoring, why would it be only enabled on the upstream?

Stats below:ATU-R Information
Type: VDSL2
Hardware: Annex A
Firmware: 07-07-09-05-01-07
Power Mngt Mode: DSL_G997_PMS_L0
Line State: SHOWTIME
Running Mode: 17A
Vendor ID: fe004452 41590000
ATU-C Information
Vendor ID: b5004244 434dc01c [BDCM]
Line Statistics

Downstream Upstream
Actual Rate 39998 Kbps 8283 Kbps
Attainable Rate 45840 Kbps 8283 Kbps
Path Mode Fast Fast
Interleave Depth 1 1
Actual PSD -3.-7 dB 11. 2 dB
Near End Far End
Trellis ON ON
Bitswap ON ON
ReTx 0 1
SNR Margin 8 dB 6 dB
Attenuation 23 dB 22 dB
CRC 0 13739
FECS 0 s 814629 s
ES 0 s 12117 s
SES 0 s 0 s
LOSS 0 s 0 s
UAS 29 s 467 s
HEC Errors 0 0
RS Corrections 0 0
LOS Failure 0 0
LOF Failure 0 0
LPR Failure 0 0
NCD Failure 0 0
LCD Failure 0 0
NFEC 254 32
RFEC 8 16
LYSMB 2154 16

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15 Jun 2020 20:18 #96404 by adrianh54
Replied by adrianh54 on topic Re: DSL stats help.
The PSD value looks a bit odd.

ReTx is G.INP ( impulse noise protection, a type of error correction.) , not vectoring.

The firmware listed does not show Vectoring as being available.

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