Topic: Resync massive drop (Read 2017 times)

adslmax · « **on:** August 08, 2020, 09:26:42 PM »

I don't understand what has happen? After 27 days stable of 79999/19999 as it now reduced at 46147/19664 (why?)

adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 1
Last initialization procedure status: 0
Max: Upstream rate = 20686 Kbps, Downstream rate = 74335 Kbps
Bearer: 0, Upstream rate = 19664 Kbps, Downstream rate = 46147 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode(0x0)
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 14.8 8.3
Attn(dB): 14.7 0.0
Pwr(dBm): 12.5 3.4

Downstream      Upstream
General
   rtx_tx    13783     0
   rtx_c     1762    0
   rtx_uc    281915    0
   LEFTRS    98    0
   minEFTR     46141     0
   errFreeBits     417824097     0
Bearer 0
   RxQueue     39    0
   TxQueue     13    0
   G.INP Framing     18    0
   G.INP Lookback    13    0
   RRC Bits    0     24
   Interleave depth   8     1
   INP     49.00     0.00
   INPRein     0.00    0.00
   Delay     0     0
Bearer 1
   Interleave depth   1     0
   INP     2.00    0.00
   INPRein     2.00    0.00
   Delay     0     0

I noticed downstream SNR shoot up from 6.1dB to 14.8dB and line attenuation went from 11.7dB to 14.7dB

I haven't touch anything?

underzone · « **Reply #1 on:** August 08, 2020, 09:40:17 PM »

Reboot it matey

adslmax · « **Reply #2 on:** August 08, 2020, 09:43:39 PM »

It resync itself again *2 times now*

Stats recorded 08 Aug 2020 20:42:28

DSLAM type / SW version:   BDCM:0xa4a1 (164.161) / v0xa4a1
Modem/router firmware:    AnnexA version - A2pv6F039g1.d24m
DSL mode:     VDSL2 Profile 17a
Status:     Showtime
Uptime:      0 hour 0 min 43 sec
Resyncs:    2 (since 08 Aug 2020 20:17:23)

            Downstream   Upstream
Line attenuation (dB):    13.5      0.0
Signal attenuation (dB):   Not available on VDSL2
Connection speed (kbps):   72772      19999
SNR margin (dB):    6.9      15.8
Power (dBm):    12.5      2.6
Interleave depth:     8      1
INP:    47.00      0
G.INP:    Enabled      Not enabled
Vectoring status:     5 (VECT_UNCONFIGURED)

Downstream      Upstream
General
   rtx_tx    15070     0
   rtx_c     5810    0
   rtx_uc    144320    0
   LEFTRS    94    0
   minEFTR     72753     0
   errFreeBits     1545996     0
Bearer 0
   RxQueue     57    0
   TxQueue     19    0
   G.INP Framing     18    0
   G.INP Lookback    19    0
   RRC Bits    0     24
   Interleave depth   8     1
   INP     47.00     0.00
   INPRein     0.00    0.00
   Delay     0     0
Bearer 1
   Interleave depth   3     0
   INP     4.50    0.00
   INPRein     4.50    0.00
   Delay     3     0

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[attachment deleted by admin]

adslmax · « **Reply #3 on:** August 08, 2020, 09:51:33 PM »

Something is not right!

SNR kept jump to 15dB and next is drop to 2dB

Lots of errors now. DLM could capped the line tomorrow

burakkucat · « **Reply #4 on:** August 08, 2020, 09:51:56 PM »

Have there been any thunderstorms in the Telford area recently?

adslmax · « **Reply #5 on:** August 08, 2020, 09:52:56 PM »

Nope it been dry all day today and all this evening with clear skies

adslmax · « **Reply #6 on:** August 08, 2020, 09:56:28 PM »

Resync again 3rd times!

Stats recorded 08 Aug 2020 20:55:26

DSLAM type / SW version:   BDCM:0xa4a1 (164.161) / v0xa4a1
Modem/router firmware:    AnnexA version - A2pv6F039g1.d24m
DSL mode:     VDSL2 Profile 17a
Status:     Showtime
Uptime:      0 hour 0 min 35 sec
Resyncs:    3 (since 08 Aug 2020 20:17:23)

            Downstream   Upstream
Line attenuation (dB):    13.5      0.0
Signal attenuation (dB):   Not available on VDSL2
Connection speed (kbps):   72772      19999
SNR margin (dB):    0.1      12.6
Power (dBm):    12.5      2.6
Interleave depth:     8      1
INP:    47.00      0
G.INP:    Enabled      Not enabled
Vectoring status:     5 (VECT_UNCONFIGURED)

RSCorr/RS (%):    7.3957      0.0134
RSUnCorr/RS (%):    0.0000      0.0000
ES/hour:    227      77.3

burakkucat · « **Reply #7 on:** August 08, 2020, 10:00:05 PM »

Hmm . . .

I don't like the look of the SNRM plot and the number of ES (& SES) are significant. I wonder if the recent hot weather is somehow involved. $:-\$

adslmax · « **Reply #8 on:** August 08, 2020, 10:02:24 PM »

Resync number 5:

Stats recorded 08 Aug 2020 20:59:56

DSLAM type / SW version:   BDCM:0xa4a1 (164.161) / v0xa4a1
Modem/router firmware:    AnnexA version - A2pv6F039g1.d24m
DSL mode:     VDSL2 Profile 17a
Status:     Showtime
Uptime:      0 hour 0 min 20 sec
Resyncs:    4 (since 08 Aug 2020 20:17:23)

            Downstream   Upstream
Line attenuation (dB):    16.5      0.0
Signal attenuation (dB):   Not available on VDSL2
Connection speed (kbps):   46007      19709
SNR margin (dB):    -2.0      6.1
Power (dBm):    12.6      2.9
Interleave depth:     8      1
INP:    49.00      0
G.INP:    Enabled      Not enabled
Vectoring status:     5 (VECT_UNCONFIGURED)

RSCorr/RS (%):    0.2579      0.0000
RSUnCorr/RS (%):    0.0000      0.0000
ES/hour:    325      121

Resync number 6:

Stats recorded 08 Aug 2020 21:02:16

DSLAM type / SW version:   BDCM:0xa4a1 (164.161) / v0xa4a1
Modem/router firmware:    AnnexA version - A2pv6F039g1.d24m
DSL mode:     VDSL2 Profile 17a
Status:     Showtime
Uptime:      0 hour 1 min 6 sec
Resyncs:    6 (since 08 Aug 2020 20:17:23)

            Downstream   Upstream
Line attenuation (dB):    12.9      0.0
Signal attenuation (dB):   Not available on VDSL2
Connection speed (kbps):   79999      19999
SNR margin (dB):    5.6      15.0
Power (dBm):    12.4      2.1
Interleave depth:     16      1
INP:    48.00      0
G.INP:    Enabled      Not enabled
Vectoring status:     5 (VECT_UNCONFIGURED)

RSCorr/RS (%):    0.0034      0.0003
RSUnCorr/RS (%):    0.0000      0.0000
ES/hour:    342      118

adslmax · « **Reply #9 on:** August 08, 2020, 10:03:02 PM »

Line attenuation (dB)    U0   U1   U2   U3   U4   D1   D2   D3
08 Aug 2020 20:17:26      4.9   16.1   24.0   N/A   N/A   9.9   19.2   31.0
08 Aug 2020 20:29:25      4.3   15.5   23.4   N/A   N/A   8.9   18.3   29.8
08 Aug 2020 20:41:55      4.2   15.5   23.3   N/A   N/A   8.8   18.2   29.6
08 Aug 2020 20:59:36      0.0   0.0   0.0   N/A   N/A   11.8   21.1   33.6
08 Aug 2020 20:59:47      4.4   15.6   23.5   N/A   N/A   11.8   21.1   33.6
08 Aug 2020 21:00:25      0.0   0.0   0.0   N/A   N/A   8.5   18.0   29.3
08 Aug 2020 21:00:37      4.0   15.3   23.1   N/A   N/A   8.5   18.0   29.3
08 Aug 2020 21:01:15      3.6   14.9   22.6   N/A   N/A   8.1   17.6   28.9

adslmax · « **Reply #10 on:** August 08, 2020, 10:21:20 PM »

after 10th resync the line seem stable now for 10 minutes but too late now as DLM will bite my line to be banded next 24 hours!

Stats recorded 08 Aug 2020 22:18:36

DSLAM type / SW version:   BDCM:0xa4a1 (164.161) / v0xa4a1
Modem/router firmware:    AnnexA version - A2pv6F039g1.d24m
DSL mode:     VDSL2 Profile 17a
Status:     Showtime
Uptime:      0 hour 11 min 8 sec
Resyncs:    10 (since 08 Aug 2020 21:10:58)

            Downstream   Upstream
Line attenuation (dB):    12.4      0.0
Signal attenuation (dB):   Not available on VDSL2
Connection speed (kbps):   79999      19999
SNR margin (dB):    6.9      15.3
Power (dBm):    12.4      1.4
Interleave depth:     16      1
INP:    48.00      0
G.INP:    Enabled      Not enabled
Vectoring status:     5 (VECT_UNCONFIGURED)

RSCorr/RS (%):    0.0000      0.0000
RSUnCorr/RS (%):    0.0000      0.0000
ES/hour:    0      0

Stats recorded 08 Aug 2020 22:19:06

DSLAM type / SW version:   BDCM:0xa4a1 (164.161) / v0xa4a1
Modem/router firmware:    AnnexA version - A2pv6F039g1.d24m
DSL mode:     VDSL2 Profile 17a
Status:     Showtime
Uptime:      0 hour 11 min 38 sec
Resyncs:    10 (since 08 Aug 2020 21:10:58)

            Downstream   Upstream
Line attenuation (dB):    12.4      0.0
Signal attenuation (dB):   Not available on VDSL2
Connection speed (kbps):   79999      19999
SNR margin (dB):    6.9      15.3
Power (dBm):    12.4      1.4
Interleave depth:     16      1
INP:    48.00      0
G.INP:    Enabled      Not enabled
Vectoring status:     5 (VECT_UNCONFIGURED)

RSCorr/RS (%):    0.0000      0.0000
RSUnCorr/RS (%):    0.0000      0.0000
ES/hour:    0      0

Downstream      Upstream
General
   rtx_tx    97740     0
   rtx_c     23    0
   rtx_uc    0     0
   LEFTRS    1     0
   minEFTR     79982     0
   errFreeBits     998075    0
Bearer 0
   RxQueue     60    0
   TxQueue     20    0
   G.INP Framing     18    0
   G.INP Lookback    20    0
   RRC Bits    0     24
   Interleave depth   16    1
   INP     48.00     0.00
   INPRein     0.00    0.00
   Delay     0     0
Bearer 1
   Interleave depth   3     0
   INP     4.00    0.00
   INPRein     4.00    0.00
   Delay     3     0

adslmax · « **Reply #11 on:** August 08, 2020, 10:44:56 PM »

Quote from: burakkucat on August 08, 2020, 10:00:05 PM

Hmm . . .

I don't like the look of the SNRM plot and the number of ES (& SES) are significant. I wonder if the recent hot weather is somehow involved. $:-\$

Do u think I should inform Plusnet of this caused my line resync 10th time but it seem stable now after 34 minutes no SNR drop or no errors but I don't know what is caused this. Hope DLM isn't thinking ok we will put his line banded don't like 300 errors in the last 30 mins bin time.

My bin cupboard always on cold side the front always cold (no sun can reach my bin cupboard where the DSL cable there) or is it to do with my fibre cabinet burning up or telephone exchange issues?

After 10th resync the worse SNR drop I ever seen is -0.4dB and connection rate at 18765Kbps. with nearly 300 errors second in the space of 30 minutes on the downstream but all day today was zero errored

burakkucat · « **Reply #12 on:** August 08, 2020, 11:06:00 PM »

Quote from: adslmax on August 08, 2020, 10:44:56 PM

My bin cupboard always on cold side the front always cold (no sun can reach my bin cupboard where the DSL cable there) or is it to do with my fibre cabinet burning up or telephone exchange issues?

Any problem with the metallic pathway which is affecting the broadband service can only be that length between the VTU-C (the cabinet based DSLAM) and the VTU-R (your modem/router). I.e. the D-side.

The cabinets can get very hot at this time of the year but they are designed to be able to cope with elevated temperatures.

Just looking at the SNRM plot makes me suspicious that there could be a joint that is going defective. Possibly showing HR or semi-conductive tendencies.

Alex Atkin UK · « **Reply #13 on:** August 08, 2020, 11:11:01 PM »

Did you check the voice line during the poor performance to see if it was crackling/noisy?

That should pretty much always be the first thing you check when such a severe change like this occurs.

adslmax · « **Reply #14 on:** August 08, 2020, 11:12:17 PM »

No, the line was perfectly silent on 17070 option 2 as I did that

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Author Topic: Resync massive drop (Read 2017 times)

adslmax

Resync massive drop

underzone

Re: Resync massive drop

adslmax

Re: Resync massive drop

adslmax

Re: Resync massive drop

burakkucat

Re: Resync massive drop

adslmax

Re: Resync massive drop

adslmax

Re: Resync massive drop

burakkucat

Re: Resync massive drop

adslmax

Re: Resync massive drop

adslmax

Re: Resync massive drop

adslmax

Re: Resync massive drop

adslmax

Re: Resync massive drop

burakkucat

Re: Resync massive drop

Alex Atkin UK

Re: Resync massive drop

adslmax

Re: Resync massive drop