Kitz Forum

Broadband Related => FTTC and FTTP Issues => Topic started by: adslmax on August 08, 2020, 09:26:42 PM

Title: Resync massive drop
Post by: 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?

Title: Re: Resync massive drop
Post by: underzone on August 08, 2020, 09:40:17 PM
Reboot it matey
Title: Re: Resync massive drop
Post by: adslmax 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               

[attachment deleted by admin]

[attachment deleted by admin]
Title: Re: Resync massive drop
Post by: adslmax 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  ???
Title: Re: Resync massive drop
Post by: burakkucat on August 08, 2020, 09:51:56 PM
Have there been any thunderstorms in the Telford area recently?
Title: Re: Resync massive drop
Post by: adslmax on August 08, 2020, 09:52:56 PM
Nope it been dry all day today and all this evening with clear skies
Title: Re: Resync massive drop
Post by: adslmax 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
Title: Re: Resync massive drop
Post by: 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.  :-\
Title: Re: Resync massive drop
Post by: adslmax 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
Title: Re: Resync massive drop
Post by: adslmax 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
Title: Re: Resync massive drop
Post by: adslmax 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!  :no:

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               
Title: Re: Resync massive drop
Post by: adslmax on August 08, 2020, 10:44:56 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
Title: Re: Resync massive drop
Post by: burakkucat on August 08, 2020, 11:06:00 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.
Title: Re: Resync massive drop
Post by: Alex Atkin UK 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.
Title: Re: Resync massive drop
Post by: adslmax on August 08, 2020, 11:12:17 PM
No, the line was perfectly silent on 17070 option 2 as I did that
Title: Re: Resync massive drop
Post by: adslmax on August 08, 2020, 11:17:55 PM
Updated:

I just went to the bin cupboard to have a quick look but I have to closed it quickly with a shocked to my face as there is swarm of bees there
Title: Re: Resync massive drop
Post by: banger on August 09, 2020, 12:45:32 AM
🐝
Title: Re: Resync massive drop
Post by: adslmax on August 09, 2020, 10:32:40 AM
updated: stable ongoing for 12 hours (no DLM action or banded on the line yet so far) finger cross it won't happen now! :fingers:

Stats recorded 09 Aug 2020 10:29:14

DSLAM type / SW version:   BDCM:0xa4a1 (164.161) / v0xa4a1
Modem/router firmware:     AnnexA version - A2pv6F039g1.d24m
DSL mode:                  VDSL2 Profile 17a
Status:                    Showtime
Uptime:                     12 hours 21 min 52 sec
Resyncs:                   0 (since 09 Aug 2020 10:26:10)
         
            Downstream   Upstream
Line attenuation (dB):     12.4      0.0
Signal attenuation (dB):   Not available on VDSL2      
Connection speed (kbps):   79999      19999
SNR margin (dB):           6.8      15.5
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      0.0024
RSUnCorr/RS (%):           0.0000      0.0000
ES/hour:                   0      2.24

adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 25492 Kbps, Downstream rate = 86804 Kbps
Bearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 79999 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):        6.8             15.5
Attn(dB):        12.4            0.0
Pwr(dBm):        12.4            1.4

Downstream      Upstream
General
   rtx_tx             97829              0               
   rtx_c              110                0               
   rtx_uc             0                  0               
   LEFTRS             1                  0               
   minEFTR            79982              0               
   errFreeBits        54364864           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   

adsl info --pbParams
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 25492 Kbps, Downstream rate = 86843 Kbps
Bearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 79999 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Discovery Phase (Initial) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)
Medley Phase (Final) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)
                  VDSL Port Details               Upstream                Downstream
Attainable Net Data Rate:           25492 kbps              86843 kbps
Actual Aggregate Tx Power:             1.4 dBm               12.4 dBm
====================================================================================
  VDSL Band Status   U0   U1   U2   U3   U4   D1   D2   D3
  Line Attenuation(dB):   3.0   14.4   21.9   N/A   N/A   7.7   17.2   28.3
Signal Attenuation(dB):   3.0   13.4   20.8   N/A   N/A   9.9   17.0   28.3
        SNR Margin(dB):   15.8   15.4   15.4   N/A   N/A   6.9   6.8   6.8
         TX Power(dBm):   -13.2   -29.2   1.2   N/A   N/A   8.0   7.8   7.1

       
Title: Re: Resync massive drop
Post by: burakkucat on August 09, 2020, 02:11:15 PM
updated: stable ongoing for 12 hours (no DLM action or banded on the line yet so far) . . .

That's good to know.  :)

I presume that you caused the circuit re-train, showing as "(since 09 Aug 2020 10:26:10)", just before harvesting the statistics "Stats recorded 09 Aug 2020 10:29:14".
Title: Re: Resync massive drop
Post by: adslmax on August 09, 2020, 02:22:06 PM
Yes that's because I resetted errors via billions router as I haven't rebooted or touch the billions router at all. The router did crazy resync 10th times and that was it. Still stable for 16 hours now. PN current line does reduced from 78Mb to 18Mb even though BTW bras ip profile still at 77.35Mb. So, I just make sure I don't do PPPOE soft disconnected otherwise the speed will be limit at 18Mb because of PN current line speed but hope PN didn't kick in with 18Mb.

Your broadband service

    Product: Unlimited Fibre Extra
    Estimated Download Range: 60 - 72Mbps
    Estimated Upload Range: 17 - 18Mbps
    Minimum Guaranteed Speed: 55.6Mbps
    Current Line Speed (Download): 18Mbps
Title: Re: Resync massive drop
Post by: banger on August 09, 2020, 08:43:49 PM
What about the bees. 🐝
Title: Re: Resync massive drop
Post by: adslmax on August 09, 2020, 09:44:34 PM
What about the bees. 🐝

It's still in the cupboard. Beekeepers say it a bumblebees and told me to leave it alone, it will go away in September. Just showed them Broseley Beeskeeper of that video of bees in cupboard.
Title: Re: Resync massive drop
Post by: adslmax on August 09, 2020, 09:45:51 PM
Updated: 23 hours 37 minutes stable (hopefully DLM will discard banded overnight)

adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 25476 Kbps, Downstream rate = 86897 Kbps
Bearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 79999 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):        6.8             15.5
Attn(dB):        12.4            0.0
Pwr(dBm):        12.4            1.4
Title: Re: Resync massive drop
Post by: Alex Atkin UK on August 09, 2020, 09:58:07 PM
It's still in the cupboard. Beekeepers say it a bumblebees and told me to leave it alone, it will go away in September. Just showed them Broseley Beeskeeper of that video of bees in cupboard.

Makes sense, bumblebees are endangered!
Title: Re: Resync massive drop
Post by: adslmax on August 09, 2020, 10:09:46 PM
Do u think DLM has working very well this time will ingorne terrible 10th resync in 24 hours ago. I was amused by this because I would thought DLM will trigger banded on my line today but it didn't happen! Thanks goodness for this!
Title: Re: Resync massive drop
Post by: Alex Atkin UK on August 09, 2020, 10:19:39 PM
Do u think DLM has working very well this time will ingorne terrible 10th resync in 24 hours ago. I was amused by this because I would thought DLM will trigger banded on my line today but it didn't happen! Thanks goodness for this!

Trying to understand DLM can only lead to madness.  ::)
Title: Re: Resync massive drop
Post by: adslmax on August 09, 2020, 10:27:12 PM
Plusnet has updated now:

Your broadband service

    Product: Unlimited Fibre Extra
    Estimated Download Range: 60 - 72Mbps
    Estimated Upload Range: 17 - 18Mbps
    Minimum Guaranteed Speed: 55.6Mbps
    Current Line Speed (Download): 77.2Mb
Title: Re: Resync massive drop
Post by: adslmax on August 10, 2020, 01:52:13 PM
So far no DLM action or banded on the line. Very very lucky escape indeed  ;D
Title: Re: Resync massive drop
Post by: Alex Atkin UK on August 10, 2020, 03:04:50 PM
So far no DLM action or banded on the line. Very very lucky escape indeed  ;D

You might even say you are positively "buzzing" with excitement that you didn't need to clear the bees to check the line.  :lol:
Title: Re: Resync massive drop
Post by: niemand on August 11, 2020, 10:19:40 AM
Oh mate....  :no: