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Author Topic: Badly hit by crosstalk  (Read 17024 times)

adslmax

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Re: Badly hit by crosstalk
« Reply #30 on: June 18, 2019, 12:46:47 PM »

Billion 8800NL connected with TP LInk VR2600 for Wireless Router but this throughput speed is tested via ethernet to my pc ethernet as I have asked PN for GEA Test to see if the line was banded?
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kitz

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Re: Badly hit by crosstalk
« Reply #31 on: June 18, 2019, 12:51:25 PM »

GEA test run by the ISP could be pretty useless as the DLM profile is often a few weeks out of date :/
It would be interesting to see it though if you do get one as it might show something.
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adslmax

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Re: Badly hit by crosstalk
« Reply #32 on: June 18, 2019, 12:58:07 PM »

Just checked Broadband Quality Monitor as it start to get packet loss around 5pm yesterday and it kept continue.

https://www.thinkbroadband.com/broadband/monitoring/quality/share/d3e60413fe4ce714d2eff50230f56fe7210244e6

Stats recorded 18 Jun 2019 12:55:18

DSLAM type / SW version:   BDCM:0xa48c (164.140) / v0xa48c
Modem/router firmware:     AnnexA version - A2pv6F039g1.d24m
DSL mode:                  VDSL2 Profile 17a
Status:                    Showtime
Uptime:                    2 days 1 hour 11 min 49 sec
Resyncs:                   0 (since 18 Jun 2019 10:55:45)
         
            Downstream   Upstream
Line attenuation (dB):     11.1      0.0
Signal attenuation (dB):   Not available on VDSL2      
Connection speed (kbps):   80000      20000
SNR margin (dB):           10.1      12.9
Power (dBm):               12.4      0.3
Interleave depth:          16      8
INP:                       46.00      47.00
G.INP:                     Enabled      Enabled
Vectoring status:          5 (VECT_UNCONFIGURED)      

RSCorr/RS (%):             15.7154      4298.3486
RSUnCorr/RS (%):           0.0000      0.0000
ES/hour:                   0.0      0.0
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kitz

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Re: Badly hit by crosstalk
« Reply #33 on: June 18, 2019, 01:09:10 PM »

Cheers.    Yes I can see on there, that is when it likely started.    Keep us updated on what PN say.
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adslmax

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Re: Badly hit by crosstalk
« Reply #34 on: June 18, 2019, 01:21:29 PM »

Updated: PN Profile are incorrect than BT one. They have corrected it now. As for GEA Test they say it outdated. As it was old one.

https://www.thinkbroadband.com/speedtest/1560860162575921055

https://www.speedtest.net/result/8346748578

I was bit annoyed by PN no longer gave high speed profile check on the member account as it making much harder for us to think what has gone wrong with the line speed etc very annoying to chase it up with PN.

This one no longer in use: https://portal.plus.net/my.html?action=data_transfer_speed
« Last Edit: June 18, 2019, 01:27:12 PM by adslmax »
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kitz

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Re: Badly hit by crosstalk
« Reply #35 on: June 18, 2019, 06:11:36 PM »

Totally agree that its annoying how we can no longer check it ourselves.   Glad you got it sorted although I wonder what would have triggered such a change :-\
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adslmax

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Re: Badly hit by crosstalk
« Reply #36 on: June 18, 2019, 07:20:41 PM »

Kitz I won't be with PN much longer as I am leaving them in October when my contract has expiry for Fibre 80/20 with LRS line only. I am thinking to move both the line and fibre 80/20 to Zen Internet.

Reason of leaving PN:

lack of support via ticket
ongoing billing issues (not fixed yet since September 2018)
removed PN profile rate from the member account

Such a shame really because PN used to be good but not anymore.

PN send me GEA TEST but it outdated (nearly two weeks ago)

Code: [Select]
Circuit ID NA Service ID ***************
Test Outcome Pass
Test Outcome Code GTC_FTTC_SERVICE_0000
Description GEA service test completed and no fault found .
Main Fault Location OK
Sync Status In Sync
Downstream Speed 79.9 Mbps
Upstream Speed 20.0 Mbps
Appointment Required N
Fault Report Advised N
NTE Power Status PowerOn
Voice Line Test Result Pass
Bridge Tap Not Detected
Radio Frequency Ingress Not Detected
Repetitive Electrical Impulse Noise Not Detected
Cross Talk Not Detected
Estimated Line Length In Metres 262.7
Upstream Rate Assessment Very Good
Downstream Rate Assessment Very Good
Interference Pattern Regular Interference Observed Daily
Service Impact No Impact Observed
Interference Duration Longest Occurrence From 17:30 to 20:45
Interference Location Unknown
Interference Observed In Days 2
Home Wiring Problem Not Detected
Downstream Policing Discard Rate 0.0
Customer Traffic Level Upstream and Downstream Traffic Detected
Technology VDSL
Profile Name 0.128M-80M Downstream, Retransmission Low - 0.128M-20M Upstream, Error Protection Off
Time Stamp 2019-06-05T15:00:00
Parameters MIN MAX AVG
Down Stream Line Rate 79.2 Mbps 79.9 Mbps 79.6 Mbps
Up Stream Line Rate 19.9 Mbps 20.0 Mbps 19.9 Mbps
Up Time 0.0 Sec 900.0 Sec 897.4 Sec
Retrains 0.0 4.0 0.0
Current and Last 15 Minute Bin Performance
Parameters Last Traffic Count(Upto 15 mins) Current Traffic Count(Upto 15 mins)
Start Time Stamp 2019-06-18T13:37:02Z 2019-06-18T13:52:02Z
Ingress Code Violation 0 27
Egress Code Violation 0 0
Errored Seconds 0 0
Severely Errored Seconds 0 0
Unavailable Seconds 0 0


« Last Edit: June 18, 2019, 07:27:37 PM by adslmax »
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niemand

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Re: Badly hit by crosstalk
« Reply #37 on: June 18, 2019, 10:24:11 PM »

Your GEA test was done earlier today. The date from 2 weeks ago isn't the timing of the test it's possibly last resync.
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kitz

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Re: Badly hit by crosstalk
« Reply #38 on: June 18, 2019, 11:04:58 PM »

For some obscure reason the GEA test never returns the current DLM profile and is usually (always!) 13/14 days out of date.

I first noticed this when g.inp was introduced ~4yrs ago and I had a battle on my hands trying to convince PN that the GEA tests they were giving out on their forums contained out of date info.  I certainly recall trying to convince Matty several times that a line definitely had g.inp enabled and PN denying it because the profile from GEA saying it didn't.  It was Bob Pullen who eventually acknowledged I was correct and that DLM profile data should never be taken as current.  It doesnt even tie up with the last sync :(

Anyhow I digress, the crux is the DLM profile data lags by 2 weeks and this is not specific to Plusnet - it also affects other ISPs. 
That's why I said several posts above after Max said he'd requested one: "GEA test run by the ISP could be pretty useless as the DLM profile is often a few weeks out of date :/"   :'(
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adslmax

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Re: Badly hit by crosstalk
« Reply #39 on: June 18, 2019, 11:23:38 PM »

I was not surprise many ISP's never reported outdated GEA Test to either BTWholesale or Openreach. They should updated at the same time when the profile changed via BTw speedtester after last resync from the modem. Over 2 weeks is a joke. The same with PN Profile as it pretty quick to downgrade speed profile on the line but take ages to recover to increase the profile speed but sometimes it doesn't pick it up until request PN to check the profile speed to matched BT profile rate are rather annoyed in these case.
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adslmax

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Re: Badly hit by crosstalk
« Reply #40 on: June 19, 2019, 11:03:13 AM »

The line has been resync after 3am this morning. Very strange to put high rtx on upstream as bearer 0 INPRein 1.00

Stats recorded 19 Jun 2019 11:00:19

DSLAM type / SW version:   BDCM:0xa48c (164.140) / v0xa48c
Modem/router firmware:     AnnexA version - A2pv6F039g1.d24m
DSL mode:                  VDSL2 Profile 17a
Status:                    Showtime
Uptime:                     7 hours 43 min 3 sec
Resyncs:                   1 (since 19 Jun 2019 11:00:15)
         
            Downstream   Upstream
Line attenuation (dB):     11.8      0.0
Signal attenuation (dB):   Not available on VDSL2      
Connection speed (kbps):   79999      20000
SNR margin (dB):           7.0      7.3
Power (dBm):               12.4      0.6
Interleave depth:          16      4
INP:                       46.00      55.00
G.INP:                     Enabled      Enabled
Vectoring status:          5 (VECT_UNCONFIGURED)      

RSCorr/RS (%):             2.0525      981.7606
RSUnCorr/RS (%):           0.0000      0.0000
ES/hour:                   0      0

adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 27830 Kbps, Downstream rate = 86481 Kbps
Bearer: 0, Upstream rate = 20000 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):        7.0             7.3
Attn(dB):        11.8            0.0
Pwr(dBm):        12.4            0.6

Downstream      Upstream
General
   rtx_tx             9654798            2833029         
   rtx_c              60744              6094234         
   rtx_uc             25                 1316850         
   LEFTRS             716                17263           
   minEFTR            79999              19995           
   errFreeBits        34071588           590752791       
Bearer 0
   RxQueue            57                 135             
   TxQueue            19                 27             
   G.INP Framing      18                 18             
   G.INP Lookback     19                 27             
   RRC Bits           24                 24             
   Interleave depth   16                 4               
   INP                46.00              55.00           
   INPRein            0.00               1.00           
   Delay              0                  0               
Bearer 1
   Interleave depth   3                  1               
   INP                4.00               4.00           
   INPRein            4.00               4.00           
   Delay              3                  0     

Since Link time = 7 hours 48 min 43 sec
FEC:            44529437                33723917
CRC:            21              658
ES:             15              480
SES:            0               377
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0     

Still getting packet loss even before and after resync according to thinkbroadband monitor below





[attachment deleted by admin]
« Last Edit: June 19, 2019, 11:12:15 AM by adslmax »
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kitz

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Re: Badly hit by crosstalk
« Reply #41 on: June 19, 2019, 11:17:17 AM »

Code: [Select]
INP:                       46.00      55.00
G.INP:                     Enabled      Enabled

Not sure sorry.   All I know is they are trialling higher levels of re-tx.   I guess you are on that trial.

What is your throughput speed like?
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adslmax

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meritez

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Re: Badly hit by crosstalk
« Reply #43 on: June 19, 2019, 05:33:12 PM »

Profile changes look like this:

Code: [Select]
Profile Summary
Profile name Profile change time stamp
0.128M-80M Downstream, Interleaving Low - 0.128M-20M Upstream, Error Protection Off 2019-06-06T10:00:00
0.128M-80M Downstream 5dB, Retransmission High - 0.128M-20M Upstream, Error Protection Off 2019-06-18T00:45:00
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adslmax

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Re: Badly hit by crosstalk
« Reply #44 on: June 19, 2019, 07:24:28 PM »

Kitz - I kept asked myself 'Why do Openreach want to trial G.INP and Interleaved with Low/Medium/High rtx on upstream for?' Because upstream isn't important roleplay by DLM? Or maybe something to do with G.Fast highest upstream with 50Meg on the cabinet to keep FTTC upstream more stable?
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