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Author Topic: High Errors?  (Read 341 times)

Alucidnation

  • Member
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  • Posts: 46
High Errors?
« on: March 14, 2019, 08:10:38 PM »

Hi Guys, as some may be aware, i have been and am having issues with various speed issues, and had the usual OR bull that everything is fine.

Anyway, I am currently running a ZyXel vmg1312 B10A on my ECI cab and it is picking up quite a few errors.

Could one of you take a look and give me your thoughts?

Is the amount of ES & CRC errors due to the lack of being corrected by FEC?

Thanks


Last Retrain Reason:    8000
Last initialization procedure status:   0
Max:    Upstream rate = 15436 Kbps, Downstream rate = 59685 Kbps
Bearer: 0, Upstream rate = 15348 Kbps, Downstream rate = 59673 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):        6.1             6.1
Attn(dB):        18.6            0.0
Pwr(dBm):        6.9             6.8

                        VDSL2 framing
                        Bearer 0
MSGc:           18              17
B:              239             238
M:              1               1
T:              64              64
R:              0               16
S:              0.1280          0.4956
L:              15000           4116
D:              1               1
I:              240             255
N:              240             255

                        Counters
                        Bearer 0
OHF:            16201847                2085824
OHFErr:         110             0
RS:             0               2581468
RSCorr:         0               3
RSUnCorr:       0               0

                        Bearer 0
HEC:            176             0
OCD:            0               0
LCD:            0               0
Total Cells:    3822638706              0
Data Cells:     204713310               0
Drop Cells:     0
Bit Errors:     0               0

ES:             294             0
SES:            47              0
UAS:            1836            1792
AS:             33317

                        Bearer 0
INP:            0.00            0.00
INPRein:        0.00            0.00
delay:          0               0
PER:            2.05            7.96
OR:             93.38           23.11
AgR:            59766.53        15370.92

Bitswap:        282/284         107/107

Total time = 1 days 9 hours 38 min 42 sec
FEC:            0               11
CRC:            22441           0
ES:             294             0
SES:            47              0
UAS:            1836            1792
LOS:            1               0
LOF:            27              0
LOM:            26              0
Latest 15 minutes time = 8 min 42 sec
FEC:            0               0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Previous 15 minutes time = 15 min 0 sec
FEC:            0               0
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Latest 1 day time = 9 hours 38 min 42 sec
FEC:            0               3
CRC:            8108            0
ES:             75              0
SES:            18              0
UAS:            1394            1379
LOS:            1               0
LOF:            6               0
LOM:            0               0
Previous 1 day time = 24 hours 0 sec
FEC:            0               8
CRC:            14333           0
ES:             219             0
SES:            29              0
UAS:            442             413
LOS:            0               0
LOF:            21              0
LOM:            26              0
Since Link time = 9 hours 15 min 17 sec
FEC:            0               3
CRC:            110             0
ES:             57              0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
NTR: mipsCntAtNtr=0 ncoCntAtNtr=0
 >

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ejs

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  • Posts: 1902
Re: High Errors?
« Reply #1 on: March 14, 2019, 08:34:35 PM »

The daily limit for ES is 2880 for the Speed profile, and you've got about 10% of that, so I can't really see how anyone could say about 200 to 300 ES per day is high.

If the stats had a count of all the CRCs that were OK, I'm guessing the number of CRC errors wouldn't look in any way high in comparison.

Yes I am aware you've had numerous Openreach visits over the last couple of months. Fortunately I deleted the other things I was going to write before posting.
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Alucidnation

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  • Posts: 46
Re: High Errors?
« Reply #2 on: March 17, 2019, 09:39:04 PM »

Turns out that i might be connected to a faulty port in the cabinet.

Apparently, it should be outputting at 120Mb, but is only putting out 113Mb.

After various requests from my ISP for them to perform a Lift and shift, and them finding any excuse to not do t (plus tell me they had done it, which were blatant lies) it turns out the cabinet is full, so there are no spare ports.

Why they couldn't just say that to start with, god knows.

About 3 meters away, an additional cabinet was installed a year or so ago, so i might get moved to that one instead.
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j0hn

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  • Posts: 2330
Re: High Errors?
« Reply #3 on: March 18, 2019, 12:23:00 AM »

Apparently, it should be outputting at 120Mb, but is only putting out 113Mb.

No idea who told you that but they are talking nonsense

Engineers test the ports over tie cables, which are effected by crosstalk.

Every port tested will giving a different reading/attainable and the difference between 113 and 120 does not point to a faulty port.
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Plusnet FTTC 80/20 -  ECI now Huawei cab
retx low @ 3dB target SNRM
Zyxel VMG1312-B10A bridged with 1508 MTU + Asus RT-AC68U running Asuswrt-Merlin

Alucidnation

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  • Posts: 46
Re: High Errors?
« Reply #4 on: March 18, 2019, 06:38:50 AM »

No idea who told you that....

Another bloody Openreach engineer!
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michty_me

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  • Posts: 575
Re: High Errors?
« Reply #5 on: March 18, 2019, 06:57:55 AM »

So what makes you think there is an issue?
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Alucidnation

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  • **
  • Posts: 46
Re: High Errors?
« Reply #6 on: March 18, 2019, 07:06:16 AM »

Random disconnections, speed drops etc.

Openreach have admitted there is a problem.

One guy came to do a lift and shift, but didnít as he had apparently sorted the problem with their DCoE.

Had sync back at nearly 70 with no errors at all and was running fine.

Got up the next morning and I had a resync, back down to high 40ís.
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michty_me

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  • Posts: 575
Re: High Errors?
« Reply #7 on: March 18, 2019, 08:46:01 AM »

Now that is odd!
Not too sure what to suggest as there doesn't appear to be anything glaringly obvious.
When you sync at a higher speed again, can you get some stats from that?
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Alucidnation

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  • Posts: 46
Re: High Errors?
« Reply #8 on: March 18, 2019, 08:54:50 AM »

Now that is odd!
Not too sure what to suggest as there doesn't appear to be anything glaringly obvious.
When you sync at a higher speed again, can you get some stats from that?

I'll try but they haven't managed to get anywhere near that speed since.

Having said that, since then, all they have done is frantically dig up various joints and repair them, with no real improvement and not bothered to go back to the cabinet and do what the 'successful' engineer did.



I mentioned to the last engineer, that there was a chamber at the corner of our road, that hasn't had the cover off for years, but he didn't bother even lifting it to check to see what the condition of it was internally.

It may be empty but still.


I must admit, when i thought we were all sorted, i didn't bother getting any stats as i wrongly assumed that was the end of it and was all sorted!
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michty_me

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  • Posts: 575
Re: High Errors?
« Reply #9 on: March 18, 2019, 09:36:06 AM »

I think that would be the way forward so that we have something to compare to.
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ejs

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  • Posts: 1902
Re: High Errors?
« Reply #10 on: March 18, 2019, 06:24:05 PM »

Random disconnections, speed drops etc.

How often do the random disconnections occur? How many typically per day? How many typically per week?
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