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Author Topic: Slower Speed than usual Line STATS  (Read 479 times)

kennyspark8574

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Slower Speed than usual Line STATS
« on: September 05, 2017, 12:14:48 PM »

i have experienced a slight loss in connection speed over the last couple of months. I used to regularly get around 55-60mbs but noticed that it has recently dropped to around 36mb. Due to this i unlocked my huewei modem so that i could view line stats etc. below is the output from telnet session displaying my line stats. can anyone notice a problem here? Iv been scratching my head with this. Thanks

xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 1
Last initialization procedure status:   0
Max:    Upstream rate = 18000 Kbps, Downstream rate = 56404 Kbps
Bearer: 0, Upstream rate = 17499 Kbps, Downstream rate = 39994 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):        8.6             6.4
Attn(dB):        19.9            0.0
Pwr(dBm):        12.3            6.8
                        VDSL2 framing
                        Bearer 0
MSGc:           18              14
B:              31              238
M:              1               1
T:              64              63
R:              10              16
S:              0.0255          0.4348
L:              13200           4692
D:              1283            1
I:              42              255
N:              42              255
                        Counters
                        Bearer 0
OHF:            32324547                1780260
OHFErr:         0               22
RS:             3822536318              3705696
RSCorr:         57335           106
RSUnCorr:       0               0

                        Bearer 0
HEC:            0               0
OCD:            0               0
LCD:            0               0
Total Cells:    1798937762              0
Data Cells:     132194055               0
Drop Cells:     0
Bit Errors:     0               0

ES:             8634            53814
SES:            941             62
UAS:            2312            73069
AS:             79300

                        Bearer 0
INP:            3.50            0.00
INPRein:        0.00            0.00
delay:          8               0
PER:            2.45            6.87
OR:             78.26           23.27
AgR:            40072.04        17521.95

Bitswap:        43203/43329             259/267

Total time = 1 days 22 hours 3 min 55 sec
FEC:            358247922               255117
CRC:            307890          2008
ES:             8634            53814
SES:            941             62
UAS:            2312            73069
LOS:            30              0
LOF:            239             0
LOM:            0               0
Latest 15 minutes time = 3 min 55 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:            1212            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 = 22 hours 3 min 55 sec
FEC:            57415           106
CRC:            3751            22
ES:             10              1788
SES:            10              2
UAS:            37              2827
LOS:            1               0
LOF:            8               0
LOM:            0               0
Previous 1 day time = 24 hours 0 sec
FEC:            358190507               255011
CRC:            304139          1986
ES:             8624            52026
SES:            931             60
UAS:            2275            70242
LOS:            29              0
LOF:            231             0
LOM:            0               0
Since Link time = 22 hours 1 min 39 sec
FEC:            57335           106
CRC:            0               22
ES:             0               1788
SES:            0               2
UAS:            0               2800
LOS:            0               0
LOF:            0               0
LOM:            0               0
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tubaman

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Re: Slower Speed than usual Line STATS
« Reply #1 on: September 05, 2017, 01:31:30 PM »

You may wish to get this moved to the FTTC thread as you are clearly on VDSL. :)

Your DS speed of 39994 looks rather like a banded profile.
Can't say when that happened but your line stats for 'previous 1 day time' are horrendous - what on earth was going on? :ouch:
The US UAS (Unavailable Seconds) is almost as many as there are in the day.
The 'lastest 1 day time' is pretty awful too.

With stats this bad I'd be looking at a line fault - have you tried a Quiet Line Test to see if there's audible noise on the line?
 :)
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BT FTTC 80/20 Huawei Cab - Zyxel VMG3925

j0hn

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Re: Slower Speed than usual Line STATS
« Reply #2 on: September 05, 2017, 03:35:11 PM »

Wow, something doesn't look right there.
As said above the line looks banded (capped) at 40Mb.
It's not done by your ISP, but by the OpenReach DLM which your ISP had no control over. The banding is usually applied for too many resyncs, either manually or the line dropping itself.

I'd be worried about the huge number of ES though. I don't think I've ever seen so many ES on an interleaved line.
The upstream also had nearly 60000 ES in 2 days.

I would advise setting up DslStats and uploading the data to MyDSLWebStats to allow us to see what's going on with your line. It's impossible to tell from a small snapshot of stats. Something looks up though.

Has your DSL cable been removed but the modem ruining in the past couple days?

Previous 1 day time = 24 hours 0 sec
FEC:            358190507               255011
CRC:            304139          1986
ES:             8624            52026
SES:            931             60
UAS:            2275            70242
LOS:            29              0
LOF:            231             0
LOM:            0               0

Every single figure there looks whack. A crazy amount of FEC/CRC/ES/SES/UAS.

How can you have only 2000 crc on upstream but 50000+ Error Seconds.
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BT FTTC 55/10 ECI Huawei Cab - Zyxel VMG1312-B10A bridge mode + Asus RT-AC68U running Asuswrt-Merlin - minted on MDWS via DslStats

kennyspark8574

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Re: Slower Speed than usual Line STATS
« Reply #3 on: September 05, 2017, 03:48:07 PM »

Sorry guys im really not too clued up on this. I only recently fitted my unlocked modem (3 days ago). My Connection does seam to be very stable and doesnt drop, the main thing for me is the cap in speed when we used to get a solid 55mb. how would i do a "quite line test" many thanks for you replys.
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tubaman

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Re: Slower Speed than usual Line STATS
« Reply #4 on: September 05, 2017, 03:54:56 PM »

For the Quiet Line Test dial 17070 and pick the appropriate option (I can't remember which number it is but it'll be clear enough).
You should then hear - well, nothing much at all really (perhaps a small background hiss).
It's best done on a corded phone if you have one.
 :)
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BT FTTC 80/20 Huawei Cab - Zyxel VMG3925

kennyspark8574

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Re: Slower Speed than usual Line STATS
« Reply #5 on: September 05, 2017, 03:59:30 PM »

Thank you very much sir i will try this soon as im home from work :)
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kennyspark8574

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Re: Slower Speed than usual Line STATS
« Reply #6 on: September 05, 2017, 04:04:55 PM »

Here is also a snapshot image from inside of the webgui of my modem. Thanks

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RealAleMadrid

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Re: Slower Speed than usual Line STATS
« Reply #7 on: September 05, 2017, 04:54:52 PM »

The modem webgui is full of bugs so can't be relied on for any information, some of it may be correct such as the sync speeds but not much else. Always use the telnet access to get the correct info.
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Black Sheep

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Re: Slower Speed than usual Line STATS
« Reply #8 on: September 05, 2017, 06:59:28 PM »

For the Quiet Line Test dial 17070 and pick the appropriate option (I can't remember which number it is but it'll be clear enough).
You should then hear - well, nothing much at all really (perhaps a small background hiss).
It's best done on a corded phone if you have one.
 :)

QLT is 'Option 2' from 17070 ...... but most LLU's don't have that function, only BT classic circuits such as PlusNet, EE etc etc .....
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tubaman

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Re: Slower Speed than usual Line STATS
« Reply #9 on: September 05, 2017, 08:26:48 PM »

QLT is 'Option 2' from 17070 ...... but most LLU's don't have that function, only BT classic circuits such as PlusNet, EE etc etc .....

Thanks Black Sheep -I've learnt something new. :hat:
I suppose the next best thing is to dial a single digit to clear the dial tone and listen to that (appreciating that it will time-out after about 20secs).
 :)
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BT FTTC 80/20 Huawei Cab - Zyxel VMG3925
 

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