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Author Topic: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%  (Read 10297 times)

JordanBlack68

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #60 on: August 19, 2018, 11:57:38 AM »

Hi,

Noticed my IP Profile is now 74.1 instead of 77.35 even though my Sync is at 79999/19999 and my max Attainable is 82492 and 249595

I have an unlocked Openreach modem, if I cap my line to 64999 and 14999 would this cause the DLM ?

Cheers
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Hitman

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #61 on: August 19, 2018, 12:45:05 PM »

Hi,

Noticed my IP Profile is now 74.1 instead of 77.35 even though my Sync is at 79999/19999 and my max Attainable is 82492 and 249595

I have an unlocked Openreach modem, if I cap my line to 64999 and 14999 would this cause the DLM ?

Cheers

If you are on Rtx high then yes, can you post your --stats with the included INP: and INPRein: for Bearer 0 details to see if you have a high/low Rtx...

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JordanBlack68

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #62 on: August 19, 2018, 12:57:47 PM »

If you are on Rtx high then yes, can you post your --stats with the included INP: and INPRein: for Bearer 0 details to see if you have a high/low Rtx...

Code: [Select]
# xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 25699 Kbps, Downstream rate = 82828 Kbps
Bearer: 0, Upstream rate = 14992 Kbps, Downstream rate = 64989 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): 8.9 18.7
Attn(dB): 13.9 0.0
Pwr(dBm): 13.3 4.3
VDSL2 framing
Bearer 0
MSGc: -6 26
B: 130 237
M: 1 1
T: 0 35
R: 8 16
S: 0.0638 0.5041
L: 17440 4031
D: 8 1
I: 139 127
N: 139 254
Q: 8 0
V: 6 0
RxQueue: 136 0
TxQueue: 34 0
G.INP Framing: 18 0
G.INP lookback: 31 0
RRC bits: 0 24
Bearer 1
MSGc: 154 -6
B: 0 0
M: 2 0
T: 2 0
R: 16 0
S: 6.4000 0.0000
L: 40 0
D: 3 0
I: 32 0
N: 32 0
Q: 0 0
V: 0 0
RxQueue: 0 0
TxQueue: 0 0
G.INP Framing: 0 0
G.INP lookback: 0 0
RRC bits: 0 0
Counters
Bearer 0
OHF: 0 834244
OHFErr: 0 3
RS: 229837160 3424251
RSCorr: 113 0
RSUnCorr: 0 0
Bearer 1
OHF: 229042 0
OHFErr: 0 0
RS: 2289805 0
RSCorr: 3 0
RSUnCorr: 0 0

Retransmit Counters
rtx_tx: 1813066 0
rtx_c: 643 0
rtx_uc: 0 0

G.INP Counters
LEFTRS: 0 0
minEFTR: 64991 0
errFreeBits: 1009654230 0

Bearer 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 459767709 0
Data Cells: 8860303 0
Drop Cells: 0
Bit Errors: 0 0

Bearer 1
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 0 0
Data Cells: 0 0
Drop Cells: 0
Bit Errors: 0 0

ES: 0 168
SES: 0 0
UAS: 106 106
AS: 3679

Bearer 0
INP: 51.00 0.00
INPRein: 1.00 0.00
delay: 0 0
PER: 0.00 4.42
OR: 0.01 57.81
AgR: 65489.21 15049.52

Bearer 1
INP: 4.50 0.00
INPRein: 4.50 0.00
delay: 3 0
PER: 16.06 0.01
OR: 79.68 0.01
AgR: 79.68 0.01

Bitswap: 1352/1352 2/2

Total time = 1 days 19 hours 9 min 53 sec
FEC: 3074405 991
CRC: 0 185
ES: 0 168
SES: 0 0
UAS: 106 106
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 9 min 53 sec
FEC: 0 0
CRC: 0 1
ES: 0 1
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 15 minutes time = 15 min 0 sec
FEC: 30 0
CRC: 0 2
ES: 0 1
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 19 hours 9 min 53 sec
FEC: 2004 164
CRC: 0 40
ES: 0 36
SES: 0 0
UAS: 83 83
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 972475 355
CRC: 0 69
ES: 0 66
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Since Link time = 1 hours 1 min 19 sec
FEC: 113 0
CRC: 0 3
ES: 0 2
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0

Okay, I have applied the cap but also posted the stats for you mate
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adslmax

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #63 on: August 19, 2018, 01:19:56 PM »

Why would you cap the upstream at 14999K? Should be cap at 64000/20000/100000
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JordanBlack68

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #64 on: August 19, 2018, 01:29:53 PM »

Why would you cap the upstream at 14999K? Should be cap at 64000/20000/100000

Ahhh okay, wasn't totally sure
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j0hn

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #65 on: August 19, 2018, 02:23:08 PM »

You would only need to cap the upstream if that also had retx high. That may result in DLM removing G.INP from the upstream completely for anyone who is fortunate enough to have it.
I'm not too sure about the effect of retx high on upstream throughput though?

I edited a previous post and added this text below but will post it here again for the benefit of anyone who's been following the thread and wishing to try this.

Would anyone who is taking advantage of this advice to lower retransmission level and who runs DslStats spend a couple minutes of your time to contribute to the pool of knowledge.

I'm interested in seeing the following figures before capping your line and during the cap.

ES and FEC
and from the G.INP tab
rtx_tx, rtx_uc and LEFTERS

Snapshots/Screenshots of these graphs would be very much appreciated.
We would like to get some idea what parameters DLM is monitoring when deciding on retx high/low.

DslStats does not routinely gather snapshots of G.INP graphs but clicking the camera icon in the bottom left of DslStats while viewing each graph will take a snapshot of that particular graph.
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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

adslmax

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #66 on: August 19, 2018, 02:42:50 PM »

Mine still on retx low on bearer 0 and snr stay at 6.4dB with sync rate 78389k for nearly three days now no DLM act yet on target Snr 3dB
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j0hn

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #67 on: August 19, 2018, 03:10:36 PM »

Max DLM will likely take weeks/months before it tries lowering your SNRM.
Your line has been running at full sync on 6dB for months.

I've no idea why you are getting so worked up over 1.6Mb  :no:
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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

pooclah

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #68 on: August 19, 2018, 06:27:50 PM »

I donít need the re-tx low but in the interest of the experiment Iím happy to give it a go and will be capping my line shortly.

My current stats are:

Code: [Select]
xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 25164 Kbps, Downstream rate = 81488 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): 4.4 15.3
Attn(dB): 11.8 0.0
Pwr(dBm): 12.7 -0.9
VDSL2 framing
Bearer 0
MSGc: -6 26
B: 162 237
M: 1 1
T: 0 42
R: 8 16
S: 0.0647 0.3781
L: 21128 5374
D: 8 1
I: 171 127
N: 171 254
Q: 8 0
V: 2 0
RxQueue: 136 0
TxQueue: 34 0
G.INP Framing: 18 0
G.INP lookback: 31 0
RRC bits: 0 24
Bearer 1
MSGc: 186 -6
B: 0 0
M: 2 0
T: 2 0
R: 16 0
S: 5.3333 0.0000
L: 48 0
D: 3 0
I: 32 0
N: 32 0
Q: 0 0
V: 0 0
RxQueue: 0 0
TxQueue: 0 0
G.INP Framing: 0 0
G.INP lookback: 0 0
RRC bits: 0 0
Counters
Bearer 0
OHF: 0 2383145
OHFErr: 6 1282
RS: 2727330880 4082190
RSCorr: 114770 76517
RSUnCorr: 0 0
Bearer 1
OHF: 54901416 0
OHFErr: 0 0
RS: 658816249 0
RSCorr: 0 0
RSUnCorr: 0 0

Retransmit Counters
rtx_tx: 401992 0
rtx_c: 12107 0
rtx_uc: 29 0

G.INP Counters
LEFTRS: 9 0
minEFTR: 79980 0
errFreeBits: 1075859857 0

Bearer 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 2523117061 0
Data Cells: 4050885085 0
Drop Cells: 0
Bit Errors: 0 0

Bearer 1
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 0 0
Data Cells: 0 0
Drop Cells: 0
Bit Errors: 0 0

ES: 3 1133
SES: 0 0
UAS: 20 20
AS: 881875

Bearer 0
INP: 52.00 0.00
INPRein: 1.00 0.00
delay: 0 0
PER: 0.00 3.98
OR: 0.01 64.22
AgR: 80244.76 20063.54

Bearer 1
INP: 4.00 0.00
INPRein: 4.00 0.00
delay: 3 0
PER: 16.06 0.01
OR: 95.62 0.01
AgR: 95.62 0.01

Bitswap: 473433/473433 4217/4217

Total time = 1 days 4 hours 58 min 15 sec
FEC: 114770 76517
CRC: 6 1282
ES: 3 1133
SES: 0 0
UAS: 20 20
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 13 min 15 sec
FEC: 31 8
CRC: 0 2
ES: 0 2
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 15 minutes time = 15 min 0 sec
FEC: 9 13
CRC: 0 9
ES: 0 4
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 4 hours 58 min 15 sec
FEC: 720 170
CRC: 0 39
ES: 0 31
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 3547 19606
CRC: 0 142
ES: 0 126
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Since Link time = 10 days 4 hours 57 min 53 sec
FEC: 114770 76517
CRC: 6 1282
ES: 3 1133
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0

My stats are viewable at https://www.pooclah.net/dslstats

Unfortunately I donít keep history, donít have time to set it up this evening, and working away Monday to Friday so it wonít happen any time soon.

If anyone is interested they can keep an eye on my stats from the link above.

Kevin
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j0hn

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #69 on: August 19, 2018, 09:15:10 PM »

It's very much appreciated unfortunately none of the G.INP stats are snapshot automatically or in the Webserver.

Could you possibly click the camera in the bottom left of each of the G.INP tabs on DslStats?

Once now with a graph full of pre cap stats, then a further once during the cap should suffice.  :hat:
a graph of half and half would be alright too.
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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

adslmax

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #70 on: August 19, 2018, 10:07:20 PM »

https://www.pooclah.net/dslstats/

I like this setup how to do this?
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Archetype486

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #71 on: August 19, 2018, 10:44:53 PM »

Would anyone who is taking advantage of this advice to lower retransmission level and who runs DslStats spend a couple minutes of your time to contribute to the pool of knowledge.

I am happy about sharing anything I have. I don't think I have anything before capping my line but I will look through my archives and backups.

I am away from home for the next couple of days but I will see what I have access to remotely.

I have not got around to setting consistent saving of data since MDWS closed down
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burakkucat

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #72 on: August 19, 2018, 11:03:35 PM »

https://www.pooclah.net/dslstats/

I like this setup how to do this?

Make a start by reading through this thread, Max. There should be enough there to get you going with your own customised version.
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adslmax

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #73 on: August 20, 2018, 12:15:14 AM »

Make a start by reading through this thread, Max. There should be enough there to get you going with your own customised version.

Sorry I am thick, don't know how to setup etc..can anyones please explain how to do this step by step in windows 10. I have posted this thread as above.
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adslmax

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Re: Openreach FTTC Target SNR 3dB reduced Bras IP Profile to 92.64%
« Reply #74 on: August 20, 2018, 12:08:49 PM »

Max DLM will likely take weeks/months before it tries lowering your SNRM.
Your line has been running at full sync on 6dB for months.

I've no idea why you are getting so worked up over 1.6Mb  :no:

My router has been resync just confirmed by dslstats alert email at 11:34am and it changed from the upstream to reduced 19999K to 17745K and downstream reduced from 78389K to 74022K and reduced upstream SNR from 15.1dB to 7.6dB but the downstream SNR went up from 6.4dB to 7.3dB. Interleave Depth annd INP are unchanged.

Code: [Select]
DSLAM type / SW version: BDCM:0xa48c (164.140) / v0xa48c
Modem/router firmware:  AnnexA version - A2pv6F039g1.d24m
DSL mode:                VDSL2 Profile 17a
Status:                  Showtime
Uptime:                  0 hour 31 min 36 sec
Resyncs:                1 (since 20 Aug 2018 01:08:14)

Downstream Upstream
Line attenuation (dB):  12.0 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 74022 17745
SNR margin (dB):        7.3 7.6
Power (dBm):            12.5 1.3
Interleave depth:        8 1
INP:                    49.00 0
G.INP:                  Enabled Not enabled
Vectoring status:        5 (VECT_UNCONFIGURED)

RSCorr/RS (%):          0.7344 0.0000
RSUnCorr/RS (%):        0.0000 0.0000
ES/hour:                1.62 4.13

Code: [Select]
Bearer 0
INP:            49.00           0.00
INPRein:        0.00            0.00
delay:          0               0
PER:            0.00            6.91
OR:             0.01            28.92
AgR:            74097.89        17774.56

                        Bearer 1
INP:            4.50            0.00
INPRein:        4.50            0.00
delay:          3               0
PER:            16.06           0.01
OR:             79.68           0.01
AgR:            79.68   0.01

Bitswap:        1432/1433               469/471

My throughput are very poor via ethernet don't know why it capped at 50/16 from 74/19

http://www.speedtest.net/result/7566551392.png

« Last Edit: August 20, 2018, 12:14:02 PM by adslmax »
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