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Author Topic: Openreach engineer has reset DLM to open profile on my line  (Read 17924 times)

adslmax

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Openreach engineer has reset DLM to open profile on my line
« on: August 21, 2018, 03:48:56 PM »

I didn't know PN has booked an engineer to turn up at my door this morning to enter my property and he agree to resetted DLM to open profile and told me to leave it on for two days before G.INP get back but he told me bad news that my FTTC cabinet won't get back to 79999K because the cabinet (pcp8) almost nearly filled up. Lucky PN, as I almost going out for the day. I was surprise PN never informed me of an engineer to turn up today. Anyway I did ask the engineer if G.Fast or FTTP ever come to my area for Cuckoo Oak. He say that my area are supposed to be G.Fast this month but Openreach has decided to withdrawnal it because not enough peoples on FTTC in Telford suggest that peoples using Virgin Media cable. For FTTP, there is no chance for Telford, he say.

Here is full stats of open profile for now:

Code: [Select]
DLM Resetted (Open Profile for first two days) 21st August 2018 by Openreach Engineer at 11:33am

Connection stats

adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 26797 Kbps, Downstream rate = 80556 Kbps
Bearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 67526 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):        6.2             15.1
Attn(dB):        12.0            0.0
Pwr(dBm):        12.5            0.9

                        VDSL2 framing
                        Bearer 0
MSGc:           18              26
B:              51              237
M:              1               1
T:              64              42
R:              12              16
S:              0.0245          0.3781
L:              20896           5374
D:              1321            1
I:              64              127
N:              64              254

                        Counters
                        Bearer 0
OHF:            138477          54774
OHFErr:         0               0
RS:             35450023                2299498
RSCorr:         0               0
RSUnCorr:       0               0

                        Bearer 0
HEC:            0               0
OCD:            0               0
LCD:            0               0
Total Cells:    28308888                0
Data Cells:     12256           0
Drop Cells:     0
Bit Errors:     0               0

ES:             0               0
SES:            0               0
UAS:            0               0
AS:             218

                        Bearer 0
INP:            3.00            0.00
INPRein:        0.00            0.00
delay:          8               0
PER:            1.57            3.98
OR:             121.96          64.22
AgR:            67647.75        20063.54

Bitswap:        0/0             0/0

Total time = 7 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 15 minutes time = 7 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
Previous 15 minutes time = 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 = 7 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
Previous 1 day time = 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
Since Link time = 7 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
________________________________________________________________________________________

xDSL
Mode VDSL2
Traffic Type PTM
Status Up
Link Power State L0
Downstream Upstream
Line Coding (Trellis) On On
SNR Margin (dB) 6.2 15.1
Attenuation (dB) 12.0 0.0
Output Power (dBm) 12.5 0.9
Attainable Rate (Kbps) 80556 26797
Rate (Kbps) 67526 19999
B (# of bytes in Mux Data Frame) 51 237
M (# of Mux Data Frames in an RS codeword) 1 1
T (# of Mux Data Frames in an OH sub-frame) 64 42
R (# of redundancy bytes in the RS codeword) 12 16
S (# of data symbols over which the RS code word spans) 0.0245 0.3781
L (# of bits transmitted in each data symbol) 20896 5374
D (interleaver depth) 1321 1
I (interleaver block size in bytes) 64 127
N (RS codeword size) 64 254
Delay (msec) 8 0
INP (DMT symbol) 3.00 0.00
OH Frames 217243 85573
OH Frame Errors 0 0
RS Words 55614255 3611371
RS Correctable Errors 0 0
RS Uncorrectable Errors 0 0
HEC Errors 0 0
OCD Errors 0 0
LCD Errors 0 0
Total Cells 44411191 0
Data Cells 14932 0
Bit Errors 0 0
Total ES 0 0
Total SES 0 0
Total UAS 0 0
________________________________________________________________________________________

Stats recorded 21 Aug 2018 11:33:00

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 7 min 0 sec
Resyncs:                0 (since 21 Aug 2018 11:33:00)

Downstream Upstream
Line attenuation (dB):  12.0 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 67526 19999
SNR margin (dB):        6.2 15.1
Power (dBm):            12.5 0.9
Interleave depth:        1321 1
INP:                    3.00 0
G.INP:                  Not enabled Not enabled
Vectoring status:        5 (VECT_UNCONFIGURED)

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


80556 26797 Attainable Rate (Kbps)
67526 19999 Sync Rate (Kbps)
6.2 15.1 SNR Margin (dB)
12.0 0.0 Line Attenuation (dB)
12.5 0.9 Output Power (dBm)
1321 1 Interleave Depth
3.00 0.00 INP
Not enabled Not enabled G.INP
5 (VECT_UNCONFIGURED) Vectoring status

Bearer 0
INP:            3.00            0.00
INPRein:        0.00            0.00
delay:          8               0
PER:            1.57            3.98
OR:             121.96          64.22
AgR:            67647.75        20063.54

Bitswap:        0/0             0/0

For your connection, the acceptable range of speeds is 40 Mbps-65.36 Mbps
Additional Information:
IP Profile for your line is - 65.36 Mbps
« Last Edit: August 21, 2018, 03:52:54 PM by adslmax »
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j0hn

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #1 on: August 21, 2018, 04:28:22 PM »

What did you contact Plusnet about for them to send an engineer?
You had a single resync that was a little lower than usual. Hardly cause for an engineer visit. Not cause to contact your ISP either.

You may get back to 80Mb now though.
DLM should lower your target SNRM to 5dB a few days after applying G.INP.
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g3uiss

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #2 on: August 21, 2018, 04:30:10 PM »

Looks like you have interleaving on with INP of 3 and a delay of 8

That’s not what I think you mean by an “open profile”
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adslmax

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #3 on: August 21, 2018, 04:30:31 PM »

I never ask Plusnet to send out engineer. They found a fault on the line. They sent off to BT Wholesale yesterday. No one metion me of an engineer to come out or booked in.
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adslmax

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #4 on: August 21, 2018, 04:32:35 PM »

Looks like you have interleaving on with INP of 3 and a delay of 8

That’s not what I think you mean by an “open profile”

Openreach has resetted DLM open profile on his big tool kit (JS2 something) he spend half an hour to resetted everything on DLM.
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Ixel

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #5 on: August 21, 2018, 04:48:34 PM »

I can only dream of getting speeds like that from a single line, but at the moment I have two lines bonded while one is flapping a lot because of an intermittent fault which I can't get to clearly register yet so AAISP can pursue it.

Looks like you have interleaving on with INP of 3 and a delay of 8

That’s not what I think you mean by an “open profile”

Temporary traditional interleaving for the downstream is standard for a DLM reset.
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j0hn

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #6 on: August 21, 2018, 04:52:26 PM »

Looks like interleaving might be the default for new provisions too.
On both ECI and Huawei lines.
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g3uiss

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #7 on: August 21, 2018, 04:56:11 PM »



Temporary traditional interleaving for the downstream is standard for a DLM reset.

I think the verbage open profile threw me.
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adslmax

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #8 on: August 21, 2018, 05:11:53 PM »

I got a history of last DLM remotely resetted by Plusnet on 29th January 2018 to compared to today DLM resetted by an engineer:

29/01/2018:
Code: [Select]
Downstream   Upstream
Line attenuation (dB):     11.3      0.0
Signal attenuation (dB):   Not available on VDSL2     
Attenuation rate (kbps):   83026      27648
Connection speed (kbps):   69594      19999 (79999     19999 when enabled G.INP after 3 days)
SNR margin (dB):           6.2      15.2
Power (dBm):               12.5      -1.3
Interleave depth:          1363      1
INP:                       3.00      0
G.INP:                     Not Enabled      Not Enabled

21/08/2018
Code: [Select]
Downstream   Upstream
Line attenuation (dB):     12.0      0.0
Signal attenuation (dB):   Not available on VDSL2     
Attenuation rate (kbps):   80556      26797
Connection speed (kbps):   67526      19999 (76999     19999 when enabled G.INP soon within 3 days - look likely no chance of 79999)
SNR margin (dB):           6.2      15.1
Power (dBm):               12.5       0.9
Interleave depth:          1321      1
INP:                       3.00      0
G.INP:                     Not Enabled      Not Enabled

I reckon when G.INP is enabled will only get sync rate around 76999 something like that ?
« Last Edit: August 21, 2018, 05:15:05 PM by adslmax »
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j0hn

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #9 on: August 21, 2018, 05:43:28 PM »

Yes but because you will be under 79,999 this time DLM might lower your SNRM target a couple days after G.INP returns.

It would only need to go to 5dB you get you max sync.
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shaun1264

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #10 on: August 21, 2018, 06:05:13 PM »

Quote
was surprise PN never informed me of an engineer to turn up today.

Thats what happened to me last year.  An engineer came out even before I agreed to one coming out.  Unfortunately that engineer turned up and was sent away by a family member who thought there was nothing wrong with the line.
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adslmax

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #11 on: August 21, 2018, 06:05:47 PM »

j0hn

What happen if DLM put retx high on bearer 0 (INPRein:1.00) with target SNR 5dB? What to do next? Or leave it alone!

It's would be very interesting now. Because it now open profile after DLM resetted. How long to get G.INP back on? What was Bearer 0 retx are like and how long before target snr 5 next and what the Bearer 0 retx are like, high or low? Only sit back and have to wait and see.

Will updated here when DLM has put G.INP back on
« Last Edit: August 21, 2018, 06:10:52 PM by adslmax »
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kitz

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #12 on: August 21, 2018, 07:14:53 PM »

Quote
Because it now open profile after DLM resetted.

No it's not.  It's on Default Profile.  See DLM Profiles

Quote
After a DLM reset the initial profile is: -

       Downstream: Interleaving (& INP) Low.  Upstream: Interleaving Off.

Actual words straight from Ian Lawrence who was Openreach Chief Engineer.

Quote
Downstream

Initially, low interleaving is enabled by default on all retransmission lines. Once DLM has positively identified that the modem supports retransmission then retransmission is enabled. This happens after a few days. If the low level of retransmission is not good enough to correct all errors then the high level is selected by DLM.  If the line remains unstable and cannot be adequately managed by DLM with retransmission profile then Interleaving is applied as normal.

This is old news from 3 &1/2 yrs ago now.

Open Profile means No Interleaving, No INP, No G,INP.    You very obviously have INP = 3 & Delay=8 which means Low Interleave.
I honestly find it hard to believe that you've been hanging around broadband forums for so long and not know this, nor be able to spot INP=3 and Delay=8 in your stats. :(

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adslmax

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #13 on: August 22, 2018, 01:24:43 AM »

I am sorry Kitz but I do believe this DLM resetted to open profile is now all changed. Openreach engineer did show me his tool kit Open Profile. I do believe all DLM resetted are now in low interleave depth to stable the line as fast path are no longer in open profile.
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adslmax

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Re: Openreach engineer has reset DLM to open profile on my line
« Reply #14 on: August 22, 2018, 01:28:24 AM »

Open Profile means No Interleaving, No INP, No G,INP.    You very obviously have INP = 3 & Delay=8 which means Low Interleave.
I honestly find it hard to believe that you've been hanging around broadband forums for so long and not know this, nor be able to spot INP=3 and Delay=8 in your stats. :(

Billion router and openreach tool kit did showing Non G.INP in Open Profile even in a low interleave depth 1321 INP 3 to stable all FTTC lines for the first connection for first two days. It's 100% definitely open profile.
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