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[spirie]

Hi

I had Infinity 2 connected at the beginning of January and for the first 14 days it was fine! However my line experienced a fault (now rectified) and since the 14th day my throughput speeds having been between approx 13 & 25 Mbps lower than those first 14 days.

I now have an unlocked Huawei modem and can telnet into it, but don't understand the stats to explain what type of FTTC cabinet I'm on etc.

If I was to upload these stats could someone take a look and help me understand them please?

Also could someone point me in the right direction to the software that everyone else has that produces graphs from the stats

Many thanks in advance

Shane

[Black Sheep]

Assuming it was a line fault you had, when the 'fault' was rectified did the engineer request a DLM reset You may still be stuck at the 'Faulty DLM profile' if not ??

[roseway]

There are a few options for router monitoring:-

- Bald_Eagle1's scripts: http://forum.kitz.co.uk/index.php/topic,11216.0.html (look near the end of the thread)
- My own humble offering rs-ux/rs-w for Linux and Windows: http://rsux.plainroad.me.uk
- lxel's plotter project (not yet available for download, I believe): http://forum.kitz.co.uk/index.php/topic,11641.0.html

[spirie]

Assuming it was a line fault you had, when the 'fault' was rectified did the engineer request a DLM reset You may still be stuck at the 'Faulty DLM profile' if not ??

Hi Black Sheep

Apparently it was an earth fault in the u/g joint box outside, when he arrived he said he would request a reset, but by the time he left it sounded like he had talked himself out of it, saying the line would recover on it's own

My Interleavng depth for download is 1238 is that normal, high or indifferent?

[spirie]

There are a few options for router monitoring:-

- Bald_Eagle1's scripts: http://forum.kitz.co.uk/index.php/topic,11216.0.html (look near the end of the thread)
- My own humble offering rs-ux/rs-w for Linux and Windows: http://rsux.plainroad.me.uk
- lxel's plotter project (not yet available for download, I believe): http://forum.kitz.co.uk/index.php/topic,11641.0.html

Hi roseway

Funnily enough Ronski had pointed me to the rs-w and i'm trying to set it up right now, but thanks for other links too

[spirie]

These are my stats from rs-w, can anyone see something wrong? - my throughput is approx 46 - 48Mbps is this about right?

DSLAM/MSAN type:      IFTN
DSL mode:        VDSL2
Status:          Showtime
          
           Downstream  Upstream
Attenuation (dB):         0.0         0.0
Connection speed (kbps):  66998         20000
SNR margin (dB):          6.4         9.3
Power (dBm):              12.6         5.3
Interleave depth:         1238         1   

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   2
Max:   Upstream rate = 26843 Kbps, Downstream rate = 80464 Kbps
Path:   0, Upstream rate = 20000 Kbps, Downstream rate = 66998 Kbps

Link Power State:   L0
Mode:         VDSL2 Annex B
VDSL2 Profile:      Profile 17a
TPS-TC:         PTM Mode
Trellis:      U:ON /D:ON
Line Status:      No Defect
Training Status:   Showtime
      Down      Up
SNR (dB):    6.4       9.4
Attn(dB):    0.0       0.0
Pwr(dBm):    12.7       5.3     

If there's anything else you need, let me know and I will try to get it here lol

Thanks

[Ronski]

Max:   Upstream rate = 26843 Kbps, Downstream rate = 80464 Kbps
Path:   0, Upstream rate = 20000 Kbps, Downstream rate = 66998 Kbps

That means you have an attainable upstream rate of 26843 Kbps, and downstream rate of 80464 Kbps.

You are synced at a upstream rate of 20000 Kbps and downstream rate of 66998 Kbps

So you should be able to get wired (not using wireless or homeplugs) speed test results around 64Mbps on a reliable speed tester.

If you're with Plus Net you should be able to see your line speed in the connections setting on the members portal, I don't know about other ISP's.

[spirie]

If you're with Plus Net you should be able to see your line speed in the connections setting on the members portal, I don't know about other ISP's.

Unfortunately I'm with Beattie, so I can't find out s*d all lol

Does my interleave depth explain anything?

BTW the modem has just turned up too Cheers for that!

[Bald_Eagle1]

Does my interleave depth explain anything?

It's quite high. Mine is around 400 on a much lower speed approximately 1000m length connection.

From the lower down the xdslcmd info --stats data, you should also see INP & delay values.

Typically, these are 3.00 & 8.00 respectively.

If yours are higher, it suggests that DLM has detected Impulse Noise Pulses & has increased delay & Interleaving depth to provide more stability at the expense of some speed.

[spirie]

From the lower down the xdslcmd info --stats data, you should also see INP & delay values.

Typically, these are 3.00 & 8.00 respectively.

If yours are higher, it suggests that DLM has detected Impulse Noise Pulses & has increased delay & Interleaving depth to provide more stability at the expense of some speed.

Hi Bald_Eagle1

Firstly, thank you for your time

I have inserted the rest of the stats below

Do these help to identify anything???

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   2
Max:   Upstream rate = 25333 Kbps, Downstream rate = 79432 Kbps
Path:   0, Upstream rate = 20000 Kbps, Downstream rate = 66998 Kbps

Link Power State:   L0
Mode:         VDSL2 Annex B
VDSL2 Profile:      Profile 17a
TPS-TC:         PTM Mode
Trellis:      U:ON /D:ON
Line Status:      No Defect
Training Status:   Showtime
      Down      Up
SNR (dB):    6.1       8.1
Attn(dB):    0.0       0.0
Pwr(dBm):    12.6       5.3
         VDSL2 framing
         Path 0
B:      54      236
M:      1      1
T:      64      5
R:      14      16
S:      0.0261      0.3771
L:      21137      5410
D:      1238      1
I:      69      255
N:      69      255
         Counters
         Path 0
OHF:      33157894      1334623
OHFErr:      0      14
RS:      2071348073      237871
RSCorr:      201232      135
RSUnCorr:   0      0

         Path 0
HEC:      0      0
OCD:      0      0
LCD:      0      0
Total Cells:   1081201539      0
Data Cells:   80354516      0
Drop Cells:   0
Bit Errors:   0      0

ES:      5      14
SES:      5      0
UAS:      43      43
AS:      41730

         Path 0
INP:      3.00      0.00
PER:      1.25      6.12
delay:      8.00      0.00
OR:      134.02      203.67

Bitswap:   5898      86

Total time = 14 hours 32 min 35 sec
FEC:      203663      918
CRC:      2717      14
ES:      5      14
SES:      5      0
UAS:      43      43
LOS:      4      0
LOF:      5      0
Latest 15 minutes time = 2 min 35 sec
FEC:      140      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
Previous 15 minutes time = 15 min 0 sec
FEC:      5320      7
CRC:      0      2
ES:      0      2
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
Latest 1 day time = 14 hours 32 min 35 sec
FEC:      203663      918
CRC:      2717      14
ES:      5      14
SES:      5      0
UAS:      43      43
LOS:      4      0
LOF:      5      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
Since Link time = 11 hours 35 min 29 sec
FEC:      201232      135
CRC:      0      14
ES:      0      14
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
#                                           

xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   2
Max:   Upstream rate = 25298 Kbps, Downstream rate = 79432 Kbps
Path:   0, Upstream rate = 20000 Kbps, Downstream rate = 66998 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
       VDSL Port Details       Upstream        Downstream
Attainable Net Data Rate:      25298 kbps         79432 kbps
Actual Aggregate Tx Power:        5.3 dBm          12.7 dBm
============================================================================
  VDSL Band Status        U0      U1      U2      U3      D1      D2      D3
  Line Attenuation(dB):    0.6    23.5    39.3     N/A    12.5    32.8    53.1   
Signal Attenuation(dB):    0.6    23.4    39.2     N/A    12.5    32.8    53.1   
        SNR Margin(dB):    8.6    8.7    7.9     N/A    6.1    6.2    6.1   
         TX Power(dBm):   -5.0   -19.8    4.8     N/A    9.1    7.5    6.7            

[Bald_Eagle1]

Hi Bald_Eagle1

Firstly, thank you for your time

I have inserted the rest of the stats below

Do these help to identify anything???

It's hard to say without any "before & after" stats/graphs.

We can see that the connection seems to have resynced "on the fly" (Retrain Reason:   2) 41730 seconds ago (around 11.6 hours).

That may have been due to you altering a setting or DLM deciding that it needed to take some action to increase stability.

Your error seconds (ES) & serious error seconds (SES) are low.

Your current DS SNRM margin is around the target 6dB, so it suggests the syncs speed of 66998 Kbps is all your connection can achieve.

However, that 66998 Kbps does look very much like a banded/capped sync speed, possibly applied due to to the "problem" that has now been rectified.

Occasionally, these banded sync speeds eventually resolve of their own accord, subject to DLM seeing a sustained period of stability (3 weeks or more).

Do you know what work was done to rectify the problem & whether or not the engineer(s) requested a DLM reset?

If a DLM reset wasn't requested, that may be the answer.

Getting DLM reset whilst you are achieving such relatively high speeds is a completely different matter though.

I wonder if Black Sheep is able to offer any advice on the best way to approach this (if that is what is currently restricting your sync speed)?

It may not be that though as I would have expected to see higher SNRM levels, that would indicate that your connection has the potential for higher sync speeds.



EDIT:

Just noticed your earlier message confirming that the engineer didn't request a DLM reset after all.
I wonder why not. It doesn't take long to arrange & in my own opinion should be done every time some physical repairs have been carried out.

[spirie]

Sorry Bald_Eagle1, I thought you knew that the issue I have is with my throughput speed.

I had an earth fault on the line, the broadband engineer came out on Tuesday and found the BT66 outside star wired. He then eclipse tested the line and it came back LTOK. The sync speed then was around 52000kbps with Attainable at 58 and throughput around 45/46. He said that the DLM probably didn't need to be reset as the line was recovering by itself.

However that afternoon, I noticed crackling on the phone line and the connection/sync kept dropping every 30 mins or so. Eventually the sync speed had gone down to 42000kbps. So I tested online to see if there was still a line fault and there was -  surprise surprise an Earth Fault in the D Side network.

A u/g engineer turned up on Wednesday and found the fault in a u/g joint box outside (soaking wet). He fixed this, but said there wasn't anything he could do about resetting the broadband as the fault had been reported as a line fault only

The sync speed after he left was around 53000 kbps with throughput around 47/48. Then this morning at sometime around 5am the line re/synced at 66998kbps but the throughput and profile still sit at 47/48 and 51.72???

So my question is, is there anything in the stats that indicate why although my sync has suddenly shot up, the throughput remains low?

Sorry to be confusing But any help would be appreciated

[Bald_Eagle1]

So my question is, is there anything in the stats that indicate why although my sync has suddenly shot up, the throughput remains low?

Sorry to be confusing But any help would be appreciated

By my reckoning, using the 96.79% rule, your IP Profile as reported by BT should be around 64.85Mb.

On the fly resyncs tend to be very quick, sometimes too quick to initiate a new PPP session.
A new PPP session is required to update the IP Profile.

Quite often a ROUTER disconnection/reconnection will trigger an IP Profile update. Have you tried that yet?

I would advise NOT resetting/rebooting the MODEM  for a few days.

Your HG612 connection stats, whilst related to an extent, do not directly dictate throughput speeds.
There is nothing obvious in your HG612 stats to suggest why actual throughput is currently low.

Try the ROUTER reset & then check your IP Profile & throughput speeds as that won't upset DLM at all.

[spirie]

By my reckoning, using the 96.79% rule, your IP Profile as reported by BT should be around 64.85Mb.

On the fly resyncs tend to be very quick, sometimes too quick to initiate a new PPP session.
A new PPP session is required to update the IP Profile.

Quite often a ROUTER disconnection/reconnection will trigger an IP Profile update. Have you tried that yet?

Try the ROUTER reset & then check your IP Profile & throughput speeds as that won't upset DLM at all.

OMG - that was it, just a drop & re-connect of the router and my IP Profile has shot to exactly 64.85Mbps and throughput is around 62!

You are the man, thanks Bald_Eagle and everyone else that contributed

On a side note can you tell from my stats which type of FTTC cabinet I'm connected to? Ronski did send me some pics of cabinets, but they all look the same to me lol 

[Bald_Eagle1]

On a side note can you tell from my stats which type of FTTC cabinet I'm connected to? Ronski did send me some pics of cabinets, but they all look the same to me lol 

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)

&

DSLAM/MSAN type:      IFTN

Confirm that it is an ECI DSLAM