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[MikeZ]

just woke up and checked my latency if something changed and shocked at the same time. DLM has kick in and added massive amount of interleaving to my line and destroyed my line  - ping to bbc.co.uk went up to 35ms from 21ms and upload speed dropped from 8mbps to 6mbps. You can check my stats on mydslwebstats.co.uk nickname: N0STIE
I think I am gonna swap it back to eci/r as this is unnacceptable.

If you've been power-cycling/disconnecting/reconnecting the HG612 a lot then that will have contributed. Switching back to the ECI won't make any difference now. Just leave things to settle (HG612 permanently connected and powered on). It may take up to a few weeks for DLM to move the rate again.

[Dray]

If you've been power-cycling/disconnecting/reconnecting the HG612 a lot then that will have contributed. Switching back to the ECI won't make any difference now. Just leave things to settle (HG612 permanently connected and powered on). It may take up to a few weeks for DLM to move the rate again.

and at least you will know, whereas with the ECI you'll never know.

[N0STIE]

Yeah, I think I will leave it connected 24/7 for few weeks, what if my HH5 drops? Interleaving depth of 1127 down and 97 up + 13/8 delay is massive isnt it? When can I expect first reduction of latency which is very important for me as I usually play online games such as CS:GO where latency is a key.

[MikeZ]

Yeah, I think I will leave it connected 24/7 for few weeks, what if my HH5 drops? Interleaving depth of 1127 down and 97 up + 13/8 delay is massive isnt it? When can I expect first reduction of latency which is very important for me as I usually play online games such as CS:GO where latency is a key.

It doesn't matter if the HH5 drops - that will just restart the PPP session. You need to make sure the HG612 doesn't disconnect or restart, if you can help it, as that's what's maintaining sync.

I had similar interleaving to you - it took 15 days for US interleaving to be removed and then a further 4 weeks (I think) before DS was removed.

[N0STIE]

4 weeks? seems like long holiday coming up

[michty_me]

Most of my 'penalties' from DLM have been removed in a number of days. Check again in 3 days or so but keep the HG612 connected and powered up.

[WWWombat]

A different Zen support member came back to me yesterday stating the following about my line.

The DSLAM is reporting your circuit is using a different type of protection known as G.INP / Retransmission, this is essentially that whenever an error is detected on the circuit this will be corrected on demand & in real-time; any other time the circuit is not erroring, then it's literally like interleaving is turned off.

It may simply be that your modem is reporting that the connection is being interleaved when in reality G.INP is actually in play.

He's mostly correct.

I think the best thing to remember is that all of these error-protection mechanisms can be turned on and off independently - so can be used together if necessary. Unfortunately, this requires a nuanced explanation, but support staff aren't always well versed in grasping the full breadth of complexity involved.

In your case, G.INP retransmission is the predominant protection, with very small levels of FEC and interleaving protection added. Interleaving isn't quite turned off, but it can be considered to be turned down to a great extent.

[WWWombat]

Interleaving depth of 1127 down and 97 up + 13/8 delay is massive isnt it?

The delays are indeed massive - a surprise to see such a value upstream too.

What DLM is looking for now is stability. Once that returns, things can improve quickly.

I went through a bad patch with our house power tripping. It took less than a day, with a lot of outages, to cause DLM to intervene heavily. However, once I stopped the trips (and fitted a UPS), things were back to normal within 4 days.

[michty_me]

He's mostly correct.

I think the best thing to remember is that all of these error-protection mechanisms can be turned on and off independently - so can be used together if necessary. Unfortunately, this requires a nuanced explanation, but support staff aren't always well versed in grasping the full breadth of complexity involved.

In your case, G.INP retransmission is the predominant protection, with very small levels of FEC and interleaving protection added. Interleaving isn't quite turned off, but it can be considered to be turned down to a great extent.

Thanks for your input WWWombat. I am happy with the way my line performs. I was just more curious as to how it all worked and it is starting to look a bit complex. I've never had any issues with gaming or anything like that. I most likely would not notice a drop of 10ms or so anyway. The main thing it is stable and has no adverse effects on my experience.

[N0STIE]

My connection just resynced, here are the results, 13ms to bbc.co.uk. I hope it will stay like that forever. Oh completely forgot about todays downgrade to Infinity 1. May it affect my latency once again?

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   1
Last initialization procedure status:   0
Max:   Upstream rate = 8338 Kbps, Downstream rate = 47608 Kbps
Bearer:   0, Upstream rate = 8069 Kbps, Downstream rate = 39973 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):    10.0       6.2
Attn(dB):    22.3       0.0
Pwr(dBm):    12.6       5.8
         VDSL2 framing
         Bearer 0
MSGc:      18      26
B:      239      238
M:      1      1
T:      64      27
R:      0      16
S:      0.1911      0.9418
L:      10048      2166
D:      1      1
I:      240      255
N:      240      255
         Counters
         Bearer 0
OHF:      1125023      271660
OHFErr:      157      0
RS:      0      1780222
RSCorr:      0      0
RSUnCorr:   0      0

         Bearer 0
HEC:      454      0
OCD:      20      0
LCD:      20      0
Total Cells:   265208358      0
Data Cells:   9199996      0
Drop Cells:   0
Bit Errors:   0      0

ES:      58      0
SES:      11      0
UAS:      58      48
AS:      3454

         Bearer 0
INP:      0.00      0.00
INPRein:   0.00      0.00
delay:      0      0
PER:      3.06      12.76
OR:      62.55      20.05
AgR:      40035.61   8088.77

Bitswap:   2645/2645      0/0

Total time = 14 hours 25 min 54 sec
FEC:      0      0
CRC:      157      0
ES:      58      0
SES:      11      0
UAS:      58      48
LOS:      1      0
LOF:      9      0
LOM:      0      0
Latest 15 minutes time = 10 min 54 sec
FEC:      0      0
CRC:      22      0
ES:      13      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:      7      0
ES:      6      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Latest 1 day time = 14 hours 25 min 54 sec
FEC:      0      0
CRC:      157      0
ES:      58      0
SES:      11      0
UAS:      58      48
LOS:      1      0
LOF:      9      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 = 57 min 33 sec
FEC:      0      0
CRC:      157      0
ES:      32      0
SES:      1      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
#

[adslmax]

I still waiting for DLM to change my line interleave depth from 16:8 to 16:1 as I notice many used to be on 16:8 and now on 16:1 but mine still on 16:8 for 25 days!

[michty_me]

Is that due to the G.inp adjustments that users have been put on 16:1? Maybe it hasnt rolled out to you yet? Last time I checked I was still on 16:8. It doesn't make any difference anyway after seeing stats from another user.

[N0STIE]

Anyone can confirm what my stats are like? May DLM do something with my line? Average ES/h about 20 while daylight and 35-40 in the evenings.

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   1
Last initialization procedure status:   0
Max:   Upstream rate = 8223 Kbps, Downstream rate = 47220 Kbps
Bearer:   0, Upstream rate = 8069 Kbps, Downstream rate = 39973 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):    9.8       6.0
Attn(dB):    22.3       0.0
Pwr(dBm):    12.6       5.8
         VDSL2 framing
         Bearer 0
MSGc:      18      26
B:      239      238
M:      1      1
T:      64      27
R:      0      16
S:      0.1911      0.9418
L:      10048      2166
D:      1      1
I:      240      255
N:      240      255
         Counters
         Bearer 0
OHF:      77582679      255704
OHFErr:      4251      5
RS:      0      2026189
RSCorr:      0      75
RSUnCorr:   0      0

         Bearer 0
HEC:      9628      0
OCD:      495      0
LCD:      495      0
Total Cells:   1110293821      0
Data Cells:   241347497      0
Drop Cells:   0
Bit Errors:   0      0

ES:      1574      5
SES:      19      0
UAS:      58      48
AS:      238132

         Bearer 0
INP:      0.00      0.00
INPRein:   0.00      0.00
delay:      0      0
PER:      3.06      12.76
OR:      62.55      20.05
AgR:      40035.61   8088.77

Bitswap:   132878/132884      13/13

Total time = 1 days 7 hours 37 min 12 sec
FEC:      0      75
CRC:      4251      5
ES:      1574      5
SES:      19      0
UAS:      58      48
LOS:      1      0
LOF:      9      0
LOM:      0      0
Latest 15 minutes time = 7 min 12 sec
FEC:      0      0
CRC:      2      0
ES:      2      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:      4      0
ES:      4      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Latest 1 day time = 7 hours 37 min 12 sec
FEC:      0      6
CRC:      299      1
ES:      133      1
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Previous 1 day time = 24 hours 0 sec
FEC:      0      24
CRC:      1465      2
ES:      596      2
SES:      3      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Since Link time = 2 days 18 hours 8 min 51 sec
FEC:      0      75
CRC:      4251      5
ES:      1548      5
SES:      9      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
#

[Dray]

You appear to be on fastpath, I don't think there's anything more for DLM to give?

Have you disabled QOS on the HG612? It's in Advanced on the webgui. That should maximise your upstream.

[N0STIE]

Just disabled it now, havent noticed any change in upstream level. Whats retrain reason: 1? I am afraid that my line may be unable to handle fastpath and move me back to interleaving. Are my errors normal or too high?