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[spring]

@spring do you find that you get changes of sync speed between resynchs when you haven’t changed anything? This used to happen for me, but nowadays such changes are really small.

Never had any change in sync speeds, and for DLM to kick in from resyncs it might be 15-20 times or more. Or maybe it only cares about the conditions while running and not syncs/desyncs [maybe failure of syncing though], so could it do unlimited resyncs per day? good chance for that, but seems for others here that can resync 1-5 times per day making it 10 would be sufficient improvement.

I tried Chrome but that was just the same, as I expected. Another Kitizen claimed that my opinion was out of date - I had read that all iOS web browsers are based on Webkit code or bits of core code used by Safari or whatever - and claimed that this was no longer the case. But I just don’t know the truth of it. It actually is perhaps not so simple. Regardless of the browser’s code, it could be that there is either capability detection or browser sniffing code in the javascript and maybe it detects one or the other browser but classes them all as one and the same ‘mobile’ nonsense thing and then this triggers broken behaviour.

The issue is one where eg the DSL statistics page is unreadable because part of it goes off the bottom of the screen. Unfortunately I can’t fix by turning Javascript off, not even turning it off selectively + temporarily, as the page in question is then not drawn at all.

sounds like mobile things, you can try firefox in the store https://itunes.apple.com/app/apple-store/id989804926 and if not then you know you need a laptop. Or theres a way to work around it with browser addons or settings, for customization Firefox is better than Chrome.

[johnson]

See other thread. Sorry for OT! 

[spring]

firmware with newer dsl driver seems fine so except the possible kernel incompatibility that I haven't yet encountered, it should be more stable/faster for "everyone" (" ")

Code: [Select]

adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 35190 Kbps, Downstream rate = 109337 Kbps
Bearer: 0, Upstream rate = 3455 Kbps, Downstream rate = 44880 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):        25.1            19.6
Attn(dB):        10.7            0.0
Pwr(dBm):       -14.9           -15.1

                        VDSL2 framing
                        Bearer 0
MSGc:           -6              432
B:              235             17
M:              1               1
T:              0               1
R:              14              16
S:              0.0000          0.1569
L:              11951           1734
D:              1               55
I:              250             34
N:              250             34
Q:              8               0
V:              1               0
RxQueue:                34              0
TxQueue:                17              0
G.INP Framing:          18              0
G.INP lookback:         17              0
RRC bits:               0               24
                        Bearer 1
MSGc:           90              -6
B:              0               0
M:              2               0
T:              2               0
R:              16              0
S:              10.6667         0.0000
L:              24              0
D:              1               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               164638
OHFErr:         0               0
RS:             1357205088              2248649
RSCorr:         410             1639
RSUnCorr:       0               0
                        Bearer 1
OHF:            59702287                0
OHFErr:         0               0
RS:             358213354               0
RSCorr:         0               0
RSUnCorr:       0               0

                        Retransmit Counters
rtx_tx:         713203          0
rtx_c:          143             0
rtx_uc:         0               0

                        G.INP Counters
LEFTRS:         0               0
minEFTR:        44859           0
errFreeBits:    656161700               0

                        Bearer 0
HEC:            0               0
OCD:            0               0
LCD:            0               0
Total Cells:    1161853343              0
Data Cells:     515193186               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               0
SES:            0               0
UAS:            26              26
AS:             959130

                        Bearer 0
INP:            44.00           2.00
INPRein:        0.00            0.00
delay:          0               2
PER:            0.00            17.24
OR:             0.01            203.20
AgR:            44951.38        3657.71

                        Bearer 1
INP:            2.50            0.00
INPRein:        2.50            0.00
delay:          0               0
PER:            16.06           0.01
OR:             47.81           0.01
AgR:            47.81   0.01

Bitswap:        126/126         0/0

Total time = 11 days 2 hours 25 min 56 sec
FEC:            410             1639
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            26              26
LOS:            0               0
LOF:            0               0
LOM:            0               0
Latest 15 minutes time = 10 min 56 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:            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 = 2 hours 25 min 56 sec
FEC:            14              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 = 24 hours 0 sec
FEC:            30              29
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
Since Link time = 11 days 2 hours 25 min 29 sec
FEC:            410             1639
CRC:            0               0
ES:             0               0
SES:            0               0
UAS:            0               0
LOS:            0               0
LOF:            0               0
LOM:            0               0
NTR: mipsCntAtNtr=0 ncoCntAtNtr=0
 >


adsl info --pbParams
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 35190 Kbps, Downstream rate = 109337 Kbps
Bearer: 0, Upstream rate = 3455 Kbps, Downstream rate = 44880 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Discovery Phase (Initial) Band Plan
US: (6,31) (882,1193) (1984,2770)
DS: (33,857) (1218,1959) (2795,4083)
Medley Phase (Final) Band Plan
US: (6,31) (882,1193) (1984,2770)
DS: (41,857) (1218,1959) (2795,4083)
                  VDSL Port Details               Upstream                Downstream
Attainable Net Data Rate:           35190 kbps             109337 kbps
Actual Aggregate Tx Power:         -  15.1 dBm            -  14.9 dBm
====================================================================================
  VDSL Band Status U0 U1 U2 U3 U4 D1 D2 D3
  Line Attenuation(dB): 0.1 10.1 15.1 N/A N/A 6.3 12.7 20.6
Signal Attenuation(dB): 0.1 10.0 14.9 N/A N/A 6.3 12.6 20.6
        SNR Margin(dB): 24.4 20.1 19.3 N/A N/A 25.1 25.1 25.1
         TX Power(dBm): -17.7 -19.1 -27.8 N/A N/A 12.3 8.1 6.8
 >


Stats recorded 14 Jun 2018 17:24:28

DSLAM type / SW version: IFTN:0xb206 (178.6) / v0xb206
Modem/router firmware:  AnnexA version - A2pv6F039x1.d26a
DSL mode:                VDSL2 Profile 17a
Status:                  Showtime
Uptime:                  11 days 2 hours 25 min 30 sec
Resyncs:                0 (since 14 Jun 2018 17:19:22)

Downstream Upstream
Line attenuation (dB):  10.7 0.0
Signal attenuation (dB): Not available on VDSL2
Connection speed (kbps): 44880 3455
SNR margin (dB):        25.1 19.6
Power (dBm):            -14.9 -15.1
Interleave depth:        1 55
INP:                    44.00 2.00
G.INP:                  Enabled Not enabled
Vectoring status:        5 (VECT_UNCONFIGURED)

RSCorr/RS (%):          0.0000 0.0729
RSUnCorr/RS (%):        0.0000 0.0000
ES/hour:                0 0

[j0hn]

firmware with newer dsl driver seems fine so except the possible kernel incompatibility that I haven't yet encountered, it should be more stable/faster for "everyone" (" ")

Slightly lower downstream sync on my line.
I'm sure Weaver had the same results.

I've reverted back to the adsl_phy.bin that came with the 1312-b10a firmware.
I'm happy enough with 1508 MTU and multiple telnet sessions.

I'm not touching the modem at the moment as I have a new crosstalker that knocked nearly 5Mb off my downstream attainable and 0.5Mb off the upstream.
I'll try keep the line synced as long as possible.
Running at 1dB SNR on the downstream, the target is 3dB.

Code: [Select]

adsl info --stats
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 7613 Kbps, Downstream rate = 46022 Kbps
Bearer: 0, Upstream rate = 8070 Kbps, Downstream rate = 51405 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):        1.0             4.0
Attn(dB):        24.5            0.0
Pwr(dBm):        13.3            3.1
 >

[Weaver]

I missed something - why did you go back to the earlier version of the low-level driver?

[johnson]

Slightly lower downstream sync on my line.
I'm sure Weaver had the same results.

I agree, slightly lower downstream for me too, but since it fixes my crazy vectoring related half speed after a none reboot resync, I'm sticking with it for now.

It may just be the slightly lower sync, but I have experienced a good deal less errors with it than the much older adsl_phy I was using previously.

I'l maintain that if you dont experience any obvious benefit its probably best to stick with the one normally included.

[Weaver]

Ah - maybe that explains where some of my speed went then? That would clear up a big mystery - see t’other thread. Any idea how big the effect might be?

[johnson]

Its possible Weaver, but from earlier in the thread you noted only a 25kbps drop:

No speed improvement with G.992.3 and my very long line, in fact downstream sync is 25kbps slower and upstream is 3kbps slower. I did a second resync, speeds were unchanged. A 1% downstream change like this hardly means much of course.

[Weaver]

Apologies, I didn't notice the word ‘upstream’. I was lamenting over my loss of downstream speed after switching to the ZyXELs, so disregard my earlier comment.

As for upstream, I have not noted any further loss of upstream speed during my time with the ZyXELs, but the upstream speed of the ZyXEL modems is worse than that of my earlier DLinks.

[j0hn]

I missed something - why did you go back to the earlier version of the low-level driver?

It performed better.
It's the adsl_phy.bin that matches the accompanying kernel driver.

It's a fairly common thing that users will swap the dsl driver on Broadcom modems.
Unless you see a noticeable benefit or it fixes a specific issue (like Johnson's Vectoring issue) then I wouldn't recommend changing the dsl driver.

[Weaver]

j0hn, was it faster? Noticeably so? Is that downstream or both ? Sorry to be so full of questions but that might explain one or two mysteries.

[johnson]

Doesnt help much but I can easily make firmwares with any of the available adsl_phys. I believe there are 4-5 around that should work with these modems.

Was even thinking about a nice way to change between them in one firmware, using a slightly modified adsldd.ko module and storing the adsl_phys in ram after boot... but I guess it would be something very few people would use.

[Weaver]

What differences might I see if I go back to the earlier release, with only the jumbo 1508 mod ?

[johnson]

What differences might I see if I go back to the earlier release, with only the jumbo 1508 mod ?

I know you want an answer from j0hn, but if I may - very little. I think comparing performance on your ADSL line to VDSL is pretty apples to oranges, its easy to get half to whole mbit differences between syncs with nothing changed on our noisy VDSL lines, so while I have experienced maybe 500kbps lower with the x1 adsl_phy I'm not sure what that would translate to on your line.

If you want to go fishing with the various different BLOBs (heh, thats fun to type) then by all means, the most I have ever had my VMG1312 sync at was with the version 7 firmware from 2015, it was really unstable on my line and caused DLM intervention after going on a resync spree 3 nights in a row. Maybe that wouldnt happen on your ADSL line, I'm happy to make a firmware with it in if you'd like to try.

But if you are up for tweaking then dropping your SNRM by 1db would probably provide much more pleasing results. I mean look at j0hn's connection, 3db target but down to 1db and going strong. With the ability you have to control this being on ADSL it would be the first place I went if I was trying to eek out more speed... 

[spring]

I would like to try those firmwares johnson. Some poeple don't benefit the tendency for less errors like j0hn & get lower speed & already are at their lowest target db [1db in this case], but to me it seems like most people do benefit less errors & half didn't get a significant speed drop.

Because of the kernel incompatibility that j0hn emphasied, it's definitely worth trying to make a firmware with the last DSL driver compatible with d26a.

What differences might I see if I go back to the earlier release, with only the jumbo 1508 mod ?

You've been on it...