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[Weaver]

Now, for some reason, the upstream speed of line 1 is ridiculously high, an upstream speed never ever approached by any modem of 775 kbps. The fastest ever speeds previously seen were something like ~29% to ~36% slower. How is that possible?

The only thing of note: modem 3 is powered down.

Code: [Select]

xdslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 8000
Last initialization procedure status: 0
Max: Upstream rate = 775 Kbps, Downstream rate = 2492 Kbps
Bearer: 0, Upstream rate = 775 Kbps, Downstream rate = 2451 Kbps

Link Power State: L0
Mode: ADSL2 Annex A
TPS-TC: ATM Mode(0x0)
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 6.1 6.0
Attn(dB): 64.0 40.0
Pwr(dBm): 17.7 12.4

ADSL2 framing
Bearer 0
MSGc: 59 11
B: 76 23
M: 1 1
T: 1 4
R: 0 0
S: 0.9919 0.9796
L: 621 196
D: 1 1

Counters
Bearer 0
SF: 100181 96991
SFErr: 3 51
RS: 0 2299608
RSCorr: 0 0
RSUnCorr: 0 0

Bearer 0
HEC: 4 32
OCD: 0 0
LCD: 0 0
Total Cells: 9337685 2949691
Data Cells: 195491 180991
Drop Cells: 0
Bit Errors: 186 3413

ES: 494 768
SES: 148 18
UAS: 10221 10073
AS: 1616

Bearer 0
INP: 0.00 0.00
INPRein: 0.00 0.00
delay: 0 0
PER: 16.11 16.65
OR: 32.25 8.16
AgR: 2474.33 780.94

Bitswap: 34/35 3/3

Total time = 12 days 13 hours 11 min 53 sec
FEC: 1703 75839
CRC: 3421 918
ES: 494 768
SES: 148 18
UAS: 10221 10073
LOS: 41 0
LOF: 106 0
LOM: 4 0
Latest 15 minutes time = 11 min 53 sec
FEC: 0 0
CRC: 0 21
ES: 0 15
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: 3 30
ES: 3 15
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 13 hours 11 min 53 sec
FEC: 0 0
CRC: 47 293
ES: 46 164
SES: 0 0
UAS: 53 53
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 0 0
CRC: 137 230
ES: 122 156
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Since Link time = 26 min 55 sec
FEC: 0 0
CRC: 3 51
ES: 3 30
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
NTR: mipsCntAtNtr=0 ncoCntAtNtr=0

[ejs]

I've noticed that there is no error protection of any kind, neither retransmission nor FEC/interleaving, on this line.

[Weaver]

@EJS where should I be looking, my friend?

[ejs]

If you mean which parts of the stats I determined that from, then it's that the INP values are zero, and the retransmission counters have disappeared from the stats.

[burakkucat]

The circuit is running "fastpath".

[Weaver]

That’s good to know. I can’t see this reflected in the controls in clueless, I’ll look again.



and the same is seen on the upstream interleave control. I then set both to interleave=off, then "apply" and then back to interleave=on then "apply" again.

[Weaver]

Even after supposedly resetting the controls, the detailed stats look the same regarding INP-settings. This is modem 1 again

Code: [Select]

xdslctl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 8000
Last initialization procedure status: 0
Max: Upstream rate = 775 Kbps, Downstream rate = 2788 Kbps
Bearer: 0, Upstream rate = 775 Kbps, Downstream rate = 2779 Kbps

Link Power State: L0
Mode: ADSL2 Annex A
TPS-TC: ATM Mode(0x0)
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 2.9 5.8
Attn(dB): 64.0 40.1
Pwr(dBm): 18.1 12.4

ADSL2 framing
Bearer 0
MSGc: 59 11
B: 86 23
M: 1 1
T: 1 4
R: 0 0
S: 0.9900 0.9796
L: 703 196
D: 1 1

Counters
Bearer 0
SF: 5974759 735808
SFErr: 232 496
RS: 0 1693578
RSCorr: 0 0
RSUnCorr: 0 0

Bearer 0
HEC: 377 287
OCD: 1 0
LCD: 1 0
Total Cells: 630167544 175880222
Data Cells: 10573866 4232689
Drop Cells: 0
Bit Errors: 16117 27615

ES: 837 1574
SES: 159 18
UAS: 10279 10121
AS: 96140

Bearer 0
INP: 0.00 0.00
INPRein: 0.00 0.00
delay: 0 0
PER: 16.08 16.65
OR: 32.32 8.16
AgR: 2801.05 780.94

Bitswap: 14790/14794 51/51

Total time = 14 days 10 hours 35 min 18 sec
FEC: 1703 75839
CRC: 4276 2139
ES: 837 1574
SES: 159 18
UAS: 10279 10121
LOS: 42 0
LOF: 114 0
LOM: 4 0
Latest 15 minutes time = 5 min 18 sec
FEC: 0 0
CRC: 1 1
ES: 1 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: 0 0
CRC: 3 2
ES: 3 2
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 10 hours 35 min 18 sec
FEC: 0 0
CRC: 64 87
ES: 60 75
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 0
CRC: 616 692
ES: 167 452
SES: 10 0
UAS: 58 48
LOS: 1 0
LOF: 8 0
LOM: 0 0
Since Link time = 1 days 2 hours 42 min 19 sec
FEC: 0 0
CRC: 232 496
ES: 209 349
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
NTR: mipsCntAtNtr=0 ncoCntAtNtr=0


[Weaver]

I asked AA for some help setting it back to interleaved and they did so, interestingly the upstream sync rate dropped from 775k all the way down to 666kbps but that’s still a good bit higher than normal (at 500-600k u/s). Wonder why fastpath is associated with faster upstream sync?

[GigabitEthernet]

Another new thread?

[burakkucat]

Another new thread?

 

[Weaver]

Indeed a good idea

[Chrysalis]

Interesting you can fine tune your line like that on BTw based ADSL, when did that become a thing?  Usually BT insist DLM has full control.

[Weaver]

I can see a load of cap values for upstream in AA’s clueless server.