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Cheers Chris
Do you have the option to turn interleaving off?
Or even better, get my line moved to the cabinet next to my house  ha
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I have plenty of spare margin on mine too. Just a pity that downstream is only 63Mbps
Judging by attenuation, your line is way better (or shorter, at least). In fact, those attenuation figures are almost identical to ours - where we have an 80/20 line (though today is the first time ever that the "attainable" has dropped below 81Mbps):
| Text | 1
23
45
67
89
1011
1213
1415
1617
1819
| Max: Upstream rate = 25950 Kbps, Downstream rate = 79644 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps
Discovery Phase (Initial) Band PlanUS: (0,95) (868,1207) (1972,2783)
DS: (32,859) (1216,1963) (2792,3959)Medley Phase (Final) Band Plan
US: (0,95) (868,1207) (1972,2783)DS: (32,859) (1216,1963) (2792,3959)
VDSL Port Details Upstream DownstreamAttainable Net Data Rate: 25950 kbps 79644 kbps
Actual Aggregate Tx Power: 6.8 dBm 13.1 dBm============================================================================
VDSL Band Status U0 U1 U2 U3 D1 D2 D3 Line Attenuation(dB): 4.3 21.8 32.6 N/A 11.4 27.5 41.9
Signal Attenuation(dB): 4.3 20.8 31.6 N/A 11.4 27.5 41.9 SNR Margin(dB): 15.3 15.2 15.2 N/A 5.8 5.8 5.8
TX Power(dBm): -4.2 -21.5 6.4 N/A 9.7 7.8 6.9# |
Given that the normal case is for the SNR Margin to be 6dB, as Bob's is, yours is looking very high, given that you aren't bouncing off the speed ceiling.
Perhaps you've been banded? Or perhaps Openreach have started setting profiles with higher target SNRM values?
If it were the latter, it'd be the first time I've seen it on FTTC. Do you have anything that has been monitoring the 3 SNRM values over the course of a day, or longer?
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I should get the tools installed to monitor it and see how it performs over the day. At present I cannot as I am using two PCs which I have agreed not to install anything on - my PCs have a McAfee AV problem which I am waiting for them to resolve and as such those are not going on line at all.
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M H C
taurus excreta cerebrum vincit
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Do you have the option to turn interleaving off?
No - ISP's don't have that facility.
It only seems to be possible to get a line set back to the "initial" state (without interleaving), and that happens only when requested by an Openreach engineer visiting to fix a fault - and it doesn't always happen then - sometimes they forget, and sometimes their central department refuse to do the reset.
The line will then act like a new install - so if there have been no changes to the quality of the line, DLM is almost certainly going to intervene again within the first 48 hours.
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As WWWombat says, we do not have the facility to be able to turn on/off interleaving, this will be done automatically. Only an engineer can reset the line when needed.
Let me know how you go.
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Right.
Ive done as suggested
# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 12153 Kbps, Downstream rate = 63900 Kbps
Path: 0, Upstream rate = 12436 Kbps, Downstream rate = 54369 Kbps
Discovery Phase (Initial) Band Plan
US: (0,95) (868,1207) (1972,2783)
DS: (32,859) (1216,1963) (2792,3959)
Medley Phase (Final) Band Plan
US: (0,95) (868,1207) (1972,2783)
DS: (32,859) (1216,1963) (2792,3959)
VDSL Port Details Upstream Downstream
Attainable Net Data Rate: 12153 kbps 63900 kbps
Actual Aggregate Tx Power: 6.4 dBm 12.6 dBm
# xdslcmd info --show
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 12168 Kbps, Downstream rate = 63700 Kbps
Path: 0, Upstream rate = 12436 Kbps, Downstream rate = 54369 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 5.9
Attn(dB): 0.0 0.0
Pwr(dBm): 12.6 6.4
VDSL2 framing
Path 0
B: 63 237
M: 1 1
T: 64 50
R: 16 16
S: 0.0375 0.6084
L: 17086 3340
D: 861 1
I: 80 127
N: 80 254
Counters
Path 0
OHF: 43359321 1467639
OHFErr: 183 60
RS: 4030021992 3414415
RSCorr: 1510434 1617
RSUnCorr: 4669 0
Path 0
HEC: 1098 0
OCD: 0 0
LCD: 0 0
Total Cells: 3883154311 0
Data Cells: 7639112 0
Drop Cells: 0
Bit Errors: 0 0
ES: 52 57
SES: 0 0
UAS: 18 18
AS: 78265
Path 0
INP: 3.00 0.00
PER: 1.79 7.60
delay: 8.00 0.00
OR: 93.43 33.66
Bitswap: 26847 3000
Total time = 21 hours 46 min 13 sec
FEC: 1511112 1617
CRC: 183 60
ES: 52 57
SES: 0 0
UAS: 18 18
LOS: 0 0
LOF: 0 0
Latest 15 minutes time = 1 min 13 sec
FEC: 409 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: 23370 2
CRC: 2 0
ES: 1 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Latest 1 day time = 21 hours 46 min 13 sec
FEC: 1511112 1617
CRC: 183 60
ES: 52 57
SES: 0 0
UAS: 18 18
LOS: 0 0
LOF: 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
Since Link time = 21 hours 45 min 55 sec
FEC: 1511112 1617
CRC: 183 60
ES: 52 57
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Im guessing:
Trellis: U:ON /D:ON = interleaving?
and the amount of errors means i have interleaving on?
Is that a lot of errors?
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Trellis - I'm not sure what that does, but it's always on on any broadband stats I've seen, including ADSL/ADSL2/ADSL2+.
Interleaving is this line:- "D: 861 1". "1" is Fast Path, anything else is interleaving depth. So you are interleaved down, fast path up. Hard to interpret the 861. On ADSLx that number is the number of ATM cells a TCP/IP packet is split across. On VDSL2 we have superframes and I run out of tech knowledge.
Error figures on the HG612 seem to be very odd for everyone.
My broadband basic info/help site - www.robertos.me.uk | Domains,website and mail hosting - Tsohost.
Connection - Plusnet Extra Fibre (FTTC). Sync ~ 53.5/15.2Mbps @ 600m. - BQM
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
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Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.
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Brilliant
so how can i improve it?
Its showing my attainable speed as something i should be able to get to.
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Its showing my attainable speed as something i should be able to get to. Unfortunately, it isn't.
My broadband basic info/help site - www.robertos.me.uk | Domains,website and mail hosting - Tsohost.
Connection - Plusnet Extra Fibre (FTTC). Sync ~ 53.5/15.2Mbps @ 600m. - BQM
"Where talent is a dwarf, self-esteem is a giant." - Jean-Antoine Petit-Senn.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Allergy information: This post was manufactured in an environment where nuts are present. It may include traces of understatement, litotes and humour.
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