Line stats

tipsy

tipsy

tipsy

Associate
Joined
23 Feb 2004
Posts
1,393
Location
Greenside/Tyne & wear
Hello there

Please can U suggest wether I should stay with adsl 24 & test my line with their maxdsl first before leaving for another go at 02. Here are my last 12hr line stats.

Voyager 2091 stats

Line Mode G.DMT Line State Show Time
Latency Type Fast Line Up Time 00:12:54:49
Line Coding Trellis On Line Up Count 1

Statistics Downstream Upstream
Line Rate 2272 Kbps 288 Kbps
Noise Margin 29.2 dB 25.0 dB
Line Attenuation 30.0 dB 14.5 dB
Output Power 19.6 dBm 10.9 dBm
K (number of bytes in DMT frame) 72 10
R (number of check bytes in RS code word) 0 0
S (RS code word size in DMT frame) 1 1
D (interleaver depth) 1 1
Super Frames 2734680 2734678
Super Frame Errors 1 0
RS Words 0 0
RS Correctable Errors 0 0
RS Uncorrectable Errors 0 0
HEC Errors 0 0
OCD Errors 0 0
LCD Errors 0 0
ES Errors 0 0


Netgear 834GT telenet stats



BusyBox v1.00 (2007.11.05-06:13+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

# adslctl info --stats
adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 0
Channel: FAST, Upstream rate = 288 Kbps, Downstream rate = 2272 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Fast
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 29.6 25.0
Attn(dB): 29.0 15.0
Pwr(dBm): 19.6 11.1
Max(Kbps): 9728 1096
Rate (Kbps): 2272 288
G.dmt framing
K: 72(0) 10
R: 0 0
S: 1 1
D: 1 1
ADSL2 framing
MSGc: 1 1
B: 72 10
M: 1 1
T: 1 1
R: 0 0
S: 1.0000 1.0000
L: 584 88
D: 1 1
Counters
SF: 53512 53452
SFErr: 0 0
RS: 0 0
RSCorr: 0 0
RSUnCorr: 0 0

HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 4874818 0
Data Cells: 22721 0
Drop Cells: 0
Bit Errors: 0 0

ES: 0 0
SES: 0 0
UAS: 14 0
AS: 910

INP: 0.00 0.00
PER: 1.75 1.75
delay: 0.25 0.25
OR: 32.00 32.00

Bitswap: 0 0

Total time = 15 min 32 sec
SF = 53512
CRC = 0
LOS = 0
LOF = 0
ES = 0
Latest 1 day time = 15 min 32 sec
SF = 53512
CRC = 0
LOS = 0
LOF = 0
ES = 0
Latest 15 minutes time = 32 sec
SF = 1888
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 15 min 0 sec
SF = 51624
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 1 day time = 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 0
Showtime Drop Reason: 0
Last Retrain Reason: 0
#
#

Thanx for the help
 
Last edited:
(In here before Tolien...)

Well looking at your stats your line is just over a mile long and you should get 16Mb, probably slighter better on ADSL2+.

Your signal to noise is very good but the attenuation isn't so, are you connected to the master/test socket or you running your ADSL via an extension socket/lead?

Get yourself over to BE/O2 sharpish anyway :D
 
You have no control over the attenuaton - that's dictated by line length, quality, etc. The only thing your internal house wiring can affect is the SNR and in this case it's pretty high on fixed-rate 2mbit. You'd almost definitely hit the full 8mbit on ADSL, but you'd also almost certainly get a fair whack more with an ADSL2+ provider so go for Be/O2.
 
Phemo said:
You have no control over the attenuaton - that's dictated by line length, quality, etc.
Click to expand...

I'd have thought bad extensions leads/sockets would add more attenuation/resistance to the line that would affect both the SNR and attenuation. Seen it with my own eyes plenty of times after working for a large ISP.
 
Not saying you're wrong as I guess you have more experience, but I've never seen it myself. 30db attenuation isn't too bad anyway, should still be good for some decent speeds, just suggests a line not too close to the exchange.
 
just to add I was on o2 last month but they were unwilling to get an sfi engineer to check my faults so went back ot adsl24, anyway I'm in the master socket & my snr has stayed this high since the engineer swapped me to another pot on the aswell as fixing a crossover. my line appears stable now but I just fear if it happens again with the unstable lag & crc, fec errors appear again I will be stuck. To add some oddness to this though my line was

2272 288
line attenuation 23

snr 20

so some improvement on the snr but with the line swap a higher attenuation
 
Yeah he must've put you on a different pair in the cab which has a longer route/more interference on its path back to the exchange. Not a lot you can do about that really.
 
It sounds very much like the copper pair has been changed (to fix the crossed line issue), resulting in one that routes with a longer line length - possible reason for the attenuation increase anyway.

As Phemo states, your stats are good anyway 30dB isn't bad. If it makes you feel better I have a 45dB attenuation, line length approximately 3.3km and max sync rate Ive had was 9.2Mb Down, 1.2Mb Up which im happy with - this is with BE too (BE Value due to line length).
 
There's a guesstimator in the sticky - I'm not The Oracle :p

Changes in attenuation as a result of fiddling with internal wiring are mostly a result of bitswapping (unless you have an extremely short loop length or a few kilometres of extension wiring). Modem decides to use more low-frequency bins, average attenuation drops.
 
current line stats after 24hrs :(

These are my stats on a 2mb fixed line, do U think this will get worse on adsl2+



BusyBox v1.00 (2007.11.05-06:13+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

# adslctl info --stats
adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 1
Channel: FAST, Upstream rate = 288 Kbps, Downstream rate = 2272 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Fast
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 29.4 27.0
Attn(dB): 28.0 15.0
Pwr(dBm): 19.6 10.9
Max(Kbps): 9824 1120
Rate (Kbps): 2272 288
G.dmt framing
K: 72(0) 10
R: 0 0
S: 1 1
D: 1 1
ADSL2 framing
MSGc: 1 1
B: 72 10
M: 1 1
T: 1 1
R: 0 0
S: 1.0000 1.0000
L: 584 88
D: 1 1
Counters
SF: 79649 79649
SFErr: 0 0
RS: 0 0
RSCorr: 0 0
RSUnCorr: 0 0

HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 7255750 0
Data Cells: 9286 0
Drop Cells: 0
Bit Errors: 0 0

ES: 18 0
SES: 14 0
UAS: 524 0
AS: 1354

INP: 0.00 0.00
PER: 1.75 1.75
delay: 0.25 0.25
OR: 32.00 32.00

Bitswap: 0 0

Total time = 22 hours 19 min 51 sec
SF = 4666479
CRC = 3113
LOS = 14
LOF = 126
ES = 18
Latest 1 day time = 22 hours 19 min 51 sec
SF = 4666479
CRC = 3113
LOS = 14
LOF = 126
ES = 18
Latest 15 minutes time = 4 min 51 sec
SF = 17110
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 15 min 0 sec
SF = 52982
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 1 day time = 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
SF = 44308
CRC = 468
LOS = 2
LOF = 18
ES = 2
15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
SF = 44190
CRC = 449
LOS = 2
LOF = 18
ES = 2
15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
SF = 52982
CRC = 0
LOS = 0
LOF = 0
ES = 0
Showtime Drop Reason: 1
Last Retrain Reason: 1
#
#
 
Worse? No, they're good stats. 28dB attenuation with 29.4dB SNR. You'd definitely get a pretty substantial increase with ADSL2+.

Every line is different, but my line with 27dB attenuation syncs at around 18000kbps.
 
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 7255750 0
Data Cells: 9286 0
Drop Cells: 0
Bit Errors: 0 0

ES: 18 0
SES: 14 0
UAS: 524 0
AS: 1354

INP: 0.00 0.00
PER: 1.75 1.75
delay: 0.25 0.25
OR: 32.00 32.00

Bitswap: 0 0

Total time = 22 hours 19 min 51 sec
SF = 4666479
CRC = 3113
LOS = 14
LOF = 126
ES = 18
Latest 1 day time = 22 hours 19 min 51 sec
SF = 4666479
CRC = 3113
LOS = 14
LOF = 126
ES = 18
Latest 15 minutes time = 4 min 51 sec
SF = 17110
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 15 min 0 sec
SF = 52982
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 1 day time = 0 sec
SF = 0
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
SF = 44308
CRC = 468
LOS = 2
LOF = 18
ES = 2
15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
SF = 44190
CRC = 449
LOS = 2
LOF = 18
ES = 2
15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
SF = 52982
CRC = 0
LOS = 0
LOF = 0
ES = 0
Showtime Drop Reason: 1
Last Retrain Reason: 1
#
#[/QUOTE]


have U seen the ammount of crc errors? that what was worrying & the was a drop
 
new stats after 3 days, just see if its recomended with the crc errors to go back to adsl2+ 02/be (crc error state)



BusyBox v1.00 (2007.11.05-06:13+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

# adslctl info --stats
adslctl: ADSL driver and PHY status
Status: ShowtimeRetrain Reason: 1
Channel: FAST, Upstream rate = 288 Kbps, Downstream rate = 2272 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Fast
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 29.8 26.0
Attn(dB): 28.0 15.0
Pwr(dBm): 19.6 11.2
Max(Kbps): 9632 1108
Rate (Kbps): 2272 288
G.dmt framing
K: 72(0) 10
R: 0 0
S: 1 1
D: 1 1
ADSL2 framing
MSGc: 1 1
B: 72 10
M: 1 1
T: 1 1
R: 0 0
S: 1.0000 1.0000
L: 584 88
D: 1 1
Counters
SF: 2213502 2213474
SFErr: 1 0
RS: 0 0
RSCorr: 0 0
RSUnCorr: 0 0

HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 201637680 0
Data Cells: 308453 0
Drop Cells: 0
Bit Errors: 0 0

ES: 50 0
SES: 34 0
UAS: 1200 0
AS: 37630

INP: 0.00 0.00
PER: 1.75 1.75
delay: 0.25 0.25
OR: 32.00 32.00

Bitswap: 0 0

Total time = 1 days 8 hours 58 min 5 sec
SF = 11921404
CRC = 7219
LOS = 36
LOF = 297
ES = 50
Latest 1 day time = 8 hours 58 min 5 sec
SF = 1899092
CRC = 1
LOS = 0
LOF = 0
ES = 1
Latest 15 minutes time = 13 min 5 sec
SF = 46197
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 1 day time = 24 hours 0 sec
SF = 5002364
CRC = 4105
LOS = 22
LOF = 171
ES = 31
15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
SF = 52923
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
SF = 52982
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
SF = 52982
CRC = 0
LOS = 0
LOF = 0
ES = 0
Showtime Drop Reason: 1
Last Retrain Reason: 1
#
#
 
You must log in or register to reply here.
Back
Top Bottom