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[perry081064]

Hi guys, new to the forums so go gentle on me  .

over the last few months ( around the time I changed to a homehub 5 ) I noticed my download speed had dropped from my usual 60mbps to around 43 mbps.

im about 300 meters from my cab and had a brand new line from the pole on original install.

I managed to purchase a unlocked Hg612 from ebay , but im struggling to fully understand what the stats are telling me.
..could someone take a look over them for me and point out what I should be keeping an eye on or anything that stands out as a major problem.

many thanks in advance.

Code: [Select]

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 22119 Kbps, Downstream rate = 58020 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 50851 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): 6.0 6.4
Attn(dB): 0.0 0.0
Pwr(dBm): 13.0 6.4
VDSL2 framing
Path 0
B: 51 236
M: 1 1
T: 64 5
R: 12 16
S: 0.0325 0.3771
L: 15736 5410
D: 995 1
I: 64 255
N: 64 255
Counters
Path 0
OHF: 70599127 2183374
OHFErr: 36 283
RS: 893386049 2128527
RSCorr: 629493 4150
RSUnCorr: 823 0

Path 0
HEC: 163 0
OCD: 4 0
LCD: 4 0
Total Cells: 1545467255 0
Data Cells: 342528253 0
Drop Cells: 0
Bit Errors: 0 0

ES: 13 208
SES: 0 0
UAS: 18 18
AS: 147591

Path 0
INP: 3.00 0.00
PER: 2.08 6.12
delay: 8.00 0.00
OR: 92.20 203.67

Bitswap: 43168 8025

Total time = 1 days 17 hours 18 sec
FEC: 629493 4150
CRC: 36 283
ES: 13 208
SES: 0 0
UAS: 18 18
LOS: 0 0
LOF: 0 0
Latest 15 minutes time = 18 sec
FEC: 2 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: 973 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Latest 1 day time = 17 hours 18 sec
FEC: 355058 3070
CRC: 19 119
ES: 6 85
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Previous 1 day time = 24 hours 0 sec
FEC: 274435 1080
CRC: 17 164
ES: 7 123
SES: 0 0
UAS: 18 18
LOS: 0 0
LOF: 0 0
Since Link time = 1 days 16 hours 59 min 50 sec
FEC: 629493 4150
CRC: 36 283
ES: 13 208
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
#

Code: [Select]

xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Max: Upstream rate = 22195 Kbps, Downstream rate = 58488 Kbps
Path: 0, Upstream rate = 20000 Kbps, Downstream rate = 50851 Kbps

Discovery Phase (Initial) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
Medley Phase (Final) Band Plan
US: (0,95) (880,1195) (1984,2771)
DS: (32,859) (1216,1959) (2792,4083)
       VDSL Port Details       Upstream        Downstream
Attainable Net Data Rate:      22195 kbps         58488 kbps
Actual Aggregate Tx Power:        6.4 dBm          13.0 dBm
============================================================================
  VDSL Band Status U0 U1 U2 U3 D1 D2 D3
  Line Attenuation(dB): 1.0 24.3 38.1 N/A 12.8 31.9 50.7
Signal Attenuation(dB): 1.0 24.1 38.0 N/A 12.8 31.9 50.7
        SNR Margin(dB): 6.5 6.8 6.4 N/A 6.1 6.1 6.1
         TX Power(dBm): -5.1 -20.7 6.0 N/A 9.5 7.4 7.3
#

[HighBeta]

Hi & welcome

There are some very good people on here that will no doubt take a look. 

Also if you haven't already downloaded a stat program...

Either of these two  are excellent at monitoring the line and can help give a better ideal of whats going on over a longer period of time.

Bald Eagle's
http://www.kitz.co.uk/routers/hg612stats.htm

roseway's
http://www.s446074245.websitehome.co.uk/

[perry081064]

Thanks for the welcome HighBeta

yes, ive already downloaded and am using both of those stat programs thanks.

the trouble im having is knowing what im looking for and a trained eye that could assess the stats provided , once ive got a few pointers on what to really look for , im sure ill be fine.

[NewtronStar]

what I should be keeping an eye on or anything that stands out as a major problem.

Hi Perry081064 you will enjoy the Kitz forum

Well what I keep a close eye on in the stats is the SNRM as going below 6.0dB is not very welcome but going below 4.5dB is very bad, the next is the errors CRC and ES are a good guide if there is some kind of fault on the End User Line or an Internal issue with wiring.

Then comes the Tones and Bitloading and then Telnet data it's very complex to understand what your seeing on screen and convert it to how the line is performing it does take time and alot of help from BaldEagle1 

[perry081064]

Thanks for the info NewtronStar

i have some ES and CRC errors , im not too sure but they dont seem too high, but then again , im not sure what would be deemed as high anyway.

ive learned that my IMP of 3.00 and delay of 8.00 means ive been put on interleave (995) , so im learning something at least.
just need to find out whats caused it now 

[HighBeta]

Phone line sound ok on the quiet line test ?

[Dial 17070 and select option 2 - best on a corded phone]

[perry081064]

seems quiet , but its not corded so ill try and get one from town tomorrow.

managed to grab a screenshot of the QLN stats if thats any use ?

[NewtronStar]

Hello Perry081064 you need to know the QLN graph in the stats is not real time like CRC's errors and the SNRM.

The QLN Graph in the Stats is like a snapshot of your Line when the FTTC modem has been turned on it will not change again until you reboot the FTTC modem and I would avoid that for any testing purposes.

If you have noise creeping in and out during a 24 hour period then the best way to see this in the Graphs is to use SNR per tone this is real-time and will show massive large dips of SNR on your line if there is RFI and REIN noise.
   

[perry081064]

hey thanks for all the info NewtronStar , need all the help i can get 

... what im beginning to notice is my SNRM is actually starting to rise tonight .  i would normaly droop to around 5.8 around 9/10pm , however its gone up to 6.4.
....also ive noticed my attainable rate rise to 59424 so im hoping this is a good sign of my actual speed rising 
path downsteam doesnt want to move from 50851 though , making my actual download speed stay at around 47mbps .

could be worse though so i wont bitch about it.

thanks for all the info guys, im slowly making headway so keep it coming.

[custard]

That QLN graph shows some noise spikes around tone 3200 and 3600 which I don't see on my line. I wonder whats causing that. Not crosstalk that's for sure so maybe some RFI/EMI in the vicinity...

Hows your internal phone wiring and extensions?

[perry081064]

Hi Custard , and thanks for the input 

new phoneline installed from pole to house when i moved here last year, new faceplate fitted by openreach at the same time.
HG612 connected directly to that running to my Billion 7800.
no other extentions for phone or broadband.

theres a couple of street lights near the house, other than that , not much else.
...also, i am running a couple of powerline adaptors , one for the IPcam and one for my daughters computer in her room.
ive disconnected the IPcam adaptor for now, but until i can run some ethernet cable into my daughters room , that one will have to carry on running.
downstream SNRM has risen today to 6.6 and attainable speed has risen to 60360 , however removing one of the powerlines hasnt improved anything as yet, however ill keep a check on it.

excellent advice here, think ill be staying a while

[NewtronStar]

Good evening perry081064 I am sure quite a few members would love to see your Bitloading Graph, to me it seems you have a nice quiet line apart from the tones Custard has mentioned in the D3 band.

Regards NS

[perry081064]

Good evening perry081064 I am sure quite a few members would love to see your Bitloading Graph, to me it seems you have a nice quiet line apart from the tones Custard has mentioned in the D3 band.

Regards NS

as requested, im hoping this is the graph required.

really struggling to understand all these graphs , feeling a bit of a noob and out of my depth with it all, but ill persevere as i find it really interesting.

[NewtronStar]

It all look good to me, and I see you also have same SNRM dips on tones 1491 and 1665 to 1717 on the D2 Band plan as me and many others with FTTC across the UK there has to be some sort of explanation to this (is it RFI or is it just part of the normal MSAN noise) 

[burakkucat]

The bit loading looks good and as there is no deficit where the SNRM shows those downward spikes, I'll say that there is nothing to be concerned about.

Cross-referencing the dual-graph with that of the QLN, some posts above, reinforces that opinion.