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Line stats from HG612 Modem

darklight
Grafter
Posts: 142
Registered: 10-03-2013

Line stats from HG612 Modem

Not sure what i'm looking at here, i've taken copy of the stats can someone take a look see if anything as changed, i've just swapped over the rj11 to rj11 for a belkin 1.8m cable not sure if its made any difference.
These are my old stats
Stats recorded 10 Apr 2015 10:01:01
DSLAM/MSAN type:        BDCM:0xa44f / v0xa44f
Modem/router firmware:  AnnexA version - A2pv6C038m.d24j
DSL mode:              VDSL2 Profile 17a
Status:                Showtime
Uptime:                1 day 22 hours 47 min 3 sec
Resyncs:                0 (since 10 Apr 2015 10:00:2Cool

Downstream Upstream
Line attenuation (dB):  9.8 0.0
Signal attenuation (dB): Not monitored
Connection speed (kbps): 79999 20000
SNR margin (dB):        13.9 19.7
Power (dBm):            13.5 5.5
Interleave depth:      16 8
INP:                    46.00 47.00
G.INP:                  Enabled
RSCorr/RS (%):          0.0018 0.0202
RSUnCorr/RS (%):        0.0000 0.0000
ES/hour:                0 0

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 40924 Kbps, Downstream rate = 109184 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 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): 13.9 19.7
Attn(dB): 9.8 0.0
Pwr(dBm): 13.5 -5.5
VDSL2 framing
Bearer 0
Here are the stats from today
Stats recorded 17 Apr 2015 15:05:59
DSLAM/MSAN type:        BDCM:0xa44f / v0xa44f
Modem/router firmware:  AnnexA version - A2pv6C038m.d24j
DSL mode:              VDSL2 Profile 17a
Status:                Showtime
Uptime:                2 hours 38 min 55 sec
Resyncs:                0 (since 17 Apr 2015 14:57:25)

Downstream Upstream
Line attenuation (dB):  9.8 0.0
Signal attenuation (dB): Not monitored
Connection speed (kbps): 79999 20000
SNR margin (dB):        13.8 19.5
Power (dBm):            13.5 5.5
Interleave depth:      16 8
INP:                    46.00 47.00
G.INP:                  Enabled
RSCorr/RS (%):          0.0000 0.0014
RSUnCorr/RS (%):        0.0000 0.0000
ES/hour:                0 0

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 40676 Kbps, Downstream rate = 108500 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 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): 13.8 19.5
Attn(dB): 9.8 0.0
Pwr(dBm): 13.5 -5.5
VDSL2 framing
Bearer 0
Only thing i see is the SNR margin has dropped slightly, would that make any difference?
I would have thought my Interleave depth would have dropped, but it's still at 16.
9 REPLIES
Community Veteran
Posts: 6,313
Thanks: 86
Fixes: 3
Registered: 08-01-2008

Re: Line stats from HG612 Modem

Those are pretty healthy stats, you must be fairly close to the cabinet.
The small change might be due to syncing at a different time of day, even with a really good line like yours there will be some 'noise' at times seen by the modem.
Call me 'w23'
At any given moment in the universe many things happen. Coincidence is a matter of how close these events are in space, time and relationship.
Opinions expressed in forum posts are those of the poster, others may have different views.
darklight
Grafter
Posts: 142
Registered: 10-03-2013

Re: Line stats from HG612 Modem

What is the best time of day to sync (reboot) modem? to get best line stats.
jafreer
Aspiring Pro
Posts: 844
Thanks: 54
Registered: 13-10-2012

Re: Line stats from HG612 Modem

Many say around lunchtime is a good time (or at least during the daytime).
Your line stats look really good. You are right at the top end of sync speed so you are doing very well. You must be close to the cabinet. Look at your attainable speed (109 Mbits down and 40 Mbits up). Once the faster products are available, you will be able to make full use of them. Very lucky.
Krazeh
Grafter
Posts: 88
Registered: 06-02-2013

Re: Line stats from HG612 Modem

Quote from: darklight
What is the best time of day to sync (reboot) modem? to get best line stats.

Never. You're not going to get anything better than your current stats on the currently available fibre products.
jafreer
Aspiring Pro
Posts: 844
Thanks: 54
Registered: 13-10-2012

Re: Line stats from HG612 Modem

The time of day can have an effect on your sync speed. Whilst it is not recommended to reboot your modem, if you have to, the time of reboot can have an effect on your sync speed. Generally, signal to noise ratios are lower in the evening, which is why most people recommend modem reboots during the day.
goldenfibre
Pro
Posts: 2,823
Thanks: 86
Fixes: 6
Registered: 01-06-2010

Re: Line stats from HG612 Modem

Your stats are very very good but the attainable rate will drop pretty soon if your is just activated FTTC. I remember mine (attainable rate was 135 Meg down and 42 Meg up when my FTTC was first activated last year Feb 2014 but it now reduced to 103 Meg down and 35 Meg up as the SNR reduced as well as it probably down to cabinet start to fill up with crosstalk)
But, Your and mine are much closer to the cabinet are likely to stay with max sync rate for a long while! Smiley
Here is my stats below:
Mode	VDSL2
Traffic Type PTM
Status Up
Link Power State L0
Downstream Upstream
Line Coding (Trellis) On On
SNR Margin (dB) 11.7 15.7
Attenuation (dB) 11.3 0.0
Output Power (dBm) 12.5 -1.3
Attainable Rate (Kbps) 103784 35021
Rate (Kbps) 79999 20000
B (# of bytes in Mux Data Frame) 130 97
M (# of Mux Data Frames in an RS codeword) 1 1
T (# of Mux Data Frames in an OH sub-frame) 0 0
R (# of redundancy bytes in the RS codeword) 8 8
S (# of data symbols over which the RS code word spans) 0.0518 0.1554
L (# of bits transmitted in each data symbol) 21468 5457
D (interleaver depth) 16 8
I (interleaver block size in bytes) 139 106
N (RS codeword size) 139 106
Delay (msec) 0 0
INP (DMT symbol) 46.00 47.00
OH Frames 0 0
OH Frame Errors 0 0
RS Words 3901139344 4165599
RS Correctable Errors 266003 257357
RS Uncorrectable Errors 0 0
HEC Errors 0 0
OCD Errors 0 0
LCD Errors 0 0
Total Cells 3507171099 0
Data Cells 1663326359 0
Bit Errors 0 0
Total ES 0 0
Total SES 0 0
Total UAS 0 0

darklight
Grafter
Posts: 142
Registered: 10-03-2013

Re: Line stats from HG612 Modem

@goldenfibre
I'm not new, i've been on FTTC for just over 2 years now with plusnet, so i guess my attainable rate will stay as is, unless it starts to fill up anymore.
goldenfibre
Pro
Posts: 2,823
Thanks: 86
Fixes: 6
Registered: 01-06-2010

Re: Line stats from HG612 Modem

@ darklight u are very lucky! Sound like no ones order FTTC at your cabinet so far since for 2 years. (Maybe there more peoples using virgin media cable in your area?)
darklight
Grafter
Posts: 142
Registered: 10-03-2013

Re: Line stats from HG612 Modem

@goldenfibre Yes there is a virgin cabinet straight across my road, when i scan for wifi in my house i see 3 VM and sky wifi signals on my phone, not many others, so i could be very lucky.