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Author Topic: FTTC Modem Question  (Read 39623 times)

burakkucat

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Re: FTTC Modem Question
« Reply #165 on: April 29, 2016, 12:13:25 AM »

Here is an alternative source for a new NTE5/A.
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JoshShep

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Re: FTTC Modem Question
« Reply #166 on: April 29, 2016, 12:20:25 AM »

Thanks everyone. If I manage to get an Engineer visit, I'll ask him to replace the NTE5. If not I'll upgrade myself.

JoshShep

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Re: FTTC Modem Question
« Reply #167 on: April 29, 2016, 05:39:49 PM »

WTH, just had a look at my DSL stats while at work and see just before 3pm my SNR margin shot right up to 6.8 the highest its ever been. No one has been at home today so its nothing in our property that's causing interference. Then it just went right back down. Clearly something isn't right here!!!

Alex Atkin UK

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Re: FTTC Modem Question
« Reply #168 on: April 29, 2016, 05:53:28 PM »

Yes indeed:

http://speedof.me/show.php?img=160331215914-9522.png

That's because SpeedOf.me is extremely inaccurate IMO as during the test it shows peak speeds of 81.29Mbit for my connection which is impossible.  When I was on Digital Region 100Mbit it would usually come up well short of my real-world performance.
http://speedof.me/show.php?img=160429164856-6506.png

The only speedtest I really trust is http://dslreports.com/speedtest as it seems to consistently report around the speed I can get in real-world scenarios.
http://www.dslreports.com/speedtest/3755789
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roseway

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Re: FTTC Modem Question
« Reply #169 on: April 29, 2016, 06:23:33 PM »

WTH, just had a look at my DSL stats while at work and see just before 3pm my SNR margin shot right up to 6.8 the highest its ever been. No one has been at home today so its nothing in our property that's causing interference. Then it just went right back down. Clearly something isn't right here!!!

If the SNRM went up then this was the result of a temporary reduction in interference. A common reason for this is when a local crosstalk disturber goes offline for a short period.
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JoshShep

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Re: FTTC Modem Question
« Reply #170 on: April 30, 2016, 12:33:12 AM »

Just for peace of mind, I've unhooked the extension going to the secondary socket.

The first thing I noticed is Interleaving has dropped to 1501, not a big deal I know, also the attenuation has dropped 0.1, again nothing to brag about, but one thing I have noticed is the Power (dBm) has increased from 1.1 to 2.6. Why is this?

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   0
Last initialization procedure status:   0
Max:   Upstream rate = 28934 Kbps, Downstream rate = 88848 Kbps
Bearer:   0, Upstream rate = 20000 Kbps, Downstream rate = 76729 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):    6.3       12.3
Attn(dB):    13.2       0.0
Pwr(dBm):    13.8       2.6
         VDSL2 framing
         Bearer 0
MSGc:      18      150
B:      51      236
M:      1      1
T:      64      5
R:      12      16
S:      0.0216      0.3771
L:      23744      5410
D:      1501      1
I:      64      255
N:      64      255
         Counters
         Bearer 0
OHF:      871194      197090
OHFErr:      0      0
RS:      222842541      4214623
RSCorr:      1644      0
RSUnCorr:   0      0

         Bearer 0
HEC:      0      0
OCD:      0      0
LCD:      0      0
Total Cells:   178046218      0
Data Cells:   63600      0
Drop Cells:   0
Bit Errors:   0      0

ES:      0      0
SES:      0      0
UAS:      28      28
AS:      1207

         Bearer 0
INP:      3.00      0.00
INPRein:   0.00      0.00
delay:      8      0
PER:      1.38      6.15
OR:      138.58      202.87
AgR:      76867.73   20203.27

Bitswap:   406/406      0/0

Total time = 20 min 35 sec
FEC:      1644      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      28      28
LOS:      0      0
LOF:      0      0
LOM:      0      0
Latest 15 minutes time = 5 min 35 sec
FEC:      0      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Previous 15 minutes time = 15 min 0 sec
FEC:      1644      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      28      28
LOS:      0      0
LOF:      0      0
LOM:      0      0
Latest 1 day time = 20 min 35 sec
FEC:      1644      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      28      28
LOS:      0      0
LOF:      0      0
LOM:      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
LOM:      0      0
Since Link time = 20 min 7 sec
FEC:      1644      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
#

JoshShep

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Re: FTTC Modem Question
« Reply #171 on: May 01, 2016, 06:43:22 PM »

Does anyone know why the Power (dBm) has increased from 1.1 to 2.6 after removing the extension socket, the modem re synced itself last night lost some more downstream speed.

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason:   1
Last initialization procedure status:   0
Max:   Upstream rate = 29162 Kbps, Downstream rate = 88660 Kbps
Bearer:   0, Upstream rate = 20000 Kbps, Downstream rate = 76548 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):    6.3       12.4
Attn(dB):    13.3       0.0
Pwr(dBm):    13.8       2.4
         VDSL2 framing
         Bearer 0
MSGc:      18      150
B:      51      236
M:      1      1
T:      64      5
R:      12      16
S:      0.0216      0.3771
L:      23688      5410
D:      1499      1
I:      64      255
N:      64      255
         Counters
         Bearer 0
OHF:      28297274      937563
OHFErr:      0      1
RS:      2948952138      211557
RSCorr:      11537      25
RSUnCorr:   0      0

         Bearer 0
HEC:      0      0
OCD:      0      0
LCD:      0      0
Total Cells:   1489343921      0
Data Cells:   180590260      0
Drop Cells:   0
Bit Errors:   0      0

ES:      13      13
SES:      11      0
UAS:      71      60
AS:      39297

         Bearer 0
INP:      3.00      0.00
INPRein:   0.00      0.00
delay:      8      0
PER:      1.38      6.15
OR:      138.25      202.87
AgR:      76686.44   20203.27

Bitswap:   14987/14987      1/1

Total time = 1 days 8 hours 42 min 39 sec
FEC:      61458      127
CRC:      6855      17
ES:      13      13
SES:      11      0
UAS:      71      60
LOS:      1      0
LOF:      9      0
LOM:      0      0
Latest 15 minutes time = 12 min 39 sec
FEC:      665      8
CRC:      0      1
ES:      0      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:      21      0
CRC:      0      0
ES:      0      0
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Latest 1 day time = 8 hours 42 min 39 sec
FEC:      9447      24
CRC:      0      1
ES:      0      1
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
Previous 1 day time = 24 hours 0 sec
FEC:      52011      103
CRC:      6855      16
ES:      13      12
SES:      11      0
UAS:      71      60
LOS:      1      0
LOF:      9      0
LOM:      0      0
Since Link time = 10 hours 54 min 57 sec
FEC:      11537      25
CRC:      0      1
ES:      0      1
SES:      0      0
UAS:      0      0
LOS:      0      0
LOF:      0      0
LOM:      0      0
#

kitz

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Re: FTTC Modem Question
« Reply #172 on: May 02, 2016, 02:43:18 PM »

Sorry no.   I know power can be turned up during bit-swap process.
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JoshShep

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Re: FTTC Modem Question
« Reply #173 on: May 02, 2016, 04:29:00 PM »

Sorry no.   I know power can be turned up during bit-swap process.

Not sure then, is is a positive change it going up?

JoshShep

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Re: FTTC Modem Question
« Reply #174 on: May 09, 2016, 06:28:17 PM »

This makes me happy  :dance:

 1    <1 ms    <1 ms    <1 ms  router.asus.com [192.168.1.254]
  2    12 ms    12 ms    11 ms  lo0.11.Central11.ptn-bng02.plus.net [195.166.130.191]
  3    14 ms    12 ms    11 ms  irb.11.PTW-CR02.plus.net [84.93.249.18]
  4    12 ms    12 ms    12 ms  ae2.ptw-cr01.plus.net [195.166.129.4]
  5    12 ms    12 ms    12 ms  kingston-gw.thdo.bbc.co.uk [212.58.239.6]
  6     *        *        *     Request timed out.
  7     *        *        *     Request timed out.
  8    12 ms    12 ms    12 ms  ae0.er01.telhc.bbc.co.uk [132.185.254.109]
  9    14 ms    13 ms    14 ms  132.185.255.148
 10    12 ms    12 ms    12 ms  212.58.244.22

JoshShep

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Re: FTTC Modem Question
« Reply #175 on: May 10, 2016, 09:09:17 PM »

Just got few questions, I have noticed a lot of people on ECI cabs Kitz included, have recently all synced at the same speed 79987kbps. Why is this? Also a lot of users also have one amber light showing does this mean the lines are going to intervene? And one last question, how many ES are we allowed in general per 24 hours before DLM kicks in?

Thanks everyone!

Dray

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Re: FTTC Modem Question
« Reply #176 on: May 10, 2016, 09:15:33 PM »

The 79987 appears to be the max sync for a non-interleaved connection with G.INP off.
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ejs

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Re: FTTC Modem Question
« Reply #177 on: May 10, 2016, 09:20:18 PM »

ILQ of Amber is supposed to be indicate an acceptable level of performance, so no DLM change.
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Chrysalis

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Re: FTTC Modem Question
« Reply #178 on: May 10, 2016, 10:09:08 PM »

Regarding power level, I think currently the DS power is bugged in modem stats (always seems to match US power), and the US power varies everytime line is synced which affects US snr (this may not apply to those without UPBO).  e.g. I had circa 9db snrm 28mbit attainable US last week, when I resynced I now have circa 12db snrm and 30mbit attainable.
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JoshShep

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Re: FTTC Modem Question
« Reply #179 on: May 10, 2016, 10:57:51 PM »

Thanks everyone!  :)
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