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1387 posts

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  # 1441305 6-Dec-2015 11:50
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mikenzb:
mercutio: has anyone else found that INP settings seem to go up more readily than they used to?  one of my connections is on INP 2 now, and error count wasn't that high.. still has the same interleaving as migration day.

wondering if that's what people are seeing when they see sync rates going down over time, it reduces sync speed qutie a bit on INP 2..

curiously my other connection is on INP 0.


I was about to ask this, I started on DLM-2/4 with INP 0/1 then it resynced a few days later with DLM-4 INP 1/1 and now I'm sitting at DLM-6 INP 2/2.
My line is pretty clean no CRC errors and I don't see many other errors so I wonder what DLM is doing.

Also is it just me or am I the only one experiencing 20 SNR on the downstream (hitting 70 Mbps tho) and 8 SNR on the upstream? 


both of my lines are between 8 and 9db snr on both up and down now.  although i'm over 70 megabit on one connection.. using broadcom, it's the ikns line that seems to be doing weird INP stuff, and that's gone down from about 66 megabit to about 56 megabit on 8b.  maybe it wants to shift me to 17a and wants to reduce all errors.  i dunno, here's hoping :)

i'm on 6 delay down and 8 delay up too, which seems a little strange.

this line has always had a few crc erorrs, but not bursty.  now there is 0 since the resync at 4:20 or so this morning, just FEC...


Previous 1 day time = 24 hours 0 sec
FEC: 61909 2592
CRC: 0 5
ES: 0 3
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
Since Link time = 6 hours 26 min 11 sec
FEC: 33938 419
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0



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  # 1441327 6-Dec-2015 12:04
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mikenzb: I was about to ask this, I started on DLM-2/4 with INP 0/1 then it resynced a few days later with DLM-4 INP 1/1 and now I'm sitting at DLM-6 INP 2/2.
My line is pretty clean no CRC errors and I don't see many other errors so I wonder what DLM is doing.

Also is it just me or am I the only one experiencing 20 SNR on the downstream (hitting 70 Mbps tho) and 8 SNR on the upstream? 


i would say the reason your SNR is so high is because you have a good line and DLM thinks there is no point having a SNR of 9 or 12 when it can get away with something higher

My line started with a SNR of 16 and is currently sitting at 14dB. No point in having a lower SNR as it cant go any faster anyways.

I dropped back to DLM-1 after about 3 days.

 
 
 
 


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  # 1441407 6-Dec-2015 14:21
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mine jumped from 60/10 to 70/30 sometime last week.

A few days ago Spark lifted the 11 Mbps upload cap and i can use all the upload bandwidth. Nice.

Took me three days to go back to DLM 1

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  # 1441427 6-Dec-2015 17:02
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Just got back from a weekend away to find that my line had re-synced for the second time since the initial change to 998.

Download sync has dropped 6Mb/s (59 to 53), and upload had dropped 1Mb/s (10.4 to 9.4). Still no DLM-1 it appears.



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  # 1441430 6-Dec-2015 17:17
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Just remember that when you initially changed to 998 you SNR might not have been sitting on a standard chorus profile, ie 9dB or 12dB, it might have been on something like 7dB as when it would have resynced for the change to 998 it would have been during a quiet period. That small 2dB or so change back to a standard profile might account for your sync speed changes.

'That VDSL Cat'
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  # 1441438 6-Dec-2015 17:28
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Jase2985:
mikenzb: I was about to ask this, I started on DLM-2/4 with INP 0/1 then it resynced a few days later with DLM-4 INP 1/1 and now I'm sitting at DLM-6 INP 2/2.
My line is pretty clean no CRC errors and I don't see many other errors so I wonder what DLM is doing.

Also is it just me or am I the only one experiencing 20 SNR on the downstream (hitting 70 Mbps tho) and 8 SNR on the upstream? 


i would say the reason your SNR is so high is because you have a good line and DLM thinks there is no point having a SNR of 9 or 12 when it can get away with something higher

My line started with a SNR of 16 and is currently sitting at 14dB. No point in having a lower SNR as it cant go any faster anyways.

I dropped back to DLM-1 after about 3 days.


its actually because @mikenzb is hitting the limit, so the snr is pulling back.

Based off upstream, he is on the 9dB profile and noise is just moving around a bit.




#include <std_disclaimer>

 

Any comments made are personal opinion and do not reflect directly on the position my current or past employers may have.


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  # 1441461 6-Dec-2015 17:59
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Jase2985: Just remember that when you initially changed to 998 you SNR might not have been sitting on a standard chorus profile, ie 9dB or 12dB, it might have been on something like 7dB as when it would have resynced for the change to 998 it would have been during a quiet period. That small 2dB or so change back to a standard profile might account for your sync speed changes.


You're correct that my SNR was lower (6.4dB to be precise) after the initial 998 resync, but it changed to 9dB a few days later which didn't actually change the speeds at all.

 
 
 
 


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  # 1441499 6-Dec-2015 19:55
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Djmixerdomo:
Jase2985: Just remember that when you initially changed to 998 you SNR might not have been sitting on a standard chorus profile, ie 9dB or 12dB, it might have been on something like 7dB as when it would have resynced for the change to 998 it would have been during a quiet period. That small 2dB or so change back to a standard profile might account for your sync speed changes.


You're correct that my SNR was lower (6.4dB to be precise) after the initial 998 resync, but it changed to 9dB a few days later which didn't actually change the speeds at all.


i only dropped from 88 to 85 or something with between 7 and 8, to 8.3.  Hmm, ... I thought I was on 9 :)  i think if you have decent signal strength then slight changes in snr make a lot less difference, ... whereas if you had like 20db per tone or something then it'd make a much more significant difference.

if you're on ikns line card and capping out at 70 megabit then it'll amke zero difference on 17a in most cases it seems. (it seems that most 17a profiles on ikns hit 70 megabit)

since the 998 bandplan change i've seen way more fluctuations in snr margin on dsl stats.  like d3 was sitting on 10db until just past 7 pm, and then it dropped off sharply to 8db then gradually rose up to around 9.5db staying constant, to then drop to 8db again.  i am curious what is causing it, as snr margins used to be a lot more constant, but at the same time it doesn't seem to be creating any issues.

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  # 1441500 6-Dec-2015 20:04
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Djmixerdomo: Just got back from a weekend away to find that my line had re-synced for the second time since the initial change to 998.

Download sync has dropped 6Mb/s (59 to 53), and upload had dropped 1Mb/s (10.4 to 9.4). Still no DLM-1 it appears.




what INP are you on?

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  # 1441502 6-Dec-2015 20:11
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Not sure how to/or if i can check, I've got a HG630b. My ping on speed test is 18ms

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  # 1441503 6-Dec-2015 20:15
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Djmixerdomo: Not sure how to/or if i can check, I've got a HG630b. My ping on speed test is 18ms


INP doesn't change ping, it's under adsl stats uhh, 

hg659 isn't showing it easily in web interface you may have to use telnet/ssh :(

and google suggests that it may be spark doing that, and i think someone said that spark block ssh?


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  # 1441823 7-Dec-2015 09:53
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Looks like one of the cabinets in Orewa was done over the weekend. I've had a re-sync and my results are below.

I was always on a 17a profile prior to the Band 998 change.

However the Sync speed was about 60/11.





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  # 1441880 7-Dec-2015 11:05
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The DLM has done it's thing and I'm now on just over 100Mbit/s!
I wonder what the theoretical max upload is

 

Type ? for command help

 

> adsl status

 

 

---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------

 

Running Mode : 17A State : SHOWTIME

 

DS Actual Rate :100016000 bps US Actual Rate : 39884000 bps

 

DS Attainable Rate :104549072 bps US Attainable Rate : 39686000 bps

 

DS Path Mode : Fast US Path Mode : Fast

 

DS Interleave Depth : 0 US Interleave Depth : 0

 

NE Current Attenuation : 11 dB Cur SNR Margin : 8 dB

 

DS actual PSD : -7.-2 dB US actual PSD : 12. 3 dB

 

NE CRC Count : 0 FE CRC Count : 0

 

NE ES Count : 0 FE ES Count : 0

 

Xdsl Reset Times : 0 Xdsl Link Times : 1

 

ITU Version[0] : b5004946 ITU Version[1] : 544e0000

 

VDSL Firmware Version : 05-04-08-00-00-06

 

Power Management Mode : DSL_G997_PMS_L0

 

Test Mode : DISABLE

 

-------------------------------- ATU-C Info ---------------------------------

 

Far Current Attenuation : 0 dB Far SNR Margin : 10 dB

 

CO ITU Version[0] : b5004244 CO ITU Version[1] : 434da3f5

 

DSLAM CHIPSET VENDOR : < BDCM >

 

>

 


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  # 1441885 7-Dec-2015 11:13
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I cant complain too much about my speed upgrade. Only just noticed it today.  Not really much of a download upgrade but a huge upload upgrade speed wise.  



Really bugger all point in the stress and hassle of going to UFB atm - shared driveway syndrome :P  The modem stats are 69993/29993

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  # 1441887 7-Dec-2015 11:14
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@bensmithnz who is your ISP? you are connected at 81/34

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