Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


Filter this topic showing only the reply marked as answer View this topic in a long page with up to 500 replies per page Create new topic
1 | ... | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | ... | 44
hio77

'That VDSL Cat'
12970 posts

Uber Geek

ID Verified
Trusted
Voyager
Subscriber

  #1866336 14-Sep-2017 16:10
Send private message

https://sp.chorus.co.nz/product-update/upgrading-vdsl-vectoring

 

 

 

More changes defined!

 

Obviously early days however.... G.INP aswell as vectoring!

 

 

 

G.INP will essentially be an alternative to interleaving.

 

Vectoring will increase speed + improve error rates.

 

 

 

I'll be closely watching!

 

I've seen a few hints of this popping up around the place on live connections so it is great to see it all confirmed.





#include <std_disclaimer>

 

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

 

 


Affiliate link
 
 
 

Affiliate link: LastPass securely stores your passwords and other personal data.
Djmixerdomo
241 posts

Master Geek

Subscriber

  #1866349 14-Sep-2017 16:31
Send private message

I've just been watching my line stats for the past few minutes and have been seeing some really weird behaviour.

 

Every time the modem updates the stats (every 20s) my downstream SNR flip-flops between 6.1 and 8.3dB, with the attainable speed changing appropriately.





PC: R7 3700X/32GB/RTX3070

 

Laptop: M1 Pro/32GB Macbook Pro

 

Car: Toyota Celica GT-Four ST205


hio77

'That VDSL Cat'
12970 posts

Uber Geek

ID Verified
Trusted
Voyager
Subscriber

  #1866382 14-Sep-2017 17:13
Send private message

Djmixerdomo:

 

I've just been watching my line stats for the past few minutes and have been seeing some really weird behaviour.

 

Every time the modem updates the stats (every 20s) my downstream SNR flip-flops between 6.1 and 8.3dB, with the attainable speed changing appropriately.

 

 

 

 

This sounds like possible RFI or the likes.

 

Get a LQD ran if it is affecting your line.





#include <std_disclaimer>

 

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

 

 




AidanP
74 posts

Master Geek


  #1880322 10-Oct-2017 12:50
Send private message

This morning our vdsl speeds went from 69mbps down and 22mbps up to 85 down and 32up and i have confirmed that our linecard has been changed to a broadcomm.

It started at 8am and finished at 8.30am


hio77

'That VDSL Cat'
12970 posts

Uber Geek

ID Verified
Trusted
Voyager
Subscriber

  #1880339 10-Oct-2017 13:35
Send private message

AidanP:

 

This morning our vdsl speeds went from 69mbps down and 22mbps up to 85 down and 32up and i have confirmed that our linecard has been changed to a broadcomm.

It started at 8am and finished at 8.30am

 

 

 

Happen to know your Cabinet ID?  eg - WAK/C





#include <std_disclaimer>

 

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

 

 


AidanP
74 posts

Master Geek


  #1880342 10-Oct-2017 13:40
Send private message

hio77:

 

AidanP:

 

This morning our vdsl speeds went from 69mbps down and 22mbps up to 85 down and 32up and i have confirmed that our linecard has been changed to a broadcomm.

It started at 8am and finished at 8.30am

 

 

 

Happen to know your Cabinet ID?  eg - WAK/C

 



TAW/AC


hio77

'That VDSL Cat'
12970 posts

Uber Geek

ID Verified
Trusted
Voyager
Subscriber

  #1880391 10-Oct-2017 15:01
Send private message

AidanP:

 

TAW/AC

 

 

Yep, planned work today to change out linecards.

 

 

 

 





#include <std_disclaimer>

 

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

 

 




timmay556
98 posts

Master Geek
Inactive user


  #1881927 11-Oct-2017 12:56
Send private message

hio77:

https://sp.chorus.co.nz/product-update/upgrading-vdsl-vectoring


 


More changes defined!


Obviously early days however.... G.INP aswell as vectoring!


 


G.INP will essentially be an alternative to interleaving.


Vectoring will increase speed + improve error rates.


 


I'll be closely watching!


I've seen a few hints of this popping up around the place on live connections so it is great to see it all confirmed.


Hi Hio, for someone like me 1.9km from the exchange will this make any difference?
Thanks

hio77

'That VDSL Cat'
12970 posts

Uber Geek

ID Verified
Trusted
Voyager
Subscriber

  #1881936 11-Oct-2017 13:02
Send private message

timmay556:
Hi Hio, for someone like me 1.9km from the exchange will this make any difference?
Thanks

 

I'm further and these changes WILL provide a decent improvement. (i'm rural though)

 

 

 

Much of the vectoring will actually help longer lines in Urban situations more too.

 

Real world though, each to their own... we are yet to see.

 

 

 

I'd love to have WAK/C upgraded to test with @chorusnz ;)





#include <std_disclaimer>

 

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

 

 


timmay556
98 posts

Master Geek
Inactive user


  #1881937 11-Oct-2017 13:06
Send private message

That's fantastic, I am only on a ADSL modem, do you know where I can find when my exchange will be upgraded and how I would test potential VDSL speeds?
Thanks

hio77

'That VDSL Cat'
12970 posts

Uber Geek

ID Verified
Trusted
Voyager
Subscriber

  #1881938 11-Oct-2017 13:14
Send private message

timmay556: That's fantastic, I am only on a ADSL modem, do you know where I can find when my exchange will be upgraded and how I would test potential VDSL speeds?
Thanks

 

If your on spark's network i can very likely give you an accurate figure based on testing.

 

 

 

past that i can manually do a few things to give you a good idea.

 

Realistically though, depending on situation results can still be a mixed bag - Quality of copper, crosstalk etc is the biggest pulling factor still.





#include <std_disclaimer>

 

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

 

 


DS248
1584 posts

Uber Geek


  #1881959 11-Oct-2017 13:51
Send private message

The chart on p4 of the Chorus White Paper, indicates very little benefit of VDSL, vectoring or otherwise, at 1.9km.  Even in our situation (1.5km, mainly rural line) vectoring seems to have a relatively small impact.

 

Having said that I am not certain how real the numbers are in that plot.  Based on the White Paper numbers, our DS rate would be only ~20Mbs without vectoring.  Our actual rate is typically ~27Mbs (33-34 'attainable') on 17a and ~25Mbs to 30+Mbs (33-38 'attainable') on 8b (another story).

 

Will be interesting to see what happens.

 

 

 

Is there a cabinet upgrade schedule available for areas beyond the pilot study area?  I assume we are on RDB/M (anyway to determine that from our modem (DSL-AC56U)?

 

 

 

 

 


hio77

'That VDSL Cat'
12970 posts

Uber Geek

ID Verified
Trusted
Voyager
Subscriber

  #1881961 11-Oct-2017 14:12
Send private message

DS248:

 

The chart on p4 of the Chorus White Paper, indicates very little benefit of VDSL, vectoring or otherwise, at 1.9km.  Even in our situation (1.5km, mainly rural line) vectoring seems to have a relatively small impact.

 

Having said that I am not certain how real the numbers are in that plot.  Based on the White Paper numbers, our DS rate would be only ~20Mbs without vectoring.  Our actual rate is typically ~27Mbs (33-34 'attainable') on 17a and ~25Mbs to 30+Mbs (33-38 'attainable') on 8b (another story).

 

Will be interesting to see what happens.

 

 

 

Is there a cabinet upgrade schedule available for areas beyond the pilot study area?  I assume we are on RDB/M (anyway to determine that from our modem (DSL-AC56U)?

 

 

 

 

Most of the improvements will be to Noise.

 

Hidden little benefit of enabled G.INP, is the difference to how Interleaving is handled.

 

 

 

at distance, you can't polish a turd. Loss of distance is a very real thing.

 

Influences further pulling it down though, you can alleviate a little.

 

 

 

 

 

The graphs are based on alot of theory.

 

Chorus have some ammazing theory behind their estimations.

 

 

 

For my line, i get 21/2 on VDSL at 6dB snr at 26dB. (ADSL was 15/1 at 12dB snr @ 27dB, VDSL @12dB is 17/1)

 

Chorus estimate, 12/1 on VDSL and ADSL. 9.6- 16.15dB estimated attenuation at 160k.

 

 





#include <std_disclaimer>

 

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

 

 


DS248
1584 posts

Uber Geek


  #1881963 11-Oct-2017 14:17
Send private message

On a different issue, I notice that we are frequently switched back and forth between 8b and 17a profiles.  Sometimes it appears to be almost on a daily basis, though at the moment it has been on 17a for over five days (longest I have noticed it for a while).

 

Why the constant switching?

 

DS & US rates are more consistent on 17a, but US rate in particular is lower (~2.0Mbs vs ~2.8Mbs).  Error rate in 17a is generally a lot higher, though I gather still well within acceptable limits.

 

 

 

==

 

Would also be interesting to know why DS SNR varies on 8b?   Sometimes down to 6.3 - 6.7 (attainable rate up to 38, even for SNR 7.4), most recently up to 9.5 (attainable rate <34).

 

Also, why the often 'large' margin between attainable and actual DS rates?  A lot smaller for US.

 

Be nice if US rate was higher :).

 

 

 

 

 

 

 

 

 

 

 


DS248
1584 posts

Uber Geek


  #1881966 11-Oct-2017 14:27
Send private message

Should have mentioned, US errors are negligible on both 8b and 17a (hence did not bother to include in the table).

 

eg. currently a total of three (3) US errors after 5 days 10 hours up time on 17a (vs 1254 DS errors)


1 | ... | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | ... | 44
Filter this topic showing only the reply marked as answer View this topic in a long page with up to 500 replies per page Create new topic





News and reviews »

Samsung Introducing Galaxy Z Flip4 and Galaxy Z Fold4
Posted 11-Aug-2022 01:00


Samsung Unveils Health Innovations with Galaxy Watch5 and Galaxy Watch5 Pro
Posted 11-Aug-2022 01:00


Google Bringing First Cloud Region to Aotearoa New Zealand
Posted 10-Aug-2022 08:51


ANZ To Move to FIS Modern Banking Platform
Posted 10-Aug-2022 08:28


GoPro Hero10 Black Review
Posted 8-Aug-2022 17:41


Amazon to Acquire iRobot
Posted 6-Aug-2022 11:41


Samsung x LIFE Picture Collection Brings Iconic Moments in History to The Frame
Posted 4-Aug-2022 17:04


Norton Consumer Cyber Safety Pulse Report: Phishing for New Bait on Social Media
Posted 4-Aug-2022 16:50


Microsoft Announces New Solutions for Threat Intelligence and Attack Surface Management
Posted 3-Aug-2022 21:54


Seagate Addresses Hyperscale Workloads with Enterprise-Class Nytro SSDs
Posted 3-Aug-2022 21:50


Visa Launching Eco-friendly Payment Solutions in New Zealand
Posted 3-Aug-2022 21:48


NCR Delivers Services to Run Bank of New Zealand ATM Network
Posted 30-Jul-2022 11:06


New HP Portfolio Supports New Era of Hybrid Work
Posted 28-Jul-2022 17:14


Harman Kardon Launches Citation MultiBeam 1100 Soundbar
Posted 28-Jul-2022 17:10


Nanogirl Labs Launches Creator Project
Posted 28-Jul-2022 17:05









Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.







Backblaze unlimited backup