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.




4171 posts

Uber Geek


# 245176 22-Jan-2019 14:52
One person supports this post
Send private message

Probably looking at @Hio77, but keen to hear others thoughts.

 

Chucked a new VDSL connection for a custom, on a POTS line, filter installed.

 

Stats (from Chorus side) look like this:

 

DIAGNOSIS PARAMETERS
ACTUAL BITRATE
DOWNSTREAM 113.279 Mb/s
UPSTREAM 29.999 Mb/s

 


ACTUAL PSD
DOWNSTREAM -56.2 dBm/Hz
UPSTREAM -65.0 dBm/Hz

 


USER TRAFFIC
DOWNSTREAM Detected
UPSTREAM Detected

 


ATTAINABLE BITRATE
DOWNSTREAM 113.635 Mb/s
UPSTREAM 36.513 Mb/s

 


ATTENUATION
DOWNSTREAM 11.9 dB
UPSTREAM 14.8 dB

 


NOISE MARGIN
DOWNSTREAM 6.1 dB
UPSTREAM 9.9 dB

 


OUTPUT POWER
DOWNSTREAM 14.5 dBm
UPSTREAM 1.9 dBm

 


RELATIVE CAPACITY OCCUPATION
DOWNSTREAM 99.0 %
UPSTREAM 85.0 %

 


LOOP ATTENUATION
DOWNSTREAM 11.9 dB
UPSTREAM 14.8 dB

 

LINE OPERATIONAL INFO
ESTIMATED ELT DISTANCE 343
LAST STATUS CHANGED 1548120309962
LINE STATUS up
SERVICE STABILITY UNSTABLE
LINE CONFIGURATION
CPE TYPE Unknown
DSL TYPE non.shdsl.opermode vdsl2.g9932.profile.17a, line.type.pots
LINE ID
USER LABEL Unknown
SPECTRUM PROFILE NAME EUBAV-VDSL2-1
SERVICE PROFILE NAME EUBAV-I-FSFS
SERVICE TEMPLATE NAME VDSL2-I-V-ddDLM

 

So it's rocking it hard on a 17a profile at 110Mbps down, but is "unstable" in Chorus' words and also from our own monitoring via SNMP.   I've requested we pull it back to a 9b profile, but wondering if there is a better option. Obviously could just simply be a bad line, so no amount of profile changing will help. But from experience, what do people reckon?

 

 

 

Edit: dam, tables didn't come out properly lol


Create new topic
'That VDSL Cat'
10763 posts

Uber Geek

Trusted
Spark
Subscriber

  # 2165489 22-Jan-2019 14:57
Send private message

ok, so lets break this down..

 

 

 

Firstly, dropping to 8b is not possible, that's a vectored line.

 

 

 

Secondly, "unstable" - to this date nobody has been able to clarify exactly what that means.

 

often it's easily trigged by a single reconnection.

 

 

 

The fact that your getting in via your monitoring, i'd suspect you mean radius session is dropping?

 

 

 

 

 

What modem is on this? is it vectoring capable? Have you ran an LQD to get an idea of the underlying line?

 

hows the POT's line sounding?

 

 

 

Short of an obvious fault somewhere, have seen plenty of cases like this that seemed to occur on vectoring.

 

All the ones I've had @BMaquris look at have ended up being line related issues. Unfortunately it seems @ChorusNZ field techs can sometimes struggle to locate the cause of these issues and opt to instead just do dumb things like remove vectoring...





#include <std_disclaimer>

 

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


6615 posts

Uber Geek
Inactive user


  # 2165502 22-Jan-2019 15:21
Send private message

Secondly, "unstable" - to this date nobody has been able to clarify exactly what that means.

 

 

 

often it's easily trigged by a single reconnection.

 

@hio77

 

When you say this, are you referring to someone like me in 2014 with a dodgey VDSL line who'd make the entire neighborhood lose sync on resync?


 
 
 
 


'That VDSL Cat'
10763 posts

Uber Geek

Trusted
Spark
Subscriber

  # 2165506 22-Jan-2019 15:23
Send private message

Coil:

 

When you say this, are you referring to someone like me in 2014 with a dodgey VDSL line who'd make the entire neighborhood lose sync on resync?

 

 

Nope, purely referring to the "Service Stability" field.

 

 

 

I'm not kidding when i say it's an ambiguous field.

 

You know exactly why your line caused issues...





#include <std_disclaimer>

 

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


6615 posts

Uber Geek
Inactive user


  # 2165515 22-Jan-2019 15:36
Send private message

hio77:

 

Coil:

 

When you say this, are you referring to someone like me in 2014 with a dodgey VDSL line who'd make the entire neighborhood lose sync on resync?

 

 

Nope, purely referring to the "Service Stability" field.

 

 

 

I'm not kidding when i say it's an ambiguous field.

 

You know exactly why your line caused issues...

 

 

 

 

14-15 volts instead of 8 or what ever it was. 
I see what you mean by "Service Stability" in the modem extract. 




4171 posts

Uber Geek


  # 2165516 22-Jan-2019 15:39
Send private message

hio77:

 

Firstly, dropping to 8b is not possible, that's a vectored line.

 

Secondly, "unstable" - to this date nobody has been able to clarify exactly what that means.

 

The fact that your getting in via your monitoring, i'd suspect you mean radius session is dropping?

 

 

 

 

 

What modem is on this? is it vectoring capable? Have you ran an LQD to get an idea of the underlying line?

 

hows the POT's line sounding?

 

 

oops, 8b, that's what I meant.

 

Unstable - interesting, probably why my wholesaler couldn't answer that question either haha.

 

Yea should have clarified, from our own monitoring I just see the radius session drop, and some of those drops have been long enough to trigger an alert on the SNMP system.

 

Draytek DV130 is the modem (Mikrotik is the router, and terminates PPPoE), and that's a point, I must check the firmware version.

 

And no, I don't think they have done an LQD yet because I just asked if we could change profiles.

 

Yea line is good, no noise etc.


'That VDSL Cat'
10763 posts

Uber Geek

Trusted
Spark
Subscriber

  # 2165519 22-Jan-2019 15:46
Send private message

chevrolux:

 

Unstable - interesting, probably why my wholesaler couldn't answer that question either haha.

 

Yea should have clarified, from our own monitoring I just see the radius session drop, and some of those drops have been long enough to trigger an alert on the SNMP system.

 

Draytek DV130 is the modem (Mikrotik is the router, and terminates PPPoE), and that's a point, I must check the firmware version.

 

And no, I don't think they have done an LQD yet because I just asked if we could change profiles.

 

Yea line is good, no noise etc.

 

 

i'd double check the firmware on the DV130.. it's typically these i've seen issues relating to vectoring with.

 

 

 

 





#include <std_disclaimer>

 

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




4171 posts

Uber Geek


  # 2165928 23-Jan-2019 08:10
Send private message

Alrighty, so the router was on "3.8.4_m4" and the draytek sites recommends "3.8.4_m8" for AU & NZ customers so have upgraded to that.

 

Let's see if that makes a difference today. Must chase wholesale too on that LQD.


 
 
 
 


'That VDSL Cat'
10763 posts

Uber Geek

Trusted
Spark
Subscriber

  # 2165982 23-Jan-2019 10:09
Send private message

chevrolux:

 

Alrighty, so the router was on "3.8.4_m4" and the draytek sites recommends "3.8.4_m8" for AU & NZ customers so have upgraded to that.

 

Let's see if that makes a difference today. Must chase wholesale too on that LQD.

 

 

They only give you api access responses?

 

 

 

that would make technical support difficult.





#include <std_disclaimer>

 

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




4171 posts

Uber Geek


  # 2166063 23-Jan-2019 10:42
One person supports this post
Send private message

hio77:

 

chevrolux:

 

Alrighty, so the router was on "3.8.4_m4" and the draytek sites recommends "3.8.4_m8" for AU & NZ customers so have upgraded to that.

 

Let's see if that makes a difference today. Must chase wholesale too on that LQD.

 

 

They only give you api access responses?

 

that would make technical support difficult.

 

 

Na, just reinforces the sales pitch that we need to get fibre or fixed wireless connected!


'That VDSL Cat'
10763 posts

Uber Geek

Trusted
Spark
Subscriber

  # 2166072 23-Jan-2019 10:57
Send private message

With a profile like that, it's hard to argue to switch to wireless or Fibre though!





#include <std_disclaimer>

 

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




4171 posts

Uber Geek


  # 2166485 23-Jan-2019 19:59
One person supports this post
Send private message

Well since 08:06 there have been no radius resets!!

 

So, knocking on some big chunky wood, reckon that firmware upgrade has done the job.


'That VDSL Cat'
10763 posts

Uber Geek

Trusted
Spark
Subscriber

  # 2166487 23-Jan-2019 20:01
Send private message

chevrolux:

Well since 08:06 there have been no radius resets!!


So, knocking on some big chunky wood, reckon that firmware upgrade has done the job.



How's the stats looking?




#include <std_disclaimer>

 

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


Create new topic



Twitter and LinkedIn »



Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Bitcoin.com announces partnership with smartphone manufacturer HTC
Posted 16-Sep-2019 21:30


Finalists Announced for Microsoft NZ Partner Awards
Posted 16-Sep-2019 19:37


OPPO Showcases New CameraX Capabilities at Google Developer Days China 2019
Posted 15-Sep-2019 12:42


New Zealand PC Market returns to growth
Posted 15-Sep-2019 12:24


Home sensor charity director speaks about the preventable death which drives her to push for healthy homes
Posted 11-Sep-2019 08:46


Te ao Maori Minecraft world set to inspire Kiwi students
Posted 11-Sep-2019 08:43


Research reveals The Power of Games in New Zealand
Posted 11-Sep-2019 08:40


Ring Door View Cam now available in New Zealand
Posted 11-Sep-2019 08:38


Vodafone NZ to create X Squad
Posted 10-Sep-2019 10:25


Huawei nova 5T to be available 20th September
Posted 5-Sep-2019 11:55


Kogan.com launches prepay challenger brand Kogan Mobile in New Zealand
Posted 3-Sep-2019 11:42


Pagan Online available now
Posted 27-Aug-2019 20:22


Starship hopes new app will help combat antibiotic resistance challenges
Posted 27-Aug-2019 19:43


Intel expands 10th Gen Intel Core Mobile processor family
Posted 23-Aug-2019 10:22


Digital innovation drives new investment provider
Posted 23-Aug-2019 08:29



Geekzone Live »

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


Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron



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.

Alternatively, you can receive a daily email with Geekzone updates.