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 | 2 


124 posts

Master Geek
+1 received by user: 3


  # 1559604 25-May-2016 19:45
Send private message

hio77:

 

variable:

 

I am seeing some speed improvement as I am typing, will report back if problem comes back.

 

 

As my above comment, this is sounding like a congested connection at the user level rather than a fault at all.

 

 

 

Post the stats, if you need directions do ask, i have an orcon VDSL modem sitting at my feet i could power up and hand you exact directions.

 

 

 

 

The result is up and down, sometimes fast sometimes slow... 

 

Statistics -- xDSL

 

 

 

Synchronized Time: 0:1:10:27

 

Number of Synchronizations: 0

 

 

Mode: VDSL2 Annex B

 

Traffic Type: PTM

 

Status: Up

 

Link Power State: L0

 

Copper Loop(kft): 0.0

 

 

Downstream Upstream

 

Line Coding(Trellis): On On

 

SNR Margin (0.1 dB): 83 93

 

Attenuation (0.1 dB): 328 0

 

Output Power (0.1 dBm): 185 105

 

Attainable Rate (Kbps): 21850 1168

 

 

Path 0 Path 1

 

Downstream Upstream Downstream Upstream

 

Rate (Kbps): 22118 1159 0 0

 

 

B (# of bytes in Mux Data Frame): 223 219 0 0

 

M (# of Mux Data Frames in an RS codeword): 1 1 0 0

 

T (# of Mux Data Frames in an OH sub-frame): 64 7 0 0

 

R (# of redundancy bytes in the RS codeword): 16 16 0 0

 

S (# of data symbols over which the RS code word spans): 0.3221 6.0377 0.0000 0.0000

 

L (# of bits transmitted in each data symbol): 5960 318 0 0

 

D (interleaver depth): 97 11 0 0

 

I (interleaver block size in bytes): 240 120 0 0

 

N (RS codeword size): 240 240 0 0

 

Delay (msec): 8 8 0 0

 

INP (DMT symbol): 1.00 1.00 0.00 0.00

 

 

OH Frames: 807999 393013 0 0

 

OH Frame Errors: 54 0 0 0

 

RS Words: 51699715 2767852 0 0

 

RS Correctable Errors: 12556 0 0 0

 

RS Uncorrectable Errors: 890 0 0 0

 

 

HEC Errors: 317 0 0 0

 

OCD Errors: 0 0 0 0

 

LCD Errors: 0 0 0 0

 

Total Cells: 177834173 0 0 0

 

Data Cells: 14174769 0 0 0

 

Bit Errors: 0 0 0 0

 

 

Total ES: 29 0

 

Total SES: 0 0

 

Total UAS: 28 28

 


'That VDSL Cat'
10473 posts

Uber Geek
+1 received by user: 2518

Trusted
Spark
Subscriber

  # 1559606 25-May-2016 19:51
Send private message

alright so you are synced at 22/1.1 ild pick you were about 14/1 on adsl? thats a reasonable jump

 

 

 

Given the asymmetric nature of 998 sadly there isnt too much of a jump in upstream there. 1mbit upstream is very easy to congest, too many open connections acking is plenty enough to bring it to its knees. 

 

Remember you need upstream traffic to acknowledge traffic to come down the downstream in tcp which will be probably 90% of what you currently use.

 

 

 

Your on a 8/8ms profile, looks like DLM-4 so to the core you would atbest probably see about 16ms. Jitter ontop of that is most certainly congestion on your upstream.

 

 

 

Do you have Icloud, dropbox or some sort of other cloud based service running in the background potentially uploading? 

 

 

 

I would recommend an isolation test, remove all devices off the network, connect a single computer via Ethernet. ensure nothing is running in the background and test.

 

for that sync rate, you will probably get about 20/1 on a speedtest with about >20ms ping (estimations not an accurate calculation)

 

 

 

Your connection has been up for over an hour, any jitter/Variance past that is not todo with the physical DSL connectivity but elsewhere.





#include <std_disclaimer>

 

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


 
 
 
 




124 posts

Master Geek
+1 received by user: 3


  # 1559607 25-May-2016 19:55
Send private message

well yeah, I have dropbox and icloud, but I think it's more due to google photos uploading images. Saying that, I didn't experience any issues like this using ADSL.


'That VDSL Cat'
10473 posts

Uber Geek
+1 received by user: 2518

Trusted
Spark
Subscriber

  # 1559610 25-May-2016 20:00
One person supports this post
Send private message

variable:

 

well yeah, I have dropbox and icloud, but I think it's more due to google photos uploading images. Saying that, I didn't experience any issues like this using ADSL.

 

 

Different routers handle queueing differently, maybe your last router simply handled it better.

 

 

 

the issue your experiencing is textbook results of a connection being saturated in the upstream.

 

 

 

in terms of the move up in technology, VDSL is using PTM rather than ATM in the DSL layer for transits which IMO is a massive benefit even if there is no speed change between ADSL and VDSL.





#include <std_disclaimer>

 

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




124 posts

Master Geek
+1 received by user: 3


  # 1559621 25-May-2016 20:14
Send private message

hio77:

 

variable:

 

well yeah, I have dropbox and icloud, but I think it's more due to google photos uploading images. Saying that, I didn't experience any issues like this using ADSL.

 

 

Different routers handle queueing differently, maybe your last router simply handled it better.

 

 

 

the issue your experiencing is textbook results of a connection being saturated in the upstream.

 

 

 

in terms of the move up in technology, VDSL is using PTM rather than ATM in the DSL layer for transits which IMO is a massive benefit even if there is no speed change between ADSL and VDSL.

 

 

OK thank you for the info, will keep an eye on the connection.




124 posts

Master Geek
+1 received by user: 3


  # 1568143 8-Jun-2016 18:32
Send private message

It's me again, after 13 days, I am still having bad connection... dns takes forever to resolve and page takes forever to load...

 

See below separate tests, either ping is too high or jitter is massive

 

 

 

 


5473 posts

Uber Geek
+1 received by user: 1914


  # 1568146 8-Jun-2016 18:40
Send private message

What happens when you stop your Google photos upload?


 
 
 
 




124 posts

Master Geek
+1 received by user: 3


  # 1568189 8-Jun-2016 20:10
Send private message

RunningMan:

 

What happens when you stop your Google photos upload?

 

 

A bit better, looks like the upload is killing the download, any way to prioritise download on Orcon Modem?


'That VDSL Cat'
10473 posts

Uber Geek
+1 received by user: 2518

Trusted
Spark
Subscriber

  # 1568224 8-Jun-2016 20:32
Send private message

different modems and routers handle queuing differently.

 

 

 

What your seeing is quite simply, bufferbloat in terms of the latency.

 

as for your DNS issues, it is udp based, congesting your line will cause packets to be dropped, UDP packets would not be retransmitted. so your DNS server needs to work out it failed to resolve and try again.

 

 

 

Heres a quick test on my line, peak time usage so little more latency and network usage than normal. Im not about to brave the force of unplugging everyone!

 

 

To test for you, here is the same test with all queuing disabled on my router (do be aware, the modem is still doing its queuing - be it only handling bridging)

 

 

 

 

 

 

 

on an average device, handling queuing is rather basic and limited. for download performance, you want to be prioritising your ACKs in particular, although everything would want to be above bulk level transfers. Dont think the orcon modem has very much in options here.

 

Often the trick to queuing is, you give some speed for leway to control things. its a catch22, You cant magically make things work.

 

 

 

Encase you want details to compare directly, my setup is a TG582n bridged to PFsense, VLAN 10 PPPoE over adsl. it seems this evening vodafone have a odd jump in their network over the Layer 2 routing adding a pretty flat 7~8ms ontop of everything. my queuing is FAIRQ based, with codel extensions applied.

 

 

 

Codel is an interesting topic in queueing to read up on if your technically interested.





#include <std_disclaimer>

 

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


27966 posts

Uber Geek
+1 received by user: 7456

Moderator
Trusted
Biddle Corp
Lifetime subscriber

  # 1568275 8-Jun-2016 21:10
One person supports this post
Send private message

variable:

 

It's me again, after 13 days, I am still having bad connection... dns takes forever to resolve and page takes forever to load...

 

See below separate tests, either ping is too high or jitter is massive

 

 

 

 

You are still saturating your upload. Once you resolve that your issues will go away.

 

 




124 posts

Master Geek
+1 received by user: 3


  # 1568277 8-Jun-2016 21:16
Send private message

So my upload is affecting ack packets it seems, any Orcon guys here to help me configure QoS on their modem(white one) please? I haven't done it before.

'That VDSL Cat'
10473 posts

Uber Geek
+1 received by user: 2518

Trusted
Spark
Subscriber

  # 1568286 8-Jun-2016 21:28
Send private message

variable: So my upload is affecting ack packets it seems, any Orcon guys here to help me configure QoS on their modem(white one) please? I haven't done it before.

 

 

 

ill say it again, you cant simply expect QoS to magically fix everything.

 

 

 

Saturation is saturation, mitigation is possible but it will always have an affect on you.





#include <std_disclaimer>

 

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




124 posts

Master Geek
+1 received by user: 3


  # 1568316 8-Jun-2016 21:58
Send private message

hio77:

 

variable: So my upload is affecting ack packets it seems, any Orcon guys here to help me configure QoS on their modem(white one) please? I haven't done it before.

 

 

 

ill say it again, you cant simply expect QoS to magically fix everything.

 

 

 

Saturation is saturation, mitigation is possible but it will always have an affect on you.

 

 

Fair enough, cheers.


1 | 2 
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



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 »

New Zealand government unveils new digital service to make business easier
Posted 16-Jul-2019 17:35


Scientists unveil image of quantum entanglement
Posted 13-Jul-2019 06:00


Hackers to be challenged at University of Waikato
Posted 12-Jul-2019 21:34


OPPO Reno Z now available in New Zealand
Posted 12-Jul-2019 21:28


Sony introduces WF-1000XM3 wireless headphones with noise cancellation
Posted 8-Jul-2019 16:56


Xero announces new smarter tools, push into the North American market
Posted 19-Jun-2019 17:20


New report by Unisys shows New Zealanders want action by social platform companies and police to monitor social media sites
Posted 19-Jun-2019 17:09


ASB adds Google Pay option to contactless payments
Posted 19-Jun-2019 17:05


New Zealand PC Market declines on the back of high channel inventory, IDC reports
Posted 18-Jun-2019 17:35


Air New Zealand uses drones to inspect aircraft
Posted 17-Jun-2019 15:39


TCL Electronics launches its first-ever 8K TV
Posted 17-Jun-2019 15:18


E-scooter share scheme launches in Wellington
Posted 17-Jun-2019 12:34


Anyone can broadcast with Kordia Pop Up TV
Posted 13-Jun-2019 10:51


Volvo and Uber present production vehicle ready for self-driving
Posted 13-Jun-2019 10:47


100,000 customers connected to fibre broadband network through Enable
Posted 13-Jun-2019 10:35



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.