[Snap] VDSL Trial on Snap

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#437410 9-Feb-2011 19:30

I'm curious... are you using a recent operating system?

Considering Snap don't seem to any transparent proxying the TCP/IP stack of your operating system would greatly effect speeds.

To my mind those speeds are terrible - and I'm thinking there is either packet loss/congestion or small TCP window sizes.

I myself have found Snap to be kind of poor performance in evenings, but during the day time speeds aren't as bad.

But for instance on normal Snap ADSL in Christchurch on EUBA I'm getting:

https://www.speedtest.net/result/1149337531.png

at 7:30 pm at night. in a few hours US etc is likely to slow down a bit. But you were getting 8 megabit whereas I'm getting 14?

That said more than 2Megabit upload would be nice. The difference between ADSL and TelstraClear cable is quite noticable when uploading. Although even with 2megabit on cable upload congests the connection a lot.

tardtasticx

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#437422 9-Feb-2011 19:46

How would you get on a trial list or something? Looked at the wholesale website and it said my house is connected to a cabinet due for VDSL2 in Feb 2011. I'd be pretty keen on doing a trial. Lol

mercutio

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#437424 9-Feb-2011 19:49

Ragnor: Just noticed 12dB noise margin in the screenshot same as ASDL. Telecom are too conservative with these settings, 9dB and 6dB are common overseas and in LLU gear for ADSL here... which allows higher sync rates.

It's a seems a shame to limit everyone's max sync sped by having a conservative noise margin because some lines are bad.

Isn't it better to have more people enabled and working well than to have higher burst rates?

After the difference between ADSL2+ and VDSL2 the noise margin is only a slight component. I'd be more concerned about congestion etc. If there are 10,000 VDSL customers connected over 1 gigabit connection, (that's 100kbit cir average per user) then you're going to want to hope that they're not only people who feel like they "need" VDSL but that it'd be "nice".

To my mind, if bandwidth is set aside just for VDSL I'm going to hope that there's some serious marketing to casual users.

And if it's $20/month extra per user. Then how many 5 gig users are going to justify it? I doubt many. Maybe some 20, lots of 60, even more 100 etc... but if it's the high bandwidth users by majority and they don't share backhaul with lower usage DSL users there could be repeats of evening backhaul congestion?

That said I doubt Snap would have 10,000 VDSL users very quickly. And maybe Telecom won't artificially limit their backhaul?

markp

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#437430 9-Feb-2011 19:53

mercutio: I'm curious... are you using a recent operating system?
Considering Snap don't seem to any transparent proxying the TCP/IP stack of your operating system would greatly effect speeds.
To my mind those speeds are terrible - and I'm thinking there is either packet loss/congestion or small TCP window sizes.

Hi Mercuito, what speeds are you referring to that are terrible, Nik's upload is 10mbit up and 30 down, and Lokeynz is 10UP/50Down - that seems pretty reasonable to me!

networkn: I am curious to know (Nick your blog is down), why Nick would only be getting 8Mbit down, as I am on ADSL2+ and getting 12Mbit down already. I would have thought that unless he was only getting really slow speeds before that his down speed would be better (Up speeds look awesome).

Nik is getting 10mbit upload and 30mbit download

lokeynz can you call our helpdesk and ask for a profile change to 17a and we will see what happens, I suspect your download will jump to something pretty extreme..

scensation - I think you must be mis-reading Nik's results? you would not be able to achieve these speeds on a 2/15 cable, or ADSL2+ have a look at Niks blog and compare the speedtest results to the ones that you posted here.

mercutio

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#437435 9-Feb-2011 19:56

markpetrie:
mercutio: I'm curious... are you using a recent operating system? Considering Snap don't seem to any transparent proxying the TCP/IP stack of your operating system would greatly effect speeds.
To my mind those speeds are terrible - and I'm thinking there is either packet loss/congestion or small TCP window sizes.

Hi Mercuito, what speeds are you referring to that are terrible, Nik's upload is 10mbit up and 30 down, and Lokeynz is 10UP/50Down - that seems pretty reasonable to me!

His Sydney speeds on his blog.
http://blog.nick.mackechnie.co.nz/post/2011/02/02/VDSL-is-here-in-New-Zealand.aspx

(quoted)

Updated

Here’s some international speed tests.

Sydney - https://www.speedtest.net/result/1138369716.png
LA - https://www.speedtest.net/result/1138371308.png
San Fran - https://www.speedtest.net/result/1138372496.png
London - https://www.speedtest.net/result/1138374575.png

I can get better download results to all of those servers myself in non-congested times. (he did his tests at 11:00 PM GMT it looks like.)

SCM

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#437441 9-Feb-2011 20:01

tardtasticx: How would you get on a trial list or something? Looked at the wholesale website and it said my house is connected to a cabinet due for VDSL2 in Feb 2011. I'd be pretty keen on doing a trial. Lol

I would love to be on the trial too however the exchange im on is also due for VDSL2 in Feb 2011, wonder how acurate that is.

Was told by Snap that im a power user (get to test things out) but have never herd anything from them.
Yet to see exactly what a power user gets to test.

Dyson

Shop now for Dyson appliances (affiliate link).

lokeynz

106 posts

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#437445 9-Feb-2011 20:04

mercutio, if you want to compare sydney speedtests
Yours 7:29pm https://www.speedtest.net/result/1149337531.png
Mine 7:35pm https://www.speedtest.net/result/1149341544.png

Here's a local one from earlier, Windows Updates were coming down at this rate this afternoon.
https://www.speedtest.net/result/1149091678.png

mercutio

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#437448 9-Feb-2011 20:05

lokeynz: mercutio, if you want to compare sydney speedtests
Yours 7:29pm https://www.speedtest.net/result/1149337531.png
Mine 7:35pm https://www.speedtest.net/result/1149341544.png

Here's a local one from earlier, Windows Updates were coming down at this rate this afternoon.
https://www.speedtest.net/result/1149091678.png

ahh ok yours looks good. t hat's more like it. so it's just his connection or computer OS / TCP/IP stack.

You're using Windows 7 I assume?

mercutio

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#437449 9-Feb-2011 20:07

Mmm my cabinet already has VDSL2, can I become a trial user?

mercutio

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#437484 9-Feb-2011 20:37

lokey.. what kind of speeds do you get to london?

cyril7

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#437493 9-Feb-2011 20:47

Lets make one thing quite clear.

VDSL2 is a distribution technology, not something else, so speeds to London on a ADSL2 connection are probably not much different to a VDSL2 one.

Wake up, smell the coffee.

Cyril

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mercutio

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#437500 9-Feb-2011 20:58

cyril7: Lets make one thing quite clear.

VDSL2 is a distribution technology, not something else, so speeds to London on a ADSL2 connection are probably not much different to a VDSL2 one.

Wake up, smell the coffee.

Cyril

well especially with long distance connections packet loss etc can make a difference with regards to speeds.

like currently i get 0.8 to 0.9% packet loss from UK to ADSL, and only 0.25% from NZ to ADSL.

it packet loss from NZ was 0% then that'd be like 0.6% packet loss.

Actually, I tried some more tests. And it just seems variable... but there's consistently less than 1% but more than 0% packet loss from various sources.

insane

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#437581 10-Feb-2011 01:47

Ragnor:
Where are Xnet and Maxnet they are usually early adopters aren't they? Wasn't Orcon taking some volunteers a few months back from GZ too.

Doing pretty much the same thing as Snap really, we're waiting for the full launch before offering it publicly as far as I know.

Last time I checked for myself a few weeks ago, the guys were happy to place a order for me, however my connection rates to my cabinet are less than ideal so the benefit for me would be next to none. The rre-qual tool suggests I'll only get (15mbps/2mbps)

Good on Snap for posting some results and getting a customer to test. Our staff who tried got around 30mbps/6 .

wjw

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#437583 10-Feb-2011 06:11

insane: (15mbps/2mbps)

How does that compare to ADSL2?

daksta

40 posts

Geek

#437754 10-Feb-2011 14:03

I pm'd mark about getting on the trial, got no response. Am connected to auckland city exchange which has vdsl2

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