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 


18705 posts

Uber Geek
+1 received by user: 5351

Trusted
Lifetime subscriber

  Reply # 511468 24-Aug-2011 20:44
Send private message

camo: I'll send you some screenshots in a PM.

Mr Snotty
8073 posts

Uber Geek
+1 received by user: 4050

Moderator
Trusted
Lifetime subscriber

  Reply # 511490 24-Aug-2011 21:05
Send private message

As a rule, Unleash won't traffic manage your connection unless if you specifically ask them to. All your interwebz is passed off myriads of copper, fibre and even sometimes microwave links before going "LULZ I am on teh interwebz" - so can be anywhere that could be slowing you.

Open a ticket with their support email and they will sort something out, could just be something small - If you can sending screenshots of downloads from ftp://linux.citylink.co.nz + traceroutes to both unleash.co.nz and linux.citylink.co.nz can help out a wee bit.




 
 
 
 


4 posts

Wannabe Geek


  Reply # 511526 24-Aug-2011 22:21
Send private message

Hi everyone,

I'm Erin, MD at Unleash, and I thought I'd provide a few clarifications for what help it may provide.

Yes, we do provide VDS2 to home users, or any type of premise where the service is available.  Our focus is predominantly on commercial users, but there's a fair bit of overflow into enthusiasts and heavy users.

Our network fully supports native IPv6 everywhere except, unfortunately, on Telecom ADSL/VDSL circuits.  We're working on this and it won't be far away.  Stay tuned.

The sync speeds on an ADSL or VDSL line are the maximum attainable speeds under ideal conditions, and of course there are a lot of factors which can cause the speed to be less.  The first is simply the nature of TCP, in that a steady stream of acknowledgement packets has to be sent back to the other end of any data stream, and it doesn't take much for the occasional re-transmission to be required, which brings the speed down quite sharply.  Something like 80% throughput is probably a good target for "full speed" on a TCP stream.  Sometimes cramming lots of TCP streams together will allow an aggregated speed a littler higher than can be achieved on one stream.

The second factor is contention.  Telecom does not provide the full bandwidth from the ISP to the customer.  In fact, the default dedicated bandwidth per customer on VDSL2 is only 96kbps.  This limitation is present within Telecom's network, and also applied at the interface between Telecom and the ISP.  So at busy times, it's unlikely your real speed will always match your sync speed.

One of my colleagues has just done a test from a machine on a 100Mbps interface connected to the router your circuit terminates on, and achieved 80Mbps to linux.citylink.co.nz (this is generally not a bad indicator of maximum attainable line speeds as the servers are fast, local, and apparently well configured!).  From a faster-connected box elsewhere in our network, we can achieve ~400Mbps, so it seems there is plenty of bandwidth from us to them.  This suggests the issue in your case is likely to be between us and you in the Telecom network.  However, VDSL offers limited guarantees of performance, so unless we can turn up something misconfigured, probably this is as good as it gets and your performance reflects demand on your local exchange and associated connectivity.

On the subject of linux.citylink.co.nz, in the directory there, there should be a file called this-node-XXX, where XXX will be a three letter code corresponding to the city where the server is located.  I imagine you are looking at this-node-AKL, which is the Auckland server, but let me know if it's not.

There are also factors which limit the speed once you get beyond the ISP out onto the internet, and of course it's conceivable that an ISP's upstream connections can be saturated at times.  In the case of Unleash, this is generally not so, as our predominantly commercial customer base demands consistent performance, and we upgrade our links when they reach the point of being saturated even for very short periods of time.  We sell both dedicated and contended bandwidth, but our contended product (the stuff you get on a VDSL connection) is not very heavily contended.

Bandwidth delay product can also be a significant factor in speed, particularly where the other end of the connection is geographically far away (and thus has a high round trip time).

In short, your speed can be constrained to less than the sync speed before you even get to the ISP, within the ISP, and upstream of the ISP on the wider internet.  In your case, it looks like the issue is predominantly the first one, but we'd be happy to look into it a little further.

In response to one or two other questions, we do not have VDSL2 pricing on our website (my apologies - do feel free to get in touch for pricing), we can - as networkn has indicated - pool data plans across several connections, provide IPv4 subnets, and we can separate domestic and international data for billing purposes.

I can also comment generally on some of the VDSL2 CPE currently available.  We have used the Thompson TG789vn with good success, and while this model has a number of bugs, they are all patch-able, and the support from the distributor of these modems is top notch.  We've used the Cellpipe 7130 (iirc) which seems reliable but is less feature rich and less configurable than the Thompson, but we've not turned up the odd bugs present in the Thompson.  We're also looking into some Zyxel options and networkn I gather is using one of these.  Keen to hear your thoughts!

Cheers,

Erin

2450 posts

Uber Geek
+1 received by user: 147


  Reply # 512621 26-Aug-2011 17:51
Send private message

Nomlas: Hi everyone,

I'm Erin, MD at Unleash, and I thought I'd provide a few clarifications for what help it may provide.

Yes, we do provide VDS2 to home users, or any type of premise where the service is available.  Our focus is predominantly on commercial users, but there's a fair bit of overflow into enthusiasts and heavy users.

Our network fully supports native IPv6 everywhere except, unfortunately, on Telecom ADSL/VDSL circuits.  We're working on this and it won't be far away.  Stay tuned.
Cheers,

Erin


Err, except you're (SNAP) are claiming that you have switched IPv6 on for your *DSL users? And you're seeing ~1% uptake?


3420 posts

Uber Geek
+1 received by user: 407

Trusted

  Reply # 512639 26-Aug-2011 18:35
Send private message

here is Speed on Unleash in Auckland VDSL2:






4 posts

Wannabe Geek


  Reply # 512695 26-Aug-2011 21:06
Send private message



Err, except you're (SNAP) are claiming that you have switched IPv6 on for your *DSL users? And you're seeing ~1% uptake?



I'm afraid Unleash and Snap are entirely different companies (and networks - not so much as a bit of Cat6 in common) in the same way that Orcon & Telecom are, or IBM & Apple.  Unleash does not presently support native IPv6 on ADSL/VDSL connections, although we do offer 6to4 and Teredo, and tunnels.  Native IPv6 will be coming to ADSL/VDSL very soon, and is already supported everywhere else in our network.

At a quick scan of a chunk of our customer list (in no way representative) we might have about 5% of our non-DSL customer base with native IPv6 connectivity.  IPv6 still has some way to go to reach world domination!

Zeon -> your Auckland VDSL connection terminates at one of our POPs in Auckland, so if anything you may find it's a nose faster testing to an Auckland server, although we do have plenty of bandwidth from there on down to Christchurch. :)  I think Speedtest will be directing you to Christchurch as the preferred server because the whois data for your (our) IP lists our physical address as Christchurch.  I imagine the difference is pretty small however.

Cheers,

Erin

187 posts

Master Geek
+1 received by user: 10

Trusted

  Reply # 512718 26-Aug-2011 21:39
Send private message

Interesting I have VDSL as well in Auckland and cabinet is on my propity and these are the speed results i get. I am using a cellpipe modem but don't think to much of them.


[URL=https://www.speedtest.net][IMG]https://www.speedtest.net/result/1451028812.png[/IMG][/URL]


[URL=https://www.speedtest.net][IMG]https://www.speedtest.net/result/1451031844.png[/IMG][/URL]

[URL=https://www.speedtest.net][IMG]https://www.speedtest.net/result/1451032939.png[/IMG][/URL]






Anything I suggest or say is my own thoughts and not provided by anyone else unless stated

2450 posts

Uber Geek
+1 received by user: 147


  Reply # 512720 26-Aug-2011 21:43
Send private message

Nomlas:


Err, except you're (SNAP) are claiming that you have switched IPv6 on for your *DSL users? And you're seeing ~1% uptake?



I'm afraid Unleash and Snap are entirely different companies (and networks - not so much as a bit of Cat6 in common) in the same way that Orcon & Telecom are, or IBM & Apple.  Unleash does not presently support native IPv6 on ADSL/VDSL connections, although we do offer 6to4 and Teredo, and tunnels.  Native IPv6 will be coming to ADSL/VDSL very soon, and is already supported everywhere else in our network.


Oh! My mistake, I've gotten you guys confused..

Why do you say you can't do IPv6 on telecom/chorus wholesale when ISPs like XNet and SNAP can?


4 posts

Wannabe Geek


  Reply # 513354 29-Aug-2011 11:05
Send private message



Why do you say you can't do IPv6 on telecom/chorus wholesale when ISPs like XNet and SNAP can?




It's not so much that we can't do it, but that we've prioritised other features and improvements ahead of it.  IPv6 has been natively available in our data centres for many years, and we offer it on all layer 2 circuits which connect to these data centres and our other POPs directly.  We were also early to offer 6to4 and Teredo, and for a long time provided the former publicly at APE.  However, ADSL is a slightly more complex environment to deliver IPv6 in, and demand is almost non-existent.  We'll be rolling it out soon.

Cheers,

Erin


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 »

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:



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.

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