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Topic # 68163 15-Sep-2010 21:41
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so, my area was completely untouched by the earthquake, but ever since the earthquake my connection speed has been SO unstable. sometimes it goes normal speed (the one in my signature) and sometimes it goes as slow as 3kbps, thats slower than dialup!! D;

my modem stats are as follows;





Line Mode
ADSL2+ 
Line State
Show Time  


Line Power State
L0 
Line Up Time
00:00:55:38 


Line Coding
Trellis On 
Line Up Count









Statistics
Downstream
Upstream


Line Rate
20870 Kbps
852 Kbps


Attainable Line Rate
23648 Kbps
848 Kbps


Noise Margin
11.6 dB
12.3 dB


Line Attenuation
8.5 dB
3.0 dB


Output Power
18.5 dBm
12.4 dBm



 
 i called slingshot and they said they couldn't put me through to tech because the waiting time was longer than the call centre would be open for, so ill ring tomorrow, but he did suggest that our modem could have past its use by date, we've had it since Telecom closed the go large plan.

please and thankyou :) 





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111 posts

Master Geek


  Reply # 380384 15-Sep-2010 23:09
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think its nationally i was told its because of the all you can eat they're still doing 'stuff' with that and sorting out things for customers dunno how long they're gonna use that excuse for

all week so far for me ALL websites especially this site , slingshot and gmail have taken forever too load its taken 2 days just to read posts on this site due to it only loading today (*now) everything is soo slow even when i try to use dial up it disconnects after 3minutes but it still seems to be faster than my broadband for the time being anyway pretty sure its not just Christchurch cause im in northland



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Uber Geek
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  Reply # 380405 16-Sep-2010 00:23
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oh, well they want me to ring them back tommorrow and do isolation tests and line tests and god knows what else.

oh well. ill get there i guess hahaha





 
 
 
 


Mr Snotty
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  Reply # 380407 16-Sep-2010 00:38
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From what I see here, your modem is connected quite well to the DSLAM. I would just hold tight, even though your exchange may have been untouched there is still quite a bit of fibre on the network that may have been cut, or your ISP may be having problems.

Think of the network like a star, each node is connected to another on the network, if one node goes down, or the link between the nodes get cut, then it has to go through a different path to reach it's destination. That path could be congested or slightly down too.

It's hard to say what's going on with the network here in Christchurch, I am having no problems here in City Centre and also Riccarton but I have heard some people are experiencing very slow speeds at the moment, my cousins in Halswall are also having some issues too.






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  Reply # 380411 16-Sep-2010 00:42
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yeah, and the guy did say chorus were focusing on the voice first not the broadband. so yeah :/ you'd think they can do both at once but hey.





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Master Geek


  Reply # 380575 16-Sep-2010 11:43
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I also have this issue. Unfortunately there is nothing that can be done to resolve it unless Telecom decide to raise their 45kbps restriction per subscriber for UBA backhaul.
I was told by a slingshot rep that I'd probably have to look for a new provider :(



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  Reply # 380634 16-Sep-2010 13:29
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what do you mean by a restriction?

45kbps seems awfuly slow, since i and lots of other people in the country get speeds of 18Mbps?





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Master Geek


  Reply # 380649 16-Sep-2010 13:55
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Well from what I've been told, Telecom has begun enforcing their limit of 45kbps per subscriber for backhaul on UBA as of the start of this month. If anyone more knowledgable knows any different, please correct me.

Now, it's not publically known that this is how it's dimensioned .. that is until the CEO of Callplus made it public knowledge on this post on the slingshot forums: http://forums.slingshot.co.nz/viewtopic.php?f=2&t=3666&start=0

He said: "1. Telecom currently dimensions their Unbundled Bitstream Access (UBA) network at 45kbps per subscriber. This is currently in place for all UBA customers regardless of the service provider that is selling the service, and exists on the broadband service we provide today. We do not believe Telecom should dimension traffic at this rate. This constraint does not apply to customers on the Slingshot Better Network – as a result it is a better service. We are continuing to roll out our Better Network nationwide, so more customers can enjoy the benefits of a better network."

What this means is that our connection from our cabinet or exchange into slingshots core is limited to a set amount of bandwidth equal to the number of subscribers in the area multiplied by 45kbps. The reason you can get more than 45kbps at a time is due to other customers not using their share at that point in time. My understanding of the backhaul is that it is divided into regions.

Unfortunately for us Christchurch customers, I believe there is now more demand than there is backhaul available. To fix this, either we need to get a lot of grandmas etc (low users) to sign up, Telecom Wholesale need to raise the limit, Telecom Wholesale need to allow ISPs to purchase additional backhaul for UBA, Slingshot, Orcon or Compass need to unbundle our exchanges and cabinets and put in their own LLU gear or finally, we change to a different provider that has less contention.

Last month I was able to get my line speeds (>23Mbit as I have a cabinet at my door) during the 8AM - 4PM Mon - Fri period. Now unfortunately I can't. Doing speedtests to the slingshot speedtest (http://speedtest.slingshot.co.nz/) or downloading from their ftp (http://ftp.slingshot.co.nz/) will result in low speeds at times. Lowest I've had was 20kB/s from the slingshot ftp (approximately 1% of my line speed).

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Ultimate Geek
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  Reply # 380662 16-Sep-2010 14:20
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PhantomNZ: Well from what I've been told, Telecom has begun enforcing their limit of 45kbps per subscriber for backhaul on UBA as of the start of this month. If anyone more knowledgable knows any different, please correct me.

Now, it's not publically known that this is how it's dimensioned .. that is until the CEO of Callplus made it public knowledge on this post on the slingshot forums: http://forums.slingshot.co.nz/viewtopic.php?f=2&t=3666&start=0

He said: "1. Telecom currently dimensions their Unbundled Bitstream Access (UBA) network at 45kbps per subscriber. This is currently in place for all UBA customers regardless of the service provider that is selling the service, and exists on the broadband service we provide today. We do not believe Telecom should dimension traffic at this rate. This constraint does not apply to customers on the Slingshot Better Network – as a result it is a better service. We are continuing to roll out our Better Network nationwide, so more customers can enjoy the benefits of a better network."

What this means is that our connection from our cabinet or exchange into slingshots core is limited to a set amount of bandwidth equal to the number of subscribers in the area multiplied by 45kbps. The reason you can get more than 45kbps at a time is due to other customers not using their share at that point in time. My understanding of the backhaul is that it is divided into regions.

Unfortunately for us Christchurch customers, I believe there is now more demand than there is backhaul available. To fix this, either we need to get a lot of grandmas etc (low users) to sign up, Telecom Wholesale need to raise the limit, Telecom Wholesale need to allow ISPs to purchase additional backhaul for UBA, Slingshot, Orcon or Compass need to unbundle our exchanges and cabinets and put in their own LLU gear or finally, we change to a different provider that has less contention.

Last month I was able to get my line speeds (>23Mbit as I have a cabinet at my door) during the 8AM - 4PM Mon - Fri period. Now unfortunately I can't. Doing speedtests to the slingshot speedtest (http://speedtest.slingshot.co.nz/) or downloading from their ftp (http://ftp.slingshot.co.nz/) will result in low speeds at times. Lowest I've had was 20kB/s from the slingshot ftp (approximately 1% of my line speed).


The limit was raised from 32Kbs to 45Kbs, so what you are actually saying is increasing the previous limit has made things slower.

Bear in mind that the CEO of Callplus has an agenda in what he's writing there and how he writes it... I wonder if he'd be willing to publish network stats showing an abundance of capacity on Slingshots own backhaul connections past the the Wholesale one, including International transit... and if he'd be happy for the UBA input price to increase if Wholesale increased the SLA's.

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Master Geek


  Reply # 380668 16-Sep-2010 14:27
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Cymro:
The limit was raised from 32Kbs to 45Kbs, so what you are actually saying is increasing the previous limit has made things slower.

Bear in mind that the CEO of Callplus has an agenda in what he's writing there and how he writes it... I wonder if he'd be willing to publish network stats showing an abundance of capacity on Slingshots own backhaul connections past the the Wholesale one, including International transit... and if he'd be happy for the UBA input price to increase if Wholesale increased the SLA's.

Yup I understand that. Really I'm just saying what I've been able to find out so far. If someone can come through with actual proof or back up what I've said that would be good.

I have been told from an independant source that Telecom Wholesale has only just started enforcing the limit and that on UBS there was the ability to expand backhaul. Are you able to confirm that?

I completely understand what you're saying. However, what I'm saying kind of checks out when I can't access slingshots core.
I also assume that the demand for backhaul has increased significantly over the past few weeks since slingshot introduced their All You Can Eat plan which may explain why it was fine on 32kbps but not on 45kbps.

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  Reply # 380684 16-Sep-2010 15:04
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PhantomNZ:
Cymro:
The limit was raised from 32Kbs to 45Kbs, so what you are actually saying is increasing the previous limit has made things slower.

Bear in mind that the CEO of Callplus has an agenda in what he's writing there and how he writes it... I wonder if he'd be willing to publish network stats showing an abundance of capacity on Slingshots own backhaul connections past the the Wholesale one, including International transit... and if he'd be happy for the UBA input price to increase if Wholesale increased the SLA's.

Yup I understand that. Really I'm just saying what I've been able to find out so far. If someone can come through with actual proof or back up what I've said that would be good.

I have been told from an independent source that Telecom Wholesale has only just started enforcing the limit and that on UBS there was the ability to expand backhaul. Are you able to confirm that?

I completely understand what you're saying. However, what I'm saying kind of checks out when I can't access slingshots core.
I also assume that the demand for backhaul has increased significantly over the past few weeks since slingshot introduced their All You Can Eat plan which may explain why it was fine on 32kbps but not on 45kbps.


I think UBS let ISP's soak up any excess capacity in their handover that wasn't being used, I can see why they might have had to start enforcing the dimensions now though, otherwise smaller ISP's might get swamped when the larger ones suck up more bandwidth (of course the obvious answer is to provide more guaranteed bandwidth to everyone).

Another reason might be that the ATM network is starting to creak and hit capacity, we all know that traffic volumes have gone up a huge amount with more streaming media in the last few years, let alone the proliferation of file-sharing and one-click sites. Maybe ISP's need to be looking at all their options and consuming E(nhanced)UBA rather than just B(asic)UBA, EUBA is delivered to ISP's over the Next Gen Ethernet links that Wholesale has built the past few years.

Last reason is purely commercial self-interest, you might offer people very large or unlimited data caps at a good price, but as an ISP you know for a fact that will cause more congestion on your links, from a capacity point of view you know that each customer is only going to add 45Kbps to the pipe, but if you just sold them an AYCE plan, well, they are likely going to be flooding the pipe with more than 45kbps 24/7, which just sucked up more of the available bandwidth.

For Christchurch specific slowdowns, I'd be amazed if there wasn't a planned handover upgrade in-progress or if Slingshot have capacity issues out of the back end of their own Christchurch LNS's into their core, which would explain your issues.



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  Reply # 380775 16-Sep-2010 17:21
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im not on the unlimited plan, by the way.

if that helps. 





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Master Geek


  Reply # 380779 16-Sep-2010 17:28
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Neither am I.

Do you get good and consistant results on the slingshot speedtest? (http://speedtest.slingshot.co.nz/)

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  Reply # 380839 16-Sep-2010 19:42
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Maybe CallPlus would like to publically post and explain what their backhaul provisioning is..


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  Reply # 381486 17-Sep-2010 23:54
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Slinghsot slow me down heaps too, and I'm on NBT (through a Vodafone DSLAM at MDR). I think they just don't want to buy enough international bandwidth.

I'm sure that if traffic has to be re-routed around fibre breaks in Chch, they may not have much bandwidth to go around so the 45kbps guarantee for UBA might prevent heavy users flooding the congested links. I still dont think their should be aggregated limits on the handover links, Telecom should just sell bandwidth to each region as was the original plan when 256k UBS was first promoted. A few issues of "Wholesale Informer" later (and withdrawal of TelstraClear's ComCom backhaul request) it was plain that unbundled backhaul would never happen. All broadband since then has been restricted by whatever backhaul Telecom chooses to provide, and ComCom didn't have the power to make a determination without an ISP putting their head/funds above the parapet.




Qualified in business, certified in fibre, stuck in copper, have to keep going  ^_^

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Geek


  Reply # 384154 24-Sep-2010 20:05
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Slingshot is low for me also and I live in CHCH.

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