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Standard User Netizen
(regular) Thu 01-Dec-11 10:14:44
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Re: What are the upload speeds of the 50MB cable product?


[re: ionic] [link to this post]
 
In reply to a post by ionic:
If you want guaranteed 5Mbps upload at all times, expect to be paying hundreds a month for a suitable service.


I dissagree.
Hundreds per month are for services with strict SLAs. This isn't what is required here.
Standard User kwikbreaks
(eat-sleep-adslguide) Thu 01-Dec-11 10:51:18
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Re: What are the upload speeds of the 50MB cable product?


[re: Netizen] [link to this post]
 
http://www.virginmediabusiness.co.uk/products__solut...

Unfortunately one thing than cable doesn't have plenty of is upstream. You may be better off looking at an SDSL solution if it's available from your phone exchange.

100Mbps is not mentioned in the traffic management charts so may be unmanaged - you'd need to ask. It has 10Mbps upstream. As the local upstream pipe is only 18Mbps shared you'd see congestion though (as would the 100 or so other poor devils on your local upstream channel)

Edited by kwikbreaks (Thu 01-Dec-11 11:00:30)

Standard User ionic
(fountain of knowledge) Thu 01-Dec-11 10:56:07
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Re: What are the upload speeds of the 50MB cable product?


[re: Netizen] [link to this post]
 
What is a guaranteed 5MBps upload if not a form of SLA?


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Standard User Netizen
(regular) Thu 01-Dec-11 12:43:22
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Re: What are the upload speeds of the 50MB cable product?


[re: ionic] [link to this post]
 
In reply to a post by ionic:
What is a guaranteed 5MBps upload if not a form of SLA?


Very true but somehow irrelevant.
Guaranteed speed link (of 5Mbit) is not the same as un-capped 5Mbit link, which what I'm after.

For example now, my 2.1 upload is not guaranteed but is surely uncapped.
Administrator MrSaffron
(staff) Thu 01-Dec-11 13:12:35
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Re: What are the upload speeds of the 50MB cable product?


[re: Netizen] [link to this post]
 
Different providers different ideas on how to avoid peak time congestion, so its take your pick really.

The technology Virgin uses tends to suffer from upstream congestion more than the ADSL providers, thus they control it more usually.

Would an uncapped service, where it swings around from 0.5Meg to 2Meg to 5Meg and back again in the period of an hour be fine?

Andrew Ferguson, [email protected]
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Netizen
(regular) Fri 02-Dec-11 10:54:47
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Re: What are the upload speeds of the 50MB cable product?


[re: MrSaffron] [link to this post]
 
In reply to a post by MrSaffron:
Different providers different ideas on how to avoid peak time congestion, so its take your pick really.

The technology Virgin uses tends to suffer from upstream congestion more than the ADSL providers, thus they control it more usually.

Would an uncapped service, where it swings around from 0.5Meg to 2Meg to 5Meg and back again in the period of an hour be fine?


Does it swing that much? Do you say this out of experience or you just describe the potential of a non-guaranteed link speed?
I thought that cable would be more stable than ADSL at least because of the fibre.
I don't have any experience with cable internet. Always had ADSL since the very early days.

Is this the case with Virgin then?

Tks
Administrator MrSaffron
(staff) Fri 02-Dec-11 13:06:24
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Re: What are the upload speeds of the 50MB cable product?


[re: Netizen] [link to this post]
 
Stable yes, but throughput is another factor.

The links from the node are fibre, it is coax to the building.

DOCSIS 3.0 gives the majority of its capacity to downstream, and upstream is often the more congested part of the virgin services.

Can't give exact values, that is down to actual users to report. I am trying to say, do not expect constant 5Mbps upload in the areas where the uplift from 1.5Meg is complete, as you are competing with others for a limited resource.

Andrew Ferguson, [email protected]
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Netizen
(regular) Fri 02-Dec-11 18:32:21
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Re: What are the upload speeds of the 50MB cable product?


[re: MrSaffron] [link to this post]
 
In reply to a post by MrSaffron:
Stable yes, but throughput is another factor.

The links from the node are fibre, it is coax to the building.

DOCSIS 3.0 gives the majority of its capacity to downstream, and upstream is often the more congested part of the virgin services.

Can't give exact values, that is down to actual users to report. I am trying to say, do not expect constant 5Mbps upload in the areas where the uplift from 1.5Meg is complete, as you are competing with others for a limited resource.


Understood.
Any ideas what is the contention ratio for the residential 50 XXL Package?
The online chat with their agent wasn't very fruitful... She didn't know what the term stands for...

By the way what are the maximum up/down speeds that the coax can provide in general?
Standard User kwikbreaks
(eat-sleep-adslguide) Fri 02-Dec-11 21:34:11
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Re: What are the upload speeds of the 50MB cable product?


[re: Netizen] [link to this post]
 
In reply to a post by Netizen:
By the way what are the maximum up/down speeds that the coax can provide in general?

For DOCSIS3
Each downstream channel can carry 50Mbps. Each upstream channel can carry 18Mbps. Currently VM bond 4 downstreams in most areas although some have 5. Upstream is currently unbonded. So a trypical local area will have 200down 18up and serve 100-200 modems. IMO this is realistically capable of supporting 10-20Mbps down 1-2Mbps up but VM sell 100down 10up on that infrastructure.

There are plans to bond 8 downstreams and 2 upstreams (so 400/36) I expect when that is done VM will be selling 200/20 and also hope that I'll have been able to move on to a FTTC product.
Standard User Chrysalis
(eat-sleep-adslguide) Mon 05-Dec-11 07:02:09
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Re: What are the upload speeds of the 50MB cable product?


[re: Netizen] [link to this post]
 
its a lottery.

Some VM areas have hardly any customers and are still given decent capacity, eg. kirby muxloe has 7 downstream channels and 3 upstreams with a fraction of the customers on my port. Whilst my port has 2 upstreams and 4 downstreams. VM has just admitted my area is very high utilised which on their measurements is probably aorund the 95-100% mark and I will probably get some relief in about 6 months time. To take me back to where I am now as there will be 6 months of growth until then wink I also have evident upstream congestion but VM have still yet to admit its too high.

In terms of throughput I expect in most cases people will get close to their max upload speeds, the more apparent issues are dodgy latency and jitter and download speeds.
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