ntl Confirms 10Mb Broadband Speed Increase - Page 74

Chrysalis · 05-10-2005, 00:34

speed isn't everything and the delay is good news for me.

Myron · 05-10-2005, 00:48

Personally, I would prefer on-the-fly speed configuration. For instance, maybe for one day in the entire month I may need 10Mb, but notmally 2Mb works fine for me.

jtwn · 05-10-2005, 16:11

Does anybody know the capacity between the hubsite and headend, is it just 2.5gbit or multiple of these or something different? Thanq

Chrysalis · 06-10-2005, 21:20

The bit where you share with local users is 38mbit, or do you mean between that and the ntl central routers?

jtwn · 06-10-2005, 23:02

Yes, between the ubrs and core network.

dragon · 06-10-2005, 23:21

Quote:

Originally Posted by Chrysalis

The bit where you share with local users is 38mbit, or do you mean between that and the ntl central routers?

IN which case are NTL going to use some type of QOS/Load balanceing? so that say 3 - 4 users down saturate the whole pipe making it slow for everyone else.

I'm not sure if what im being clear enough but what im trying to say is its better that everyone gets say 300kb/s downloads than someone getting 1mbyte/s and everyone else getting stuck with 10kb/s or something during a busy period.

then of course when there is less load on the pipe everyones speed increases equally...

SMHarman · 06-10-2005, 23:30

Quote:

Originally Posted by dragon

IN which case are NTL going to use some type of QOS/Load balanceing? so that say 3 - 4 users down saturate the whole pipe making it slow for everyone else.

I'm not sure if what im being clear enough but what im trying to say is its better that everyone gets say 300kb/s downloads than someone getting 1mbyte/s and everyone else getting stuck with 10kb/s or something during a busy period.

then of course when there is less load on the pipe everyones speed increases equally...

It depends whether the pipe is like a motorway where the traffic eventually fills the pipe to saturation or whether the traffic is already at maxumum, or not likely to increase dramatically.

See 10 users all trying to download 900kbs on a 300kbs line, each will take 3 seconds to download it so in total all 10 downloads will occur concurrently and take 3 seconds

the same 10 users on 10Mb, only 4 can do that at a time, but now the 900k file will take 0.1 of a second, then the next four can do that taking another 0.1 of a second and finally the last 2 at 0.1 of a second. So the 2 that were last in this theoretical queue had to wait 0.3 of a second 0.2 due to contention and 0.1 for the download, however, that is still 2.7 seconds quicker than if they were all on 300k.

Also servers often are not connected to the internet by 10Mb pipes, but maybe 2Mb, so if these 10 users on 10Mb all want to download something at the same time, but find themselves connected to 2Mb servers, or servers that will only offer 2Mb to each user then between them they can only utilise 20Mb of the 38Mb for the downloading.

I'm sure the cablecos have better modeling / stats than the examples I have just given, but hopefully that should show why things should not automatically get slowere for everyone and that the local UBR should not grind to a halt.

dragon · 06-10-2005, 23:52

Quote:

Originally Posted by SMHarman

It depends whether the pipe is like a motorway where the traffic eventually fills the pipe to saturation or whether the traffic is already at maxumum, or not likely to increase dramatically.

See 10 users all trying to download 900kbs on a 300kbs line, each will take 3 seconds to download it so in total all 10 downloads will occur concurrently and take 3 seconds

the same 10 users on 10Mb, only 4 can do that at a time, but now the 900k file will take 0.1 of a second, then the next four can do that taking another 0.1 of a second and finally the last 2 at 0.1 of a second. So the 2 that were last in this theoretical queue had to wait 0.3 of a second 0.2 due to contention and 0.1 for the download, however, that is still 2.7 seconds quicker than if they were all on 300k.

Also servers often are not connected to the internet by 10Mb pipes, but maybe 2Mb, so if these 10 users on 10Mb all want to download something at the same time, but find themselves connected to 2Mb servers, or servers that will only offer 2Mb to each user then between them they can only utilise 20Mb of the 38Mb for the downloading.

I'm sure the cablecos have better modeling / stats than the examples I have just given, but hopefully that should show why things should not automatically get slowere for everyone and that the local UBR should not grind to a halt.

What im trying to say is the system needs some sort of safeguards inplace to stop 3-4 users saturating the pipe and slowing things down to a crawl for everyone else. How such a thing would be implimented I dont care but i just believe there should be a minimum quality of service that one should expect.

etccarmageddon · 07-10-2005, 08:29

Quote:

Originally Posted by dragon

What im trying to say is the system needs some sort of safeguards inplace to stop 3-4 users saturating the pipe and slowing things down to a crawl for everyone else. How such a thing would be implimented I dont care but i just believe there should be a minimum quality of service that one should expect.

that's where the 30gig or whatever monthly 'allowance' comes in. if they are downloading constantly with loads of connections to p2p or whatever so that they are downloading at a constant 10meg then once they exceed their monthly allowance, action will probably be taken against them - either they get their speed reduced or they are asked to leave or they are charged a premium to continue this level of useage.

stephen5131 · 07-10-2005, 09:21

Not wanting to start anything, but a friend (yeah I know what your thinking) was on 3Mb and says (around 2 weeks ago) that he's on 10Mb now. Says his upload is around the 300-380. He reckons he only gets about 5Mb speeds from torrents (not a great yardstick, I know) but that his online gaming has improved no-end.

I haven't seen any mention on these 70odd pages of anyone that actually has it. Anyway, can anyone confirm? (He lives in Ardenlee Avenue, BT6 if it helps!)

He said that ntl delivered him a new modem. I'll see if I can get more details.

I believe him, I've no reason not to; anyway, thought someone would be interested. I'm also wondering, as I'm in Belfast too, if i upgraded to the 3Mb tier would I get the 10?

07-10-2005, 10:21

Quote:

Originally Posted by mofo5131

Not wanting to start anything, but a friend (yeah I know what your thinking) was on 3Mb and says (around 2 weeks ago) that he's on 10Mb now. Says his upload is around the 300-380. He reckons he only gets about 5Mb speeds from torrents (not a great yardstick, I know) but that his online gaming has improved no-end.

I haven't seen any mention on these 70odd pages of anyone that actually has it. Anyway, can anyone confirm? (He lives in Ardenlee Avenue, BT6 if it helps!)

He said that ntl delivered him a new modem. I'll see if I can get more details.

I believe him, I've no reason not to; anyway, thought someone would be interested. I'm also wondering, as I'm in Belfast too, if i upgraded to the 3Mb tier would I get the 10?

As far as i am aware there are NO customers on 10 meg with NTL at this time.

dayloon · 07-10-2005, 10:52

Quote:

Originally Posted by mofo5131

Not wanting to start anything, but a friend (yeah I know what your thinking) was on 3Mb and says (around 2 weeks ago) that he's on 10Mb now. Says his upload is around the 300-380. He reckons he only gets about 5Mb speeds from torrents (not a great yardstick, I know) but that his online gaming has improved no-end.

I haven't seen any mention on these 70odd pages of anyone that actually has it. Anyway, can anyone confirm? (He lives in Ardenlee Avenue, BT6 if it helps!)

He said that ntl delivered him a new modem. I'll see if I can get more details.

I believe him, I've no reason not to; anyway, thought someone would be interested. I'm also wondering, as I'm in Belfast too, if i upgraded to the 3Mb tier would I get the 10?

He's lying. Nobody has got 10mb with NTL yet.

Ignition · 07-10-2005, 11:43

Shame that the speed upgrade will have no impact at all on gaming, and that your buddy is telling fibs

etccarmageddon · 07-10-2005, 12:26

perhaps he's been accidentally sent a new config file during NTLs tests?

orangebird · 07-10-2005, 12:32

I truly do not understand some people. What's the biggie about lying about your BB speed?