Re: 10 meg unlimited?
 

Its more than a rumour;)

Re: 10 meg unlimited?
 

Well, for those of you that doubt my credentials when it comes to all things ntl, I suggest you take a look at this website: http://www.allot.com/pages/products_...?intGlobalId=2 & then bookmark this thread for future reference.

Re: 10 meg unlimited?
 

[sarcasm mode on]Cache Enforcer & traffic shaping - ooh goody[sarcasm mode off]
It doesn't exactly fill me with confidence that clicking on several links on that page gives internal server errors.

Re: 10 meg unlimited?
 

That's more likely to be ntl's proxies causing that Ian.

Re: 10 meg unlimited?
 

The link works perfectly here, on NTL.

What's the purpose of this link though? It's a company that makes traffic shaping gear. I could have got ten others through google.

Edit: No, some of the links are dead.

Re: 10 meg unlimited?
 

The only purpose of any comment from Neil containing ntl is to be malicious.

I have never seen a proxy incorrectly return an Error 500 before...

Re: 10 meg unlimited?
 

oops your source ok with this info been release I hope.

---------- Post added at 21:16 ---------- Previous post was at 21:14 ----------

Nope but I have an error 500 been generated as a result of the proxy.

Re: 10 meg unlimited?
 

:rolleyes:

Re: 10 meg unlimited?
 

Absolutely-it was cleared with them yesterday just before I posted it.

No need for ":rolleyes:" JTWN, traffic shaping from ntl is happening-fact.

I'm sorry you don't like the fact that you were wrong, & you think that because I posted it it must be made up/biased/whatever, but it's not so I suggest you get over it (& also yourself while you're at it)

Re: 10 meg unlimited?
 

i can only assume your talking about a HDTV rip of a US tv show (lost / desperate housewives / my name is earl etc)

Your right it is no where near 10gig - what your getting is a rip. your looking at 350 meg (thats just scene rules it could if they had the time be a lot smaller) for a 40 min show. next up you can get a HR HDTV rip with ac3 sound at double the size (700meg) after that you start getting different res rips (720p etc @ 1.4gb) but thats still a rip, checking a nfo release site i can see an episode of "lost" with the following spec
Resolution:..................1280x720
Sound:................DolbyDigital5.1
Size:.............4.324.076.328.byte
Time:...............................42:49
4gig for a rip :) still just a rip
- the Transport Stream is big....

Re: 10 meg unlimited?
 

'Real' HDTV you're talking 19.4Mbps and upwards (apparently).

The above program is about 13.5Mbps.

HOWEVER there's a fair chance that that is infact what it was broadcast at over cable, 2 x 13.5Mbps channels fit snugly into a single 64QAM 6MHz cable channel.

The main concern for the US networks is making as efficient as possible use of their bandwidth while supplying HD-like quality. Probably be the same here and I'd imagine that 19Mbps channels won't be that common. 2 of them will eat a 256QAM 6MHz channel totally.

They do fit nicely into the 38Mbps or so that a 64QAM 8MHz channel supplies, BUT ntl will almost certainly be running on 51Mbps 256QAM channels on the TV (already do on the VOD I believe) so 17Mbps to get 3 channels into that 51Mbps is more likely, if not 12.5Mbps to squeeze 4 in there.

A big difference between HD and SD as far as *most* cable operators go is that with SD they can use ubr - unspecified bitrate, so they can do things like putting 10 channels into a 38Mbps channel and using statistical multiplexing so that they all receive variable bandwidth depending on how demanding their needs are for bandwidth.

While Eastenders is a demanding program to watch its' bitrate needs are relatively minor compared to live footie for example. Doing it this was you assume that not every channel will need its' full bandwidth all the time, just as you don't supply 100% of the bandwidth that every cable modem needs so you don't supply 100% of the bandwidth all the channels need on grounds that not every channel will need 100% all the time. The issue there though lies when that multiplex combined requires more bandwidth than it's allocated, for example when the news is on and it's the sport reports that stream will be needing more bandwidth and might tip the whole multiplex over its' capacity. If ntl do use this it may explain why you see very occasional picture issues. (BTW A multiplex is a series of TV channels that are combined into a single data stream, just as your cable modem receives a constant data stream and picks out the bits it needs so does your set top box).

HDTV is far less tolerant of this so virtually requires CBR, constant bit rate. That 13.5 / 19.4Mbps has to be nailed up, meaning a lot less efficient use of spectrum. No doubt this is something being tackled by Scientific Atlanta, Motorola et al in a drive for more efficient use of cable spectrums.

Anyway apologies I've just dragged it all hideously off topic with this :)

Re: 10 meg unlimited?
 

Will that traffic shaping affect people on the slower 1 and 2mbit connections or are NTL going to move everyone onto the faster speeds and shape them all?

Re: 10 meg unlimited?
 

I'm awaiting some more info, but I suspect it will be all the products, not just the 10 meg.

Re: 10 meg unlimited?
 

Cant tell if that was Mr Burns or Mr Brittas! :p:

Re: 10 meg unlimited?
 

Well thats nice but I'd just like you to know I can still dl at 10mbit or near enough pretty much anytime I want.

The key word being like. I was watching a performance at the grammys and the bitrate for the most part was in single figures. Black levels were pretty high but the difference between that and other broadcasters (Euro1080i) / demos was glaringly obvious. I do believe that US cablecos do broadcast at VBR, as when at the end there was panning of the audience it went up to 14,15mbps, but that was probably just to stop it turning into a blockfest. Its kind of depressing when Live 8 was broadcast at a higher bitrate on an SD transmission though...

HD in the UK is definately going to have to be broadcast at a much higher quality in the US; they aren't used to the decent quality SD we are. At 13.5mbps it just isn't going to cut it so people are going to switch in droves. Its not made easier with ntl dropping the MPEG-4 box though.