Don't forget that in some cases, there are ISP-local cache boxes... i.e. the "Youtube Servers" to which you refer may live _at_ the ISP.
On Mon, Nov 19, 2012 at 7:19 AM, Nick Olsen <n...@flhsi.com> wrote: > It's all about if the bandwidth is there to use. > > I'm sure every youtube caching server has a connection which exceeds > 4Mb/s. > > How does a faster connection help? It allows the video to fill the buffer > faster. Allowing for smoother playback on less bandwidth consistent > circuits. Do you need it really if your video source is under 4Mb/s? In a > perfect scenario, No. > > Now, That's youtube. Using Netflix as an example. > > I can start streaming a movie. And it'll pull 50-60Mb/s for about 20 > seconds, And it's playing HD quality almost immediately. Where on a slower > connection it may not switch to HD until its filled its buffer more. > > Nick Olsen > Network Operations (855) FLSPEED x106 > > ---------------------------------------- > From: "Glen Kent" <glen.k...@gmail.com> > Sent: Monday, November 19, 2012 10:04 AM > To: "nanog@nanog.org" <nanog@nanog.org> > Subject: 25Mbps vs 4 Mbps > > Hi, > > The service provider(s) pipe that takes all web traffic from my laptop to > the central servers (assume youtube) remain same whether i take a 4Mbps or > a 25Mbps connection from my service provider. This means that the internet > connection that i take from my service provider only affects the last mile > -- from my home network to my service providers first access router. Given > this, would one really see a 6 times improvement in a 25Mbps connection > over a 4Mbps connection? > > I assume that the service providers rate limit the traffic much > more aggressively in a 4Mbps connection. But this would only matter if the > traffic from my youtube server is greater than 4Mbps, which i suspect > would > be the case. > > The question then is that how does going for a higher BW connection from > the service provider help? > > Glen > -- Kyle Creyts Information Assurance Professional BSidesDetroit Organizer
