[158130] in North American Network Operators' Group
Re: 25Mbps vs 4 Mbps
daemon@ATHENA.MIT.EDU (Kyle Creyts)
Wed Nov 21 16:46:14 2012
In-Reply-To: <69a3f799$7b5e5fd7$3cb06967$@flhsi.com>
Date: Wed, 21 Nov 2012 13:45:49 -0800
From: Kyle Creyts <kyle.creyts@gmail.com>
To: nick@flhsi.com
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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 <nick@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.kent@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
