same difference
seriously
this has all blown up in the UK, due to the BBC's iPlayer
now "regular" people (as opposed to the tech savvy minority) are downloading huge amounts of data
and ISP's are feeling the pinch
The way ISP's advertise, a layman see's an advert for "10mbps broadband" and assumes that's all his to use as he pleases
When in fact, it's not
He's renting the use of a 10mbps pipe - 19 other people are also renting bandwidth on that same pipe
So, you have 20 people, all expecting the 10mbps they're paying for, and complaining when they're not getting the bandwidth throughput
The ISP's have oversold their bandwidth
advertising their packages as "unlimited", when in fact, they are far from unlimited
it's only now, with serious downloadable content going mainstream, that the cracks have started to appear
the way the commercial internet is arranged,
it's cheap (and reliable) for ISP's to serve their customers from their own network
(Virgin --> Virgin Customer)
but expensive to relay from 3rd party networks (BBC --> Virgin --> Virgin Customer)
So, from a cost standpoint, it makes sense to strike deals with content providers
Virgin - "Hey, BBC, pay us some money and we'll mirror your content, and serve it to our customers for you. It's cheap for us to serve our own customers, plus it'll reduce your bandwidth costs"
The money saved from serving a subscriber from the subscribers own network can go toward upgrading the "last mile" of cabling, ensuring everyone can constantly get the bandwidth they're paying for
All they're doing is setting up mirrors
As I said, I really don't see the problem, in principle
Yes, it's the ISP's fault for overselling their services in the first place
but at least they're trying to remedy it by mirroring and caching high demand content locally for their customers
I actually think it's quite sensible
Of course, there's lots of devious stuff they could do with this type of setup (inject adverts, try to dictate what content is "worthy" of mirroring, etc.) but neither content providers nor ISP's are stupid - they know their customers talk between themselves, so any potential foul play will be easily spotted
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