Asad Ali
Very Senior Member
I suspect a lot of ISPs have edge caches for these two networks. In XBox's case don't they use Akamai?
They do use Edge networks but even those have limited capacity and after certain threshold they'll pass the traffic over the network. So you either have to increase the load bearing capacity for these nodes or cap the traffic so they remain within the capacity threshold.
That's exactly why they're capping Netflix/YouTube traffic because their Edge nodes are not sustaining the load and passing traffic over the network.