I always think about uplinks when I hear about "guaranteed" bandwidths to users, fiber to the home and such. Maybe I can get 1 Gbps to the next hop but can you realistically expect the uplink to be n times 1 Gbps? Also I guess it wouldn't be economically feasible to provide uplinks that can cope with that. Can anyone expand on the technological assumptions (average saturation etc) and the economics of such ISP setups?
