[Retric]

A sensible rule would be 98th percentile so 98% of the time every customer can get X bandwidth. This allows for ~10 hours of downtime or congestion a month. They can still over provision, they just can't outright lie.

[diamondlovesyou]

Except they don't control external hosts. Cox Comm doesn't control that person hosting a server on AOL dialup.

[lagadu]

No, but they can guarantee a certain speed within the borders of their network.