Some ideas for charging
Idea 1: charge proportionally to worst-case (given traffic contract) effective bandwidth
- no need for measurements
- unfair for users with less traffic than the maximum allowed by their contract; incentive to increase traffic
Idea 2: charge proportionally to measured effective bandwidth
- reflects actual resource usage
- doesn’t account for reserved resources
- not simple
Idea 3: charge proportionally to empirical estimate of effective bandwidth from previous connections of the same type
- users will tend to overload network (similar to overeating in all-you-can-eat restaurants)