too cheap to meter?
if not ‘all you can eat’ ? dilemma
- need empty queues for real-time multimedia
- elastic data always fills queues
- customers need to rank their usage by value
cost of charging ? granularity mismatch
- service: packet
- charges: SLA / subscription / reservation
low utilisation ? incentive for
- customer to waste resources (e.g. robots)
- provider to over-book resources
but worse - complexity:
- customer state in network