QBone Architecture (10km view)

• IETF “Diff” (EF PHB) + QBone “Serv” (QPS)

• QBone Premium Service

  • Idea: converge on Jacobson’s VLL “Premium” service
  • Well-defined SLS:
    • Peak rate R & “Service MTU” M implying a token bucket meter
    • Near-zero loss
    • Low jitter
      • Delay variation due to queuing effects should be no greater than the packet transmission time of a service MTU sized packet
      • All bets are off if the reserved interdomain route flaps

• Plus important value-adds:

  • Integrated measurement/dissemination infrastructure
  • Experimentation with pre-standards inter-domain bandwidth brokering and signaling

Previous slide

Next slide

Back to first slide

View graphic version