1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 General
7 Traffic parameters and descriptors
7.1 Definitions
7.2 Requirements on traffic parameters and traffic descriptors
7.3 Traffic parameter specifications
8 IP transfer capabilities
8.1 Dedicated bandwidth transfer capability
8.2 Statistical bandwidth transfer capability
8.3 Best effort transfer capability
8.4 Delay-sensitive statistical bandwidth transfer capability
8.5 Conditionally dedicated bandwidth transfer capability
9 Functions for traffic control, congestion control, and overload
treatment
9.1 Traffic control functions
9.2 Functions for congestion control and overload treatment
10 Methods and tools for IP traffic engineering
10.1 MPLS traffic engineering
10.2 DiffServ-aware MPLS traffic engineering
Annex A – The token bucket and the generic byte rate algorithm
A.1 The token bucket
A.2 The continuous-state token bucket
A.3 The generic byte rate algorithm
A.4 The virtual scheduling byte rate algorithm
A.5 The continuous-state leaky bucket byte rate algorithm
A.6 Throughput behaviour of the GBRA algorithm
Annex B – Behaviour of two coordinated generic byte rate algorithms
Appendix I – Illustration of token bucket behaviour
I.1 Characterization of a flow with a single rate and a
single token bucket
I.2 Characterization of a flow with two rates and two
token buckets (Bp < Bs)
I.3 Characterization of a flow with two rates and two
token buckets (Bp > Bs)
Appendix II – Relation between IPTC/QoS class and IETF
IntServ/DiffServ-specification
II.1 Dedicated bandwidth IPTC associated with a suitable QoS class
II.2 Statistical bandwidth IPTC associated with a suitable QoS class
Appendix III – Guidelines for support of services using IP transfer
capabilities in a differentiated services environment
III.1 Guidelines applicable to all ITU-T Y.1221 transfer capabilities
III.2 DBW guidelines
III.3 SBW guidelines
III.4 BE guidelines
Appendix IV – Example methods for determining token-bucket parameters
Bibliography