# QoS References

For more information about QoS, see the following resources:

- RFC 2474—Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers (December 1998)
- RFC 2475—An Architecture for Differentiated Services (December 1998)
- RFC 2597—Assured Forwarding PHB Group (June 1999)
- RFC 2598—An Expedited Forwarding PHB (June 1999)
- RFC 2698—A Two Rate Three Color Marker (September 1999)
- RFC 2990—Next Steps for the IP QoS Architecture (November 2000)
- RFC 2998—A Framework for Integrated Services Operation over Diffserv Networks (November 2000)
- RFC 3246—An Expedited Forwarding PHB (Per-Hop Behavior) (March 2002)
- RFC 3260—New Terminology and Clarifications for Diffserv (April 2002)
- DSL Forum Technical Report (TR)-059—DSL Evolution - Architecture Requirements for the Support of QoS-Enabled IP Services
- Floyd, S., and Jacobson, V. Random Early Detection for Congestion Avoidance. IEEE/ACM Transactions on Networking 1(4), August 1993