RFC 2990 (rfc2990) - Page 1 of 24

Next Steps for the IP QoS Architecture

Network Working Group                                         G. Huston
Request for Comments: 2990                                      Telstra
Category: Informational                                   November 2000


                Next Steps for the IP QoS Architecture

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   While there has been significant progress in the definition of
   Quality of Service (QoS) architectures for internet networks, there
   are a number of aspects of QoS that appear to need further
   elaboration as they relate to translating a set of tools into a
   coherent platform for end-to-end service delivery.  This document
   highlights the outstanding architectural issues relating to the
   deployment and use of QoS mechanisms within internet networks, noting
   those areas where further standards work may assist with the
   deployment of QoS internets.

   This document is the outcome of a collaborative exercise on the part
   of the Internet Architecture Board.

Table of Contents

    1. Introduction ...........................................   2
    2. State and Stateless QoS ................................   4
    3. Next Steps for QoS Architectures .......................   6
       3.1 QoS-Enabled Applications ...........................   7
       3.2 The Service Environment ............................   9
       3.3 QoS Discovery ......................................  10
       3.4 QoS Routing and Resource Management ................  10
       3.5 TCP and QoS ........................................  11
       3.6 Per-Flow States and Per-Packet classifiers .........  13
       3.7 The Service Set ....................................  14
       3.8 Measuring Service Delivery .........................  14
       3.9 QoS Accounting .....................................  15
       3.10 QoS Deployment Diversity ..........................  16
       3.11 QoS Inter-Domain signaling ........................  17



Huston                       Informational