Requirements of a Quality of Service (QoS) Solution for Mobile IP
RFC 3583

Document Type RFC - Informational (September 2003; No errata)
Last updated 2013-03-02
Stream IETF
Formats plain text pdf htmlized bibtex
Stream WG state (None)
Document shepherd No shepherd assigned
IESG IESG state RFC 3583 (Informational)
Consensus Boilerplate Unknown
Telechat date
Responsible AD Allison Mankin
IESG note This document is a renaming of draft-ietf-mobileip-qos-requirements-03.txt (expired). That document was reviewed by IESG already and was given a go, except for lacking a Security Consideration section, which it now has (2003-06-19).
Send notices to <john.loughney@nokia.com>
Network Working Group                                    H. Chaskar, Ed.
Request for Comments: 3583                         Nokia Research Center
Category: Informational                                   September 2003

   Requirements of a Quality of Service (QoS) Solution for Mobile IP

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 (2003).  All Rights Reserved.

Abstract

   Mobile IP ensures correct routing of packets to a mobile node as the
   mobile node changes its point of attachment to the Internet.
   However, it is also required to provide proper Quality of Service
   (QoS) forwarding treatment to the mobile node's packet stream at the
   intermediate nodes in the network, so that QoS-sensitive IP services
   can be supported over Mobile IP.  This document describes
   requirements for an IP QoS mechanism for its satisfactory operation
   with Mobile IP.

Chaskar                      Informational                      [Page 1]
RFC 3583              Mobile IP QoS Requirements          September 2003

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  2
       1.1.  Problem Statement. . . . . . . . . . . . . . . . . . . .  2
       1.2.  An approach for solving QoS problem in Mobile IP . . . .  3
   2.  Terminology. . . . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  Requirements of a QoS solution for Mobile IP . . . . . . . . .  3
       3.1.  Performance requirements . . . . . . . . . . . . . . . .  4
       3.2.  Interoperability requirements. . . . . . . . . . . . . .  5
       3.3.  Miscellaneous requirements . . . . . . . . . . . . . . .  6
       3.4.  Standard requirements. . . . . . . . . . . . . . . . . .  7
   4.  Security Considerations. . . . . . . . . . . . . . . . . . . .  7
   5.  Recommendation . . . . . . . . . . . . . . . . . . . . . . . .  8
   6.  Acknowledgment . . . . . . . . . . . . . . . . . . . . . . . .  8
   7.  References . . . . . . . . . . . . . . . . . . . . . . . . . .  8
       7.1.  Normative References . . . . . . . . . . . . . . . . . .  8
       7.2.  Informative References . . . . . . . . . . . . . . . . .  8
   8.  Authors' Addresses . . . . . . . . . . . . . . . . . . . . . .  9
   9.  Full Copyright Statement . . . . . . . . . . . . . . . . . . . 10

1.  Introduction

   Mobile IP is a technology that allows a "mobile node" (MN) to change
   its point of attachment to the Internet while communicating with the
   "correspondent node" (CN) using IP.  The formal description of Mobile
   IP can be found in [1, 6].  Mobile IP primarily addresses the correct
   routing of packets to MN's current point of attachment with the
   Internet.

   It is also essential to provide proper Quality of Service (QoS)
   forwarding treatment to the packets sent by or destined to MN as they
   propagate along different routes in the network due to node mobility.
   This document will identify the requirements that Mobile IP places on
   an IP QoS mechanism.

1.1.  Problem Statement

   When an MN using Mobile IP undergoes handover from one access router
   to another, the path traversed by MN's packet stream in the network
   may change.  Such a change may be limited to a small segment of the
   end-to-end path near the extremity, or it could also have an end-to-
   end impact.  Further, the packets belonging to MN's ongoing session
   may start using a new care-of address after handover.  Hence, they
   may not be recognized by some forwarding functions in the nodes even
   along that segment of the end-to-end path that remains unaltered
   after handover.  Finally, handover may occur between the subnets that
   are under different administrative control.

Chaskar                      Informational                      [Page 2]
RFC 3583              Mobile IP QoS Requirements          September 2003

   In the light of this scenario, it is essential to establish proper
   QoS support for the MN's packet stream along the new packet path.

1.2.  An approach for solving the QoS problem in Mobile IP

   There are four important steps involved in solving the QoS problem
   for Mobile IP.  They are as follows: (1) List the requirements that
   Mobile IP places on the QoS mechanism, (2) Evaluate current IP QoS
   solutions against these requirements, (3) Decide if current solutions
   need to be extended, or if new ones need to be defined, and (4)
   Depending on the result of step 3, define new solutions or fix the
   old ones.

   Of these, the first step, i.e., the requirements step, is addressed
   in this document.  The last three steps are not dealt with here in
   detail.  However, so as to create useful insight into the Mobile IP
   QoS problem, at times this document highlights the shortcomings of
   some well known current proposals for establishing QoS support for
Show full document text