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Authentication, Authorization and Accounting (AAA) Transport Profile (RFC3539)

IP.com Disclosure Number: IPCOM000014685D
Original Publication Date: 2003-Jun-01
Included in the Prior Art Database: 2003-Jun-20
Document File: 42 page(s) / 93K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

B. Aboba: AUTHOR [+2]

Abstract

This document discusses transport issues that arise within protocols for Authentication, Authorization and Accounting (AAA). It also provides recommendations on the use of transport by AAA protocols. This includes usage of standards-track RFCs as well as experimental proposals.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 3% of the total text.

Network Working Group� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � B. Aboba

Request for Comments: 3539� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Microsoft

Category: Standards Track� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � J. Wood

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Sun Microsystems, Inc.

� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � June 2003

� Authentication, Authorization and Accounting (AAA) Transport Profile

Status of this Memo

� � This document specifies an Internet standards track protocol for the

� � Internet community, and requests discussion and suggestions for

� � improvements.� Please refer to the current edition of the "Internet

� � Official Protocol Standards" (STD 1) for the standardization state

� � and status of this protocol.� Distribution of this memo is unlimited.

Copyright Notice

� � Copyright (C) The Internet Society (2003).� All Rights Reserved.

Abstract

� � This document discusses transport issues that arise within protocols

� � for Authentication, Authorization and Accounting (AAA).� It also

� � provides recommendations on the use of transport by AAA protocols.

� � This includes usage of standards-track RFCs as well as experimental

� � proposals.

Table of Contents

� � 1.� Introduction . . . . . . . . . . . . . . . . . . . . . . . . .� 2

� � � � � � 1.1.� Requirements Language. . . . . . . . . . . . . . . . . .� 2

� � � � � � 1.2.� Terminology. . . . . . . . . . . . . . . . . . . . . . .� 2

� � 2.� Issues in Transport Usage. . . . . . . . . . . . . . . . . . .� 5

� � � � � � 2.1.� Application-driven Versus Network-driven . . . . . . . .� 5

� � � � � � 2.2.� Slow Failover. . . . . . . . . . . . . . . . . . . . . .� 6

� � � � � � 2.3.� Use of Nagle Algorithm . . . . . . . . . . . . . . . . .� 7

� � � � � � 2.4.� Multiple Connections . . . . . . . . . . . . . . . . . .� 7

� � � � � � 2.5.� Duplicate Detection. . . . . . . . . . . . . . . . . . .� 8

� � � � � � 2.6.� Invalidation of Transport Parameter Estimates. . . . . .� 8

� � � � � � 2.7.� Inability to use Fast Re-Transmit. . . . . . . . . . . .� 9

� � � � � � 2.8.� Congestion Avoidance . . . . . . . . . . . . . . . . . .� 9

� � � � � � 2.9.� Delayed Acknowledgments. . . . . . . . . . . . . . . . . 11

� � � � � � 2.10. Premature Failover . . . . . . . . . . . . . . . . . . . 11

� � � � � � 2.11. Head of Line Blocking. . . . . . . . . . . . . . . . . . 11

� � � � � � 2.12. Connection Load Balancing. . . . . . . . . . . . . . . . 12

Aboba & Wood� � � � � � � � � � � � � � � Standards Track� � � � � � � � � � � � � � � � � � � � [Page 1]

RFC 3539� � � � � � � � � � � � � � � � AAA Transport Profile� � � � � � � � � � � � � � � � June 2003

� � 3.� AAA Transport Profile. . . . . . . . . . . . . . . . . . . . . 12

� � � � � � 3.1.� Trans...