Authentication, Authorization and Accounting (AAA) Transport Profile
RFC 3539
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RFC - Proposed Standard
(June 2003; No errata)
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Last updated |
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2015-10-14
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IETF
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plain text
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bibtex
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(None)
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No shepherd assigned
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| IESG |
IESG state |
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RFC 3539 (Proposed Standard)
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Consensus Boilerplate |
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Unknown
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Telechat date |
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Responsible AD |
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Randy Bush
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(None)
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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. Transport Mappings . . . . . . . . . . . . . . . . . . . 12
3.2. Use of Nagle Algorithm . . . . . . . . . . . . . . . . . 12
3.3. Multiple Connections . . . . . . . . . . . . . . . . . . 13
3.4. Application Layer Watchdog . . . . . . . . . . . . . . . 13
3.5. Duplicate Detection. . . . . . . . . . . . . . . . . . . 19
3.6. Invalidation of Transport Parameter Estimates. . . . . . 20
3.7. Inability to use Fast Re-Transmit. . . . . . . . . . . . 21
3.8. Head of Line Blocking. . . . . . . . . . . . . . . . . . 22
3.9. Congestion Avoidance . . . . . . . . . . . . . . . . . . 23
3.10. Premature Failover . . . . . . . . . . . . . . . . . . . 24
4. Security Considerations. . . . . . . . . . . . . . . . . . . . 24
5. IANA Considerations. . . . . . . . . . . . . . . . . . . . . . 25
6. References . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6.1. Normative References . . . . . . . . . . . . . . . . . . 25
6.2. Informative References . . . . . . . . . . . . . . . . . 26
Appendix A - Detailed Watchdog Algorithm Description . . . . . . . 28
Appendix B - AAA Agents. . . . . . . . . . . . . . . . . . . . . . 33
B.1. Relays and Proxies . . . . . . . . . . . . . . . . . . . 33
B.2. Re-directs . . . . . . . . . . . . . . . . . . . . . . . 35
B.3. Store and Forward Proxies. . . . . . . . . . . . . . . . 36
B.4. Transport Layer Proxies. . . . . . . . . . . . . . . . . 38
Intellectual Property Statement. . . . . . . . . . . . . . . . . . 39
Acknowledgments. . . . . . . . . . . . . . . . . . . . . . . . . . 39
Author Addresses . . . . . . . . . . . . . . . . . . . . . . . . . 40
Full Copyright Statement . . . . . . . . . . . . . . . . . . . . . 41
1. Introduction
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.
1.1. Requirements Language
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