Analysis of Existing Quality-of-Service Signaling Protocols
RFC 4094
Document | Type | RFC - Informational (May 2005; No errata) | |
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Authors | Xiaoming Fu , Jukka Manner | ||
Last updated | 2015-10-14 | ||
Stream | Internent Engineering Task Force (IETF) | ||
Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 4094 (Informational) | |
Action Holders |
(None)
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Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Allison Mankin | ||
Send notices to | john.loughney@nokia.com, hannes.tschofenig@siemens.com |
Network Working Group J. Manner Request for Comments: 4094 X. Fu Category: Informational May 2005 Analysis of Existing Quality-of-Service Signaling Protocols 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 (2005). Abstract This document reviews some of the existing Quality of Service (QoS) signaling protocols for an IP network. The goal here is to learn from them and to avoid common misconceptions. Further, we need to avoid mistakes during the design and implementation of any new protocol in this area. Table of Contents 1. Introduction ....................................................3 2. RSVP and RSVP Extensions ........................................4 2.1. Basic Design ...............................................4 2.1.1. Signaling Model .....................................4 2.1.2. Soft State ..........................................5 2.1.3. Two-Pass Signaling Message Exchanges ................5 2.1.4. Receiver-Based Resource Reservation .................5 2.1.5. Separation of QoS Signaling from Routing ............5 2.2. RSVP Extensions ............................................6 2.2.1. Simple Tunneling ....................................6 2.2.2. IPsec Interface .....................................6 2.2.3. Policy Interface ....................................6 2.2.4. Refresh Reduction ...................................7 2.2.5. RSVP over RSVP ......................................8 2.2.6. IEEE 802-Style LAN Interface ........................8 2.2.7. ATM Interface .......................................9 2.2.8. DiffServ Interface ..................................9 2.2.9. Null Service Type ...................................9 2.2.10. MPLS Traffic Engineering ..........................10 2.2.11. GMPLS and RSVP-TE .................................11 Manner & Fu Informational [Page 1] RFC 4094 Analysis of QoS Signaling May 2005 2.2.12. GMPLS Operation at UNI and E-NNI Reference Points ............................................12 2.2.13. MPLS and GMPLS Future Extensions ..................12 2.2.14. ITU-T H.323 Interface .............................13 2.2.15. 3GPP Interface ....................................13 2.3. Extensions for New Deployment Scenarios ...................14 2.4. Conclusion ................................................15 3. RSVP Transport Mechanism Issues ................................16 3.1. Messaging Reliability .....................................16 3.2. Message Packing ...........................................17 3.3. MTU Problem ...............................................17 3.4. RSVP-TE vs. Signaling Protocol for RT Applications ........18 3.5. What Would Be a Better Alternative? .......................18 4. RSVP Protocol Performance Issues ...............................19 4.1. Processing Overhead .......................................19 4.2. Bandwidth Consumption .....................................20 5. RSVP Security and Mobility .....................................21 5.1. Security ..................................................21 5.2. Mobility Support ..........................................22 6. Other QoS Signaling Proposals ..................................23 6.1. Tenet and ST-II ...........................................23 6.2. YESSIR ....................................................24 6.2.1. Reservation Functionality ..........................24 6.2.2. Conclusion .........................................25 6.3. Boomerang .................................................25 6.3.1. Reservation Functionality ..........................25 6.3.2. Conclusions ........................................26 6.4. INSIGNIA ..................................................26 7. Inter-Domain Signaling .........................................27 7.1. BGRP ......................................................27 7.2. SICAP .....................................................27 7.3. DARIS .....................................................28 8. Security Considerations ........................................30 9. Summary ........................................................30 10. Contributors ..................................................31Show full document text