Network Working Group L. Berger
Request for Comments: 5467 LabN
Category: Experimental A. Takacs
Ericsson
D. Caviglia
Ericsson
D. Fedyk
Nortel
J. Meuric
France Telecom
March 2009
GMPLS Asymmetric Bandwidth Bidirectional Label Switched Paths (LSPs)
Status of This Memo
This memo defines an Experimental Protocol for the Internet
community. It does not specify an Internet standard of any kind.
Discussion and suggestions for improvement are requested.
Distribution of this memo is unlimited.
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Berger, et al. Experimental [Page 1]
RFC 5467 Asymmetric Bandwidth Bidirectional LSP March 2009
Abstract
This document defines a method for the support of GMPLS asymmetric
bandwidth bidirectional Label Switched Paths (LSPs). The presented
approach is applicable to any switching technology and builds on the
original Resource Reservation Protocol (RSVP) model for the transport
of traffic-related parameters. The procedures described in this
document are experimental.
Table of Contents
1. Introduction ....................................................2
1.1. Background .................................................3
1.2. Approach Overview ..........................................3
1.3. Conventions Used in This Document ..........................4
2. Generalized Asymmetric Bandwidth Bidirectional LSPs .............4
2.1. UPSTREAM_FLOWSPEC Object ...................................5
2.1.1. Procedures ..........................................5
2.2. UPSTREAM_TSPEC Object ......................................5
2.2.1. Procedures ..........................................5
2.3. UPSTREAM_ADSPEC Object .....................................6
2.3.1. Procedures ..........................................6
3. Packet Formats ..................................................6
4. Compatibility ...................................................7
5. IANA Considerations .............................................8
5.1. UPSTREAM_FLOWSPEC Object ...................................8
5.2. UPSTREAM_TSPEC Object ......................................8
5.3. UPSTREAM_ADSPEC Object .....................................8
6. Security Considerations .........................................8
7. References ......................................................9
7.1. Normative References .......................................9
7.2. Informative References .....................................9
Appendix A. Alternate Approach Using ADSPEC Object.................11
A.1. Applicability .............................................11
A.2. Overview ..................................................11
A.3. Procedures ................................................12
A.4. Compatibility .............................................13
1. Introduction
GMPLS [RFC3473] introduced explicit support for bidirectional Label