Internet Engineering Task Force (IETF) F. Zhang, Ed.
Request for Comments: 7139 Huawei
Updates: 4328 G. Zhang
Category: Standards Track CATR
ISSN: 2070-1721 S. Belotti
Alcatel-Lucent
D. Ceccarelli
Ericsson
K. Pithewan
Infinera
March 2014
GMPLS Signaling Extensions
for Control of Evolving G.709 Optical Transport Networks
Abstract
ITU-T Recommendation G.709 [G709-2012] introduced new Optical channel
Data Unit (ODU) containers (ODU0, ODU4, ODU2e, and ODUflex) and
enhanced Optical Transport Network (OTN) flexibility.
This document updates the ODU-related portions of RFC 4328 to provide
extensions to GMPLS signaling to control the full set of OTN
features, including ODU0, ODU4, ODU2e, and ODUflex.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7139.
Zhang, et al. Standards Track [Page 1]RFC 7139 GMPLS Extensions for G.709 March 2014Copyright Notice
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Table of Contents
1. Introduction ....................................................3
2. Terminology .....................................................3
3. GMPLS Extensions for the Evolving G.709 -- Overview .............3
4. Generalized Label Request .......................................4
5. Extensions for Traffic Parameters for Evolving G.709 OTNs .......7
5.1. Usage of ODUflex(CBR) Traffic Parameters ...................8
5.2. Usage of ODUflex(GFP) Traffic Parameters ..................10
5.3. Notification on Errors of OTN-TDM Traffic Parameters ......11
6. Generalized Label ..............................................12
6.1. OTN-TDM Switching Type Generalized Label ..................12
6.2. Procedures ................................................14
6.2.1. Notification on Label Error ........................16
6.3. Supporting Virtual Concatenation and Multiplication .......17
6.4. Examples ..................................................17
7. Supporting Hitless Adjustment of ODUflex(GFP) ..................19
8. Operations, Administration, and Maintenance (OAM)
Considerations .................................................20
9. Control-Plane Backward-Compatibility Considerations ............20
10. Security Considerations .......................................21
11. IANA Considerations ...........................................21
12. References ....................................................23
12.1. Normative References .....................................23
12.2. Informative References ...................................24
13. Contributors ..................................................25
14. Acknowledgments ...............................................26
Zhang, et al. Standards Track [Page 2]RFC 7139 GMPLS Extensions for G.709 March 20141. Introduction
With the evolution and deployment of Optical Transport Network (OTN)
datatracker.ietf.org