Information Model for Wavelength Switched Optical Networks (WSONs) with Impairments Validation
draft-ietf-ccamp-wson-iv-info-11
CCAMP G. Martinelli, Ed.
Internet-Draft Cisco
Intended status: Informational H. Zheng, Ed.
Expires: September 13, 2020 Huawei Technologies
G. Galimberti
Cisco
Y. Lee
Samsung
F. Zhang
Huawei Technologies
March 12, 2020
Information Model for Wavelength Switched Optical Networks (WSONs) with
Impairments Validation
draft-ietf-ccamp-wson-iv-info-11
Abstract
This document defines an information model to support Impairment-
Aware (IA) Routing and Wavelength Assignment (RWA) functionality.
This information model extends the information model for impairment-
free RWA process in WSON to facilitate computation of paths where
optical impairment constraints need to considered.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on September 13, 2020.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
Martinelli, et al. Expires September 13, 2020 [Page 1]
Internet-Draft WSON Impairments Information Model March 2020
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Definitions, Applicability and Properties . . . . . . . . . . 3
2.1. Definitions . . . . . . . . . . . . . . . . . . . . . . . 3
2.2. Applicability . . . . . . . . . . . . . . . . . . . . . . 4
2.3. Properties . . . . . . . . . . . . . . . . . . . . . . . 5
3. ITU-T List of Optical Parameters . . . . . . . . . . . . . . 6
4. Background from WSON-RWA Information Model . . . . . . . . . 8
5. Optical Impairment Information Model . . . . . . . . . . . . 9
5.1. The Optical Impairment Vector . . . . . . . . . . . . . . 10
5.2. Node Information . . . . . . . . . . . . . . . . . . . . 10
5.2.1. Impairment Matrix . . . . . . . . . . . . . . . . . . 10
5.2.2. Impairment Resource Block Information . . . . . . . . 12
5.3. Link Information . . . . . . . . . . . . . . . . . . . . 12
5.4. Path Information . . . . . . . . . . . . . . . . . . . . 12
6. Encoding Considerations . . . . . . . . . . . . . . . . . . . 13
7. Control Plane Architectures . . . . . . . . . . . . . . . . . 13
7.1. IV-Centralized . . . . . . . . . . . . . . . . . . . . . 14
7.2. IV-Distributed . . . . . . . . . . . . . . . . . . . . . 14
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 14
9. Contributing Authors . . . . . . . . . . . . . . . . . . . . 14
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15
11. Security Considerations . . . . . . . . . . . . . . . . . . . 15
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 16
12.1. Normative References . . . . . . . . . . . . . . . . . . 16
12.2. Informative References . . . . . . . . . . . . . . . . . 16
Appendix A. FAQ . . . . . . . . . . . . . . . . . . . . . . . . 17
A.1. Why the Application Code does not suffice for Optical
Impairment Validation? . . . . . . . . . . . . . . . . . 17
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