Information Model for Wavelength Switched Optical Networks (WSONs) with Impairments Validation
draft-ietf-ccamp-wson-iv-info-09
CCAMP G. Martinelli, Ed.
Internet-Draft Cisco
Intended status: Informational H. Zheng, Ed.
Expires: September 5, 2019 Huawei Technologies
G. Galimberti
Cisco
Y. Lee
F. Zhang
Huawei Technologies
March 4, 2019
Information Model for Wavelength Switched Optical Networks (WSONs) with
Impairments Validation
draft-ietf-ccamp-wson-iv-info-09
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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This Internet-Draft will expire on September 5, 2019.
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document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
Martinelli, et al. Expires September 5, 2019 [Page 1]
Internet-Draft WSON Impairments Information Model March 2019
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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
A.2. Are DWDM network multivendor? . . . . . . . . . . . . . . 18
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 18
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