Information Model for Wavelength Switched Optical Networks (WSONs) with Impairments Validation
draft-ietf-ccamp-wson-iv-info-07
CCAMP G. Martinelli, Ed.
Internet-Draft Cisco
Intended status: Informational H. Zhang, Ed.
Expires: March 8, 2019 Huawei Technologies
G. Galimberti
Cisco
Y. Lee
F. Zhang
Huawei Technologies
September 4, 2018
Information Model for Wavelength Switched Optical Networks (WSONs) with
Impairments Validation
draft-ietf-ccamp-wson-iv-info-07
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
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on March 8, 2019.
Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the
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 March 8, 2019 [Page 1]
Internet-Draft WSON Impairments Information Model September 2018
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
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
Show full document text