A Yang Data Model for Optical Impairment-aware Topology
draft-ietf-ccamp-optical-impairment-topology-yang-03
CCAMP Working Group Y. Lee
Internet-Draft SKKU (Sung Kyun Kwan University)
Intended status: Standards Track V. Lopez
Expires: September 10, 2020 Telefonica
G. Galimberti
Cisco
D. Beller
Nokia
March 9, 2020
A Yang Data Model for Optical Impairment-aware Topology
draft-ietf-ccamp-optical-impairment-topology-yang-03
Abstract
In order to provision an optical connection through optical networks,
a combination of path continuity, resource availability, and
impairment constraints must be met to determine viable and optimal
paths through the network. The determination of appropriate paths is
known as Impairment-Aware Routing and Wavelength Assignment (IA-RWA)
for WSON, while it is known as Impairment-Aware Routing and Spectrum
Assigment (IA-RSA) for SSON.
This document provides a YANG data model for the impairment-aware TE
topology in optical networks.
Status of This Memo
This Internet-Draft is submitted to IETF 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 September 10, 2020.
Lee, et al. Expires September 10, 2020 [Page 1]
Internet-Draft Opt. Impairment-Aware Topo YANG Model March 2020
Copyright Notice
Copyright (c) 2020 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
(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 . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
1.2. Tree Diagram . . . . . . . . . . . . . . . . . . . . . . 4
1.3. Prefixes in Data Node Names . . . . . . . . . . . . . . . 4
2. Reference Architecture . . . . . . . . . . . . . . . . . . . 4
2.1. Control Plane Architecture . . . . . . . . . . . . . . . 5
2.2. Transport Data Plane . . . . . . . . . . . . . . . . . . 6
2.3. OMS Media Links . . . . . . . . . . . . . . . . . . . . . 6
2.3.1. Optical Tributary Signal (OTSi) . . . . . . . . . . . 7
2.3.2. Optical Tributary Signal Group (OTSiG) . . . . . . . 7
2.3.3. Media Channel (MC) . . . . . . . . . . . . . . . . . 8
2.3.4. Media Channel Group (MCG) . . . . . . . . . . . . . . 9
2.4. Amplifiers . . . . . . . . . . . . . . . . . . . . . . . 10
2.5. Transponders . . . . . . . . . . . . . . . . . . . . . . 11
2.6. WSS/Filter . . . . . . . . . . . . . . . . . . . . . . . 11
2.7. Optical Fiber . . . . . . . . . . . . . . . . . . . . . . 11
2.8. ROADM Node Architectures . . . . . . . . . . . . . . . . 12
2.8.1. Integrated ROADM Architecture with Integrated Optical
Transponders . . . . . . . . . . . . . . . . . . . . 12
2.8.2. Integrated ROADMs with Integrated Optical
Transponders and Single Channel Add/Drop Interfaces
for Remote Optical Transponders . . . . . . . . . . . 13
2.8.3. Disaggregated ROADMs Subdivided into Degree,
Add/Drop, and Optical Transponder Subsystems . . . . 14
2.8.4. Optical Impairments Imposed by ROADM Nodes . . . . . 15
3. YANG Model (Tree Structure) . . . . . . . . . . . . . . . . . 17
4. Optical Impairment Topology YANG Model . . . . . . . . . . . 20
5. Security Considerations . . . . . . . . . . . . . . . . . . . 53
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 53
Show full document text