--- 1/draft-ietf-ccamp-flexigrid-yang-07.txt 2020-11-01 23:13:09.902952372 -0800 +++ 2/draft-ietf-ccamp-flexigrid-yang-08.txt 2020-11-01 23:13:09.974953381 -0800 @@ -1,25 +1,25 @@ CCAMP Working Group J. Lopez de Vergara Internet-Draft Universidad Autonoma de Madrid Intended status: Informational D. Perdices Burrero -Expires: March 26, 2021 Naudit +Expires: May 5, 2021 Naudit HPCN D. King Old Dog Consulting Y. Lee Samsung H. Zheng Huawei Technologies - September 22, 2020 + November 1, 2020 A YANG Data Model for Flexi-Grid Optical Networks - draft-ietf-ccamp-flexigrid-yang-07 + draft-ietf-ccamp-flexigrid-yang-08 Abstract This document defines a YANG module for managing flexi-grid optical networks. The model defined in this document specifies a flexi-grid traffic engineering database that is used to describe the topology of a flexi-grid network. It is based on and augments existing YANG models that describe network and traffic engineering topologies. A partner document defines a second YANG module for flexi-grid media @@ -34,56 +34,54 @@ 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 26, 2021. + This Internet-Draft will expire on May 5, 2021. 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 . . . . . . . . . . . . . . . . . . . . . . . . 2 - 2. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 4. Tree Diagram . . . . . . . . . . . . . . . . . . . . . . . . 4 - 4.1. Prefixes in Data Node Names . . . . . . . . . . . . . . . 4 - 5. Main Components of the Flexi-grid Topology . . . . . . . . . 5 - 6. Example of Use . . . . . . . . . . . . . . . . . . . . . . . 11 - 7. YANG Model (Tree Structure) for Flexi-grid topology . . . . . 13 - 8. The YANG Code for Flexi-grid topology . . . . . . . . . . . . 30 - 9. Security Considerations . . . . . . . . . . . . . . . . . . . 64 - 10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 65 - 11. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 65 - 12. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 66 - 13. References . . . . . . . . . . . . . . . . . . . . . . . . . 67 - 13.1. Normative References . . . . . . . . . . . . . . . . . . 67 - 13.2. Informative References . . . . . . . . . . . . . . . . . 68 - Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 69 + 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 + 3. Tree Diagram . . . . . . . . . . . . . . . . . . . . . . . . 4 + 3.1. Prefixes in Data Node Names . . . . . . . . . . . . . . . 4 + 4. Example of Use . . . . . . . . . . . . . . . . . . . . . . . 4 + 5. YANG Model (Tree Structure) for Flexi-grid topology . . . . . 6 + 6. The YANG Code for Flexi-grid topology . . . . . . . . . . . . 23 + 7. Security Considerations . . . . . . . . . . . . . . . . . . . 57 + 8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 58 + 9. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 59 + 10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 60 + 11. References . . . . . . . . . . . . . . . . . . . . . . . . . 60 + 11.1. Normative References . . . . . . . . . . . . . . . . . . 60 + 11.2. Informative References . . . . . . . . . . . . . . . . . 61 + Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 62 1. Introduction The flexible grid (flexi-grid) optical network technology defined by the International Telecommunication Union Telecommunication Standardization Sector (ITU-T) and documented in Recommendation G.694.1 [G.694.1] and G.872 [G.872] provides an enhanced Dense Wavelength Division Multiplexing (DWDM) grid by defining a set of nominal central frequencies, channel spacings, and the concept of the "frequency slot". In such an environment, a data-plane connection is @@ -101,37 +99,36 @@ in the dynamic optical network, including the nodes, transponders and links between them, as well as how such links interconnect nodes and transponders. The YANG model for flexi-grid networks allows the representation of the flexi-grid optical layer of a network, combined with the underlying physical layer. This document identifies the flexi-grid components, parameters and their values, characterizes the features and the performances of the - flexi-grid elements. An application example is provided towards the - end of the document to better understand their utility. + flexi-grid elements. For this, it augments [RFC8340]. An + application example is provided towards the end of the document to + better understand their utility. A partner document defines a second YANG module that described flexi- grid tunnels, i.e., the paths from source to destination through a number of intermediate nodes [I-D.ietf-ccamp-flexigrid-media-channel-yang]. -2. Conventions + Data types related to the optical layer are defined in + [I-D.ietf-ccamp-layer0-types]. - The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", - "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and - "OPTIONAL" in this document are to be interpreted as described in BCP - 14 [RFC2119] [RFC8174] when, and only when, they appear in all - capitals, as shown here. + Impairment-aware traffic engineering topology is described in + [I-D.ietf-ccamp-optical-impairment-topology-yang]. -3. Terminology +2. Terminology Refer to [RFC7446] and [RFC7581] for the key terms used in this document. The following terms are defined in [RFC7950] and are not redefined here: o client o server @@ -144,27 +141,27 @@ The following terms are defined in [RFC6241] and are not redefined here: o configuration data o state data The terminology for describing YANG data models is found in [RFC7950]. -4. Tree Diagram +3. Tree Diagram A simplified graphical representation of the data model is used in this document. The meaning of the symbols in these diagrams is defined in [RFC8340]. -4.1. Prefixes in Data Node Names +3.1. Prefixes in Data Node Names In this document, names of data nodes and other data model objects are prefixed using the standard prefix associated with the corresponding YANG imported modules, as shown in Figure 1. It uses prefixes from [I-D.ietf-ccamp-layer0-types], [RFC8345], and [RFC8795]. +-------------+-------------------------+-----------------+ | Prefix | YANG module | Reference | +-------------+-------------------------+-----------------+ @@ -174,329 +171,21 @@ | nt | ietf-network-topology | [RFC8345] | | tet | ietf-te-topology | [RFC8795] | +-------------+-------------------------+-----------------+ Figure 1: Prefixes and Corresponding YANG modules RFC Editor Note: Please replace XXXX with the RFC numbers assigned to draft-ietf-ccamp-layer0-types. Please replace YYYY with the RFC number assigned to this document. Please remove this note. -5. Main Components of the Flexi-grid Topology - - This section describes the YANG module. It is specified in - Section 8. - - The description of the three main components, flexi-grid-node, flexi- - grid-transponder and flexi-grid-link is provided below. flexi-grid- - sliceable-transponders are also defined. - - The syntax specification below uses the augmented Backus-Naur Form - (BNF) as described in [RFC5234]. - - ::= - - : This element designates a node in the - network. - - ::= - - : Contains the configuration of a node. - - ::= - - - : Contains all the - attributes related to the node configuration, such as its - interfaces or its management addresses. - - ::= - - - [ / ] - - : The list containing all the information of - the interfaces. - - : Determines the interface name. - - : Port number of the interface. - - : Boolean value that defines whether the interface - is input or not. - - : Boolean value that defines whether the interface - is output or not. - - : Description of the usage of the interface. - - : Determines if the interface is numbered or - unnumbered. - - ::= - - : An interface with its own IP address. - - : Only available if is - "numbered-interface". Determines the IP address of the - interface. - - ::=