CCAMP Working Group H. Zheng Internet-Draft I. Busi Intended status: Standards Track Huawei Technologies Expires: 12 January 2023 X. Liu IBM Corporation S. Belotti Nokia O. Gonzalez de Dios Telefonica 11 July 2022 A YANG Data Model for Optical Transport Network Topology draft-ietf-ccamp-otn-topo-yang-15 Abstract This document describes a YANG data model to describe the topologies of an Optical Transport Network (OTN). It is independent of control plane protocols and captures topological and resource related information pertaining to OTN. This model enables clients, which interact with a transport domain controller, for OTN topology related operations such as obtaining the relevant topology resource information. Requirements Language The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD 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. 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." Zheng, et al. Expires 12 January 2023 [Page 1] Internet-Draft OTN Topology YANG Model July 2022 This Internet-Draft will expire on 12 January 2023. Copyright Notice Copyright (c) 2022 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 Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1. Terminology and Notations . . . . . . . . . . . . . . . . 3 2. YANG Data Model for OTN Topology . . . . . . . . . . . . . . 4 2.1. OTN Topology Data Model Overview . . . . . . . . . . . . 4 2.2. Attributes Augmentation . . . . . . . . . . . . . . . . . 5 2.3. Bandwidth Augmentation . . . . . . . . . . . . . . . . . 6 2.4. Label Augmentation . . . . . . . . . . . . . . . . . . . 6 3. YANG Tree for OTN topology . . . . . . . . . . . . . . . . . 6 4. The YANG Code . . . . . . . . . . . . . . . . . . . . . . . . 28 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 74 6. Security Considerations . . . . . . . . . . . . . . . . . . . 74 7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 75 8. Contributors . . . . . . . . . . . . . . . . . . . . . . . . 75 9. References . . . . . . . . . . . . . . . . . . . . . . . . . 76 9.1. Normative References . . . . . . . . . . . . . . . . . . 76 9.2. Informative References . . . . . . . . . . . . . . . . . 78 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 78 1. Introduction A transport network is a server-layer network designed to provide connectivity services for a client-layer network to carry the client traffic transparently across the server-layer network resources. A transport network can be constructed of equipments utilizing any of a number of different transport technologies such as the Optical Transport Networks (OTN) or packet transport such as provided by the MPLS-Transport Profile (MPLS-TP). Zheng, et al. Expires 12 January 2023 [Page 2] Internet-Draft OTN Topology YANG Model July 2022 This document defines a data model of an OTN network topology, using YANG [RFC7950]. The model can be used by an application exposing to a transport controller. Furthermore, it can be used by an application for the following purposes (but not limited to): * To obtain a whole view of the network topology information of its interest; * To receive notifications with regard to the information change of the OTN topology; * To enforce the establishment and update of a network topology with the characteristic specified in the data model; The YANG model defined in this document is independent of control plane protocols and captures topology related information pertaining to an Optical Transport Networks (OTN) electrical layer, as the scope specified by [RFC7062] . Furthermore, it is not a stand-alone model, but augmenting from the TE topology YANG model defined in [RFC8795], and importing from the generic Layer 1 types defined in [I-D.ietf-ccamp-layer1-types]. Following TE topology YANG model, the YANG model defined in this document is interface independent. The model is included in [I-D.ietf-teas-actn-yang], which indicates the typical usage of IETF YANG models in ACTN architecture specified by [RFC8453]. More specifically, the usage of this model between controllers is described in [I-D.ietf-ccamp-transport-nbi-app-statement]. 1.1. Terminology and Notations A simplified graphical representation of the data model is used in this document. The meaning of the symbols in the YANG data tree presented later in this document is defined in [RFC8340]. They are provided below for reference. * Brackets "[" and "]" enclose list keys. * Abbreviations before data node names: "rw" means configuration (read-write) and "ro" state data (read-only). * Symbols after data node names: "?" means an optional node, "!" means a presence container, and "*" denotes a list and leaf-list. * Parentheses enclose choice and case nodes, and case nodes are also marked with a colon (":"). * Ellipsis ("...") stands for contents of subtrees that are not shown. Zheng, et al. Expires 12 January 2023 [Page 3] Internet-Draft OTN Topology YANG Model July 2022 * Some of the key terms used in this document are listed as follow. * TS: Tributary Slot. * TSG: Tributary Slot Granularity. * TPN: Tributary Port Number. 2. YANG Data Model for OTN Topology 2.1. OTN Topology Data Model Overview This document aims to describe the data model for OTN topology. As a classic Traffic-engineering (TE) technology, OTN provide TDM switching in transport network [ITU-Tg709]. Therefore the YANG module presented in this document augments from a more generic Traffic Engineered (TE) network topology data model, i.e., the ietf- te-topology, as specified in [RFC8795]. In section 6 of [RFC8795], the guideline for augmenting TE topology model was provided, and in this draft we augment the TE topology model to describe the topology in OTN network. Common types, identities and groupings defined in [I-D.ietf-ccamp-layer1-types] are reused in this document. [RFC8345] describes a network topology model and provide the fundamental model for [RFC8795]. However, this work is not directly augmenting [RFC8345]. Figure 1 shows the augmentation relationship. +------------------+ TE generic | ietf-te-topology | +------------------+ ^ | | Augments | +---------+---------+ OTN | ietf-otn-topology | +-------------------+ Figure 1 - Relationship between OTN and TE topology models The entities and TE attributes, such as node, termination points and links, are still applicable for describing an OTN topology and the model presented in this document only specifies with technology- specific attributes/information. The OTN-specific attributes in [RFC7139], including the TPN, TS and TSG, can be used to represent the bandwidth and label information. These attributes have been specified in [I-D.ietf-ccamp-layer1-types], and used in this document for augmentation of the generic TE topology model. Zheng, et al. Expires 12 January 2023 [Page 4] Internet-Draft OTN Topology YANG Model July 2022 The YANG module ietf-otn-topology defined in this document conforms to the Network Management Datastore Architecture (NMDA) defined in [RFC8342]. 2.2. Attributes Augmentation There are a few characteristics augmenting to the generic TE topology. Following the guidelines in [RFC8795], a otn-topology network-type is specified as the indicator of OTN in the topology as follow. augment /nw:networks/nw:network/nw:network-types/tet:te-topology: +--rw otn-topology! Two OTN technology-specific parameters are specified to augment the generic TE link attributes. augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes: +--rw tsg? identityref +--rw distance? uint32 In OTN the resources is measured by the tributary slots (TS), as specified in [RFC7139]. The tributary slot granularity (TSG) attribute defines the granularity, such as 1.25G, 2.5G and 5G, used by the TSs of a given OTN link. The distance attribute describes the geographical distance between a pair of OTN link termination points. This is usually measured by the length of the fibre. The OTN topology model allows reporting also the access links which are capable of supporting the transparent client signals, defined in [I-D.ietf-ccamp-layer1-types]. These links can also be multi- function access links that can support one or more transparent client signals as well as OTN. A client-svc container is specified to augment the generic TE link termination point to describe if the point is capable of carrying client signal and what kind of signal can be carried as follow. Zheng, et al. Expires 12 January 2023 [Page 5] Internet-Draft OTN Topology YANG Model July 2022 augment /nw:networks/nw:network/nw:node/nt:termination-point /tet:te: +--rw client-svc! +--rw client-facing? boolean +--rw supported-client-signal* identityref The client-facing is an indicator on whether the point is needed to carry client signal. A list of support-client-signal is used to provide the capabilities of client signal specified in [I-D.ietf-ccamp-layer1-types]. 2.3. Bandwidth Augmentation Following the guidelines in [RFC8795], the model augments all the occurrences of the te-bandwidth container with the OTN technology specific attributes using the otn-link-bandwidth and otn-path- bandwidth groupings defined in [I-D.ietf-ccamp-layer1-types]. 2.4. Label Augmentation The model augments all the occurrences of the label-restriction list with OTN technology specific attributes using the otn-label-range- info grouping defined in [I-D.ietf-ccamp-layer1-types]. Moreover, following the guidelines in [RFC8795], the model augments all the occurrences of the te-label container with the OTN technology specific attributes using the otn-label-start-end, otn-label-hop and otn-label-step groupings defined in [I-D.ietf-ccamp-layer1-types]. 3. YANG Tree for OTN topology module: ietf-otn-topology augment /nw:networks/nw:network/nw:network-types/tet:te-topology: +--rw otn-topology! augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes: +--rw otn-link! | +--rw odtu-flex-type? l1-types:odtu-flex-type | +--rw tsg? identityref | +--rw distance? uint32 +--rw client-svc! +--rw supported-client-signal* identityref augment /nw:networks/nw:network/nw:node/nt:termination-point /tet:te: +--rw otn-ltp! | +--rw odtu-flex-type? l1-types:odtu-flex-type Zheng, et al. Expires 12 January 2023 [Page 6] Internet-Draft OTN Topology YANG Model July 2022 +--rw client-svc! +--rw supported-client-signal* identityref augment /nw:networks/nw:network/nw:node/nt:termination-point/tet:te /tet:interface-switching-capability/tet:max-lsp-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odu-type? identityref +--rw max-ts-number? uint16 augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:path-constraints/tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] | +--rw odu-type identityref | +--rw number? uint16 | +--rw ts-number? uint16 +--rw odtu-flex-type? l1-types:odtu-flex-type augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:path-constraints /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] | +--rw odu-type identityref | +--rw number? uint16 | +--rw ts-number? uint16 +--rw odtu-flex-type? l1-types:odtu-flex-type augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:path-constraints/tet:te-bandwidth/tet:technology: +--:(otn) +--ro otn +--ro odulist* [odu-type] | +--ro odu-type identityref | +--ro number? uint16 | +--ro ts-number? uint16 +--ro odtu-flex-type? l1-types:odtu-flex-type augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:path-constraints /tet:te-bandwidth/tet:technology: +--:(otn) +--ro otn +--ro odulist* [odu-type] | +--ro odu-type identityref Zheng, et al. Expires 12 January 2023 [Page 7] Internet-Draft OTN Topology YANG Model July 2022 | +--ro number? uint16 | +--ro ts-number? uint16 +--ro odtu-flex-type? l1-types:odtu-flex-type augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point/tet:client-layer-adaptation /tet:switching-capability/tet:te-bandwidth /tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] | +--rw odu-type identityref | +--rw number? uint16 | +--rw ts-number? uint16 +--rw odtu-flex-type? l1-types:odtu-flex-type augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:path-constraints /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] | +--rw odu-type identityref | +--rw number? uint16 | +--rw ts-number? uint16 +--rw odtu-flex-type? l1-types:odtu-flex-type augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:path-constraints /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] | +--rw odu-type identityref | +--rw number? uint16 | +--rw ts-number? uint16 +--rw odtu-flex-type? l1-types:odtu-flex-type augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes /tet:interface-switching-capability/tet:max-lsp-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odu-type? identityref +--rw max-ts-number? uint16 augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:max-link-bandwidth /tet:te-bandwidth/tet:technology: Zheng, et al. Expires 12 January 2023 [Page 8] Internet-Draft OTN Topology YANG Model July 2022 +--:(otn) +--rw otn +--rw odulist* [odu-type] +--rw odu-type identityref +--rw number? uint16 +--rw ts-number? uint16 augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:max-resv-link-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] +--rw odu-type identityref +--rw number? uint16 +--rw ts-number? uint16 augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:unreserved-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] +--rw odu-type identityref +--rw number? uint16 +--rw ts-number? uint16 augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry /tet:interface-switching-capability/tet:max-lsp-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--ro otn +--ro odu-type? identityref +--ro max-ts-number? uint16 augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry/tet:max-link-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--ro otn +--ro odulist* [odu-type] +--ro odu-type identityref +--ro number? uint16 +--ro ts-number? uint16 augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry/tet:max-resv-link-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--ro otn +--ro odulist* [odu-type] +--ro odu-type identityref Zheng, et al. Expires 12 January 2023 [Page 9] Internet-Draft OTN Topology YANG Model July 2022 +--ro number? uint16 +--ro ts-number? uint16 augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry/tet:unreserved-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--ro otn +--ro odulist* [odu-type] +--ro odu-type identityref +--ro number? uint16 +--ro ts-number? uint16 augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes /tet:interface-switching-capability/tet:max-lsp-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odu-type? identityref +--rw max-ts-number? uint16 augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:max-link-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] +--rw odu-type identityref +--rw number? uint16 +--rw ts-number? uint16 augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:max-resv-link-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] +--rw odu-type identityref +--rw number? uint16 +--rw ts-number? uint16 augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:unreserved-bandwidth /tet:te-bandwidth/tet:technology: +--:(otn) +--rw otn +--rw odulist* [odu-type] +--rw odu-type identityref +--rw number? uint16 +--rw ts-number? uint16 augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices Zheng, et al. Expires 12 January 2023 [Page 10] Internet-Draft OTN Topology YANG Model July 2022 /tet:label-restrictions/tet:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:from/tet:label-restrictions /tet:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:to/tet:label-restrictions /tet:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:label-restrictions/tet:label-restriction: +--ro otn-label-range +--ro range-type? otn-label-range-type +--ro tsg? identityref +--ro odu-type-list* identityref +--ro priority? uint8 augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:from/tet:label-restrictions /tet:label-restriction: +--ro otn-label-range +--ro range-type? otn-label-range-type +--ro tsg? identityref +--ro odu-type-list* identityref +--ro priority? uint8 augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:to/tet:label-restrictions /tet:label-restriction: +--ro otn-label-range +--ro range-type? otn-label-range-type +--ro tsg? identityref Zheng, et al. Expires 12 January 2023 [Page 11] Internet-Draft OTN Topology YANG Model July 2022 +--ro odu-type-list* identityref +--ro priority? uint8 augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:label-restrictions /tet:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:label-restrictions /tet:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry/tet:label-restrictions /tet:label-restriction: +--ro otn-label-range +--ro range-type? otn-label-range-type +--ro tsg? identityref +--ro odu-type-list* identityref +--ro priority? uint8 augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:label-restrictions/tet:label-restriction Zheng, et al. Expires 12 January 2023 [Page 12] Internet-Draft OTN Topology YANG Model July 2022 /tet:label-start/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:label-restrictions/tet:label-restriction /tet:label-end/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:label-restrictions/tet:label-restriction /tet:label-step/tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:underlay/tet:primary-path/tet:path-element/tet:type /tet:label/tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:underlay/tet:backup-path/tet:path-element/tet:type /tet:label/tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string Zheng, et al. Expires 12 January 2023 [Page 13] Internet-Draft OTN Topology YANG Model July 2022 augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:optimizations/tet:algorithm/tet:metric /tet:optimization-metric /tet:explicit-route-exclude-objects /tet:route-object-exclude-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:optimizations/tet:algorithm/tet:metric /tet:optimization-metric /tet:explicit-route-include-objects /tet:route-object-include-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:path-properties/tet:path-route-objects /tet:path-route-object/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:from/tet:label-restrictions /tet:label-restriction/tet:label-start/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices Zheng, et al. Expires 12 January 2023 [Page 14] Internet-Draft OTN Topology YANG Model July 2022 /tet:connectivity-matrix/tet:from/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:from/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:to/tet:label-restrictions /tet:label-restriction/tet:label-start/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:to/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:to/tet:label-restrictions Zheng, et al. Expires 12 January 2023 [Page 15] Internet-Draft OTN Topology YANG Model July 2022 /tet:label-restriction/tet:label-step/tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:underlay/tet:primary-path /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:underlay/tet:backup-path /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:optimizations/tet:algorithm /tet:metric/tet:optimization-metric /tet:explicit-route-exclude-objects /tet:route-object-exclude-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:optimizations/tet:algorithm /tet:metric/tet:optimization-metric /tet:explicit-route-include-objects /tet:route-object-include-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) Zheng, et al. Expires 12 January 2023 [Page 16] Internet-Draft OTN Topology YANG Model July 2022 +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:connectivity-matrix/tet:path-properties /tet:path-route-objects/tet:path-route-object/tet:type /tet:label/tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:label-restrictions/tet:label-restriction /tet:label-start/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:label-restrictions/tet:label-restriction /tet:label-end/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:label-restrictions/tet:label-restriction /tet:label-step/tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te Zheng, et al. Expires 12 January 2023 [Page 17] Internet-Draft OTN Topology YANG Model July 2022 /tet:information-source-entry/tet:connectivity-matrices /tet:underlay/tet:primary-path/tet:path-element/tet:type /tet:label/tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:underlay/tet:backup-path/tet:path-element/tet:type /tet:label/tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:optimizations/tet:algorithm/tet:metric /tet:optimization-metric /tet:explicit-route-exclude-objects /tet:route-object-exclude-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:optimizations/tet:algorithm/tet:metric /tet:optimization-metric /tet:explicit-route-include-objects /tet:route-object-include-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:path-properties/tet:path-route-objects /tet:path-route-object/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--ro otn Zheng, et al. Expires 12 January 2023 [Page 18] Internet-Draft OTN Topology YANG Model July 2022 +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:from/tet:label-restrictions /tet:label-restriction/tet:label-start/tet:te-label /tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:from/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:from/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:to/tet:label-restrictions /tet:label-restriction/tet:label-start/tet:te-label /tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn Zheng, et al. Expires 12 January 2023 [Page 19] Internet-Draft OTN Topology YANG Model July 2022 +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:to/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:to/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:underlay/tet:primary-path /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:underlay/tet:backup-path /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:optimizations/tet:algorithm Zheng, et al. Expires 12 January 2023 [Page 20] Internet-Draft OTN Topology YANG Model July 2022 /tet:metric/tet:optimization-metric /tet:explicit-route-exclude-objects /tet:route-object-exclude-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:optimizations/tet:algorithm /tet:metric/tet:optimization-metric /tet:explicit-route-include-objects /tet:route-object-include-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:connectivity-matrix/tet:path-properties /tet:path-route-objects/tet:path-route-object/tet:type /tet:label/tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:label-restrictions /tet:label-restriction/tet:label-start/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: Zheng, et al. Expires 12 January 2023 [Page 21] Internet-Draft OTN Topology YANG Model July 2022 +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:underlay /tet:primary-path/tet:path-element/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:underlay /tet:backup-path/tet:path-element/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:optimizations /tet:algorithm/tet:metric/tet:optimization-metric /tet:explicit-route-exclude-objects /tet:route-object-exclude-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn Zheng, et al. Expires 12 January 2023 [Page 22] Internet-Draft OTN Topology YANG Model July 2022 +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:optimizations /tet:algorithm/tet:metric/tet:optimization-metric /tet:explicit-route-include-objects /tet:route-object-include-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:path-properties /tet:path-route-objects/tet:path-route-object/tet:type /tet:label/tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:label-restrictions /tet:label-restriction/tet:label-start/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn Zheng, et al. Expires 12 January 2023 [Page 23] Internet-Draft OTN Topology YANG Model July 2022 +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:underlay /tet:primary-path/tet:path-element/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:underlay/tet:backup-path /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:optimizations /tet:algorithm/tet:metric/tet:optimization-metric /tet:explicit-route-exclude-objects /tet:route-object-exclude-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref Zheng, et al. Expires 12 January 2023 [Page 24] Internet-Draft OTN Topology YANG Model July 2022 +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:optimizations /tet:algorithm/tet:metric/tet:optimization-metric /tet:explicit-route-include-objects /tet:route-object-include-object/tet:type/tet:label /tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities /tet:local-link-connectivity/tet:path-properties /tet:path-route-objects/tet:path-route-object/tet:type /tet:label/tet:label-hop/tet:te-label/tet:technology: +--:(otn) +--ro otn +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:underlay/tet:primary-path /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:underlay/tet:backup-path /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction/tet:label-start/tet:te-label /tet:technology: +--:(otn) Zheng, et al. Expires 12 January 2023 [Page 25] Internet-Draft OTN Topology YANG Model July 2022 +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry/tet:label-restrictions /tet:label-restriction/tet:label-start/tet:te-label /tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) Zheng, et al. Expires 12 January 2023 [Page 26] Internet-Draft OTN Topology YANG Model July 2022 +--ro ts? otn-ts augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(otn) +--ro otn +--ro (range-type)? +--:(trib-port) | +--ro tpn? otn-tpn +--:(trib-slot) +--ro ts? otn-ts augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:underlay/tet:primary-path /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:underlay/tet:backup-path /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(otn) +--rw otn +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction/tet:label-start/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) Zheng, et al. Expires 12 January 2023 [Page 27] Internet-Draft OTN Topology YANG Model July 2022 | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(otn) +--rw otn +--rw (range-type)? +--:(trib-port) | +--rw tpn? otn-tpn +--:(trib-slot) +--rw ts? otn-ts 4. The YANG Code file "ietf-otn-topology@2022-07-11.yang" module ietf-otn-topology { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-otn-topology"; prefix "otnt"; import ietf-network { prefix "nw"; reference "RFC 8345: A YANG Data Model for Network Topologies"; } import ietf-network-topology { prefix "nt"; reference "RFC 8345: A YANG Data Model for Network Topologies"; } import ietf-te-topology { prefix "tet"; reference "RFC 8795: YANG Data Model for Traffic Engineering (TE) Topologies"; } import ietf-layer1-types { prefix "l1-types"; reference "I-D.ietf-ccamp-layer1-types: A YANG Data Model for Layer 1 Types"; } Zheng, et al. Expires 12 January 2023 [Page 28] Internet-Draft OTN Topology YANG Model July 2022 organization "IETF CCAMP Working Group"; contact "WG Web: WG List: Editor: Haomian Zheng Editor: Italo Busi Editor: Xufeng Liu Editor: Sergio Belotti Editor: Oscar Gonzalez de Dios "; description "This module defines a protocol independent Layer 1/ODU topology data model. The model fully conforms to the Network Management Datastore Architecture (NMDA). Copyright (c) 2022 IETF Trust and the persons identified as authors of the code. All rights reserved. Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Revised BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices."; revision 2022-07-11 { description "Initial Revision"; reference "RFC XXXX: A YANG Data Model for Optical Transport Network Topology"; // RFC Ed.: replace XXXX with actual RFC number, update date // information and remove this note } Zheng, et al. Expires 12 January 2023 [Page 29] Internet-Draft OTN Topology YANG Model July 2022 /* * Data nodes */ augment "/nw:networks/nw:network/nw:network-types/" + "tet:te-topology" { container otn-topology { presence "indicates a topology type of Optical Transport Network (OTN)-electrical layer."; description "otn topology type"; } description "augment network types to include otn newtork"; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes" { when "../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augment only for otn network."; } description "Augment link configuration"; container otn-link { presence "When present, indicates that the Link is an OTN Link."; description "Attributes of the OTN Link."; leaf odtu-flex-type { type l1-types:odtu-flex-type; description "The type of Optical Data Tributary Unit (ODTU) whose nominal bitrate is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link."; } leaf tsg { type identityref { base l1-types:tributary-slot-granularity; } description "Tributary slot granularity."; reference "G.709/Y.1331, February 2016: Interfaces for the Optical Transport Network (OTN)"; } leaf distance { type uint32; description "distance in the unit of kilometers"; } Zheng, et al. Expires 12 January 2023 [Page 30] Internet-Draft OTN Topology YANG Model July 2022 } container client-svc { presence "When present, indicates that the Link can support Costant Bit Rate (CBR) client signals."; description "Attributes of the Link supporting CBR client signals."; leaf-list supported-client-signal { type identityref { base l1-types:client-signal; } description "List of client signal types supported by the Link."; } } } augment "/nw:networks/nw:network/nw:node/nt:termination-point/" + "tet:te" { when "../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augment only for otn network"; } description "OTN TP attributes config in ODU topology."; container otn-ltp { presence "When present, indicates that the Link Termination Point (LTP) is an OTN-capable LTP."; description "Attributes of the OTN Link Termination Point (LTP)."; leaf odtu-flex-type { type l1-types:odtu-flex-type; description "The type of Optical Data Tributary Unit (ODTU) whose nominal bitrate is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link Termination Point (LTP)."; } } container client-svc { presence "When present, indicates that the Link Termination Point (LTP) can support Costant Bit Rate (CBR) client signals."; description "OTN LTP Service attributes."; leaf-list supported-client-signal { type identityref { Zheng, et al. Expires 12 January 2023 [Page 31] Internet-Draft OTN Topology YANG Model July 2022 base l1-types:client-signal; } description "List of client signal types supported by the LTP."; } } } /* * Augment TE bandwidth */ augment "/nw:networks/nw:network/nw:node/nt:termination-point/" + "tet:te/" + "tet:interface-switching-capability/tet:max-lsp-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment maximum LSP TE bandwidth for the link termination point (LTP)."; case otn { uses l1-types:otn-max-path-bandwidth { description "The odtu-flex-type attribute of the OTN Link Termination Point (LTP) is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN LTP."; } } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:path-constraints/tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE bandwidth path constraints of the TE node connectivity matrices."; Zheng, et al. Expires 12 January 2023 [Page 32] Internet-Draft OTN Topology YANG Model July 2022 case otn { uses l1-types:otn-link-bandwidth { augment otn { description "Augment OTN link bandwidth information."; leaf odtu-flex-type { type l1-types:odtu-flex-type; description "The type of Optical Data Tributary Unit (ODTU) whose nominal bitrate is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up along the underlay paths of these OTN connectivity matrices."; } } } } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:path-constraints/tet:te-bandwidth/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE bandwidth path constraints of the connectivity matrix entry."; case otn { uses l1-types:otn-link-bandwidth { augment otn { description "Augment OTN link bandwidth information."; leaf odtu-flex-type { type l1-types:odtu-flex-type; description "The type of Optical Data Tributary Unit (ODTU) whose nominal bitrate is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up along the underlay path of this OTN connectivity matrix entry."; } } } Zheng, et al. Expires 12 January 2023 [Page 33] Internet-Draft OTN Topology YANG Model July 2022 } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:path-constraints/tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE bandwidth path constraints of the TE node connectivity matrices information source."; case otn { uses l1-types:otn-link-bandwidth { augment otn { description "Augment OTN link bandwidth information."; leaf odtu-flex-type { type l1-types:odtu-flex-type; description "The type of Optical Data Tributary Unit (ODTU) whose nominal bitrate is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up along the underlay paths of these OTN connectivity matrices."; } } } } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:path-constraints/tet:te-bandwidth/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE bandwidth path constraints of the connectivity matrix entry information source"; case otn { Zheng, et al. Expires 12 January 2023 [Page 34] Internet-Draft OTN Topology YANG Model July 2022 uses l1-types:otn-link-bandwidth { augment otn { description "Augment OTN link bandwidth information."; leaf odtu-flex-type { type l1-types:odtu-flex-type; description "The type of Optical Data Tributary Unit (ODTU) whose nominal bitrate is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up along the underlay path of this OTN connectivity matrix entry."; } } } } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:client-layer-adaptation/tet:switching-capability/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment client TE bandwidth of the tunnel termination point (TTP)"; case otn { uses l1-types:otn-link-bandwidth { augment otn { description "Augment OTN link bandwidth information."; leaf odtu-flex-type { type l1-types:odtu-flex-type; description "The type of Optical Data Tributary Unit (ODTU) whose nominal bitrate is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs terminated on this OTN Tunnel Termination Point (TTP)."; } } } } Zheng, et al. Expires 12 January 2023 [Page 35] Internet-Draft OTN Topology YANG Model July 2022 } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/tet:path-constraints/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE bandwidth path constraints for the TTP Local Link Connectivities."; case otn { uses l1-types:otn-link-bandwidth { augment otn { description "Augment OTN link bandwidth information."; leaf odtu-flex-type { type l1-types:odtu-flex-type; description "The type of Optical Data Tributary Unit (ODTU) whose nominal bitrate is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up along the underlay paths of these OTN Local Link Connectivities."; } } } } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/tet:path-constraints/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE bandwidth path constraints for the TTP Local Link Connectivity entry."; Zheng, et al. Expires 12 January 2023 [Page 36] Internet-Draft OTN Topology YANG Model July 2022 case otn { uses l1-types:otn-link-bandwidth { augment otn { description "Augment OTN link bandwidth information."; leaf odtu-flex-type { type l1-types:odtu-flex-type; description "The type of Optical Data Tributary Unit (ODTU) whose nominal bitrate is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up along the underlay path of this OTN Local Link Connectivyt entry."; } } } } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:interface-switching-capability/tet:max-lsp-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment maximum LSP TE bandwidth for the TE link."; case otn { uses l1-types:otn-max-path-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link."; } } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:max-link-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description Zheng, et al. Expires 12 January 2023 [Page 37] Internet-Draft OTN Topology YANG Model July 2022 "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment maximum TE bandwidth for the TE link"; case otn { uses l1-types:otn-link-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link."; } } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:max-resv-link-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment maximum reservable TE bandwidth for the TE link"; case otn { uses l1-types:otn-link-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link."; } } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:unreserved-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description Zheng, et al. Expires 12 January 2023 [Page 38] Internet-Draft OTN Topology YANG Model July 2022 "Augment unreserved TE bandwidth for the TE Link"; case otn { uses l1-types:otn-link-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link."; } } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:interface-switching-capability/" + "tet:max-lsp-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment maximum LSP TE bandwidth for the TE link information source"; case otn { uses l1-types:otn-max-path-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link."; } } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:max-link-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment maximum TE bandwidth for the TE link information source"; Zheng, et al. Expires 12 January 2023 [Page 39] Internet-Draft OTN Topology YANG Model July 2022 case otn { uses l1-types:otn-link-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link."; } } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:max-resv-link-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment maximum reservable TE bandwidth for the TE link information-source"; case otn { uses l1-types:otn-link-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link."; } } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:unreserved-bandwidth/" + "tet:te-bandwidth/tet:technology" { when "../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment unreserved TE bandwidth of the TE link information source"; case otn { uses l1-types:otn-link-bandwidth { Zheng, et al. Expires 12 January 2023 [Page 40] Internet-Draft OTN Topology YANG Model July 2022 description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on this OTN Link."; } } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:interface-switching-capability/" + "tet:max-lsp-bandwidth/" + "tet:te-bandwidth/tet:technology" { description "Augment maximum LSP TE bandwidth of the TE link template"; case otn { uses l1-types:otn-max-path-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on the OTN Link that uses this Link Template."; } } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:max-link-bandwidth/" + "tet:te-bandwidth/tet:technology" { description "Augment maximum TE bandwidth the TE link template"; case otn { uses l1-types:otn-link-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on the OTN Link that uses this Link Template."; } } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:max-resv-link-bandwidth/" + "tet:te-bandwidth/tet:technology" { Zheng, et al. Expires 12 January 2023 [Page 41] Internet-Draft OTN Topology YANG Model July 2022 description "Augment maximum reservable TE bandwidth for the TE link template."; case otn { uses l1-types:otn-link-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on the OTN Link that uses this Link Template."; } } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:unreserved-bandwidth/" + "tet:te-bandwidth/tet:technology" { description "Augment unreserved TE bandwidth the TE link template"; case otn { uses l1-types:otn-link-bandwidth { description "The odtu-flex-type attribute of the OTN Link is used to compute the number of Tributary Slots (TS) required by the ODUflex LSPs set up on the OTN Link that uses this Link Template."; } } } /* * Augment TE label range information */ augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the TE node connectivity matrices."; uses l1-types:otn-label-range-info; Zheng, et al. Expires 12 January 2023 [Page 42] Internet-Draft OTN Topology YANG Model July 2022 } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:from/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the source LTP of the connectivity matrix entry."; uses l1-types:otn-label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:to/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the destination LTP of the connectivity matrix entry."; uses l1-types:otn-label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/" + "tet:connectivity-matrices/tet:label-restrictions/" + "tet:label-restriction" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the TE node connectivity matrices information source."; uses l1-types:otn-label-range-info; Zheng, et al. Expires 12 January 2023 [Page 43] Internet-Draft OTN Topology YANG Model July 2022 } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:from/tet:label-restrictions/tet:label-restriction" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the source LTP of the connectivity matrix entry information source."; uses l1-types:otn-label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:to/tet:label-restrictions/tet:label-restriction" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the destination LTP of the connectivity matrix entry information source."; uses l1-types:otn-label-range-info; } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the TTP Local Link Connectivities."; uses l1-types:otn-label-range-info; Zheng, et al. Expires 12 January 2023 [Page 44] Internet-Draft OTN Topology YANG Model July 2022 } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the TTP Local Link Connectivity entry."; uses l1-types:otn-label-range-info; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the TE link."; uses l1-types:otn-label-range-info; } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:label-restrictions/tet:label-restriction" { when "../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range information for the TE link information source."; uses l1-types:otn-label-range-info; } Zheng, et al. Expires 12 January 2023 [Page 45] Internet-Draft OTN Topology YANG Model July 2022 augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction" { description "Augment TE label range information for the TE link template."; uses l1-types:otn-label-range-info; } /* * Augment TE label */ augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/" + "tet:te-label/tet:technology" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the TE node connectivity matrices"; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:label-restrictions/" + "tet:label-restriction/tet:label-end/" + "tet:te-label/tet:technology" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the TE node connectivity matrices"; case otn { uses l1-types:otn-label-start-end; } Zheng, et al. Expires 12 January 2023 [Page 46] Internet-Draft OTN Topology YANG Model July 2022 } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:label-restrictions/" + "tet:label-restriction/tet:label-step/" + "tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the TE node connectivity matrices"; case otn { uses l1-types:otn-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:underlay/tet:primary-path/tet:path-element/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay primary path of the TE node connectivity matrices"; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:underlay/tet:backup-path/tet:path-element/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" Zheng, et al. Expires 12 January 2023 [Page 47] Internet-Draft OTN Topology YANG Model July 2022 + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay backup path of the TE node connectivity matrices"; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TE node connectivity matrices"; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { Zheng, et al. Expires 12 January 2023 [Page 48] Internet-Draft OTN Topology YANG Model July 2022 description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TE node connectivity matrices"; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the computed path route objects of the TE node connectivity matrices"; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:from/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the source LTP Zheng, et al. Expires 12 January 2023 [Page 49] Internet-Draft OTN Topology YANG Model July 2022 of the connectivity matrix entry."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:from/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the source LTP of the connectivity matrix entry."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:from/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/" + "tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the source LTP of the connectivity matrix entry."; case otn { uses l1-types:otn-label-step; } } Zheng, et al. Expires 12 January 2023 [Page 50] Internet-Draft OTN Topology YANG Model July 2022 augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:to/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the destination LTP of the connectivity matrix entry."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:to/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the destination LTP of the connectivity matrix entry."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:to/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/" + "tet:technology" { Zheng, et al. Expires 12 January 2023 [Page 51] Internet-Draft OTN Topology YANG Model July 2022 when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the destination LTP of the connectivity matrix entry."; case otn { uses l1-types:otn-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:underlay/tet:primary-path/tet:path-element/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay primary path of the connectivity matrix entry."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:underlay/tet:backup-path/tet:path-element/" + "tet:type/tet:label/tet:label-hop/" + "tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; Zheng, et al. Expires 12 January 2023 [Page 52] Internet-Draft OTN Topology YANG Model July 2022 } description "Augment TE label hop for the underlay backup path of the connectivity matrix entry."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:optimizations/" + "tet:algorithm/tet:metric/tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the connectivity matrix entry."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/tet:optimizations/" + "tet:algorithm/tet:metric/tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the connectivity matrix entry."; Zheng, et al. Expires 12 January 2023 [Page 53] Internet-Draft OTN Topology YANG Model July 2022 case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the computed path route objects of the connectivity matrix entry."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/" + "tet:connectivity-matrices/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the TE node connectivity matrices information source."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/" Zheng, et al. Expires 12 January 2023 [Page 54] Internet-Draft OTN Topology YANG Model July 2022 + "tet:connectivity-matrices/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the TE node connectivity matrices information source."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/" + "tet:connectivity-matrices/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the TE node connectivity matrices information source."; case otn { uses l1-types:otn-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; Zheng, et al. Expires 12 January 2023 [Page 55] Internet-Draft OTN Topology YANG Model July 2022 } description "Augment TE label hop for the underlay primary path of the TE node connectivity matrices of the information source entry."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay backup path of the TE node connectivity matrices of the information source entry."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TE node connectivity matrices information source."; Zheng, et al. Expires 12 January 2023 [Page 56] Internet-Draft OTN Topology YANG Model July 2022 case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TE node connectivity matrices information source."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the computed path route objects of the TE node connectivity matrices information source."; case otn { uses l1-types:otn-label-hop; } } Zheng, et al. Expires 12 January 2023 [Page 57] Internet-Draft OTN Topology YANG Model July 2022 augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:from/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the source LTP of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:from/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the source LTP of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:from/tet:label-restrictions/" + "tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../../../../" Zheng, et al. Expires 12 January 2023 [Page 58] Internet-Draft OTN Topology YANG Model July 2022 + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the source LTP of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:to/tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the destination LTP of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:to/tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the destination LTP Zheng, et al. Expires 12 January 2023 [Page 59] Internet-Draft OTN Topology YANG Model July 2022 of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:to/tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the destination LTP of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay primary path of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" Zheng, et al. Expires 12 January 2023 [Page 60] Internet-Draft OTN Topology YANG Model July 2022 + "tet:connectivity-matrix/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay backup path of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" Zheng, et al. Expires 12 January 2023 [Page 61] Internet-Draft OTN Topology YANG Model July 2022 + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:connectivity-matrix/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the computed path route objects of the connectivity matrix entry information source."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/" + "tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { Zheng, et al. Expires 12 January 2023 [Page 62] Internet-Draft OTN Topology YANG Model July 2022 description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the TTP Local Link Connectivities."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/" + "tet:te-label/tet:technology"{ when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the TTP Local Link Connectivities."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/" + "tet:technology"{ when "../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the TTP Zheng, et al. Expires 12 January 2023 [Page 63] Internet-Draft OTN Topology YANG Model July 2022 Local Link Connectivities."; case otn { uses l1-types:otn-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay primary path of the TTP Local Link Connectivities."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay backup path of the TTP Local Link Connectivities."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" Zheng, et al. Expires 12 January 2023 [Page 64] Internet-Draft OTN Topology YANG Model July 2022 + "tet:local-link-connectivities/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TTP Local Link Connectivities."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TTP Local Link Connectivities."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" Zheng, et al. Expires 12 January 2023 [Page 65] Internet-Draft OTN Topology YANG Model July 2022 + "tet:local-link-connectivities/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the computed path route objects of the TTP Local Link Connectivities."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the TTP Local Link Connectivity entry."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" Zheng, et al. Expires 12 January 2023 [Page 66] Internet-Draft OTN Topology YANG Model July 2022 + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the TTP Local Link Connectivity entry."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the TTP Local Link Connectivity entry."; case otn { uses l1-types:otn-label-step; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description Zheng, et al. Expires 12 January 2023 [Page 67] Internet-Draft OTN Topology YANG Model July 2022 "Augment TE label hop for the underlay primary path of the TTP Local Link Connectivity entry."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay backup path of the TTP Local Link Connectivity entry."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-exclude-objects/" + "tet:route-object-exclude-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TTP Local Link Connectivity entry."; Zheng, et al. Expires 12 January 2023 [Page 68] Internet-Draft OTN Topology YANG Model July 2022 case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:optimizations/tet:algorithm/tet:metric/" + "tet:optimization-metric/" + "tet:explicit-route-include-objects/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TTP Local Link Connectivity entry."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" + "tet:path-properties/tet:path-route-objects/" + "tet:path-route-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the computed path route objects of the TTP Local Link Connectivity entry."; case otn { Zheng, et al. Expires 12 January 2023 [Page 69] Internet-Draft OTN Topology YANG Model July 2022 uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay primary path of the TE link."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label hop for the underlay backup path of the TE link."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description Zheng, et al. Expires 12 January 2023 [Page 70] Internet-Draft OTN Topology YANG Model July 2022 "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the TE link."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the TE link."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the TE link."; case otn { uses l1-types:otn-label-step; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { Zheng, et al. Expires 12 January 2023 [Page 71] Internet-Draft OTN Topology YANG Model July 2022 when "../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range start for the TE link information source."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range end for the TE link information source."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "otnt:otn-topology" { description "Augmentation parameters apply only for networks with OTN topology type."; } description "Augment TE label range step for the TE link information source."; case otn { uses l1-types:otn-label-step; } Zheng, et al. Expires 12 January 2023 [Page 72] Internet-Draft OTN Topology YANG Model July 2022 } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:underlay/tet:primary-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { description "Augment TE label hop for the underlay primary path of the TE link template."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:underlay/tet:backup-path/tet:path-element/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { description "Augment TE label hop for the underlay backup path of the TE link template."; case otn { uses l1-types:otn-label-hop; } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-start/tet:te-label/tet:technology" { description "Augment TE label range start for the TE link template."; case otn { uses l1-types:otn-label-start-end; } } augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-end/tet:te-label/tet:technology" { description "Augment TE label range end for the TE link template."; case otn { uses l1-types:otn-label-start-end; } } Zheng, et al. Expires 12 January 2023 [Page 73] Internet-Draft OTN Topology YANG Model July 2022 augment "/nw:networks/tet:te/tet:templates/" + "tet:link-template/tet:te-link-attributes/" + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { description "Augment TE label range step for the TE link template."; case otn { uses l1-types:otn-label-step; } } } 5. IANA Considerations It is proposed to IANA to assign new URIs from the "IETF XML Registry" [RFC3688] as follows: URI: urn:ietf:params:xml:ns:yang:ietf-otn-topology Registrant Contact: The IESG XML: N/A; the requested URI is an XML namespace. This document registers a YANG module in the YANG Module Names registry [RFC7950]. name: ietf-otn-topology namespace: urn:ietf:params:xml:ns:yang:ietf-otn-topology prefix: otnt reference: RFC XXXX RFC Editor Note: Please replace XXXX with the number assigned to the RFC once this draft becomes an RFC. 6. Security Considerations The YANG module specified in this document defines a schema for data that is designed to be accessed via network management protocols such as NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF layer is the secure transport layer, and the mandatory-to-implement secure transport is Secure Shell (SSH) [RFC6242]. The lowest RESTCONF layer is HTTPS, and the mandatory-to-implement secure transport is TLS [RFC8446]. Zheng, et al. Expires 12 January 2023 [Page 74] Internet-Draft OTN Topology YANG Model July 2022 The NETCONF access control model [RFC8341] provides the means to restrict access for particular NETCONF or RESTCONF users to a preconfigured subset of all available NETCONF or RESTCONF protocol operations and content. There are a number of data nodes defined in this YANG module that are writable/creatable/deletable (i.e., config true, which is the default). These data nodes may be considered sensitive or vulnerable in some network environments. Write operations (e.g., edit-config) to these data nodes without proper protection can have a negative effect on network operations. Considerations in Section 8 of [RFC8795]are also applicable to their subtrees in the module defined in this document. Some of the readable data nodes in this YANG module may be considered sensitive or vulnerable in some network environments. It is thus important to control read access (e.g., via get, get-config, or notification) to these data nodes. Considerations in Section 8 of [RFC8795]are also applicable to their subtrees in the module defined in this document. 7. Acknowledgements We would like to thank Igor Bryskin, Zhe Liu, Zheyu Fan and Daniele Ceccarelli for their comments and discussions. 8. Contributors Aihua Guo Futurewei Email: aihuaguo.ietf@gmail.com Anurag Sharma Google Email: ansha@google.com Yunbin Xu CAICT Email: xuyunbin@caict.ac.cn Lei Wang China Mobile Email: wangleiyj@chinamobile.com Baoquan Rao Huawei Technologies Email: raobaoquan@huawei.com Xian Zhang Huawei Technologies Email: zhang.xian@huawei.com Huub van Helvoort Hai Gaoming BV the Netherlands Email: huubatwork@gmail.com Victor Lopez Nokia Email: victor.lopez@nokia.com Yunbo Li China Mobile Email: liyunbo@chinamobile.com Dieter Beller Nokia Email: dieter.beller@nokia.com Zheng, et al. Expires 12 January 2023 [Page 75] Internet-Draft OTN Topology YANG Model July 2022 Yanlei Zheng China Unicom Email: zhengyanlei@chinaunicom.cn 9. References 9.1. Normative References [I-D.ietf-ccamp-layer1-types] Zheng, H. and I. Busi, "A YANG Data Model for Layer 1 Types", Work in Progress, Internet-Draft, draft-ietf- ccamp-layer1-types-13, 8 April 2022, . [I-D.ietf-ccamp-otn-tunnel-model] Zheng, H., Busi, I., Belotti, S., Lopez, V., and Y. Xu, "OTN Tunnel YANG Model", Work in Progress, Internet-Draft, draft-ietf-ccamp-otn-tunnel-model-16, 8 April 2022, . [ITU-Tg709] ITU-, T., "SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS; Digital networks; Interfaces for the optical transport network", ITU-T Rec. G.709 , March 2020. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, DOI 10.17487/RFC3688, January 2004, . [RFC4203] Kompella, K., Ed. and Y. Rekhter, Ed., "OSPF Extensions in Support of Generalized Multi-Protocol Label Switching (GMPLS)", RFC 4203, DOI 10.17487/RFC4203, October 2005, . [RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed., and A. Bierman, Ed., "Network Configuration Protocol (NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011, . [RFC6242] Wasserman, M., "Using the NETCONF Protocol over Secure Shell (SSH)", RFC 6242, DOI 10.17487/RFC6242, June 2011, . Zheng, et al. Expires 12 January 2023 [Page 76] Internet-Draft OTN Topology YANG Model July 2022 [RFC7138] Ceccarelli, D., Ed., Zhang, F., Belotti, S., Rao, R., and J. Drake, "Traffic Engineering Extensions to OSPF for GMPLS Control of Evolving G.709 Optical Transport Networks", RFC 7138, DOI 10.17487/RFC7138, March 2014, . [RFC7139] Zhang, F., Ed., Zhang, G., Belotti, S., Ceccarelli, D., and K. Pithewan, "GMPLS Signaling Extensions for Control of Evolving G.709 Optical Transport Networks", RFC 7139, DOI 10.17487/RFC7139, March 2014, . [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", RFC 7950, DOI 10.17487/RFC7950, August 2016, . [RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017, . [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . [RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration Access Control Model", STD 91, RFC 8341, DOI 10.17487/RFC8341, March 2018, . [RFC8342] Bjorklund, M., Schoenwaelder, J., Shafer, P., Watsen, K., and R. Wilton, "Network Management Datastore Architecture (NMDA)", RFC 8342, DOI 10.17487/RFC8342, March 2018, . [RFC8345] Clemm, A., Medved, J., Varga, R., Bahadur, N., Ananthakrishnan, H., and X. Liu, "A YANG Data Model for Network Topologies", RFC 8345, DOI 10.17487/RFC8345, March 2018, . [RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018, . [RFC8795] Liu, X., Bryskin, I., Beeram, V., Saad, T., Shah, H., and O. Gonzalez de Dios, "YANG Data Model for Traffic Engineering (TE) Topologies", RFC 8795, DOI 10.17487/RFC8795, August 2020, . Zheng, et al. Expires 12 January 2023 [Page 77] Internet-Draft OTN Topology YANG Model July 2022 9.2. Informative References [I-D.ietf-ccamp-transport-nbi-app-statement] Busi, I., King, D., Zheng, H., and Y. Xu, "Transport Northbound Interface Applicability Statement", Work in Progress, Internet-Draft, draft-ietf-ccamp-transport-nbi- app-statement-15, 4 July 2022, . [I-D.ietf-teas-actn-yang] Lee, Y., Zheng, H., Ceccarelli, D., Yoon, B. Y., and S. Belotti, "Applicability of YANG models for Abstraction and Control of Traffic Engineered Networks", Work in Progress, Internet-Draft, draft-ietf-teas-actn-yang-09, 7 March 2022, . [RFC7062] Zhang, F., Ed., Li, D., Li, H., Belotti, S., and D. Ceccarelli, "Framework for GMPLS and PCE Control of G.709 Optical Transport Networks", RFC 7062, DOI 10.17487/RFC7062, November 2013, . [RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams", BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018, . [RFC8453] Ceccarelli, D., Ed. and Y. Lee, Ed., "Framework for Abstraction and Control of TE Networks (ACTN)", RFC 8453, DOI 10.17487/RFC8453, August 2018, . Authors' Addresses Haomian Zheng Huawei Technologies H1, Huawei Industrial Base, Songshan Lake Dongguan Guangdong, 523808 China Email: zhenghaomian@huawei.com Zheng, et al. Expires 12 January 2023 [Page 78] Internet-Draft OTN Topology YANG Model July 2022 Italo Busi Huawei Technologies HUAWEI TECHNOLOGIES ITALIA Srl Centro Direzionale Milano 2 20090 Milan Milan Italy Email: Italo.Busi@huawei.com Xufeng Liu IBM Corporation 2300 Dulles Station Blvd. Herndon, VA 20171 United States of America Email: xufeng.liu.ietf@gmail.com Sergio Belotti Nokia Email: sergio.belotti@nokia.com Oscar Gonzalez de Dios Telefonica Email: oscar.gonzalezdedios@telefonica.com Zheng, et al. Expires 12 January 2023 [Page 79]