CCAMP Working Group J. E. Lopez de Vergara Internet-Draft Naudit HPCN Intended status: Standards Track D. Perdices Burrero Expires: 16 March 2025 Universidad Autonoma de Madrid D. King Old Dog Consulting Y. Lee Samsung H. Zheng Huawei Technologies 12 September 2024 A YANG Data Model for Flexi-Grid Optical Networks draft-ietf-ccamp-flexigrid-yang-17 Abstract This document defines a YANG module for managing flexi-grid optical networks. The model defined in this document specifies a flexi-grid traffic engineering database that is used to describe the topology of a flexi-grid network. It is based on and augments existing YANG models that describe network and traffic engineering topologies. About This Document This note is to be removed before publishing as an RFC. The latest revision of this draft can be found at https://ietf-ccamp- wg.github.io/draft-ietf-ccamp-flexigrid-yang/draft-ietf-ccamp- flexigrid-yang.html. Status information for this document may be found at https://datatracker.ietf.org/doc/draft-ietf-ccamp-flexigrid- yang/. Discussion of this document takes place on the Common Control and Measurement Plane Working Group mailing list (mailto:ccamp@ietf.org), which is archived at https://mailarchive.ietf.org/arch/browse/ccamp/. Subscribe at https://www.ietf.org/mailman/listinfo/ccamp/. Source for this draft and an issue tracker can be found at https://github.com/ietf-ccamp-wg/draft-ietf-ccamp-flexigrid-yang. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Lopez de Vergara, et al. Expires 16 March 2025 [Page 1] Internet-Draft Flexi-Grid YANG September 2024 Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 16 March 2025. Copyright Notice Copyright (c) 2024 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 . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Tree Diagram . . . . . . . . . . . . . . . . . . . . . . . . 4 3.1. Prefixes in Data Node Names . . . . . . . . . . . . . . . 4 4. Example of Use . . . . . . . . . . . . . . . . . . . . . . . 5 5. YANG Data Model for Flexi-Grid Topology . . . . . . . . . . . 6 5.1. Flexi-Grid Topology Data Model Overview . . . . . . . . . 6 5.2. Augmentations for Flexi-Grid Topology and Node . . . . . 7 5.3. Bandwidth Augmentation . . . . . . . . . . . . . . . . . 7 5.4. Label Augmentation . . . . . . . . . . . . . . . . . . . 8 6. YANG Model (Tree Structure) for Flexi-Grid Topology . . . . . 8 7. The YANG Code for Flexi-grid topology . . . . . . . . . . . . 29 8. Security Considerations . . . . . . . . . . . . . . . . . . . 64 9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 65 10. References . . . . . . . . . . . . . . . . . . . . . . . . . 65 10.1. Normative References . . . . . . . . . . . . . . . . . . 65 10.2. Informative References . . . . . . . . . . . . . . . . . 67 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 68 Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 69 Lopez de Vergara, et al. Expires 16 March 2025 [Page 2] Internet-Draft Flexi-Grid YANG September 2024 1. Introduction The flexible grid (flexi-grid) optical network technology defined by the International Telecommunication Union Telecommunication Standardization Sector (ITU-T) and documented in Recommendation ITU- T_G.694.1 [ITU-T_G.694.1] and ITU-T_G.872 [ITU-T_G.872] provides an enhanced Dense Wavelength Division Multiplexing (DWDM) grid by defining a set of nominal central frequencies, slot widths, and the concept of the "frequency slot". This technology increases both transport network scalability and flexibility, allowing the optimization of bandwidth usage. [RFC7698] provides a framework for GMPLS-Based control of flexi-grid DWDM networks while [RFC7699] defines generalized labels for the use of GMPLS in flexi-grid networks. [RFC8363] provides extensions to the OSPF-TE protocol so as to support GMPLS control of flexi-grid networks. This document presents a YANG data model [RFC7950] for flexi-grid objects in the dynamic optical network, including nodes, transponders and links, as well as how such links interconnect nodes. This model is independent of control plane protocols. This document identifies the flexi-grid components, parameters, and their values. It characterizes the features and the performances of the flexi-grid elements. For this, it augments [RFC8795], and imports the generic Layer 0 types and use of "media-channel" defined in [I-D.ietf-ccamp-rfc9093-bis]. An application example in Section 4 is also provided to better understand the utility of this YANG model. A partner document defines a second YANG module that described flexi- grid tunnels, i.e., the paths from source to destination through a number of intermediate nodes [I-D.ietf-ccamp-flexigrid-tunnel-yang]. Impairment-aware traffic engineering topology is described in [I-D.ietf-ccamp-optical-impairment-topology-yang]. The YANG data model defined in this document conforms to the Network Management Datastore Architecture (NMDA) [RFC8342]. 2. Terminology Refer to [RFC7698] and [RFC7699] for the key terms used in this document. Lopez de Vergara, et al. Expires 16 March 2025 [Page 3] Internet-Draft Flexi-Grid YANG September 2024 The following terms are defined in [RFC7950] and are not redefined here: * client * server * augment * data model * data node The following terms are defined in [RFC6241] and are not redefined here: * configuration data * state data The terminology for describing YANG data models is found in [RFC7950]. 3. Tree Diagram A simplified graphical representation of the data model is used in this document. The meaning of the symbols in these diagrams is defined in [RFC8340]. 3.1. Prefixes in Data Node Names In this document, names of data nodes and other data model objects are prefixed using the standard prefix associated with the corresponding YANG imported modules, as shown in Table 1. It uses prefixes from [I-D.ietf-ccamp-rfc9093-bis], [RFC8345], and [RFC8795]. Lopez de Vergara, et al. Expires 16 March 2025 [Page 4] Internet-Draft Flexi-Grid YANG September 2024 +==========+==========================+===========+ | Prefix | YANG module | Reference | +==========+==========================+===========+ | l0-types | ietf-layer0-types | [RFCYYYY] | +----------+--------------------------+-----------+ | flexgt | ietf-flexi-grid-topology | RFC XXXX | +----------+--------------------------+-----------+ | nw | ietf-network | [RFC8345] | +----------+--------------------------+-----------+ | nt | ietf-network-topology | [RFC8345] | +----------+--------------------------+-----------+ | tet | ietf-te-topology | [RFC8795] | +----------+--------------------------+-----------+ Table 1: Prefixes and corresponding YANG modules RFC Editor Note: Please replace XXXX with the RFC number assigned to this document. Please replace YYYY with the RFC numbers assigned to [I-D.ietf-ccamp-rfc9093-bis]. Please remove this note. 4. Example of Use In order to explain how this model is used, we provide the following example. An optical network usually has multiple transponders, switches (nodes) and links. Figure 1 shows a simple topology. +----------+ +----------+ | Flexi- | | Flexi- | | grid | | grid | | node A | | node E | | | +------+ +------+ | | | | Link 1 |Flexi-| Link 2 |Flexi-| Link 3 | | | |<------>| grid |<------>| grid |<------>| | |......... | |node B| |node C| | .........| | Trans- : | +------+ +------+ | : Trans- | | ponder : | | : ponder | | A : | +----------+ | : E | |........: | Link 4 |Flexi-grid| Link 5 | :........| | |<------------>| node |<------------>| | | | | D | | | | | +----------+ | | +----------+ +----------+ Figure 1: Topology Example In order to configure a flexi-grid network to interconnect transponders A and E, first of all we have to populate the flexi-grid topology YANG model with all elements in the network: Lopez de Vergara, et al. Expires 16 March 2025 [Page 5] Internet-Draft Flexi-Grid YANG September 2024 * We define the transponders within nodes A and E as tunnel termination points (TTPs) and provide their internal local link connectivity towards the node interfaces. We also provide the identifiers, addresses and interfaces of nodes A and B. * We do the same for the nodes B, C and D, providing their identifiers, addresses and interfaces, as well as the internal connectivity matrix between interfaces. * Then, we also define the links 1 to 5 that interconnect nodes, indicating which flexi-grid labels are available. * Other information, such as the slot frequency and granularity are also provided. 5. YANG Data Model for Flexi-Grid Topology 5.1. Flexi-Grid Topology Data Model Overview This document describes the data model for flexi-grid topology. As a classic traffic engineering (TE) technology, flexi-grid provides WDM switching in transport network. Therefore the YANG module presented in this document augments from a more generic TE network topology data model, i.e., the ietf-te-topology, as specified in [RFC8795], following the guidelines provided in section 6 of [RFC8795]. Common types, identities, and groupings defined in [I-D.ietf-ccamp-rfc9093-bis] are reused in this document. The figure below shows the augmentation relationship between YANG models. +-------------------------+ TE generic | ietf-te-topology | +-------------------------+ ^ | | Augments | +------------+-------------+ Flexi-Grid | ietf-flexi-grid-topology | +--------------------------+ Figure 2: Relationship between Flexi-Grid and TE topology models Lopez de Vergara, et al. Expires 16 March 2025 [Page 6] Internet-Draft Flexi-Grid YANG September 2024 The entities and TE attributes, such as node, termination points and links, are still applicable for describing a flexi-grid topology and the model presented in this document only specifies the technology- specific attributes/information. The flexi-grid specific attributes and label format is defined in [RFC7699], including the grid type, nominal central frequency granularity, slot width granularity, n and m parameters. A collection of common data types have also been specified in [I-D.ietf-ccamp-rfc9093-bis], and used in this document for augmentation of the generic TE topology model. The YANG module ietf-flexi-grid-topology defined in this document conforms to the Network Management Datastore Architecture (NMDA) defined in [RFC8342]. 5.2. Augmentations for Flexi-Grid Topology and Node There are a few characteristics augmenting to the generic TE topology. Following the guidelines in [RFC8795], a flexi-grid-topology network- type is specified as the indicator of flexi-grid in the topology as shown in Figure 3. augment /nw:networks/nw:network/nw:network-types/tet:te-topology: +--rw flexi-grid-topology! Figure 3: Flexi-Grid Topology Augmentation A flexi-grid-node presence container is specified, augmenting the generic TE node attributes, to indicate that the TE node is a Flexi- Grid node as shown in Figure 4. augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes: +--rw flexi-grid-node! Figure 4: Flex-Grid Node Augmentation It is assumed that all the flexi-grid nodes are reconfigurable. 5.3. Bandwidth Augmentation No bandwidth augmentations are needed for this YANG module. As described in Section 4.2 of [RFC7699], there is some overlap between bandwidth and label in Layer 0. Lopez de Vergara, et al. Expires 16 March 2025 [Page 7] Internet-Draft Flexi-Grid YANG September 2024 The flexi-grid label resource information described in Section 5.4, is sufficient to also describe the spectrum resources within a flexi- grid network. Therefore, the model does not define any augmentation for the te-bandwidth containers defined in [RFC8795]. 5.4. Label Augmentation The model augments all the occurrences of the label-restriction list in [RFC8795] with flexi-grid technology specific attributes using the flexi-grid-label-range-info grouping defined in [I-D.ietf-ccamp-rfc9093-bis]. Moreover, following the guidelines in [RFC8795], the model augments all the occurrences of the te-label container with the flexi-grid technology specific attributes using the flexi-grid-label-start-end, flexi-grid-label-hop and flexi-grid-label-step groupings defined in [I-D.ietf-ccamp-rfc9093-bis]. 6. YANG Model (Tree Structure) for Flexi-Grid Topology module: ietf-flexi-grid-topology augment /nw:networks/nw:network/nw:network-types/tet:te-topology: +--rw flexi-grid-topology! augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes: +--rw flexi-grid-node! augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes/tet:connectivity-matrices /tet:label-restrictions/tet:label-restriction: +--rw flexi-grid-label-range! +--rw grid-type? identityref +--rw priority? uint8 +--rw flexi-grid +--rw slot-width-granularity? identityref +--rw min-slot-width-factor? uint16 +--rw max-slot-width-factor? uint16 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 flexi-grid-label-range! +--rw grid-type? identityref +--rw priority? uint8 +--rw flexi-grid +--rw slot-width-granularity? identityref +--rw min-slot-width-factor? uint16 +--rw max-slot-width-factor? uint16 Lopez de Vergara, et al. Expires 16 March 2025 [Page 8] Internet-Draft Flexi-Grid YANG September 2024 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 flexi-grid-label-range! +--rw grid-type? identityref +--rw priority? uint8 +--rw flexi-grid +--rw slot-width-granularity? identityref +--rw min-slot-width-factor? uint16 +--rw max-slot-width-factor? uint16 augment /nw:networks/nw:network/nw:node/tet:te /tet:information-source-entry/tet:connectivity-matrices /tet:label-restrictions/tet:label-restriction: +--ro flexi-grid-label-range! +--ro grid-type? identityref +--ro priority? uint8 +--ro flexi-grid +--ro slot-width-granularity? identityref +--ro min-slot-width-factor? uint16 +--ro max-slot-width-factor? uint16 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 flexi-grid-label-range! +--ro grid-type? identityref +--ro priority? uint8 +--ro flexi-grid +--ro slot-width-granularity? identityref +--ro min-slot-width-factor? uint16 +--ro max-slot-width-factor? uint16 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 flexi-grid-label-range! +--ro grid-type? identityref +--ro priority? uint8 +--ro flexi-grid +--ro slot-width-granularity? identityref +--ro min-slot-width-factor? uint16 +--ro max-slot-width-factor? uint16 augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point /tet:local-link-connectivities/tet:label-restrictions /tet:label-restriction: +--rw flexi-grid-label-range! Lopez de Vergara, et al. Expires 16 March 2025 [Page 9] Internet-Draft Flexi-Grid YANG September 2024 +--rw grid-type? identityref +--rw priority? uint8 +--rw flexi-grid +--rw slot-width-granularity? identityref +--rw min-slot-width-factor? uint16 +--rw max-slot-width-factor? uint16 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 flexi-grid-label-range! +--rw grid-type? identityref +--rw priority? uint8 +--rw flexi-grid +--rw slot-width-granularity? identityref +--rw min-slot-width-factor? uint16 +--rw max-slot-width-factor? uint16 augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction: +--rw flexi-grid-label-range! +--rw grid-type? identityref +--rw priority? uint8 +--rw flexi-grid +--rw slot-width-granularity? identityref +--rw min-slot-width-factor? uint16 +--rw max-slot-width-factor? uint16 augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry/tet:label-restrictions /tet:label-restriction: +--ro flexi-grid-label-range! +--ro grid-type? identityref +--ro priority? uint8 +--ro flexi-grid +--ro slot-width-granularity? identityref +--ro min-slot-width-factor? uint16 +--ro max-slot-width-factor? uint16 augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction: +--rw flexi-grid-label-range! +--rw grid-type? identityref +--rw priority? uint8 +--rw flexi-grid +--rw slot-width-granularity? identityref +--rw min-slot-width-factor? uint16 +--rw max-slot-width-factor? uint16 Lopez de Vergara, et al. Expires 16 March 2025 [Page 10] Internet-Draft Flexi-Grid YANG September 2024 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) x--rw flexi-grid-channel-spacing? identityref +--rw flexi-ncfg? identityref +--rw flexi-n-step? uint8 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) Lopez de Vergara, et al. Expires 16 March 2025 [Page 11] Internet-Draft Flexi-Grid YANG September 2024 | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] Lopez de Vergara, et al. Expires 16 March 2025 [Page 12] Internet-Draft Flexi-Grid YANG September 2024 +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) x--rw flexi-grid-channel-spacing? identityref +--rw flexi-ncfg? identityref +--rw flexi-n-step? 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/tet:label-start/tet:te-label /tet:technology: Lopez de Vergara, et al. Expires 16 March 2025 [Page 13] Internet-Draft Flexi-Grid YANG September 2024 +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) x--rw flexi-grid-channel-spacing? identityref +--rw flexi-ncfg? identityref +--rw flexi-n-step? uint8 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] Lopez de Vergara, et al. Expires 16 March 2025 [Page 14] Internet-Draft Flexi-Grid YANG September 2024 | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n Lopez de Vergara, et al. Expires 16 March 2025 [Page 15] Internet-Draft Flexi-Grid YANG September 2024 +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) +--ro flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) x--ro flexi-grid-channel-spacing? identityref +--ro flexi-ncfg? identityref +--ro flexi-n-step? uint8 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n Lopez de Vergara, et al. Expires 16 March 2025 [Page 16] Internet-Draft Flexi-Grid YANG September 2024 | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n Lopez de Vergara, et al. Expires 16 March 2025 [Page 17] Internet-Draft Flexi-Grid YANG September 2024 +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro flexi-n? l0-types:flexi-n Lopez de Vergara, et al. Expires 16 March 2025 [Page 18] Internet-Draft Flexi-Grid YANG September 2024 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: +--:(flexi-grid) +--ro flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) x--ro flexi-grid-channel-spacing? identityref +--ro flexi-ncfg? identityref +--ro flexi-n-step? 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/tet:label-start/tet:te-label /tet:technology: +--:(flexi-grid) +--ro flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) +--ro flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) x--ro flexi-grid-channel-spacing? identityref +--ro flexi-ncfg? identityref +--ro flexi-n-step? uint8 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) Lopez de Vergara, et al. Expires 16 March 2025 [Page 19] Internet-Draft Flexi-Grid YANG September 2024 | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m Lopez de Vergara, et al. Expires 16 March 2025 [Page 20] Internet-Draft Flexi-Grid YANG September 2024 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n augment /nw:networks/nw:network/nw:node/tet:te Lopez de Vergara, et al. Expires 16 March 2025 [Page 21] Internet-Draft Flexi-Grid YANG September 2024 /tet:tunnel-termination-point /tet:local-link-connectivities/tet:label-restrictions /tet:label-restriction/tet:label-end/tet:te-label /tet:technology: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) x--rw flexi-grid-channel-spacing? identityref +--rw flexi-ncfg? identityref +--rw flexi-n-step? uint8 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) Lopez de Vergara, et al. Expires 16 March 2025 [Page 22] Internet-Draft Flexi-Grid YANG September 2024 +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m augment /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point Lopez de Vergara, et al. Expires 16 March 2025 [Page 23] Internet-Draft Flexi-Grid YANG September 2024 /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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) x--rw flexi-grid-channel-spacing? identityref +--rw flexi-ncfg? identityref +--rw flexi-n-step? uint8 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: Lopez de Vergara, et al. Expires 16 March 2025 [Page 24] Internet-Draft Flexi-Grid YANG September 2024 +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) Lopez de Vergara, et al. Expires 16 March 2025 [Page 25] Internet-Draft Flexi-Grid YANG September 2024 | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--ro (single-or-super-channel)? +--:(single) | +--ro flexi-n? l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m x--:(super) | +--ro subcarrier-flexi-n* [flexi-n] | +--ro flexi-n l0-types:flexi-n | +--ro flexi-m? l0-types:flexi-m +--:(multi) +--ro frequency-slots +--ro frequency-slot* [flexi-n] Lopez de Vergara, et al. Expires 16 March 2025 [Page 26] Internet-Draft Flexi-Grid YANG September 2024 +--ro flexi-n l0-types:flexi-n +--ro flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: Lopez de Vergara, et al. Expires 16 March 2025 [Page 27] Internet-Draft Flexi-Grid YANG September 2024 +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(flexi-grid) x--rw flexi-grid-channel-spacing? identityref +--rw flexi-ncfg? identityref +--rw flexi-n-step? uint8 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: +--:(flexi-grid) +--ro flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) +--ro flexi-n? l0-types:flexi-n augment /nw:networks/nw:network/nt:link/tet:te /tet:information-source-entry/tet:label-restrictions /tet:label-restriction/tet:label-step/tet:technology: +--:(flexi-grid) x--ro flexi-grid-channel-spacing? identityref +--ro flexi-ncfg? identityref +--ro flexi-n-step? uint8 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: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m augment /nw:networks/tet:te/tet:templates/tet:link-template /tet:te-link-attributes/tet:underlay/tet:backup-path Lopez de Vergara, et al. Expires 16 March 2025 [Page 28] Internet-Draft Flexi-Grid YANG September 2024 /tet:path-element/tet:type/tet:label/tet:label-hop /tet:te-label/tet:technology: +--:(flexi-grid) +--rw (single-or-super-channel)? +--:(single) | +--rw flexi-n? l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m x--:(super) | +--rw subcarrier-flexi-n* [flexi-n] | +--rw flexi-n l0-types:flexi-n | +--rw flexi-m? l0-types:flexi-m +--:(multi) +--rw frequency-slots +--rw frequency-slot* [flexi-n] +--rw flexi-n l0-types:flexi-n +--rw flexi-m? l0-types:flexi-m 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) +--rw flexi-n? l0-types:flexi-n 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: +--:(flexi-grid) x--rw flexi-grid-channel-spacing? identityref +--rw flexi-ncfg? identityref +--rw flexi-n-step? uint8 Figure 5 7. The YANG Code for Flexi-grid topology file "ietf-flexi-grid-topology@2023-12-15.yang" module ietf-flexi-grid-topology { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-flexi-grid-topology"; prefix "flexgt"; import ietf-network { prefix "nw"; Lopez de Vergara, et al. Expires 16 March 2025 [Page 29] Internet-Draft Flexi-Grid YANG September 2024 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-layer0-types { prefix "l0-types"; reference "RFC YYYY: A YANG Data Model for Layer 0 Types"; } /* Note: The RFC Editor will replace YYYY with the number assigned to the RFC once draft-ietf-ccamp-rfc9093-bis becomes an RFC.*/ organization "IETF CCAMP Working Group"; contact "WG Web: WG List: Editor: Jorge E. Lopez de Vergara Editor: Daniel Perdices Editor: Haomian Zheng Editor: Daniel King Editor: Young Lee "; description Lopez de Vergara, et al. Expires 16 March 2025 [Page 30] Internet-Draft Flexi-Grid YANG September 2024 "This YANG module defines a topology model for flexi-grid optical networks. The model augments the technology-agnostic TE topology model with flexi-grid technology specific definitions, based on RFC 7698 and RFC 7699. The model fully conforms to the Network Management Datastore Architecture (NMDA). Copyright (c) 2023 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. The key words 'MUST', 'MUST NOT', 'REQUIRED', 'SHALL', 'SHALL NOT', 'SHOULD', 'SHOULD NOT', 'RECOMMENDED', 'NOT RECOMMENDED', 'MAY', and 'OPTIONAL' in this document are to be interpreted as described in BCP 14 (RFC 2119) (RFC 8174) when, and only when, they appear in all capitals, as shown here."; reference "RFC 7698: Framework and Requirements for GMPLS-Based Control of Flexi-Grid Dense Wavelength Division Multiplexing (DWDM) Networks; RFC 7699: Generalized Labels for the Flexi-Grid in Lambda Switch Capable (LSC) Label Switching Routers."; revision 2023-12-15 { description "Initial Version"; reference "RFC XXXX: A YANG Data Model for Flexi-Grid Optical Networks"; // RFC Ed.: replace XXXX with actual RFC number, update date // information and remove this note } /* * Groupings */ grouping label-range-info { description Lopez de Vergara, et al. Expires 16 March 2025 [Page 31] Internet-Draft Flexi-Grid YANG September 2024 "Flexi-grid-specific label range related information with a presence container indicating whether the label range is a flexi-grid label range."; container flexi-grid-label-range { presence "Indicates the label range is a flexi-grid label range. This container MUST NOT be present if there are other presence containers or attributes indicating another type of label range."; description "Flexi-grid-specific label range related information."; uses l0-types:flexi-grid-label-range-info; } } /* * Data nodes */ augment "/nw:networks/nw:network/nw:network-types" + "/tet:te-topology" { description "Augment network types to define flexi-grid topology type."; container flexi-grid-topology { presence "Its presence identifies the flexi-grid topology type."; description "Introduce new network type for flexi-grid topology."; } } augment "/nw:networks/nw:network/nw:node/tet:te" + "/tet:te-node-attributes" { when "/nw:networks/nw:network/nw:network-types" + "/tet:te-topology/flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE node attributes."; container flexi-grid-node { presence "The TE node is a flexi-grid node."; description "Introduce new TE node type for flexi-grid node."; } } Lopez de Vergara, et al. Expires 16 March 2025 [Page 32] Internet-Draft Flexi-Grid YANG September 2024 /* * 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the TE node connectivity matrices."; uses label-range-info; } 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the source Link Termination Point (LTP) of the connectivity matrix entry."; uses 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the destination LTP of the connectivity matrix entry."; Lopez de Vergara, et al. Expires 16 March 2025 [Page 33] Internet-Draft Flexi-Grid YANG September 2024 uses 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the TE node connectivity matrices information source."; uses label-range-info; } 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the source LTP of the connectivity matrix entry information source."; uses 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the destination LTP of the connectivity matrix entry information source."; uses label-range-info; Lopez de Vergara, et al. Expires 16 March 2025 [Page 34] Internet-Draft Flexi-Grid YANG September 2024 } 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the Tunnel Termination Point (TTP) Local Link Connectivities."; uses label-range-info; } 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the TTP Local Link Connectivity entry."; uses 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the TE link."; uses label-range-info; } Lopez de Vergara, et al. Expires 16 March 2025 [Page 35] Internet-Draft Flexi-Grid YANG September 2024 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range information for the TE link information source."; uses label-range-info; } 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 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the TE node connectivity matrices."; case flexi-grid { uses l0-types:flexi-grid-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" Lopez de Vergara, et al. Expires 16 March 2025 [Page 36] Internet-Draft Flexi-Grid YANG September 2024 + "tet:label-restrictions/" + "tet:label-restriction/tet:label-end/" + "tet:te-label/tet:technology" { when "../../../../../../../../nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range end for the TE node connectivity matrices."; case flexi-grid { uses l0-types:flexi-grid-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-step/" + "tet:technology" { when "../../../../../../../nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the TE node connectivity matrices."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } Lopez de Vergara, et al. Expires 16 March 2025 [Page 37] Internet-Draft Flexi-Grid YANG September 2024 description "Augment TE label hop for the underlay primary path of the TE node connectivity matrices."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay backup path of the TE node connectivity matrices."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TE node connectivity matrices."; case flexi-grid { Lopez de Vergara, et al. Expires 16 March 2025 [Page 38] Internet-Draft Flexi-Grid YANG September 2024 uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TE node connectivity matrices."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the computed path route objects of the TE node connectivity matrices."; case flexi-grid { uses l0-types:flexi-grid-label-hop; } } Lopez de Vergara, et al. Expires 16 March 2025 [Page 39] Internet-Draft Flexi-Grid YANG September 2024 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the source LTP of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range end for the source LTP of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-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" { Lopez de Vergara, et al. Expires 16 March 2025 [Page 40] Internet-Draft Flexi-Grid YANG September 2024 when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the source LTP of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-label-step; } } 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the destination LTP of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; Lopez de Vergara, et al. Expires 16 March 2025 [Page 41] Internet-Draft Flexi-Grid YANG September 2024 } description "Augment TE label range end for the destination LTP of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-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" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the destination LTP of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay primary path of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-label-hop; Lopez de Vergara, et al. Expires 16 March 2025 [Page 42] Internet-Draft Flexi-Grid YANG September 2024 } } 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay backup path of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:te-node-attributes/tet:connectivity-matrices/" Lopez de Vergara, et al. Expires 16 March 2025 [Page 43] Internet-Draft Flexi-Grid YANG September 2024 + "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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the computed path route objects of the connectivity matrix entry."; case flexi-grid { uses l0-types:flexi-grid-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/" Lopez de Vergara, et al. Expires 16 March 2025 [Page 44] Internet-Draft Flexi-Grid YANG September 2024 + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the TE node connectivity matrices information source."; case flexi-grid { uses l0-types:flexi-grid-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-end/tet:te-label/tet:technology" { when "../../../../../../../../" + "nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range end for the TE node connectivity matrices information source."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the TE node connectivity matrices information source."; Lopez de Vergara, et al. Expires 16 March 2025 [Page 45] Internet-Draft Flexi-Grid YANG September 2024 case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay primary path of the TE node connectivity matrices of the information source entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay backup path of the TE node connectivity matrices of the information source entry."; case flexi-grid { uses l0-types:flexi-grid-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:information-source-entry/tet:connectivity-matrices/" + "tet:optimizations/tet:algorithm/tet:metric/" Lopez de Vergara, et al. Expires 16 March 2025 [Page 46] Internet-Draft Flexi-Grid YANG September 2024 + "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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid 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."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid 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 flexi-grid { uses l0-types:flexi-grid-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" { Lopez de Vergara, et al. Expires 16 March 2025 [Page 47] Internet-Draft Flexi-Grid YANG September 2024 when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the computed path route objects of the TE node connectivity matrices information source."; case flexi-grid { uses l0-types:flexi-grid-label-hop; } } 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the source LTP of the connectivity matrix entry information source."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } Lopez de Vergara, et al. Expires 16 March 2025 [Page 48] Internet-Draft Flexi-Grid YANG September 2024 description "Augment TE label range end for the source LTP of the connectivity matrix entry information source."; case flexi-grid { uses l0-types:flexi-grid-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 "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the source LTP of the connectivity matrix entry information source."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the destination LTP of the connectivity matrix entry information source."; case flexi-grid { uses l0-types:flexi-grid-label-start-end; } } Lopez de Vergara, et al. Expires 16 March 2025 [Page 49] Internet-Draft Flexi-Grid YANG September 2024 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range end for the destination LTP of the connectivity matrix entry information source."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the destination LTP of the connectivity matrix entry information source."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { Lopez de Vergara, et al. Expires 16 March 2025 [Page 50] Internet-Draft Flexi-Grid YANG September 2024 description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay primary path of the connectivity matrix entry information source."; case flexi-grid { uses l0-types:flexi-grid-label-hop; } } 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" { when "../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay backup path of the connectivity matrix entry information source."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description Lopez de Vergara, et al. Expires 16 March 2025 [Page 51] Internet-Draft Flexi-Grid YANG September 2024 "Augment TE label hop for the explicit route objects excluded by the path computation of the connectivity matrix entry information source."; case flexi-grid { uses l0-types:flexi-grid-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/" + "tet:route-object-include-object/tet:type/" + "tet:label/tet:label-hop/tet:te-label/tet:technology" { when "../../../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid 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 flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the computed path route objects of the connectivity matrix entry information source."; Lopez de Vergara, et al. Expires 16 March 2025 [Page 52] Internet-Draft Flexi-Grid YANG September 2024 case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the TTP Local Link Connectivities."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range end for the TTP Local Link Connectivities."; case flexi-grid { uses l0-types:flexi-grid-label-start-end; } } augment "/nw:networks/nw:network/nw:node/tet:te/" Lopez de Vergara, et al. Expires 16 March 2025 [Page 53] Internet-Draft Flexi-Grid YANG September 2024 + "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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the TTP Local Link Connectivities."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay primary path of the TTP Local Link Connectivities."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { Lopez de Vergara, et al. Expires 16 March 2025 [Page 54] Internet-Draft Flexi-Grid YANG September 2024 description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay backup path of the TTP Local Link Connectivities."; case flexi-grid { uses l0-types:flexi-grid-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-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TTP Local Link Connectivities."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description Lopez de Vergara, et al. Expires 16 March 2025 [Page 55] Internet-Draft Flexi-Grid YANG September 2024 "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the explicit route objects included by the path computation of the TTP Local Link Connectivities."; case flexi-grid { uses l0-types:flexi-grid-label-hop; } } 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" { when "../../../../../../../../../" + "nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the computed path route objects of the TTP Local Link Connectivities."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the TTP Lopez de Vergara, et al. Expires 16 March 2025 [Page 56] Internet-Draft Flexi-Grid YANG September 2024 Local Link Connectivity entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range end for the TTP Local Link Connectivity entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the TTP Local Link Connectivity entry."; case flexi-grid { uses l0-types:flexi-grid-label-step; } } Lopez de Vergara, et al. Expires 16 March 2025 [Page 57] Internet-Draft Flexi-Grid YANG September 2024 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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay primary path of the TTP Local Link Connectivity entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay backup path of the TTP Local Link Connectivity entry."; case flexi-grid { uses l0-types:flexi-grid-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/" Lopez de Vergara, et al. Expires 16 March 2025 [Page 58] Internet-Draft Flexi-Grid YANG September 2024 + "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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the explicit route objects excluded by the path computation of the TTP Local Link Connectivity entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid 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 flexi-grid { uses l0-types:flexi-grid-label-hop; } } augment "/nw:networks/nw:network/nw:node/tet:te/" + "tet:tunnel-termination-point/" + "tet:local-link-connectivities/" + "tet:local-link-connectivity/" Lopez de Vergara, et al. Expires 16 March 2025 [Page 59] Internet-Draft Flexi-Grid YANG September 2024 + "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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the computed path route objects of the TTP Local Link Connectivity entry."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label hop for the underlay primary path of the TE link."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description Lopez de Vergara, et al. Expires 16 March 2025 [Page 60] Internet-Draft Flexi-Grid YANG September 2024 "Augment TE label hop for the underlay backup path of the TE link."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the TE link."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range end for the TE link."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description Lopez de Vergara, et al. Expires 16 March 2025 [Page 61] Internet-Draft Flexi-Grid YANG September 2024 "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the TE link."; case flexi-grid { uses l0-types:flexi-grid-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" { when "../../../../../../../nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range start for the TE link information source."; case flexi-grid { uses l0-types:flexi-grid-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/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range end for the TE link information source."; case flexi-grid { uses l0-types:flexi-grid-label-start-end; } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:information-source-entry/" Lopez de Vergara, et al. Expires 16 March 2025 [Page 62] Internet-Draft Flexi-Grid YANG September 2024 + "tet:label-restrictions/tet:label-restriction/" + "tet:label-step/tet:technology" { when "../../../../../../nw:network-types/tet:te-topology/" + "flexgt:flexi-grid-topology" { description "Augmentation parameters apply only for networks with flexi-grid topology type."; } description "Augment TE label range step for the TE link information source."; case flexi-grid { uses l0-types:flexi-grid-label-step; } } 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 flexi-grid { uses l0-types:flexi-grid-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 flexi-grid { uses l0-types:flexi-grid-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 flexi-grid { uses l0-types:flexi-grid-label-start-end; Lopez de Vergara, et al. Expires 16 March 2025 [Page 63] Internet-Draft Flexi-Grid YANG September 2024 } } 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 flexi-grid { uses l0-types:flexi-grid-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-step/tet:technology" { description "Augment TE label range step for the TE link template."; case flexi-grid { uses l0-types:flexi-grid-label-step; } } } Figure 6 8. 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 Transport Layer Security (TLS) [RFC8446]. The NETCONF access control model [RFC8341] provides the means to restrict access for particular NETCONF users to a preconfigured subset of all available NETCONF protocol operations and content. The NETCONF Protocol SSH [RFC6242] describes a method for invoking and running NETCONF within a SSH session as an SSH subsystem. The Network Configuration Access Control Model (NACM) [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. Lopez de Vergara, et al. Expires 16 March 2025 [Page 64] Internet-Draft Flexi-Grid YANG September 2024 A number of configuration data nodes defined in this document are writable/deletable (i.e., "config true"). These data nodes may be considered sensitive or vulnerable in some network environments. 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. These are the subtrees and data nodes and their sensitivity/vulnerability: /nw:networks/nw:network/nw:network-types/tet:te-topology /nw:networks/nw:network/nt:link/tet:te/tet:te-link-attributes /nw:networks/nw:network/nw:node/nt:termination-point/tet:te /nw:networks/nw:network/nw:node/tet:te/tet:te-node-attributes /te-connectivity-matrices/te-connectivity-matrix/tet:path- constraints/tet:te-bandwidth/tet:technology /nw:networks/nw:network/nw:node/tet:te /tet:tunnel-termination-point/tet:local-link-connectivities /tet:label-restrictions/tet:label-restriction 9. IANA Considerations IANA is requested to assigned a new URI from the "IETF XML Registry" [RFC3688] as follows: URI: urn:ietf:params:xml:ns:yang:ietf-flexi-grid-topology Registrant Contact: The IESG XML: N/A; the requested URI is an XML namespace. IANA is requested to assign a new YANG module name in the "YANG Module Names" registry [RFC6020] as follows: Name: ietf-flexi-grid-topology Namespace: urn:ietf:params:xml:ns:yang:ietf-flexi-grid-topology Prefix: flexgt Reference: RFC XXXX 10. References 10.1. Normative References Lopez de Vergara, et al. Expires 16 March 2025 [Page 65] Internet-Draft Flexi-Grid YANG September 2024 [I-D.ietf-ccamp-rfc9093-bis] Belotti, S., Busi, I., Beller, D., Zheng, H., Le Rouzic, E., Guo, A., and D. King, "A YANG Data Model for Layer 0 Types", Work in Progress, Internet-Draft, draft-ietf- ccamp-rfc9093-bis-07, 23 October 2023, . [ITU-T_G.694.1] ITU-T Recommendation G.694.1, "Spectral grids for WDM applications: DWDM frequency grid", ITU-T G.694.1 , October 2020. [ITU-T_G.872] International Telecommunication Union, "Architecture of optical transport networks", ITU-T G.872 Amendment 1 , January 2021. [RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, DOI 10.17487/RFC3688, January 2004, . [RFC6020] Bjorklund, M., Ed., "YANG - A Data Modeling Language for the Network Configuration Protocol (NETCONF)", RFC 6020, DOI 10.17487/RFC6020, October 2010, . [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, . [RFC7699] Farrel, A., King, D., Li, Y., and F. Zhang, "Generalized Labels for the Flexi-Grid in Lambda Switch Capable (LSC) Label Switching Routers", RFC 7699, DOI 10.17487/RFC7699, November 2015, . [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, . Lopez de Vergara, et al. Expires 16 March 2025 [Page 66] Internet-Draft Flexi-Grid YANG September 2024 [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, . [RFC8363] Zhang, X., Zheng, H., Casellas, R., Gonzalez de Dios, O., and D. Ceccarelli, "GMPLS OSPF-TE Extensions in Support of Flexi-Grid Dense Wavelength Division Multiplexing (DWDM) Networks", RFC 8363, DOI 10.17487/RFC8363, May 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, . 10.2. Informative References [I-D.ietf-ccamp-flexigrid-tunnel-yang] de Madrid, U. A., Burrero, D. P., King, D., Lopez, V., Busi, I., Belotti, S., and G. Galimberti, "A YANG Data Model for Flexi-Grid Tunnels", Work in Progress, Internet- Draft, draft-ietf-ccamp-flexigrid-tunnel-yang-03, 10 July 2023, . [I-D.ietf-ccamp-optical-impairment-topology-yang] Beller, D., Le Rouzic, E., Belotti, S., Galimberti, G., and I. Busi, "A YANG Data Model for Optical Impairment- aware Topology", Work in Progress, Internet-Draft, draft- ietf-ccamp-optical-impairment-topology-yang-14, 23 October 2023, . Lopez de Vergara, et al. Expires 16 March 2025 [Page 67] Internet-Draft Flexi-Grid YANG September 2024 [RFC7698] Gonzalez de Dios, O., Ed., Casellas, R., Ed., Zhang, F., Fu, X., Ceccarelli, D., and I. Hussain, "Framework and Requirements for GMPLS-Based Control of Flexi-Grid Dense Wavelength Division Multiplexing (DWDM) Networks", RFC 7698, DOI 10.17487/RFC7698, November 2015, . [RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams", BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018, . Acknowledgments The work presented in this document has been partially funded by the European Commission under the project H2020 METRO-HAUL (Metro High bandwidth, 5G Application-aware optical network, with edge storage, compUte and low Latency), Grant Agreement number: 761727. This work is also partially funded by the Spanish State Research Agency under the project AgileMon (AEI PID2019-104451RB-C21) and by the Spanish Ministry of Science, Innovation and Universities under the program for the training of university lecturers (Grant number: FPU19/05678). Thanks to Adrian Farrel for reviewing this document and assisting with conversion to XML. Contributors Oscar Gonzalez de Dios Telefonica Email: oscar.gonzalezdedios@telefonica.com Gabriele Galimberti Email: ggalimbe56@gmail.com Sergio Belotti Nokia Email: sergio.belotti@nokia.com Zafar Ali Cisco Email: zali@cisco.com Lopez de Vergara, et al. Expires 16 March 2025 [Page 68] Internet-Draft Flexi-Grid YANG September 2024 Daniel Michaud Vallinoto Universidad Autonoma de Madrid Email: daniel.michaud@estudiante.uam.es Steven Hill MTN Group Technology Email: Steven.Hill@mtn.com Victor Lopez Nokia Email: victor.lopez@nokia.com Italo Busi Huawei Technologies Email: italo.busi@huawei.com Aihua Guo Futurewei Email: aihuaguo.ietf@gmail.com Authors' Addresses Jorge E. Lopez de Vergara Mendez Naudit HPCN Email: jorge.lopez_vergara@uam.es Daniel Perdices Burrero Universidad Autonoma de Madrid Email: daniel.perdices@uam.es Daniel King Old Dog Consulting Email: daniel@olddog.co.uk Young Lee Samsung Email: younglee.tx@gmail.com Lopez de Vergara, et al. Expires 16 March 2025 [Page 69] Internet-Draft Flexi-Grid YANG September 2024 Haomian Zheng Huawei Technologies Email: zhenghaomian@huawei.com Lopez de Vergara, et al. Expires 16 March 2025 [Page 70]