CCAMP Working Group H. Zheng Internet-Draft I. Busi Intended status: Standards Track Huawei Technologies Expires: 6 June 2025 S. Belotti V. Lopez Nokia Y. Xu CAICT 3 December 2024 A YANG Data Model for Optical Transport Network (OTN) Tunnels and Label Switched Paths draft-ietf-ccamp-otn-tunnel-model-22 Abstract This document describes the YANG data model for tunnels in OTN TE networks. The model can be used to do the configuration in order to establish the tunnel in OTN network. This work is independent with the control plane protocols. About This Document This note is to be removed before publishing as an RFC. Status information for this document may be found at https://datatracker.ietf.org/doc/draft-ietf-ccamp-otn-tunnel-model/. 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/haomianzheng/IETF-ACTN-YANG-Model. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Zheng, et al. Expires 6 June 2025 [Page 1] Internet-Draft OTN Tunnel Model December 2024 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 6 June 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 . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1. Terminology and Notations . . . . . . . . . . . . . . . . 3 1.2. Tree Diagram . . . . . . . . . . . . . . . . . . . . . . 3 1.3. Prefix in Data Node Names . . . . . . . . . . . . . . . . 3 2. OTN Tunnel Model Description . . . . . . . . . . . . . . . . 4 2.1. Overview of OTN Tunnel Model . . . . . . . . . . . . . . 4 2.2. Bandwidth Augmentation . . . . . . . . . . . . . . . . . 5 2.3. Label Augmentation . . . . . . . . . . . . . . . . . . . 5 3. OTN Tunnel YANG Tree . . . . . . . . . . . . . . . . . . . . 5 4. OTN Tunnel YANG Code . . . . . . . . . . . . . . . . . . . . 21 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 42 6. Security Considerations . . . . . . . . . . . . . . . . . . . 43 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 45 7.1. Normative References . . . . . . . . . . . . . . . . . . 45 7.2. Informative References . . . . . . . . . . . . . . . . . 47 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 48 Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 49 1. Introduction OTN transport networks, specified in [ITU-T_G.709], can carry various types of client signals. In many cases, the client signal is carried over an OTN tunnel across connected domains in a multi-domain network. Zheng, et al. Expires 6 June 2025 [Page 2] Internet-Draft OTN Tunnel Model December 2024 This document provides YANG model for creating OTN tunnel. The model augments the generic TE Tunnel model specified in [I-D.ietf-teas-yang-te]. The YANG module ietf-otn-tunnel defined in this document conforms to the Network Management Datastore Architecture (NMDA) defined in [RFC8342]. 1.1. Terminology and Notations Refer to [I-D.ietf-ccamp-otn-topo-yang] for the OTN specific terms terms used in this document. 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]. 1.2. Tree Diagram A simplified graphical representation of the data model is used in Section 3 of this this document. The meaning of the symbols in these diagrams is defined in [RFC8340]. 1.3. Prefix 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 the following table. Zheng, et al. Expires 6 June 2025 [Page 3] Internet-Draft OTN Tunnel Model December 2024 +==========+===================+============+ | Prefix | YANG module | Reference | +==========+===================+============+ | l1-types | ietf-layer1-types | [RFC YYYY] | +----------+-------------------+------------+ | otn-tnl | ietf-otn-tunnel | RFC XXXX | +----------+-------------------+------------+ | te | ietf-te | [RFC ZZZZ] | +----------+-------------------+------------+ Table 1: Prefixes and corresponding YANG modules RFC Editor Note: Please replace XXXX with the number assigned to the RFC once this draft becomes an RFC. Please replace YYYY with the RFC numbers assigned to [I-D.ietf-ccamp-layer1-types]. Please replace ZZZZ with the RFC numbers assigned to [I-D.ietf-teas-yang-te]. 2. OTN Tunnel Model Description 2.1. Overview of OTN Tunnel Model This document aims to describe the data model for OTN tunnel. The OTN tunnel model is using TE tunnel [I-D.ietf-teas-yang-te] as a basic model and augments it with OTN-specific parameters, including the bandwidth information and label information. Figure 1 shows the augmentation relationship. +----------------+ TE generic | ietf-te | +----------------+ ^ | | Augments | +--------+--------+ OTN | ietf-otn-tunnel | +-----------------+ Figure 1: Relationship between OTN and TE tunnel models It is also worth noting that the OTN tunnel provisioning is usually based on the OTN topology. Therefore the OTN tunnel model is usually used together with OTN topology model specified in [I-D.ietf-ccamp-otn-topo-yang]. The OTN tunnel model also imports a few type modules, including ietf-layer1-types, ietf-te-types and ietf-inet-types. The OTN-specific attributes in [RFC7139], including the Tributary Slot (TS) and Tributary Port Number (TPN), can be used Zheng, et al. Expires 6 June 2025 [Page 4] Internet-Draft OTN Tunnel Model December 2024 to represent the bandwidth and label information. These attributes have been specified in [I-D.ietf-ccamp-layer1-types] and used in this document for augmentation of the generic TE tunnel model. More scenarios and model applications can be found in [I-D.ietf-ccamp-transport-nbi-app-statement] and [I-D.ietf-teas-actn-yang]. 2.2. Bandwidth Augmentation The model augments all the occurrences of the te-bandwidth container with the OTN technology specific attributes using the otn-link- bandwidth and otn-path-bandwidth groupings defined in [I-D.ietf-ccamp-layer1-types]. 2.3. Label Augmentation The model augments all the occurrences of the label-restriction list with OTN technology specific attributes using the otn-label-range- info grouping defined in [I-D.ietf-ccamp-layer1-types]. Moreover, the model augments all the occurrences of the te-label container with the OTN technology specific attributes using the otn- label-start-end, otn-label-hop and otn-label-step groupings defined in [I-D.ietf-ccamp-layer1-types]. 3. OTN Tunnel YANG Tree module: ietf-otn-tunnel augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:te-bandwidth/te:technology: +--:(otn) +--rw otn-bandwidth +--rw odu-type? identityref +--rw (oduflex-type)? +--:(generic) | +--rw nominal-bit-rate union +--:(cbr) | +--rw client-type identityref +--:(gfp-n-k) | +--rw gfp-n uint8 | +--rw gfp-k? gfp-k +--:(flexe-client) | +--rw flexe-client flexe-client-rate +--:(flexe-aware) | +--rw flexe-aware-n uint16 +--:(packet) Zheng, et al. Expires 6 June 2025 [Page 5] Internet-Draft OTN Tunnel Model December 2024 +--rw opuflex-payload-rate union augment /te:te/te:tunnels/te:tunnel/te:te-bandwidth/te:technology: +--:(otn) +--rw otn-bandwidth +--rw odu-type? identityref +--rw (oduflex-type)? +--:(generic) | +--rw nominal-bit-rate union +--:(cbr) | +--rw client-type identityref +--:(gfp-n-k) | +--rw gfp-n uint8 | +--rw gfp-k? gfp-k +--:(flexe-client) | +--rw flexe-client flexe-client-rate +--:(flexe-aware) | +--rw flexe-aware-n uint16 +--:(packet) +--rw opuflex-payload-rate union augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:te-bandwidth/te:technology: +--:(otn) +--rw otn-bandwidth +--rw odu-type? identityref +--rw (oduflex-type)? +--:(generic) | +--rw nominal-bit-rate union +--:(cbr) | +--rw client-type identityref +--:(gfp-n-k) | +--rw gfp-n uint8 | +--rw gfp-k? gfp-k +--:(flexe-client) | +--rw flexe-client flexe-client-rate +--:(flexe-aware) | +--rw flexe-aware-n uint16 +--:(packet) +--rw opuflex-payload-rate union augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:computed-paths-properties /te:computed-path-properties/te:path-properties /te:te-bandwidth/te:technology: +--:(otn) +--ro otn-bandwidth +--ro odu-type? identityref +--ro (oduflex-type)? +--:(generic) | +--ro nominal-bit-rate union Zheng, et al. Expires 6 June 2025 [Page 6] Internet-Draft OTN Tunnel Model December 2024 +--:(cbr) | +--ro client-type identityref +--:(gfp-n-k) | +--ro gfp-n uint8 | +--ro gfp-k? gfp-k +--:(flexe-client) | +--ro flexe-client flexe-client-rate +--:(flexe-aware) | +--ro flexe-aware-n uint16 +--:(packet) +--ro opuflex-payload-rate union augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path/te:te-bandwidth /te:technology: +--:(otn) +--rw otn-bandwidth +--rw odu-type? identityref +--rw (oduflex-type)? +--:(generic) | +--rw nominal-bit-rate union +--:(cbr) | +--rw client-type identityref +--:(gfp-n-k) | +--rw gfp-n uint8 | +--rw gfp-k? gfp-k +--:(flexe-client) | +--rw flexe-client flexe-client-rate +--:(flexe-aware) | +--rw flexe-aware-n uint16 +--:(packet) +--rw opuflex-payload-rate union augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:computed-paths-properties/te:computed-path-properties /te:path-properties/te:te-bandwidth/te:technology: +--:(otn) +--ro otn-bandwidth +--ro odu-type? identityref +--ro (oduflex-type)? +--:(generic) | +--ro nominal-bit-rate union +--:(cbr) | +--ro client-type identityref +--:(gfp-n-k) | +--ro gfp-n uint8 | +--ro gfp-k? gfp-k +--:(flexe-client) | +--ro flexe-client flexe-client-rate Zheng, et al. Expires 6 June 2025 [Page 7] Internet-Draft OTN Tunnel Model December 2024 +--:(flexe-aware) | +--ro flexe-aware-n uint16 +--:(packet) +--ro opuflex-payload-rate union augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:te-bandwidth/te:technology: +--:(otn) +--rw otn-bandwidth +--rw odu-type? identityref +--rw (oduflex-type)? +--:(generic) | +--rw nominal-bit-rate union +--:(cbr) | +--rw client-type identityref +--:(gfp-n-k) | +--rw gfp-n uint8 | +--rw gfp-k? gfp-k +--:(flexe-client) | +--rw flexe-client flexe-client-rate +--:(flexe-aware) | +--rw flexe-aware-n uint16 +--:(packet) +--rw opuflex-payload-rate union augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:computed-paths-properties /te:computed-path-properties/te:path-properties /te:te-bandwidth/te:technology: +--:(otn) +--ro otn-bandwidth +--ro odu-type? identityref +--ro (oduflex-type)? +--:(generic) | +--ro nominal-bit-rate union +--:(cbr) | +--ro client-type identityref +--:(gfp-n-k) | +--ro gfp-n uint8 | +--ro gfp-k? gfp-k +--:(flexe-client) | +--ro flexe-client flexe-client-rate +--:(flexe-aware) | +--ro flexe-aware-n uint16 +--:(packet) +--ro opuflex-payload-rate union augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:te-bandwidth/te:technology: +--:(otn) +--rw otn-bandwidth Zheng, et al. Expires 6 June 2025 [Page 8] Internet-Draft OTN Tunnel Model December 2024 +--rw odu-type? identityref +--rw (oduflex-type)? +--:(generic) | +--rw nominal-bit-rate union +--:(cbr) | +--rw client-type identityref +--:(gfp-n-k) | +--rw gfp-n uint8 | +--rw gfp-k? gfp-k +--:(flexe-client) | +--rw flexe-client flexe-client-rate +--:(flexe-aware) | +--rw flexe-aware-n uint16 +--:(packet) +--rw opuflex-payload-rate union augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:computed-paths-properties /te:computed-path-properties/te:path-properties /te:te-bandwidth/te:technology: +--:(otn) +--ro otn-bandwidth +--ro odu-type? identityref +--ro (oduflex-type)? +--:(generic) | +--ro nominal-bit-rate union +--:(cbr) | +--ro client-type identityref +--:(gfp-n-k) | +--ro gfp-n uint8 | +--ro gfp-k? gfp-k +--:(flexe-client) | +--ro flexe-client flexe-client-rate +--:(flexe-aware) | +--ro flexe-aware-n uint16 +--:(packet) +--ro opuflex-payload-rate union augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:path-in-segment /te:label-restrictions/te:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:path-out-segment /te:label-restrictions/te:label-restriction: +--rw otn-label-range Zheng, et al. Expires 6 June 2025 [Page 9] Internet-Draft OTN Tunnel Model December 2024 +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:path-in-segment/te:label-restrictions /te:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:path-out-segment /te:label-restrictions/te:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:path-in-segment/te:label-restrictions /te:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:path-out-segment/te:label-restrictions /te:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:path-in-segment /te:label-restrictions/te:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:path-out-segment Zheng, et al. Expires 6 June 2025 [Page 10] Internet-Draft OTN Tunnel Model December 2024 /te:label-restrictions/te:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:path-in-segment /te:label-restrictions/te:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:path-out-segment /te:label-restrictions/te:label-restriction: +--rw otn-label-range +--rw range-type? otn-label-range-type +--rw tsg? identityref +--rw odu-type-list* identityref +--rw priority? uint8 augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:explicit-route-objects /te:route-object-exclude-always/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:explicit-route-objects /te:route-object-include-exclude/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:path-in-segment /te:label-restrictions/te:label-restriction /te:label-start/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts Zheng, et al. Expires 6 June 2025 [Page 11] Internet-Draft OTN Tunnel Model December 2024 augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:path-in-segment /te:label-restrictions/te:label-restriction/te:label-end /te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:path-in-segment /te:label-restrictions/te:label-restriction/te:label-step /te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:path-out-segment /te:label-restrictions/te:label-restriction /te:label-start/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:path-out-segment /te:label-restrictions/te:label-restriction/te:label-end /te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:globals/te:named-path-constraints /te:named-path-constraint/te:path-out-segment /te:label-restrictions/te:label-restriction/te:label-step /te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:optimizations/te:algorithm/te:metric /te:optimization-metric/te:explicit-route-exclude-objects /te:route-object-exclude-object/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn Zheng, et al. Expires 6 June 2025 [Page 12] Internet-Draft OTN Tunnel Model December 2024 +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:optimizations/te:algorithm/te:metric /te:optimization-metric/te:explicit-route-include-objects /te:route-object-include-object/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:explicit-route-objects /te:route-object-exclude-always/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:explicit-route-objects /te:route-object-include-exclude/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:path-in-segment/te:label-restrictions /te:label-restriction/te:label-start/te:te-label /te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:path-in-segment/te:label-restrictions /te:label-restriction/te:label-end/te:te-label /te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:path-in-segment/te:label-restrictions Zheng, et al. Expires 6 June 2025 [Page 13] Internet-Draft OTN Tunnel Model December 2024 /te:label-restriction/te:label-step/te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:path-out-segment /te:label-restrictions/te:label-restriction /te:label-start/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:path-out-segment /te:label-restrictions/te:label-restriction/te:label-end /te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:path-out-segment /te:label-restrictions/te:label-restriction/te:label-step /te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:computed-paths-properties /te:computed-path-properties/te:path-properties /te:path-route-objects/te:path-route-object/te:type /te:label/te:label-hop/te:te-label/te:technology: +--:(otn) +--ro otn-label +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path/te:optimizations /te:algorithm/te:metric/te:optimization-metric /te:explicit-route-exclude-objects /te:route-object-exclude-object/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn Zheng, et al. Expires 6 June 2025 [Page 14] Internet-Draft OTN Tunnel Model December 2024 +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path/te:optimizations /te:algorithm/te:metric/te:optimization-metric /te:explicit-route-include-objects /te:route-object-include-object/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:explicit-route-objects/te:route-object-exclude-always /te:type/te:label/te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:explicit-route-objects /te:route-object-include-exclude/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:path-in-segment/te:label-restrictions /te:label-restriction/te:label-start/te:te-label /te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:path-in-segment/te:label-restrictions /te:label-restriction/te:label-end/te:te-label /te:technology: +--:(otn) +--rw otn-label Zheng, et al. Expires 6 June 2025 [Page 15] Internet-Draft OTN Tunnel Model December 2024 +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:path-in-segment/te:label-restrictions /te:label-restriction/te:label-step/te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:path-out-segment/te:label-restrictions /te:label-restriction/te:label-start/te:te-label /te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:path-out-segment/te:label-restrictions /te:label-restriction/te:label-end/te:te-label /te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:path-out-segment/te:label-restrictions /te:label-restriction/te:label-step/te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:primary-paths /te:primary-path/te:primary-reverse-path /te:computed-paths-properties/te:computed-path-properties /te:path-properties/te:path-route-objects /te:path-route-object/te:type/te:label/te:label-hop /te:te-label/te:technology: +--:(otn) +--ro otn-label +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-paths Zheng, et al. Expires 6 June 2025 [Page 16] Internet-Draft OTN Tunnel Model December 2024 /te:secondary-path/te:optimizations/te:algorithm /te:metric/te:optimization-metric /te:explicit-route-exclude-objects /te:route-object-exclude-object/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:optimizations/te:algorithm /te:metric/te:optimization-metric /te:explicit-route-include-objects /te:route-object-include-object/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:explicit-route-objects /te:route-object-exclude-always/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:explicit-route-objects /te:route-object-include-exclude/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:path-in-segment /te:label-restrictions/te:label-restriction /te:label-start/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-paths Zheng, et al. Expires 6 June 2025 [Page 17] Internet-Draft OTN Tunnel Model December 2024 /te:secondary-path/te:path-in-segment /te:label-restrictions/te:label-restriction/te:label-end /te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:path-in-segment /te:label-restrictions/te:label-restriction/te:label-step /te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:path-out-segment /te:label-restrictions/te:label-restriction /te:label-start/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:path-out-segment /te:label-restrictions/te:label-restriction/te:label-end /te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:path-out-segment /te:label-restrictions/te:label-restriction/te:label-step /te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-paths /te:secondary-path/te:computed-paths-properties /te:computed-path-properties/te:path-properties /te:path-route-objects/te:path-route-object/te:type /te:label/te:label-hop/te:te-label/te:technology: +--:(otn) +--ro otn-label +--ro tpn? otn-tpn +--ro tsg? identityref Zheng, et al. Expires 6 June 2025 [Page 18] Internet-Draft OTN Tunnel Model December 2024 +--ro ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:optimizations/te:algorithm /te:metric/te:optimization-metric /te:explicit-route-exclude-objects /te:route-object-exclude-object/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:optimizations/te:algorithm /te:metric/te:optimization-metric /te:explicit-route-include-objects /te:route-object-include-object/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:explicit-route-objects /te:route-object-exclude-always/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:explicit-route-objects /te:route-object-include-exclude/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw tsg? identityref +--rw ts-list? string augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:path-in-segment /te:label-restrictions/te:label-restriction /te:label-start/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn Zheng, et al. Expires 6 June 2025 [Page 19] Internet-Draft OTN Tunnel Model December 2024 +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:path-in-segment /te:label-restrictions/te:label-restriction/te:label-end /te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:path-in-segment /te:label-restrictions/te:label-restriction/te:label-step /te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:path-out-segment /te:label-restrictions/te:label-restriction /te:label-start/te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:path-out-segment /te:label-restrictions/te:label-restriction/te:label-end /te:te-label/te:technology: +--:(otn) +--rw otn-label +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:path-out-segment /te:label-restrictions/te:label-restriction/te:label-step /te:technology: +--:(otn) +--rw otn-label-step +--rw tpn? otn-tpn +--rw ts? otn-ts augment /te:te/te:tunnels/te:tunnel/te:secondary-reverse-paths /te:secondary-reverse-path/te:computed-paths-properties /te:computed-path-properties/te:path-properties /te:path-route-objects/te:path-route-object/te:type /te:label/te:label-hop/te:te-label/te:technology: +--:(otn) +--ro otn-label Zheng, et al. Expires 6 June 2025 [Page 20] Internet-Draft OTN Tunnel Model December 2024 +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string augment /te:te/te:lsps/te:lsp/te:lsp-actual-route-information /te:lsp-actual-route-information/te:type/te:label /te:label-hop/te:te-label/te:technology: +--:(otn) +--ro otn-label +--ro tpn? otn-tpn +--ro tsg? identityref +--ro ts-list? string Figure 2 4. OTN Tunnel YANG Code file "ietf-otn-tunnel@2024-03-21.yang" module ietf-otn-tunnel { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-otn-tunnel"; prefix "otn-tnl"; import ietf-te { prefix "te"; reference "RFC ZZZZ: A YANG Data Model for Traffic Engineering Tunnels and Interfaces."; } /* Note: The RFC Editor will replace ZZZZ with the number assigned to the RFC once draft-ietf-teas-yang-te becomes an RFC.*/ import ietf-layer1-types { prefix "l1-types"; reference "RFC YYYY: Common YANG Data Types for Layer 1 Networks."; } /* Note: The RFC Editor will replace YYYY with the number assigned to the RFC once draft-ietf-ccamp-layer1-types becomes an RFC.*/ organization "IETF CCAMP Working Group"; contact "WG Web: WG List: Editor: Haomian Zheng Zheng, et al. Expires 6 June 2025 [Page 21] Internet-Draft OTN Tunnel Model December 2024 Editor: Italo Busi Editor: Sergio Belotti Editor: Victor Lopez Editor: Yunbin Xu "; description "This module defines a model for OTN Tunnel Services. The model fully conforms to the Network Management Datastore Architecture (NMDA). Copyright (c) 2024 IETF Trust and the persons identified as authors of the code. All rights reserved. Redistribution and use in source and binary forms, with or without modification, is permitted pursuant to, and subject to the license terms contained in, the Revised BSD License set forth in Section 4.c of the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/license-info). This version of this YANG module is part of RFC XXXX; see the RFC itself for full legal notices."; revision "2024-03-21" { description "Initial version"; reference "RFC XXXX: A YANG Data Model for Optical Transport Network (OTN) Tunnels and Label Switched Paths"; // RFC Ed.: replace XXXX with actual RFC number, update date // information and remove this note } /* * Data nodes */ /* * Augment TE bandwidth */ Zheng, et al. Expires 6 June 2025 [Page 22] Internet-Draft OTN Tunnel Model December 2024 augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of the named path constraint."; case otn { uses l1-types:otn-path-bandwidth; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of the tunnel."; case otn { uses l1-types:otn-path-bandwidth; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of the primary path."; case otn { uses l1-types:otn-path-bandwidth; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:computed-paths-properties/" + "te:computed-path-properties/te:path-properties/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of primary path's computed path properties."; case otn { uses l1-types:otn-path-bandwidth; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of the primary reverse path."; Zheng, et al. Expires 6 June 2025 [Page 23] Internet-Draft OTN Tunnel Model December 2024 case otn { uses l1-types:otn-path-bandwidth; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:computed-paths-properties/" + "te:computed-path-properties/te:path-properties/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of the primary reverse path's computed path properties."; case otn { uses l1-types:otn-path-bandwidth; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of the secondary path."; case otn { uses l1-types:otn-path-bandwidth; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:computed-paths-properties/" + "te:computed-path-properties/te:path-properties/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of the secondary path's computed path properties."; case otn { uses l1-types:otn-path-bandwidth; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/" + "te:secondary-reverse-path/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of the secondary reverse path."; Zheng, et al. Expires 6 June 2025 [Page 24] Internet-Draft OTN Tunnel Model December 2024 case otn { uses l1-types:otn-path-bandwidth; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/" + "te:secondary-reverse-path/" + "te:computed-paths-properties/" + "te:computed-path-properties/te:path-properties/" + "te:te-bandwidth/te:technology" { description "Augment TE bandwidth of the secondary reverse path's computed path properties."; case otn { uses l1-types:otn-path-bandwidth; } } /* * Augment TE label range information */ augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/te:path-in-segment/" + "te:label-restrictions/te:label-restriction" { description "Augment TE label range information for the ingress segment of the named path constraint."; uses l1-types:otn-label-range-info; } augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/te:path-out-segment/" + "te:label-restrictions/" + "te:label-restriction" { description "Augment TE label range information for the egress segment of the named path constraint."; uses l1-types:otn-label-range-info; } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction" { description "Augment TE label range information for the ingress segment Zheng, et al. Expires 6 June 2025 [Page 25] Internet-Draft OTN Tunnel Model December 2024 of the primay path."; uses l1-types:otn-label-range-info; } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction" { description "Augment TE label range information for the egress segment of the primay path."; uses l1-types:otn-label-range-info; } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction" { description "Augment TE label range information for the ingress segment of the primay reverse path."; uses l1-types:otn-label-range-info; } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction" { description "Augment TE label range information for the egress segment of the primay reverse path."; uses l1-types:otn-label-range-info; } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction" { description "Augment TE label range information for the ingress segment of the secondary path."; uses l1-types:otn-label-range-info; } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" Zheng, et al. Expires 6 June 2025 [Page 26] Internet-Draft OTN Tunnel Model December 2024 + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction" { description "Augment TE label range information for the egress segment of the secondary path."; uses l1-types:otn-label-range-info; } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction" { description "Augment TE label range information for the ingress segment of the secondary reverse path."; uses l1-types:otn-label-range-info; } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction" { description "Augment TE label range information for the egress segment of the secondary reverse path."; uses l1-types:otn-label-range-info; } /* * Augment TE label. */ augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/" + "te:explicit-route-objects/" + "te:route-object-exclude-always/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the explicit route objects always excluded by the path computation with the named path constraint."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/" Zheng, et al. Expires 6 June 2025 [Page 27] Internet-Draft OTN Tunnel Model December 2024 + "te:explicit-route-objects/" + "te:route-object-include-exclude/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the explicit route objects included or excluded by the path computation with the named path constraint."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/te:path-in-segment/" + "te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the ingress segment of the named path constraint."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/te:path-in-segment/" + "te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the ingress segment of the named path constraint."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/te:path-in-segment/" + "te:label-restrictions/te:label-restriction/" + "te:label-step/te:technology" { description "Augment TE label range step for the ingress segment of the named path constraint."; case otn { uses l1-types:otn-label-step; } Zheng, et al. Expires 6 June 2025 [Page 28] Internet-Draft OTN Tunnel Model December 2024 } augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/te:path-out-segment/" + "te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the egress segment of the named path constraint."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/te:path-out-segment/" + "te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the egress segment of the named path constraint."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:globals/te:named-path-constraints/" + "te:named-path-constraint/te:path-out-segment/" + "te:label-restrictions/te:label-restriction/" + "te:label-step/te:technology" { description "Augment TE label range step for the egress segment of the named path constraint."; case otn { uses l1-types:otn-label-step; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:optimizations/te:algorithm/te:metric/" + "te:optimization-metric/te:explicit-route-exclude-objects/" + "te:route-object-exclude-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the optimization of the explicit Zheng, et al. Expires 6 June 2025 [Page 29] Internet-Draft OTN Tunnel Model December 2024 route objects excluded by the path computation of the primary path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:optimizations/te:algorithm/te:metric/" + "te:optimization-metric/te:explicit-route-include-objects/" + "te:route-object-include-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the optimization of the explicit route objects included by the path computation of the primary path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:explicit-route-objects/" + "te:route-object-exclude-always/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the explicit route objects always excluded by the path computation of the primary path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:explicit-route-objects/" + "te:route-object-include-exclude/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the explicit route objects included or excluded by the path computation of the primary path."; case otn { uses l1-types:otn-label-hop; } } Zheng, et al. Expires 6 June 2025 [Page 30] Internet-Draft OTN Tunnel Model December 2024 augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the ingress segment of the primay path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the ingress segment of the primay path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-step/te:technology" { description "Augment TE label range step for the ingress segment of the primay path."; case otn { uses l1-types:otn-label-step; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the egress segment of the primay path."; case otn { uses l1-types:otn-label-start-end; Zheng, et al. Expires 6 June 2025 [Page 31] Internet-Draft OTN Tunnel Model December 2024 } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the egress segment of the primay path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-step/te:technology" { description "Augment TE label range end for the egress segment of the primay path."; case otn { uses l1-types:otn-label-step; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:computed-paths-properties/" + "te:computed-path-properties/te:path-properties/" + "te:path-route-objects/te:path-route-object/" + "te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the route object of the computed primary path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:optimizations/te:algorithm/te:metric/" + "te:optimization-metric/te:explicit-route-exclude-objects/" Zheng, et al. Expires 6 June 2025 [Page 32] Internet-Draft OTN Tunnel Model December 2024 + "te:route-object-exclude-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the optimization of the explicit route objects excluded by the path computation of the primary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:optimizations/te:algorithm/te:metric/" + "te:optimization-metric/te:explicit-route-include-objects/" + "te:route-object-include-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the optimization of the explicit route objects included by the path computation of the primary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:explicit-route-objects/" + "te:route-object-exclude-always/" + "te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the explicit route objects always excluded by the path computation of the primary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:explicit-route-objects/" + "te:route-object-include-exclude/" Zheng, et al. Expires 6 June 2025 [Page 33] Internet-Draft OTN Tunnel Model December 2024 + "te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the explicit route objects included or excluded by the path computation of the primary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the ingress segment of the primay reverse path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the ingress segment of the primay reverse path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-step/te:technology" { description "Augment TE label range step for the ingress segment of the primay reverse path."; case otn { Zheng, et al. Expires 6 June 2025 [Page 34] Internet-Draft OTN Tunnel Model December 2024 uses l1-types:otn-label-step; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the egress segment of the primay reverse path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the egress segment of the primay reverse path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-step/te:technology" { description "Augment TE label range step for the egress segment of the primay reverse path."; case otn { uses l1-types:otn-label-step; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:primary-paths/te:primary-path/" + "te:primary-reverse-path/" Zheng, et al. Expires 6 June 2025 [Page 35] Internet-Draft OTN Tunnel Model December 2024 + "te:computed-paths-properties/te:computed-path-properties/" + "te:path-properties/te:path-route-objects/" + "te:path-route-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the route object of the computed primary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:optimizations/te:algorithm/te:metric/" + "te:optimization-metric/te:explicit-route-exclude-objects/" + "te:route-object-exclude-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the optimization of the explicit route objects excluded by the path computation of the secondary path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:optimizations/te:algorithm/te:metric/" + "te:optimization-metric/te:explicit-route-include-objects/" + "te:route-object-include-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the optimization of the explicit route objects included by the path computation of the secondary path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:explicit-route-objects/" + "te:route-object-exclude-always/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description Zheng, et al. Expires 6 June 2025 [Page 36] Internet-Draft OTN Tunnel Model December 2024 "Augment TE label hop for the explicit route objects always excluded by the path computation of the secondary path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:explicit-route-objects/" + "te:route-object-include-exclude/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the explicit route objects included or excluded by the path computation of the secondary path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the ingress segment of the secondary path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the ingress segment of the secondary path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:path-in-segment/te:label-restrictions/" Zheng, et al. Expires 6 June 2025 [Page 37] Internet-Draft OTN Tunnel Model December 2024 + "te:label-restriction/te:label-step/te:technology" { description "Augment TE label range step for the ingress segment of the secondary path."; case otn { uses l1-types:otn-label-step; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the egress segment of the secondary path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the egress segment of the secondary path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-paths/te:secondary-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-step/te:technology" { description "Augment TE label range step for the egress segment of the secondary path."; case otn { uses l1-types:otn-label-step; } } augment "/te:te/te:tunnels/te:tunnel/" Zheng, et al. Expires 6 June 2025 [Page 38] Internet-Draft OTN Tunnel Model December 2024 + "te:secondary-paths/te:secondary-path/" + "te:computed-paths-properties/" + "te:computed-path-properties/" + "te:path-properties/te:path-route-objects/" + "te:path-route-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the route object of the computed secondary path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:optimizations/te:algorithm/te:metric/" + "te:optimization-metric/te:explicit-route-exclude-objects/" + "te:route-object-exclude-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the optimization of the explicit route objects excluded by the path computation of the secondary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:optimizations/te:algorithm/te:metric/" + "te:optimization-metric/te:explicit-route-include-objects/" + "te:route-object-include-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the optimization of the explicit route objects included by the path computation of the secondary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:explicit-route-objects/" + "te:route-object-exclude-always/te:type/te:label/" Zheng, et al. Expires 6 June 2025 [Page 39] Internet-Draft OTN Tunnel Model December 2024 + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the explicit route objects always excluded by the path computation of the secondary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:explicit-route-objects/" + "te:route-object-include-exclude/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the explicit route objects included or excluded by the path computation of the secondary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the ingress segment of the secondary reverse path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the ingress segment of the secondary reverse path."; case otn { uses l1-types:otn-label-start-end; } Zheng, et al. Expires 6 June 2025 [Page 40] Internet-Draft OTN Tunnel Model December 2024 } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:path-in-segment/te:label-restrictions/" + "te:label-restriction/te:label-step/te:technology" { description "Augment TE label range step for the ingress segment of the secondary reverse path."; case otn { uses l1-types:otn-label-step; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-start/" + "te:te-label/te:technology" { description "Augment TE label range start for the egress segment of the secondary reverse path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-end/" + "te:te-label/te:technology" { description "Augment TE label range end for the egress segment of the secondary reverse path."; case otn { uses l1-types:otn-label-start-end; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:path-out-segment/te:label-restrictions/" + "te:label-restriction/te:label-step/te:technology" { description "Augment TE label range step for the egress segment of the secondary reverse path."; case otn { Zheng, et al. Expires 6 June 2025 [Page 41] Internet-Draft OTN Tunnel Model December 2024 uses l1-types:otn-label-step; } } augment "/te:te/te:tunnels/te:tunnel/" + "te:secondary-reverse-paths/te:secondary-reverse-path/" + "te:computed-paths-properties/" + "te:computed-path-properties/" + "te:path-properties/te:path-route-objects/" + "te:path-route-object/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the route object of the computed secondary reverse path."; case otn { uses l1-types:otn-label-hop; } } augment "/te:te/te:lsps/" + "te:lsp/te:lsp-actual-route-information/" + "te:lsp-actual-route-information/te:type/te:label/" + "te:label-hop/te:te-label/te:technology" { description "Augment TE label hop for the record route of the LSP."; case otn { uses l1-types:otn-label-hop; } } } Figure 3 5. IANA Considerations IANA is requested to register the following URI in the "ns" subregistry within the "IETF XML Registry" [RFC3688]: URI: urn:ietf:params:xml:ns:yang:ietf-otn-tunnel Registrant Contact: The IESG XML: N/A; the requested URI is an XML namespace. IANA is requested to register the following YANG module in the "YANG Module Names" subregistry [RFC6020] within the "YANG Parameters" registry. Zheng, et al. Expires 6 June 2025 [Page 42] Internet-Draft OTN Tunnel Model December 2024 name: ietf-otn-tunnel namespace: urn:ietf:params:xml:ns:yang:ietf-otn-tunnel prefix: otn-tnl reference: RFC XXXX RFC Editor Note: Please replace XXXX with the number assigned to the RFC once this draft becomes an RFC. 6. Security Considerations This section is modeled after the template described in Section 3.7 of [I-D.ietf-netmod-rfc8407bis]. The "ietf-te-types" and the "ietf-te-packet-types" YANG modules define data models that are designed to be accessed via YANG-based management protocols, such as NETCONF [RFC6241] and RESTCONF [RFC8040]. These protocols have to use a secure transport layer (e.g., SSH [RFC4252], TLS [RFC8446], and QUIC [RFC9000]) and have to use mutual authentication. 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. 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 can 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. Specifically, the following subtrees and data nodes have particular sensitivities/vulnerabilities: * "otnt:otn-bandwidth" This subtree specifies the configurations of OTN technology- specific information under any occurrence of the tet:te-bandwidth container, as defined in [I-D.ietf-teas-yang-te] (e.g., "/te:te/te:tunnels/te:tunnel/te:te- bandwidth/te:technology/otnt:otn/otnt:otn-bandwidth"). By configuring the OTN bandwidth attributes, an attacker may create an unauthorized OTN traffic path. By removing or modifying it, a malicious attacker may cause OTN traffic to be disabled or misrouted. * "otnt:otn-label-range" Zheng, et al. Expires 6 June 2025 [Page 43] Internet-Draft OTN Tunnel Model December 2024 This subtree specifies the configurations of OTN technology- specific label range information under any occurrence of the tet:label-restriction container, as defined in [I-D.ietf-teas-yang-te] (e.g., "/te:te/te:tunnels/te:tunnel/ te:primary-paths/te:primary-path/te:path-in-segment/te:label- restrictions/te:label-restriction/otnt:otn-label-range"). By configuring the OTN label range attributes, an attacker may create an unauthorized OTN traffic path. By removing or modifying, a malicious attacker may cause OTN traffic to be disabled or misrouted. * "otnt:otn-label" This subtree specifies the configurations of OTN technology- specific label information under any occurrence of the tet:te- label container, as defined in [I-D.ietf-teas-yang-te] (e.g., "/te:te/te:tunnels/te:tunnel/te:primary-paths/te:primary-path/ te:explicit-route-objects/te:route-object-include- exclude/te:type/te:label/te:label-hop/te:te- label/te:technology/otnt:otn/otnt:otn-label"). By configuring, removing or modifying the OTN label attributes, a malicious attacker may cause OTN traffic to be disabled or misrouted. Some of the readable data nodes in this YANG module may be considered sensitive or vulnerable in some network environments. It is thus important to control read access (e.g., via get, get-config, or notification) to these data nodes. Specifically, the following subtrees and data nodes have particular sensitivities/ vulnerabilities: * "otnt:otn-bandwidth" This subtree specifies the configurations of OTN technology- specific information under any occurrence of the tet:te-bandwidth container, as defined in [I-D.ietf-teas-yang-te] (e.g., "/te:te/te:tunnels/te:tunnel/te:te- bandwidth/te:technology/otnt:otn/otnt:otn-bandwidth"). Unauthorized access to this data node can disclose the OTN bandwidth information of OTN tunnels and LSPs. * "otnt:otn-label-range" Zheng, et al. Expires 6 June 2025 [Page 44] Internet-Draft OTN Tunnel Model December 2024 This subtree specifies the configurations of OTN technology- specific label range information under any occurrence of the tet:label-restriction container, as defined in [I-D.ietf-teas-yang-te] (e.g., "/te:te/te:tunnels/te:tunnel/ te:primary-paths/te:primary-path/te:path-in-segment/te:label- restrictions/te:label-restriction/otnt:otn-label-range"). Unauthorized access to this data node can disclose the state information of OTN tunnels and LSPs. * "otnt:otn-label" This subtree specifies the configurations of OTN technology- specific label information under any occurrence of the tet:te- label container, as defined in [I-D.ietf-teas-yang-te] (e.g., "/te:te/te:tunnels/te:tunnel/te:primary-paths/te:primary-path/ te:explicit-route-objects/te:route-object-include- exclude/te:type/te:label/te:label-hop/te:te- label/te:technology/otnt:otn/otnt:otn-label"). Unauthorized access to this data node can disclose the state information of OTN tunnels and LSPs. This YANG module does not define RPC operations. This YANG module uses groupings from other YANG modules that define nodes that may be considered sensitive or vulnerable in network environments. Refer to the Security Considerations of [I-D.ietf-ccamp-layer1-types] for information as to which nodes may be considered sensitive or vulnerable in network environments. Finally, the YANG module described in this document augments the "ietf-te" YANG module [I-D.ietf-teas-yang-te] by adding data nodes. The security considerations for the subtrees described in those RFCs apply equally to the new data nodes that this module adds. 7. References 7.1. Normative References [I-D.ietf-ccamp-layer1-types] Zheng, H. and I. Busi, "Common YANG Data Types for Layer 1 Networks", Work in Progress, Internet-Draft, draft-ietf- ccamp-layer1-types-18, 23 February 2024, . [I-D.ietf-ccamp-otn-topo-yang] Zheng, H., Busi, I., Liu, X., Belotti, S., and O. G. de Dios, "A YANG Data Model for Optical Transport Network Zheng, et al. Expires 6 June 2025 [Page 45] Internet-Draft OTN Tunnel Model December 2024 Topology", Work in Progress, Internet-Draft, draft-ietf- ccamp-otn-topo-yang-20, 7 November 2024, . [I-D.ietf-teas-yang-te] Saad, T., Gandhi, R., Liu, X., Beeram, V. P., and I. Bryskin, "A YANG Data Model for Traffic Engineering Tunnels, Label Switched Paths and Interfaces", Work in Progress, Internet-Draft, draft-ietf-teas-yang-te-37, 9 October 2024, . [ITU-T_G.709] ITU-T Recommendation G.709, "Interfaces for the optical transport network", ITU-T G.709 , March 2020. [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, . [RFC7139] Zhang, F., Ed., Zhang, G., Belotti, S., Ceccarelli, D., and K. Pithewan, "GMPLS Signaling Extensions for Control of Evolving G.709 Optical Transport Networks", RFC 7139, DOI 10.17487/RFC7139, March 2014, . [RFC7950] Bjorklund, M., Ed., "The YANG 1.1 Data Modeling Language", RFC 7950, DOI 10.17487/RFC7950, August 2016, . [RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration Access Control Model", STD 91, RFC 8341, DOI 10.17487/RFC8341, March 2018, . Zheng, et al. Expires 6 June 2025 [Page 46] Internet-Draft OTN Tunnel Model December 2024 [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, . 7.2. Informative References [I-D.ietf-ccamp-transport-nbi-app-statement] Busi, I., King, D., Zheng, H., and Y. Xu, "Transport Northbound Interface Applicability Statement", Work in Progress, Internet-Draft, draft-ietf-ccamp-transport-nbi- app-statement-17, 10 July 2023, . [I-D.ietf-netmod-rfc8407bis] Bierman, A., Boucadair, M., and Q. Wu, "Guidelines for Authors and Reviewers of Documents Containing YANG Data Models", Work in Progress, Internet-Draft, draft-ietf- netmod-rfc8407bis-21, 13 November 2024, . [I-D.ietf-teas-actn-yang] Lee, Y., Zheng, H., Ceccarelli, D., Yoon, B. Y., and S. Belotti, "Applicability of YANG models for Abstraction and Control of Traffic Engineered Networks", Work in Progress, Internet-Draft, draft-ietf-teas-actn-yang-11, 7 March 2023, . [RFC4252] Ylonen, T. and C. Lonvick, Ed., "The Secure Shell (SSH) Authentication Protocol", RFC 4252, DOI 10.17487/RFC4252, January 2006, . [RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017, . [RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams", BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018, . [RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018, . Zheng, et al. Expires 6 June 2025 [Page 47] Internet-Draft OTN Tunnel Model December 2024 [RFC9000] Iyengar, J., Ed. and M. Thomson, Ed., "QUIC: A UDP-Based Multiplexed and Secure Transport", RFC 9000, DOI 10.17487/RFC9000, May 2021, . Acknowledgments We would like to thank Yu Chaode for his comments and discussions. Contributors Aihua Guo Futurewei Email: aihuaguo.ietf@gmail.com Anurag Sharma Google Email: ansha@google.com Rajan Rao Infinera Email: rrao@infinera.com Yunbo Li China Mobile Email: liyunbo@chinamobile.com Dieter Beller Nokia Email: dieter.beller@nokia.com Yanlei Zheng China Unicom Email: zhengyanlei@chinaunicom.cn Xian Zhang Huawei Technologies Email: Huawei Technologies Lei Wang China Mobile Zheng, et al. Expires 6 June 2025 [Page 48] Internet-Draft OTN Tunnel Model December 2024 Email: wangleiyj@chinamobile.com Oscar Gonzalez de Dios Telefonica Email: oscar.gonzalezdedios@telefonica.com Authors' Addresses Haomian Zheng Huawei Technologies H1, Huawei Xiliu Beipo Village, Songshan Lake Dongguan Guangdong, 523808 China Email: zhenghaomian@huawei.com Italo Busi Huawei Technologies Email: italo.busi@huawei.com Sergio Belotti Nokia Email: sergio.belotti@nokia.com Victor Lopez Nokia Email: victor.lopez@nokia.com Yunbin Xu CAICT Email: xuyunbin@caict.ac.cn Zheng, et al. Expires 6 June 2025 [Page 49]