CCAMP Working Group S. Mansfield, Ed. Internet-Draft Ericsson Inc Intended status: Standards Track J. Ahlberg Expires: 31 August 2024 Ericsson AB M. Ye Huawei Technologies X. Li NEC Laboratories Europe D. Spreafico Nokia - IT 28 February 2024 A YANG Data Model for Microwave Topology draft-ietf-ccamp-mw-topo-yang-12 Abstract This document defines a YANG data model to describe microwave/ millimeter radio links in a network topology. 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://github.com/ ietf-ccamp-wg/draft-ietf-ccamp-mw-topo-yang. Status information for this document may be found at https://datatracker.ietf.org/doc/draft- ietf-ccamp-mw-topo-yang/. Discussion of this document takes place on the CCAMP Working Group mailing list (mailto:ccamp@ietf.org), which is archived at https://datatracker.ietf.org/wg/ccamp/about/. Subscribe at https://www.ietf.org/mailman/listinfo/ccamp/. Source for this draft and an issue tracker can be found at https://github.com/https://github.com/ietf-ccamp-wg/draft-ietf-ccamp- mw-topo-yang. 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/. Mansfield, et al. Expires 31 August 2024 [Page 1] Internet-Draft Microwave Topology YANG Model February 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 31 August 2024. 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 1.1. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 4 1.2. Tree Structure . . . . . . . . . . . . . . . . . . . . . 4 1.3. Prefixes in Data Node Names . . . . . . . . . . . . . . . 4 2. Microwave Topology YANG Data Model . . . . . . . . . . . . . 4 2.1. YANG Tree . . . . . . . . . . . . . . . . . . . . . . . . 4 2.2. Relationship between radio links and carriers . . . . . . 5 2.3. Relationship with client topology model . . . . . . . . . 6 2.4. Applicability of the Data Model for Traffic Engineering (TE) Topologies . . . . . . . . . . . . . . . . . . . . . 6 2.5. Microwave Topology YANG Module . . . . . . . . . . . . . 6 3. Security Considerations . . . . . . . . . . . . . . . . . . . 13 4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14 5. References . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.1. Normative References . . . . . . . . . . . . . . . . . . 14 5.2. Informative References . . . . . . . . . . . . . . . . . 15 Appendix A. Microwave Topology Model with base topology models . . . . . . . . . . . . . . . . . . . . . . . . . 16 A.1. Instance data for 2+0 mode for a bonded configuration . . 19 A.2. Instance data for 1+1 mode for a protected configuration . . . . . . . . . . . . . . . . . . . . . . 25 Appendix B. Microwave Topology Model with example extensions . . 31 B.1. Instance data for 2+0 mode . . . . . . . . . . . . . . . 35 B.2. Instance data for geolocation information . . . . . . . . 44 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 44 Mansfield, et al. Expires 31 August 2024 [Page 2] Internet-Draft Microwave Topology YANG Model February 2024 Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 44 1. Introduction This document defines a YANG data model to describe topologies of microwave/millimeter wave (hereafter microwave is used to simplify the text). The YANG data model describes radio links, supporting carrier(s) and the associated termination points [RFC8561]. A carrier is a description of a link providing transport capacity over the air by a single carrier. It is typically defined by its transmitting and receiving frequencies. A radio link is a link providing the aggregated transport capacity of the supporting carriers in aggregated and/or protected configurations, which can be used to carry traffic on higher topology layers such as Ethernet and TDM. The model augments "YANG Data Model for Traffic Engineering (TE) Topologies" defined in [RFC8795], which is based on "A YANG Data Model for Network Topologies" defined in [RFC8345]. The microwave point-to-point radio technology provides connectivity on Layer 0 / Layer 1 (L0/L1) over a radio link between two termination points, using one or several supporting carriers in aggregated or protected configurations. That application of microwave technology cannot be used to perform cross-connection or switching of the traffic to create network connectivity across multiple microwave radio links. Instead, a payload of traffic on higher topology layers, normally Layer 2 (L2) Ethernet, is carried over the microwave radio link and when the microwave radio link is terminated at the endpoints, cross-connection and switching can be performed on that higher layer creating connectivity across multiple supporting microwave radio links. The microwave topology model is expected to be used between a Provisioning Network Controller (PNC) and a Multi Domain Service Coordinator (MDSC) [RFC8453]. Examples of use cases that can be supported are: 1. Correlation between microwave radio links and the supported links on higher topology layers (e.g., an L2 Ethernet topology). This information can be used to understand how changes in the performance/status of a microwave radio link affect traffic on higher layers. 2. Propagation of relevant characteristics of a microwave radio link, such as bandwidth, to higher topology layers, where it could be used as a criterion when configuring and optimizing a path for a connection/service through the network end to end. Mansfield, et al. Expires 31 August 2024 [Page 3] Internet-Draft Microwave Topology YANG Model February 2024 3. Optimization of the microwave radio link configurations on a network level, with the purpose to minimize overall interference and/or maximize the overall capacity provided by the links. 1.1. Abbreviations The following abbreviations are used in this document: CTP Carrier Termination Point RLT Radio Link Terminal RLTP Radio Link Termination Point 1.2. Tree Structure A simplified graphical representation of the data model is used in chapter 3.1 of this document. The meaning of the symbols in these diagrams is defined in [RFC8340]. 1.3. 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. +==========+=========================+===============+ | Prefix | YANG Module | Reference | +==========+=========================+===============+ | mwt | ietf-microwave-topology | This document | +----------+-------------------------+---------------+ | nw | ietf-network | [RFC8345] | +----------+-------------------------+---------------+ | nt | ietf-network-topology | [RFC8345] | +----------+-------------------------+---------------+ | mw-types | ietf-microwave-types | [RFC8561] | +----------+-------------------------+---------------+ | tet | ietf-te-topology | [RFC8795] | +----------+-------------------------+---------------+ Table 1: Prefixes for imported YANG modules 2. Microwave Topology YANG Data Model 2.1. YANG Tree Mansfield, et al. Expires 31 August 2024 [Page 4] Internet-Draft Microwave Topology YANG Model February 2024 module: ietf-microwave-topology augment /nw:networks/nw:network/nw:network-types/tet:te-topology: +--rw mw-topology! augment /nw:networks/nw:network/nw:node/tet:te /tet:te-node-attributes: +--rw mw-node! augment /nw:networks/nw:network/nw:node/nt:termination-point /tet:te: +--rw mw-tp! +--rw (mw-tp-option)? +--:(microwave-rltp) | +--rw microwave-rltp! +--:(microwave-ctp) +--rw microwave-ctp! augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes: +--rw mw-link! +--rw (mw-link-option) +--:(microwave-radio-link) | +--rw microwave-radio-link! | +--rw rlt-mode | +--rw num-bonded-carriers uint32 | +--rw num-protecting-carriers uint32 +--:(microwave-carrier) +--rw microwave-carrier! +--rw tx-frequency? uint32 +--rw rx-frequency? uint32 +--rw channel-separation? uint32 +--ro actual-tx-cm? identityref +--ro actual-snir? decimal64 +--ro actual-transmitted-level? decimal64 augment /nw:networks/nw:network/nt:link/tet:te /tet:te-link-attributes/tet:max-link-bandwidth /tet:te-bandwidth: +--ro mw-bandwidth? uint64 Figure 1: Microwave Topology Tree 2.2. Relationship between radio links and carriers A microwave radio link is always an aggregate of one or multiple carriers, in various configurations/modes. The supporting carriers are identified by their termination points and are listed in the container bundled-links as part of the te-link-config in the YANG Data Model for Traffic Engineering (TE) Topologies [RFC8795] for a radio-link. The exact configuration of the included carriers is further specified in the rlt-mode container (1+0, 2+0, 1+1, etc.) for Mansfield, et al. Expires 31 August 2024 [Page 5] Internet-Draft Microwave Topology YANG Model February 2024 the radio-link. Appendix A includes JSON examples of how such a relationship can be modelled. 2.3. Relationship with client topology model A microwave radio link carries a payload of traffic on higher topology layers, normally L2 Ethernet. The leafs supporting-network, supporting-node, supporting-link, and supporting-termination-point in the generic YANG module for Network Topologies [RFC8345] are expected to be used to model a relationship/dependency from higher topology layers to a supporting microwave radio link topology layer. Appendix A includes JSON examples of an L2 Ethernet link transported over one supporting microwave link. 2.4. Applicability of the Data Model for Traffic Engineering (TE) Topologies Since microwave is a point-to-point radio technology, a majority of the leafs in the Data Model for Traffic Engineering (TE) Topologies augmented by the microwave topology model are not applicable. An example of which leafs are considered applicable can be found in appendices Appendix A and Appendix B in this document. More specifically in the context of the microwave-specific augmentations of te-topology, admin-status and oper-status leafs (from te-topology) are only applicable to microwave carriers (in the mw-link tree) and not microwave radio links. Enable and disable of a radio link is instead done in the constituent carriers. Furthermore the status leafs related to mw-tp can be used when links are inter- domain and when the status of only one side of the link is known, but since microwave is a point-to-point technology where both ends normally belong to the same domain it is not expected to be applicable in normal cases. 2.5. Microwave Topology YANG Module This module imports typedefs and modules from [RFC8345], [RFC8561], and [RFC8795], and it references [EN301129] and [EN302217-1]. file "ietf-microwave-topology@2024-02-27.yang" module ietf-microwave-topology { yang-version 1.1; namespace "urn:ietf:params:xml:ns:yang:ietf-microwave-topology"; prefix mwt; import ietf-network { prefix nw; reference Mansfield, et al. Expires 31 August 2024 [Page 6] Internet-Draft Microwave Topology YANG Model February 2024 "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-microwave-types { prefix mw-types; reference "RFC 8561"; } organization "Internet Engineering Task Force (IETF) CCAMP WG"; contact "WG Web: WG List: Editor: Jonas Ahlberg Editor: Scott Mansfield Editor: Min Ye Editor: Italo Busi Editor: Xi Li Editor: Daniela Spreafico "; description "This is a module for microwave topology. 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 Mansfield, et al. Expires 31 August 2024 [Page 7] Internet-Draft Microwave Topology YANG Model February 2024 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 2024-02-27 { description "Last call comment resolutions."; reference ""; } grouping rlt-mode { description "This grouping provides a flexible definition of number of bonded carriers and protecting carriers of a radio link."; leaf num-bonded-carriers { type uint32; mandatory true; description "Number of bonded carriers."; } leaf num-protecting-carriers { type uint32; mandatory true; description "Number of protecting carriers."; } } grouping microwave-radio-link-attributes { description "Grouping used for attributes describing a microwave radio link."; container rlt-mode { description "This grouping provides a flexible definition of number of bonded carriers and protecting carriers of a radio link."; uses rlt-mode; } } grouping microwave-carrier-attributes { description "Grouping used for attributes describing a microwave Mansfield, et al. Expires 31 August 2024 [Page 8] Internet-Draft Microwave Topology YANG Model February 2024 carrier."; leaf tx-frequency { type uint32; units "kHz"; description "Selected transmitter frequency. Related to the data node tx-frequency in RFC 8561."; reference "RFC 8561: A YANG Data Model for Microwave Radio Link"; } leaf rx-frequency { type uint32; units "kHz"; description "Selected receiver frequency. Related to the data node actual-rx-frequency in RFC 8561."; reference "RFC 8561: A YANG Data Model for Microwave Radio Link"; } leaf channel-separation { type uint32; units "kHz"; description "The amount of bandwidth allocated to a carrier. The distance between adjacent channels in a radio frequency channels arrangement. Related to the data node channel-separation in RFC 8561."; reference "ETSI EN 302 217-1 and RFC 8561: A YANG Data Model for Microwave Radio Link"; } leaf actual-tx-cm { type identityref { base mw-types:coding-modulation; } config false; description "Actual coding/modulation in transmitting direction. Related to the data node actual-tx-cm in RFC 8561."; reference "RFC 8561: A YANG Data Model for Microwave Radio Link"; } leaf actual-snir { type decimal64 { fraction-digits 1; } units "dB"; config false; Mansfield, et al. Expires 31 August 2024 [Page 9] Internet-Draft Microwave Topology YANG Model February 2024 description "Actual signal to noise plus the interference ratio (0.1 dB resolution). Related to the data node actual-snir in RFC 8561."; reference "RFC 8561: A YANG Data Model for Microwave Radio Link"; } leaf actual-transmitted-level { type decimal64 { fraction-digits 1; } units "dBm"; config false; description "Actual transmitted power level (0.1 dBm resolution). Related to the data node actual-transmitted-level in RFC 8561."; reference "ETSI EN 301 129 and RFC 8561: A YANG Data Model for Microwave Radio Link"; } } grouping microwave-bandwidth { description "Grouping used for microwave bandwidth."; leaf mw-bandwidth { type uint64; units "bits/seconds"; config false; description "Nominal microwave radio link and carrier bandwidth."; } } augment "/nw:networks/nw:network/nw:network-types/" + "tet:te-topology" { description "Augment network types to define a microwave network topology type."; container mw-topology { presence "Indicates a topology type of microwave."; description "Microwave topology type"; } } augment "/nw:networks/nw:network/nw:node/tet:te" Mansfield, et al. Expires 31 August 2024 [Page 10] Internet-Draft Microwave Topology YANG Model February 2024 + "/tet:te-node-attributes" { when '../../../nw:network-types' + '/tet:te-topology/mwt:mw-topology' { description "Augmentation parameters apply only for networks with a microwave network topology type."; } description "Augment network node to indicate a microwave node."; container mw-node { presence "Indicates a microwave node."; description "Microwave node"; } } augment "/nw:networks/nw:network/nw:node/nt:termination-point/" + "tet:te" { when '../../../nw:network-types/tet:te-topology/' + 'mwt:mw-topology' { description "Augmentation parameters apply only for networks with a microwave network topology type."; } description "Augmentation to add microwave technology specific characteristics to a termination point."; container mw-tp { presence "Denotes a microwave termination point."; description "Specification of type of termination point."; choice mw-tp-option { description "Selection of type of termination point."; case microwave-rltp { container microwave-rltp { presence "Denotes a microwave radio link termination point. It corresponds to a microwave RLT interface as defined in RFC 8561."; description "Denotes and describes a microwave radio link termination point."; } } case microwave-ctp { container microwave-ctp { presence "Denotes a microwave carrier termination point. Mansfield, et al. Expires 31 August 2024 [Page 11] Internet-Draft Microwave Topology YANG Model February 2024 It corresponds to a microwave CT interface as defined in RFC 8561."; description "Denotes and describes a microwave carrier termination point."; } } } } } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes" { when '../../../nw:network-types/tet:te-topology/' + 'mwt:mw-topology' { description "Augmentation parameters apply only for networks with a microwave network topology type."; } description "Augmentation to add microwave technology specific characteristics to a link."; container mw-link { presence "This indicates a microwave link"; description "Specification of type of link."; choice mw-link-option { mandatory true; description "Selection of type of link."; case microwave-radio-link { container microwave-radio-link { presence "Denotes a microwave radio link"; description "Denotes and describes a microwave radio link"; uses microwave-radio-link-attributes; } } case microwave-carrier { container microwave-carrier { presence "Denotes a microwave carrier"; description "Denotes and describes a microwave carrier"; uses microwave-carrier-attributes; } } } } Mansfield, et al. Expires 31 August 2024 [Page 12] Internet-Draft Microwave Topology YANG Model February 2024 } augment "/nw:networks/nw:network/nt:link/tet:te/" + "tet:te-link-attributes/" + "tet:max-link-bandwidth/" + "tet:te-bandwidth" { when '../../../../../nw:network-types/tet:te-topology/' + 'mwt:mw-topology' { description "Augmentation parameters apply only for networks with a microwave network topology type."; } description "Augmentation for TE bandwidth."; uses microwave-bandwidth; } } 3. Security Considerations The YANG module specified in this document defines schemas for data that is designed to be accessed via network management protocols such as NETCONF [RFC6241] or RESTCONF [RFC8040]. The lowest NETCONF layer is the secure transport layer, and the mandatory-to-implement secure transport is Secure Shell (SSH) [RFC6242]. The lowest RESTCONF layer is HTTPS, and the mandatory-to-implement secure transport is TLS [RFC8446]. The NETCONF access control model [RFC8341] provides the means to restrict access for particular NETCONF or RESTCONF users to a preconfigured subset of all available NETCONF or RESTCONF protocol operations and content. The YANG module specified in this document imports and augments the ietf-network and ietf-network-topology models defined in [RFC8345]. The security considerations from [RFC8345] are applicable to the module in this document. There are a several 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. These are the subtrees and data nodes and their sensitivity/vulnerability: Mansfield, et al. Expires 31 August 2024 [Page 13] Internet-Draft Microwave Topology YANG Model February 2024 * rlt-mode: A malicious client could attempt to modify the mode in which the radio link is configured and thereby change the intended behavior of the link. * tx-frequency, rx-frequency and channel-separation: A malicious client could attempt to modify the frequency configuration of a carrier which could modify the intended behavior or make the configuration invalid and thereby stop the operation of it. 4. IANA Considerations IANA is asked to assign a new URI from the "IETF XML Registry" [RFC3688] as follows: URI: urn:ietf:params:xml:ns:yang:ietf-microwave-topology Registrant Contact: The IESG XML: N/A; the requested URI is an XML namespace. It is proposed that IANA record the YANG module names in the "YANG Module Names" registry [RFC6020] as follows: Name: ietf-microwave-topology Maintained by IANA?: N Namespace: urn:ietf:params:xml:ns:yang:ietf-microwave-topology Prefix: mwt Reference: RFC XXXX 5. References 5.1. Normative References [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, . Mansfield, et al. Expires 31 August 2024 [Page 14] Internet-Draft Microwave Topology YANG Model February 2024 [RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017, . [RFC8341] Bierman, A. and M. Bjorklund, "Network Configuration Access Control Model", STD 91, RFC 8341, DOI 10.17487/RFC8341, March 2018, . [RFC8345] Clemm, A., Medved, J., Varga, R., Bahadur, N., Ananthakrishnan, H., and X. Liu, "A YANG Data Model for Network Topologies", RFC 8345, DOI 10.17487/RFC8345, March 2018, . [RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018, . [RFC8561] Ahlberg, J., Ye, M., Li, X., Spreafico, D., and M. Vaupotic, "A YANG Data Model for Microwave Radio Link", RFC 8561, DOI 10.17487/RFC8561, June 2019, . [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, . 5.2. Informative References [EN301129] ETSI, "Transmission and Multiplexing (TM); Digital Radio Relay Systems (DRRS); Synchronous Digital Hierarchy (SDH); System performance monitoring parameters of SDH DRRS", EN 301 129 V1.1.2 , May 1999. [EN302217-1] ETSI, "Fixed Radio Systems; Characteristics and requirements for point-to-point equipment and antennas; Part 1: Overview, common characteristics and system- dependent requirements", EN 302 217-1 V3.1.0 , May 2017. Mansfield, et al. Expires 31 August 2024 [Page 15] Internet-Draft Microwave Topology YANG Model February 2024 [I-D.draft-ietf-ccamp-bwa-topo-yang] Ahlberg, J., Mansfield, S., Ye, M., Busi, I., Li, X., and D. Spreafico, "A YANG Data Model for Bandwidth Availability Topology", Work in Progress, Internet-Draft, draft-ietf-ccamp-bwa-topo-yang-01, 18 October 2023, . [I-D.draft-ietf-ccamp-if-ref-topo-yang] Ahlberg, J., Mansfield, S., Ye, M., Busi, I., Li, X., and D. Spreafico, "A YANG Data Model for Interface Reference Topology", Work in Progress, Internet-Draft, draft-ietf- ccamp-if-ref-topo-yang-01, 18 October 2023, . [RFC8340] Bjorklund, M. and L. Berger, Ed., "YANG Tree Diagrams", BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018, . [RFC8453] Ceccarelli, D., Ed. and Y. Lee, Ed., "Framework for Abstraction and Control of TE Networks (ACTN)", RFC 8453, DOI 10.17487/RFC8453, August 2018, . [RFC8792] Watsen, K., Auerswald, E., Farrel, A., and Q. Wu, "Handling Long Lines in Content of Internet-Drafts and RFCs", RFC 8792, DOI 10.17487/RFC8792, June 2020, . [RFC8944] Dong, J., Wei, X., Wu, Q., Boucadair, M., and A. Liu, "A YANG Data Model for Layer 2 Network Topologies", RFC 8944, DOI 10.17487/RFC8944, November 2020, . Appendix A. Microwave Topology Model with base topology models This appendix provides some examples and illustrations of how the Microwave Topology Model can be used. The tree illustrates an example of a complete Microwave Topology Model including the relevant data nodes from network-topology and te-topology (base topology models). There are also JSON based instantiations of the Microwave Topology Model for a couple of small network examples. The tree below shows an example of the relevant leafs for a complete Microwave Topology Model including the augmented Network Topology Model defined in [RFC8345] and the Traffic Engineering (TE) Topologies model defined in [RFC8795]. Mansfield, et al. Expires 31 August 2024 [Page 16] Internet-Draft Microwave Topology YANG Model February 2024 module: ietf-network +--rw networks +--rw network* [network-id] | +--rw network-id network-id | +--rw network-types | | +--rw tet:te-topology! | | +--rw mwt:mw-topology! | +--rw supporting-network* [network-ref] | | +--rw network-ref -> /networks/network/network-id | +--rw node* [node-id] | | +--rw node-id node-id | | +--rw supporting-node* [network-ref node-ref] | | | +--rw network-ref | | | | -> ../../../supporting-network/network-ref | | | +--rw node-ref -> /networks/network/node/node-id | | +--rw nt:termination-point* [tp-id] | | | +--rw nt:tp-id tp-id | | | +--rw nt:supporting-termination-point* | | | | [network-ref node-ref tp-ref] | | | | +--rw nt:network-ref | | | | | -> ../../../nw:supporting-node/network-ref | | | | +--rw nt:node-ref | | | | | -> ../../../nw:supporting-node/node-ref | | | | +--rw nt:tp-ref leafref | | | +--rw tet:te-tp-id? | | | | te-types:te-tp-id | | | +--rw tet:te! | | | +--rw tet:name? string | | | +--ro tet:geolocation | | | | +--ro tet:altitude? int64 | | | | +--ro tet:latitude? | | | | | geographic-coordinate-degree | | | | +--ro tet:longitude? | | | | geographic-coordinate-degree | | | +--rw mwt:mw-tp! | | | +--rw (mwt:mw-tp-option)? | | | +--:(mwt:microwave-rltp) | | | | +--rw mwt:microwave-rltp! | | | +--:(mwt:microwave-ctp) | | | +--rw mwt:microwave-ctp! | | +--rw tet:te-node-id? te-types:te-node-id | +--rw nt:link* [link-id] | | +--rw nt:link-id link-id | | +--rw nt:source | | | +--rw nt:source-node? -> ../../../nw:node/node-id | | | +--rw nt:source-tp? leafref | | +--rw nt:destination | | | +--rw nt:dest-node? -> ../../../nw:node/node-id Mansfield, et al. Expires 31 August 2024 [Page 17] Internet-Draft Microwave Topology YANG Model February 2024 | | | +--rw nt:dest-tp? leafref | | +--rw nt:supporting-link* [network-ref link-ref] | | | +--rw nt:network-ref | | | | -> ../../../nw:supporting-network/network-ref | | | +--rw nt:link-ref leafref | | +--rw tet:te! | | +--rw (tet:bundle-stack-level)? | | | +--:(tet:bundle) | | | | +--rw tet:bundled-links | | | | +--rw tet:bundled-link* [sequence] | | | | +--rw tet:sequence uint32 | | | | +--rw tet:src-tp-ref? leafref | | | | +--rw tet:des-tp-ref? leafref | | +--rw tet:te-link-attributes | | | +--rw tet:name? string | | | +--rw tet:max-link-bandwidth | | | | +--rw tet:te-bandwidth | | | | +--ro mwt:mw-bandwidth? uint64 | | | +--rw mwt:mw-link! | | | +--rw (mwt:mw-link-option) | | | +--:(mwt:microwave-radio-link) | | | | +--rw mwt:microwave-radio-link! | | | | +--rw mwt:rlt-mode | | | | +--rw mwt:num-bonded-carriers | | | | | uint32 | | | | +--rw mwt:num-protecting-carriers | | | | uint32 | | | +--:(mwt:microwave-carrier) | | | +--rw mwt:microwave-carrier! | | | +--rw mwt:tx-frequency? | | | | uint32 | | | +--rw mwt:rx-frequency? | | | | uint32 | | | +--rw mwt:channel-separation? | | | | uint32 | | | +--ro mwt:actual-tx-cm? | | | | identityref | | | +--ro mwt:actual-snir? | | | | decimal64 | | | +--ro mwt:actual-transmitted-level? | | | decimal64 Figure 2: Microwave Topology with Augmentations Tree The Microwave Topology Model augments the TE Topology Model. Mansfield, et al. Expires 31 August 2024 [Page 18] Internet-Draft Microwave Topology YANG Model February 2024 Node N1 Node N2 +--------------+ +--------------+ | +----------+ | | +----------+ | L2-network | |L2-N1-TP1 | | L2-N1-N2 | |L2-N2-TP2 | | -L2 topology | | o<--------------------->o | | | +----------+ | ' | +----------+ | Supporting | : | ' | : | ' mw link | : | ' | : | : TPs | +----------+ | ' | +----------+ | | |mw-N1- | | mwrl-N1-N2 | | mw-N2- | | MW-network | |RLTP1 o<----------*---------->o RLTP2 | | -MW topology | +----------+ | / \ | +----------+ | | : : | / \ | : : | | :: | / \ | :: | Supporting | +-------:--+ | / \ | +--:-------+ | : TPs | |mw-N1- : *---+--' '--+---* : mw-N2-| | * carriers | |CTP1 : o<--|---------------|-->o : CTP2 | | as bundled | +-------:--+ | | mwc-N1-N2-A | | +--:-------+ | links | : | | | | : | | +----------+ | | | | +----------+ | | |mw-N1-CTP3*---' '---*mw-N2-CTP4| | | | o<--------------------->o | | | +----------+ | mwc-N1-N2-B | +----------+ | +--------------+ +--------------+ Figure 3: Example for L2 over microwave A.1. Instance data for 2+0 mode for a bonded configuration A L2 network with a supporting microwave network, showing a 2+0 microwave configuration. The num-bonded-carriers = 2 and the num- protecting-carriers = 0 which means both carriers are active so there is no redundancy but there is more capacity. The JSON encoding of the 2+0 example data follows: { "ietf-network:networks": { "network": [ { "network-id": "L2-network", "network-types": { "ietf-te-topology:te-topology": {} }, "supporting-network": [ { "network-ref": "mw-network" } ], Mansfield, et al. Expires 31 August 2024 [Page 19] Internet-Draft Microwave Topology YANG Model February 2024 "node": [ { "node-id": "L2-N1", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N1" } ], "ietf-network-topology:termination-point": [ { "tp-id": "L2-N1-TP1", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N1", "tp-ref": "mw-N1-RLTP1" } ] } ] }, { "node-id": "L2-N2", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N2" } ], "ietf-network-topology:termination-point": [ { "tp-id": "L2-N2-TP2", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N2", "tp-ref": "mw-N2-RLTP2" } ] } ] } ], "ietf-network-topology:link": [ { "link-id": "L2-N1-N2", "source": { Mansfield, et al. Expires 31 August 2024 [Page 20] Internet-Draft Microwave Topology YANG Model February 2024 "source-node": "L2-N1", "source-tp": "L2-N1-TP1" }, "destination": { "dest-node": "L2-N2", "dest-tp": "L2-N2-TP2" }, "supporting-link": [ { "network-ref": "mw-network", "link-ref": "mwrl-N1-N2" } ] } ] }, { "network-id": "mw-network", "network-types": { "ietf-te-topology:te-topology": { "ietf-microwave-topology:mw-topology": {} } }, "supporting-network": [ { "network-ref": "mw-network" } ], "node": [ { "node-id": "mw-N1", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N1" } ], "ietf-network-topology:termination-point": [ { "tp-id": "mw-N1-RLTP1", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N1", "tp-ref": "mw-N1-CTP1" }, { "network-ref": "mw-network", Mansfield, et al. Expires 31 August 2024 [Page 21] Internet-Draft Microwave Topology YANG Model February 2024 "node-ref": "mw-N1", "tp-ref": "mw-N1-CTP3" } ], "ietf-te-topology:te-tp-id": "192.0.2.3", "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-rltp": {} } } }, { "tp-id": "mw-N1-CTP1", "ietf-te-topology:te-tp-id": 1, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} } } }, { "tp-id": "mw-N1-CTP3", "ietf-te-topology:te-tp-id": 2, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} } } } ] }, { "node-id": "mw-N2", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N2" } ], "ietf-network-topology:termination-point": [ { "tp-id": "mw-N2-RLTP2", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N2", "tp-ref": "mw-N2-CTP2" }, Mansfield, et al. Expires 31 August 2024 [Page 22] Internet-Draft Microwave Topology YANG Model February 2024 { "network-ref": "mw-network", "node-ref": "mw-N2", "tp-ref": "mw-N2-CTP4" } ], "ietf-te-topology:te-tp-id": "192.0.2.4", "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-rltp": {} } } }, { "tp-id": "mw-N2-CTP2", "ietf-te-topology:te-tp-id": 1, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} } } }, { "tp-id": "mw-N2-CTP4", "ietf-te-topology:te-tp-id": 2, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} } } } ] } ], "ietf-network-topology:link": [ { "link-id": "mwrl-N1-N2", "source": { "source-node": "mw-N1", "source-tp": "mw-N1-RLTP1" }, "destination": { "dest-node": "mw-N2", "dest-tp": "mw-N2-RLTP2" }, "ietf-te-topology:te": { "bundled-links": { "bundled-link": [ Mansfield, et al. Expires 31 August 2024 [Page 23] Internet-Draft Microwave Topology YANG Model February 2024 { "sequence": 1, "src-tp-ref": "mw-N1-CTP1", "des-tp-ref": "mw-N2-CTP2" }, { "sequence": 2, "src-tp-ref": "mw-N1-CTP3", "des-tp-ref": "mw-N2-CTP4" } ] }, "te-link-attributes": { "ietf-microwave-topology:mw-link": { "microwave-radio-link": { "rlt-mode": { "num-bonded-carriers": 2, "num-protecting-carriers": 0 } } } } } }, { "link-id": "mwc-N1-N2-A", "source": { "source-node": "mw-N1", "source-tp": "mw-N1-CTP1" }, "destination": { "dest-node": "mw-N2", "dest-tp": "mw-N2-CTP2" }, "ietf-te-topology:te": { "te-link-attributes": { "ietf-microwave-topology:mw-link": { "microwave-carrier": { "tx-frequency": 10728000, "rx-frequency": 10615000, "channel-separation": 28000 } } } } }, { "link-id": "mwc-N1-N2-B", Mansfield, et al. Expires 31 August 2024 [Page 24] Internet-Draft Microwave Topology YANG Model February 2024 "source": { "source-node": "mw-N1", "source-tp": "mw-N1-CTP3" }, "destination": { "dest-node": "mw-N2", "dest-tp": "mw-N2-CTP4" }, "ietf-te-topology:te": { "te-link-attributes": { "ietf-microwave-topology:mw-link": { "microwave-carrier": { "tx-frequency": 10528000, "rx-frequency": 10415000, "channel-separation": 28000 } } } } } ] } ] } } A.2. Instance data for 1+1 mode for a protected configuration A L2 network with a supporting microwave network, showing a 1+1 microwave configuration. The num-bonded-carriers = 1 and the num- protecting-carriers = 1 which means there is a standby carrier protecting the active carrier. The JSON encoding of the 1+1 example data follows: { "ietf-network:networks": { "network": [ { "network-id": "L2-network", "network-types": { "ietf-te-topology:te-topology": {} }, "supporting-network": [ { "network-ref": "mw-network" } ], "node": [ Mansfield, et al. Expires 31 August 2024 [Page 25] Internet-Draft Microwave Topology YANG Model February 2024 { "node-id": "L2-N1", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N1" } ], "ietf-network-topology:termination-point": [ { "tp-id": "L2-N1-TP1", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N1", "tp-ref": "mw-N1-RLTP1" } ] } ] }, { "node-id": "L2-N2", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N2" } ], "ietf-network-topology:termination-point": [ { "tp-id": "L2-N2-TP2", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N2", "tp-ref": "mw-N2-RLTP2" } ] } ] } ], "ietf-network-topology:link": [ { "link-id": "L2-N1-N2", "source": { "source-node": "L2-N1", Mansfield, et al. Expires 31 August 2024 [Page 26] Internet-Draft Microwave Topology YANG Model February 2024 "source-tp": "L2-N1-TP1" }, "destination": { "dest-node": "L2-N2", "dest-tp": "L2-N2-TP2" }, "supporting-link": [ { "network-ref": "mw-network", "link-ref": "mwrl-N1-N2" } ] } ] }, { "network-id": "mw-network", "network-types": { "ietf-te-topology:te-topology": { "ietf-microwave-topology:mw-topology": {} } }, "supporting-network": [ { "network-ref": "mw-network" } ], "node": [ { "node-id": "mw-N1", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N1" } ], "ietf-network-topology:termination-point": [ { "tp-id": "mw-N1-RLTP1", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N1", "tp-ref": "mw-N1-CTP1" }, { "network-ref": "mw-network", "node-ref": "mw-N1", Mansfield, et al. Expires 31 August 2024 [Page 27] Internet-Draft Microwave Topology YANG Model February 2024 "tp-ref": "mw-N1-CTP3" } ], "ietf-te-topology:te-tp-id": "192.0.2.3", "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-rltp": {} } } }, { "tp-id": "mw-N1-CTP1", "ietf-te-topology:te-tp-id": 1, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} } } }, { "tp-id": "mw-N1-CTP3", "ietf-te-topology:te-tp-id": 2, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} } } } ] }, { "node-id": "mw-N2", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N2" } ], "ietf-network-topology:termination-point": [ { "tp-id": "mw-N2-RLTP2", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N2", "tp-ref": "mw-N2-CTP2" }, { Mansfield, et al. Expires 31 August 2024 [Page 28] Internet-Draft Microwave Topology YANG Model February 2024 "network-ref": "mw-network", "node-ref": "mw-N2", "tp-ref": "mw-N2-CTP4" } ], "ietf-te-topology:te-tp-id": "192.0.2.4", "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-rltp": {} } } }, { "tp-id": "mw-N2-CTP2", "ietf-te-topology:te-tp-id": 1, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} } } }, { "tp-id": "mw-N2-CTP4", "ietf-te-topology:te-tp-id": 2, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} } } } ] } ], "ietf-network-topology:link": [ { "link-id": "mwrl-N1-N2", "source": { "source-node": "mw-N1", "source-tp": "mw-N1-RLTP1" }, "destination": { "dest-node": "mw-N2", "dest-tp": "mw-N2-RLTP2" }, "ietf-te-topology:te": { "bundled-links": { "bundled-link": [ { Mansfield, et al. Expires 31 August 2024 [Page 29] Internet-Draft Microwave Topology YANG Model February 2024 "sequence": 1, "src-tp-ref": "mw-N1-CTP1", "des-tp-ref": "mw-N2-CTP2" }, { "sequence": 2, "src-tp-ref": "mw-N1-CTP3", "des-tp-ref": "mw-N2-CTP4" } ] }, "te-link-attributes": { "ietf-microwave-topology:mw-link": { "microwave-radio-link": { "rlt-mode": { "num-bonded-carriers": 1, "num-protecting-carriers": 1 } } } } } }, { "link-id": "mwc-N1-N2-A", "source": { "source-node": "mw-N1", "source-tp": "mw-N1-CTP1" }, "destination": { "dest-node": "mw-N2", "dest-tp": "mw-N2-CTP2" }, "ietf-te-topology:te": { "te-link-attributes": { "ietf-microwave-topology:mw-link": { "microwave-carrier": { "tx-frequency": 10728000, "rx-frequency": 10615000, "channel-separation": 28000 } } } } }, { "link-id": "mwc-N1-N2-B", "source": { Mansfield, et al. Expires 31 August 2024 [Page 30] Internet-Draft Microwave Topology YANG Model February 2024 "source-node": "mw-N1", "source-tp": "mw-N1-CTP3" }, "destination": { "dest-node": "mw-N2", "dest-tp": "mw-N2-CTP4" }, "ietf-te-topology:te": { "te-link-attributes": { "ietf-microwave-topology:mw-link": { "microwave-carrier": { "tx-frequency": 10728000, "rx-frequency": 10615000, "channel-separation": 28000 } } } } } ] } ] } } Appendix B. Microwave Topology Model with example extensions This non-normative appendix provides examples of how the Microwave Topology Model can be used with the interface reference topology (ifref) [I-D.draft-ietf-ccamp-if-ref-topo-yang] and the bandwidth- availability-topology (bwa) [I-D.draft-ietf-ccamp-bwa-topo-yang] models. There is also a snippet of JSON to show geolocation information instance data. When the JSON files have long lines, [RFC8792] is used to wrap the long lines. The tree below shows an example of the relevant leafs for a complete Microwave Topology Model including interface reference topology (ifref) [I-D.draft-ietf-ccamp-if-ref-topo-yang] and bandwidth- availability-topology (bwa) [I-D.draft-ietf-ccamp-bwa-topo-yang] models. module: ietf-network +--rw networks +--rw network* [network-id] | +--rw network-id network-id | +--rw network-types | | +--rw tet:te-topology! | | +--rw mwt:mw-topology! Mansfield, et al. Expires 31 August 2024 [Page 31] Internet-Draft Microwave Topology YANG Model February 2024 | +--rw supporting-network* [network-ref] | | +--rw network-ref -> /networks/network/network-id | +--rw node* [node-id] | | +--rw node-id node-id | | +--rw supporting-node* [network-ref node-ref] | | | +--rw network-ref | | | | -> ../../../supporting-network/network-ref | | | +--rw node-ref -> /networks/network/node/node-id | | +--rw nt:termination-point* [tp-id] | | | +--rw nt:tp-id tp-id | | | +--rw nt:supporting-termination-point* | | | | [network-ref node-ref tp-ref] | | | | +--rw nt:network-ref | | | | | -> ../../../nw:supporting-node/network-ref | | | | +--rw nt:node-ref | | | | | -> ../../../nw:supporting-node/node-ref | | | | +--rw nt:tp-ref leafref | | | +--rw tet:te-tp-id? | | | | te-types:te-tp-id | | | +--rw tet:te! | | | +--rw tet:name? string | | | +--ro tet:geolocation | | | | +--ro tet:altitude? int64 | | | | +--ro tet:latitude? | | | | | geographic-coordinate-degree | | | | +--ro tet:longitude? | | | | geographic-coordinate-degree | | | +--rw mwt:mw-tp! | | | | +--rw (mwt:mw-tp-option)? | | | | +--:(mwt:microwave-rltp) | | | | | +--rw mwt:microwave-rltp! | | | | +--:(mwt:microwave-ctp) | | | | +--rw mwt:microwave-ctp! | | | +--rw ifref:tp-to-interface-path? | | | -> /if:interfaces/interface/name | | +--rw tet:te-node-id? te-types:te-node-id | +--rw nt:link* [link-id] | | +--rw nt:link-id link-id | | +--rw nt:source | | | +--rw nt:source-node? -> ../../../nw:node/node-id | | | +--rw nt:source-tp? leafref | | +--rw nt:destination | | | +--rw nt:dest-node? -> ../../../nw:node/node-id | | | +--rw nt:dest-tp? leafref | | +--rw nt:supporting-link* [network-ref link-ref] | | | +--rw nt:network-ref | | | | -> ../../../nw:supporting-network/network-ref | | | +--rw nt:link-ref leafref Mansfield, et al. Expires 31 August 2024 [Page 32] Internet-Draft Microwave Topology YANG Model February 2024 | | +--rw tet:te! | | +--rw (tet:bundle-stack-level)? | | | +--:(tet:bundle) | | | | +--rw tet:bundled-links | | | | +--rw tet:bundled-link* [sequence] | | | | +--rw tet:sequence uint32 | | | | +--rw tet:src-tp-ref? leafref | | | | +--rw tet:des-tp-ref? leafref | | +--rw tet:te-link-attributes | | | +--rw tet:name? string | | | +--rw tet:max-link-bandwidth | | | | +--rw tet:te-bandwidth | | | | +--ro mwt:mw-bandwidth? uint64 | | | +--rw mwt:mw-link! | | | | +--rw (mwt:mw-link-option) | | | | +--:(mwt:microwave-radio-link) | | | | | +--rw mwt:microwave-radio-link! | | | | | +--rw mwt:rlt-mode | | | | | +--rw mwt:num-bonded-carriers | | | | | | uint32 | | | | | +--rw mwt:num-protecting-carriers | | | | | uint32 | | | | +--:(mwt:microwave-carrier) | | | | +--rw mwt:microwave-carrier! | | | | +--rw mwt:tx-frequency? | | | | | uint32 | | | | +--rw mwt:rx-frequency? | | | | | uint32 | | | | +--rw mwt:channel-separation? | | | | | uint32 | | | | +--ro mwt:actual-tx-cm? | | | | | identityref | | | | +--ro mwt:actual-snir? | | | | | decimal64 | | | | +--ro mwt:actual-transmitted-level? | | | | decimal64 | | | +--rw bwatopo:link-availability* [availability] | | | | +--rw bwatopo:availability decimal64 | | | | +--rw bwatopo:link-bandwidth? uint64 | | | +--ro bwatopo:actual-bandwidth? | | | yang:gauge64 Figure 4: Microwave Topology with Extensions Tree Microwave is a transport technology which can be used to transport client services, such as L2 Ethernet links. When an L2 link is transported over a single supporting microwave radio link, the topologies could be as shown below. Note that the figure just shows Mansfield, et al. Expires 31 August 2024 [Page 33] Internet-Draft Microwave Topology YANG Model February 2024 an example, there might be other possibilities to demonstrate such a topology. The example of the instantiation encoded in JSON is using only a selected subset of the leafs from the L2 topology model [RFC8944]. The example below uses Figure 3 and adds the Interface related information. Node N1 Interfaces +---------------+ +----------------+ | +-----------+ |tp-to-interface-path| +------------+ | | | L2-N1-TP1 |<---------------------->|L2Interface1| | | +-----------+ | | +------------+ | | | | | | +-----------+ |tp-to-interface-path| +------------+ | | |mw-N1-RLTP1|<---------------------->| RLT-1 | | | +-----------+ | | +------------+ | | | | | | +-----------+ |tp-to-interface-path| +------------+ | | |mw-N1-CTP1 |<---------------------->| CT-1 | | | +-----------+ | | +------------+ | | | | | | +-----------+ |tp-to-interface-path| +------------+ | | |mw-N1-CTP3 |<---------------------->| CT-3 | | | +-----------+ | | +------------+ | +---------------+ +----------------+ ------------------------------------------------------- Node N2 Interfaces +---------------+ +----------------+ | +-----------+ |tp-to-interface-path| +------------+ | | | L2-N2-TP2 |<---------------------->|L2Interface2| | | +-----------+ | | +------------+ | | | | | | +-----------+ |tp-to-interface-path| +------------+ | | |mw-N2-RLTP2|<---------------------->| RLT-2 | | | +-----------+ | | +------------+ | | | | | | +-----------+ |tp-to-interface-path| +------------+ | | |mw-N2-CTP2 |<---------------------->| CT-2 | | | +-----------+ | | +------------+ | | | | | | +-----------+ |tp-to-interface-path| +------------+ | | |mw-N2-CTP4 |<---------------------->| CT-4 | | | +-----------+ | | +------------+ | +---------------+ +----------------+ Figure 5: Interface extension example for L2 over microwave Mansfield, et al. Expires 31 August 2024 [Page 34] Internet-Draft Microwave Topology YANG Model February 2024 B.1. Instance data for 2+0 mode A L2 network with a supporting microwave network, including microwave-topology (MW) and bandwidth-availability-topology (BWA) models as well as the reference to the associated interface management information, is encoded in JSON as follows: { "ietf-interfaces:interfaces": { "interface": [ { "name": "L2Interface1", "description": "'Ethernet Interface 1'", "type": "iana-if-type:ethernetCsmacd" }, { "name": "L2Interface2", "description": "'Ethernet Interface 2'", "type": "iana-if-type:ethernetCsmacd" }, { "name": "RLT-1", "description": "'Radio Link Terminal 1'", "type": "iana-if-type:microwaveRadioLinkTerminal", "ietf-microwave-radio-link:mode": "ietf-microwave-types:two-plus-zero", "ietf-microwave-radio-link:carrier-terminations": [ "CT-1", "CT-3" ] }, { "name": "RLT-2", "description": "'Radio Link Terminal 2'", "type": "iana-if-type:microwaveRadioLinkTerminal", "ietf-microwave-radio-link:mode": "ietf-microwave-types:two-plus-zero", "ietf-microwave-radio-link:carrier-terminations": [ "CT-2", "CT-4" ] }, { "name": "CT-1", "description": "'Carrier Termination 1'", "type": "iana-if-type:microwaveCarrierTermination", "ietf-microwave-radio-link:tx-frequency": 10728000, "ietf-microwave-radio-link:duplex-distance": 113000, Mansfield, et al. Expires 31 August 2024 [Page 35] Internet-Draft Microwave Topology YANG Model February 2024 "ietf-microwave-radio-link:channel-separation": 28000, "ietf-microwave-radio-link:rtpc": { "maximum-nominal-power": "20.0" }, "ietf-microwave-radio-link:single": { "selected-cm": "ietf-microwave-types:qam-512" } }, { "name": "CT-3", "description": "'Carrier Termination 3'", "type": "iana-if-type:microwaveCarrierTermination", "ietf-microwave-radio-link:tx-frequency": 10528000, "ietf-microwave-radio-link:duplex-distance": 113000, "ietf-microwave-radio-link:channel-separation": 28000, "ietf-microwave-radio-link:rtpc": { "maximum-nominal-power": "20.0" }, "ietf-microwave-radio-link:single": { "selected-cm": "ietf-microwave-types:qam-512" } }, { "name": "CT-2", "description": "'Carrier Termination 2'", "type": "iana-if-type:microwaveCarrierTermination", "ietf-microwave-radio-link:tx-frequency": 10615000, "ietf-microwave-radio-link:duplex-distance": 113000, "ietf-microwave-radio-link:channel-separation": 28000, "ietf-microwave-radio-link:rtpc": { "maximum-nominal-power": "20.0" }, "ietf-microwave-radio-link:single": { "selected-cm": "ietf-microwave-types:qam-512" } }, { "name": "CT-4", "description": "'Carrier Termination 4'", "type": "iana-if-type:microwaveCarrierTermination", "ietf-microwave-radio-link:tx-frequency": 10415000, "ietf-microwave-radio-link:duplex-distance": 113000, "ietf-microwave-radio-link:channel-separation": 28000, "ietf-microwave-radio-link:rtpc": { "maximum-nominal-power": "20.0" }, "ietf-microwave-radio-link:single": { "selected-cm": "ietf-microwave-types:qam-512" Mansfield, et al. Expires 31 August 2024 [Page 36] Internet-Draft Microwave Topology YANG Model February 2024 } } ] }, "ietf-network:networks": { "network": [ { "network-id": "L2-network", "network-types": { "ietf-te-topology:te-topology": { "ietf-eth-te-topology:eth-tran-topology": {} } }, "supporting-network": [ { "network-ref": "mw-network" } ], "node": [ { "node-id": "L2-N1", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N1" } ], "ietf-network-topology:termination-point": [ { "tp-id": "L2-N1-TP1", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N1", "tp-ref": "mw-N1-RLTP1" } ] } ], "ietf-te-topology:te-node-id": "192.0.2.1", "ietf-te-topology:te": { "te-node-attributes": { "ietf-eth-te-topology:eth-node": {} } } }, { "node-id": "L2-N2", Mansfield, et al. Expires 31 August 2024 [Page 37] Internet-Draft Microwave Topology YANG Model February 2024 "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N2" } ], "ietf-network-topology:termination-point": [ { "tp-id": "L2-N2-TP2", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N2", "tp-ref": "mw-N2-RLTP2" } ] } ], "ietf-te-topology:te-node-id": "192.0.2.2", "ietf-te-topology:te": { "te-node-attributes": { "ietf-eth-te-topology:eth-node": {} } } } ], "ietf-network-topology:link": [ { "link-id": "L2-N1-N2", "source": { "source-node": "L2-N1", "source-tp": "L2-N1-TP1" }, "destination": { "dest-node": "L2-N2", "dest-tp": "L2-N2-TP2" }, "supporting-link": [ { "network-ref": "mw-network", "link-ref": "mwrl-N1-N2" } ], "ietf-te-topology:te": { "te-link-attributes": { "interface-switching-capability": [ { "switching-capability": "ietf-te-types:switching-l2sc", Mansfield, et al. Expires 31 August 2024 [Page 38] Internet-Draft Microwave Topology YANG Model February 2024 "encoding": "ietf-te-types:lsp-encoding-ethernet" } ] } } } ] }, { "network-id": "mw-network", "network-types": { "ietf-te-topology:te-topology": { "ietf-microwave-topology:mw-topology": {} } }, "supporting-network": [ { "network-ref": "mw-network" } ], "node": [ { "node-id": "mw-N1", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N1" } ], "ietf-network-topology:termination-point": [ { "tp-id": "mw-N1-RLTP1", "supporting-termination-point": [ { "network-ref": "mw-network", "node-ref": "mw-N1", "tp-ref": "mw-N1-CTP1" }, { "network-ref": "mw-network", "node-ref": "mw-N1", "tp-ref": "mw-N1-CTP3" } ], "ietf-te-topology:te-tp-id": "192.0.2.3", "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-rltp": {} Mansfield, et al. Expires 31 August 2024 [Page 39] Internet-Draft Microwave Topology YANG Model February 2024 }, "ietf-tp-interface-reference-topology:tp-to-interface-path": "RLT-1" } }, { "tp-id": "mw-N1-CTP1", "ietf-te-topology:te-tp-id": 1, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} }, "ietf-tp-interface-reference-topology:tp-to-interface-path": "CT-1" } }, { "tp-id": "mw-N1-CTP3", "ietf-te-topology:te-tp-id": 2, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} }, "ietf-tp-interface-reference-topology:tp-to-interface-path": "CT-3" } } ], "ietf-te-topology:te-node-id": "192.0.2.1", "ietf-te-topology:te": { "te-node-attributes": { "ietf-microwave-topology:mw-node": {} } } }, { "node-id": "mw-N2", "supporting-node": [ { "network-ref": "mw-network", "node-ref": "mw-N2" } ], "ietf-network-topology:termination-point": [ { "tp-id": "mw-N2-RLTP2", "supporting-termination-point": [ { Mansfield, et al. Expires 31 August 2024 [Page 40] Internet-Draft Microwave Topology YANG Model February 2024 "network-ref": "mw-network", "node-ref": "mw-N2", "tp-ref": "mw-N2-CTP2" }, { "network-ref": "mw-network", "node-ref": "mw-N2", "tp-ref": "mw-N2-CTP4" } ], "ietf-te-topology:te-tp-id": "192.0.2.4", "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-rltp": {} }, "ietf-tp-interface-reference-topology:tp-to-interface-path": "RLT-2" } }, { "tp-id": "mw-N2-CTP2", "ietf-te-topology:te-tp-id": 1, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} }, "ietf-tp-interface-reference-topology:tp-to-interface-path": "CT-2" } }, { "tp-id": "mw-N2-CTP4", "ietf-te-topology:te-tp-id": 2, "ietf-te-topology:te": { "ietf-microwave-topology:mw-tp": { "microwave-ctp": {} }, "ietf-tp-interface-reference-topology:tp-to-interface-path": "CT-4" } } ], "ietf-te-topology:te-node-id": "192.0.2.1", "ietf-te-topology:te": { "te-node-attributes": { "ietf-microwave-topology:mw-node": {} } } Mansfield, et al. Expires 31 August 2024 [Page 41] Internet-Draft Microwave Topology YANG Model February 2024 } ], "ietf-network-topology:link": [ { "link-id": "mwrl-N1-N2", "source": { "source-node": "mw-N1", "source-tp": "mw-N1-RLTP1" }, "destination": { "dest-node": "mw-N2", "dest-tp": "mw-N2-RLTP2" }, "ietf-te-topology:te": { "bundled-links": { "bundled-link": [ { "sequence": 1, "src-tp-ref": "mw-N1-CTP1", "des-tp-ref": "mw-N2-CTP2" }, { "sequence": 2, "src-tp-ref": "mw-N1-CTP3", "des-tp-ref": "mw-N2-CTP4" } ] }, "te-link-attributes": { "ietf-microwave-topology:mw-link": { "microwave-radio-link": { "rlt-mode": { "num-bonded-carriers": 2, "num-protecting-carriers": 0 } } } } } }, { "link-id": "mwc-N1-N2-A", "source": { "source-node": "mw-N1", "source-tp": "mw-N1-CTP1" }, "destination": { "dest-node": "mw-N2", Mansfield, et al. Expires 31 August 2024 [Page 42] Internet-Draft Microwave Topology YANG Model February 2024 "dest-tp": "mw-N2-CTP2" }, "ietf-te-topology:te": { "te-link-attributes": { "ietf-bandwidth-availability-topology:link-availability": [ { "availability": "0.99", "link-bandwidth": "998423" }, { "availability": "0.95", "link-bandwidth": "1048576" } ], "ietf-microwave-topology:mw-link": { "microwave-carrier": { "tx-frequency": 10728000, "rx-frequency": 10615000, "channel-separation": 28000 } } } } }, { "link-id": "mwc-N1-N2-B", "source": { "source-node": "mw-N1", "source-tp": "mw-N1-CTP3" }, "destination": { "dest-node": "mw-N2", "dest-tp": "mw-N2-CTP4" }, "ietf-te-topology:te": { "te-link-attributes": { "ietf-microwave-topology:mw-link": { "microwave-carrier": { "tx-frequency": 10528000, "rx-frequency": 10415000, "channel-separation": 28000 } } } } } ] } Mansfield, et al. Expires 31 August 2024 [Page 43] Internet-Draft Microwave Topology YANG Model February 2024 ] } } B.2. Instance data for geolocation information This example provides a json snippet that shows geolocation information. "node": [ { "node-id": "mw-N1", ... "ietf-te-topology:te" : { "ietf-te-topology:geolocation": { "altitude": "200000", "latitude": "45", "longitude": "90" } }, "ietf-network-topology:termination-point": [ ... Acknowledgments This document was prepared using the kramdown RFC tool written and maintained by Carsten Bormann. Thanks to Martin Thomson for the github integration of the kramdown RFC tool and for the aasvg tool which is used for the ascii to SVG conversion. The authors would like to thank Tom Petch, Éric Vyncke, and Rob Wilton for their reviews. Contributors Italo Busi Huawei Technologies Email: italo.busi@huawei.com Authors' Addresses Scott Mansfield (editor) Ericsson Inc Email: scott.mansfield@ericsson.com Mansfield, et al. Expires 31 August 2024 [Page 44] Internet-Draft Microwave Topology YANG Model February 2024 Jonas Ahlberg Ericsson AB Lindholmspiren 11 SE-417 56 Goteborg Sweden Email: jonas.ahlberg@ericsson.com Min Ye Huawei Technologies No.1899, Xiyuan Avenue Chengdu 611731 China Email: amy.yemin@huawei.com Xi Li NEC Laboratories Europe Kurfursten-Anlage 36 69115 Heidelberg Germany Email: Xi.Li@neclab.eu Daniela Spreafico Nokia - IT Via Energy Park, 14 20871 Vimercate (MI) Italy Email: daniela.spreafico@nokia.com Mansfield, et al. Expires 31 August 2024 [Page 45]