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Information Model for TE Topology: Usage and Translation

This draft provides an introduction to an Information Model for TE Topology, including its relevance, development work, and how it can assist in Data Model development. It also discusses updates and next steps for leveraging the model.

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Information Model for TE Topology: Usage and Translation

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  1. IETF 93 draft-lam-teas-usage-info-model-net-topology-01

  2. Summary • Version 00 presented in IETF 92 • Provided introduction to an Information Model relevant to the data modeling work on Topology underway in the IETF, describing: • Relevant work under development outside of the IETF • How the Information Model topology subset can be utilized to assist in Data Model development • Doesn’t suggest /attempt to drive IM development in the IETF • Updates in 01 • Replaced reference to previously draft Core Information Model liaised from ONF with published ONF TR-512 “ONF-CIM Core Model” (Base Document 1.0 + Model 1.0) • Provided an example of Topology model usage via translating the “Link” object classes to YANG (using the UML-YANG Mapping Guidelines in draft-mansfield-netmod-uml-to-yang) • Updated other (previously liaised) references to point to published documents

  3. Core Information Model Topology Subset YANG translation available in v01 YANG translation to be provided in next version

  4. Next Steps • Leverage Topology model to assist in ensuring the consistency and completeness of YANG data model for TE topologies solutions work • Complete the Core IM – Topology Subset translation into YANG • Examine /assess resultant derived YANG DM in context of existing drafts • Support work efforts of i2rs and teas for harmonizing YANG topology modules • Engage on mailing list, using standard IETF process • Update draft-lam per feedback • Support enhancements of related YANG modules under development • Aspire to be adopted as WG draft leading to an Informational RFC

  5. References • IETF drafts • draft-lam: https://tools.ietf.org/html/draft-lam-teas-usage-info-model-net-topology-01 • draft-betts: https://tools.ietf.org/html/draft-betts-netmod-framework-data-schema-uml-01 • draft-mansfield: https://datatracker.ietf.org/doc/draft-mansfield-netmod-uml-to-yang/ • ONF Liaison (https://datatracker.ietf.org/liaison/1406/) re approval and public availability of: • ONF-CIM Core Model base document 1.0 + Model 1.0 (March 2015 | TR-512) • Common Information Model (CIM) Overview 1.0 (March 2015 | TR-513) • UML Modeling Guidelines 1.0 (March 2015 | TR-514) • Papyrus Guidelines 1.0 (March 2015 | TR-515)

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