Extending YANG with Language Abstractions

Abstract

YANG-the Network Configuration Protocol (NETCONF) Data Modeling Language-supports modeling of a tree of data elements that represent the configuration and runtime status of a particular network element managed via NETCONF. This memo suggests enhancing YANG with supplementary modeling features and language abstractions with the aim to improve the model extensibility and reuse. Status of This Memo This document is not an Internet Standards Track specification; it is published for examination, experimental implementation, and evaluation. This document defines an Experimental Protocol for the Internet community. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6095. Linowski, et al.

An Overview of the IETF Network Management Standards

“…The Experimental RFC [RFC6095] specifies extensions for YANG, introducing language abstractions such as class inheritance and recursive data structures.…”

UML visualization of YANG models

“…W hen we used YANG in projects, there was a need to specify "kinds" of things; for example product, service, and resource. There are several approaches to accomplish this in YANG such as the work by Linowski et al [17]. We We have started to look at a full round-trip engineering approach where initial UML diagrams can generate YANG skeletons.…”