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The YANG 1.1 Data Modeling Language (RFC7950) Disclosure Number: IPCOM000247394D
Original Publication Date: 2016-Aug-01
Included in the Prior Art Database: 2016-Sep-01

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Bjorklund: AUTHOR [+1]


YANG is a data modeling language originally designed to model configuration and state data manipulated by the Network Configuration Protocol (NETCONF), NETCONF Remote Procedure Calls, and NETCONF notifications [RFC6241]. Since the publication of YANG version 1 [RFC6020], YANG has been used or proposed to be used for other protocols (e.g., RESTCONF [RESTCONF] and the Constrained Application Protocol (CoAP) Management Interface (CoMI) [CoMI]). Further, encodings other than XML have been proposed (e.g., JSON [RFC7951]).

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Internet Engineering Task Force (IETF)                 M. Bjorklund, Ed. Request for Comments: 7950                                Tail-f Systems Category: Standards Track                                    August 2016 ISSN: 2070-1721

                   The YANG 1.1 Data Modeling Language


   YANG is a data modeling language used to model configuration data,    state data, Remote Procedure Calls, and notifications for network    management protocols.  This document describes the syntax and    semantics of version 1.1 of the YANG language.  YANG version 1.1 is a    maintenance release of the YANG language, addressing ambiguities and    defects in the original specification.  There are a small number of    backward incompatibilities from YANG version 1.  This document also    specifies the YANG mappings to the Network Configuration Protocol    (NETCONF).

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on    Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

 Bjorklund                    Standards Track                    [Page 1]
 RFC 7950                        YANG 1.1                     August 2016

 Copyright Notice

   Copyright (c) 2016 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    ( 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 Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

   This document may contain material from IETF Documents or IETF    Contributions published or made publicly available before November    10, 2008.  The person(s) controlling the copyright in some of this    material may not have granted the IETF Trust the right to allow    modifications of such material outside the IETF Standards Process.    Without obtaining an adequate license from the person(s) control...