A YANG Model for MPLS MSD
draft-qu-mpls-mpls-msd-yang-00

Document Type Active Internet-Draft (individual)
Authors Yingzhen Qu  , Acee Lindem  , Stephane Litkowski  , Jeff Tantsura 
Last updated 2021-02-04
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Internet                                                           Y. Qu
Internet-Draft                                                 Futurewei
Intended status: Standards Track                               A. Lindem
Expires: August 8, 2021                                     S. Litkowski
                                                           Cisco Systems
                                                             J. Tantsura
                                                                 Juniper
                                                        February 4, 2021

                       A YANG Model for MPLS MSD
                     draft-qu-mpls-mpls-msd-yang-00

Abstract

   This document defines a YANG data module augmenting the IETF MPLS
   YANG model to provide support for MPLS Maximum SID Depths (MSDs) as
   defined RFC 8476 and RFC 8491.

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   This Internet-Draft will expire on August 8, 2021.

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   Copyright (c) 2021 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
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   2
   2.  YANG Module for MPLS MSD  . . . . . . . . . . . . . . . . . .   3
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   7
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Overview

   YANG [RFC6020] [RFC7950] is a data definition language used to define
   the contents of a conceptual data store that allows networked devices
   to be managed using NETCONF [RFC6241].  YANG is proving relevant
   beyond its initial confines, as bindings to other interfaces (e.g.,
   ReST) and encodings other than XML (e.g., JSON) are being defined.
   Furthermore, YANG data models can be used as the basis for
   implementation of other interfaces, such as CLI and programmatic
   APIs.

   This document defines a YANG data module augmenting the IETF MPLS
   YANG model [RFC8960], which itself augments [RFC8349], to provide
   operational state for various MSDs[RFC8662].

   The augmentation defined in this document requires support for the
   MPLS base model[RFC8960] which defines basic MPLS configuration and
   state.

   The YANG module in this document conforms to the Network Management
   Datastore Architecture (NMDA) [RFC8342].

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119].

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2.  YANG Module for MPLS MSD

   This document defines a YANG module for MSD extensions
   [RFC8476][RFC8491] to MPLS base model as defined in [RFC8960].

   module: ietf-mpls-msd
     augment /rt:routing/mpls:mpls:
       +--ro msd
          +--ro node-msds* [msd-type]
          |  +--ro msd-type     identityref
          |  +--ro msd-value?   uint8
          +--ro link-msds* [interface]
             +--ro interface    if:interface-ref
             +--ro link-msd* [msd-type]
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