A YANG Data Model for the Routing Information Base (RIB)
RFC 8431

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Internet Engineering Task Force (IETF)                           L. Wang
Request for Comments: 8431                                    Individual
Category: Standards Track                                        M. Chen
ISSN: 2070-1721                                                   Huawei
                                                                 A. Dass
                                                                Ericsson
                                                      H. Ananthakrishnan
                                                                 Netflix
                                                                 S. Kini
                                                              Individual
                                                              N. Bahadur
                                                                    Uber
                                                          September 2018

        A YANG Data Model for the Routing Information Base (RIB)

Abstract

   This document defines a YANG data model for the Routing Information
   Base (RIB) that aligns with the Interface to the Routing System
   (I2RS) RIB information model.

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
   https://www.rfc-editor.org/info/rfc8431.

Wang, et al.                 Standards Track                    [Page 1]
RFC 8431                     RIB Data Model               September 2018

Copyright Notice

   Copyright (c) 2018 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 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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
     1.2.  Definitions and Abbreviations . . . . . . . . . . . . . .   3
     1.3.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Model Structure . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  RIB Capability  . . . . . . . . . . . . . . . . . . . . .   8
     2.2.  Routing Instance and RIB  . . . . . . . . . . . . . . . .   8
     2.3.  Route . . . . . . . . . . . . . . . . . . . . . . . . . .   9
     2.4.  Nexthop . . . . . . . . . . . . . . . . . . . . . . . . .  11
     2.5.  RPC Operations  . . . . . . . . . . . . . . . . . . . . .  15
     2.6.  Notifications . . . . . . . . . . . . . . . . . . . . . .  20
   3.  YANG Module . . . . . . . . . . . . . . . . . . . . . . . . .  22
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  67
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  67
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  68
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .  68
     6.2.  Informative References  . . . . . . . . . . . . . . . . .  69
   Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . .  70
   Contributors  . . . . . . . . . . . . . . . . . . . . . . . . . .  70
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  71

Wang, et al.                 Standards Track                    [Page 2]
RFC 8431                     RIB Data Model               September 2018

1.  Introduction

   The Interface to the Routing System (I2RS) [RFC7921] provides read
   and write access to the information and state within the routing
   process that exists inside the routing elements; this is achieved via
   protocol message exchange between I2RS clients and I2RS agents
   associated with the routing system.  One of the functions of I2RS is
   to read and write data of the Routing Information Base (RIB).
   [I2RS-REQS] introduces a set of RIB use cases.  The RIB information
   model is defined in [RFC8430].

   This document defines a YANG data model [RFC7950] [RFC6991] for the
   RIB that satisfies the RIB use cases and aligns with the RIB
   information model.

1.1.  Requirements Language