Intent-Based Networking - Concepts and Definitions
draft-irtf-nmrg-ibn-concepts-definitions-02

Document Type Active Internet-Draft (nmrg RG)
Authors Alexander Clemm  , Laurent Ciavaglia  , Lisandro Granville  , Jeff Tantsura 
Last updated 2020-10-06 (latest revision 2020-09-15)
Replaces draft-clemm-nmrg-dist-intent
Stream IRTF
Intended RFC status Informational
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Stream IRTF state In RG Last Call
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Document shepherd Jérôme François
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Send notices to jerome.francois@inria.fr
Network Working Group                                           A. Clemm
Internet-Draft                                                 Futurewei
Intended status: Informational                              L. Ciavaglia
Expires: March 19, 2021                                            Nokia
                                                            L. Granville
                         Federal University of Rio Grande do Sul (UFRGS)
                                                             J. Tantsura
                                                            Apstra, Inc.
                                                      September 15, 2020

           Intent-Based Networking - Concepts and Definitions
              draft-irtf-nmrg-ibn-concepts-definitions-02

Abstract

   Intent and Intent-Based Networking (IBN) are taking the industry by
   storm.  At the same time, those terms are used loosely and often
   inconsistently, in many cases overlapping and confused with other
   concepts such as "Policy".  This document clarifies the concept of
   "Intent" and provides an overview of functionality that is associated
   with it.  The goal is to contribute towards a common and shared
   understanding of terms, concepts, and functionality that can be used
   as foundation to guide further definition of associated research and
   engineering problems and their solutions.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on March 19, 2021.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Clemm, et al.            Expires March 19, 2021                 [Page 1]
Internet-Draft                                            September 2020

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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Key Words . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Definitions and Acronyms  . . . . . . . . . . . . . . . . . .   4
   4.  Introduction of Concepts  . . . . . . . . . . . . . . . . . .   5
     4.1.  Intent and Intent-Based Management  . . . . . . . . . . .   5
     4.2.  Related Concepts  . . . . . . . . . . . . . . . . . . . .   8
       4.2.1.  Service Models  . . . . . . . . . . . . . . . . . . .   8
       4.2.2.  Policy and Policy-Based Network Management  . . . . .   9
       4.2.3.  Distinguishing between Intent, Policy, and Service
               Models  . . . . . . . . . . . . . . . . . . . . . . .  11
   5.  Principles  . . . . . . . . . . . . . . . . . . . . . . . . .  12
   6.  Intent-Based Networking - Functionality . . . . . . . . . . .  15
     6.1.  Intent Fulfillment  . . . . . . . . . . . . . . . . . . .  16
       6.1.1.  Intent Ingestion and Interaction with Users . . . . .  16
       6.1.2.  Intent Translation  . . . . . . . . . . . . . . . . .  16
       6.1.3.  Intent Orchestration  . . . . . . . . . . . . . . . .  17
     6.2.  Intent Assurance  . . . . . . . . . . . . . . . . . . . .  17
       6.2.1.  Monitoring  . . . . . . . . . . . . . . . . . . . . .  17
       6.2.2.  Intent Compliance Assessment  . . . . . . . . . . . .  17
       6.2.3.  Intent Compliance Actions . . . . . . . . . . . . . .  18
       6.2.4.  Abstraction, Aggregation, Reporting . . . . . . . . .  18
   7.  Life-cycle  . . . . . . . . . . . . . . . . . . . . . . . . .  18
   8.  Additional Considerations . . . . . . . . . . . . . . . . . .  20
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  20
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  22
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  22
     11.2.  Informative References . . . . . . . . . . . . . . . . .  22
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