Intent-Based Networking - Concepts and Definitions
draft-irtf-nmrg-ibn-concepts-definitions-00
Network Working Group A. Clemm
Internet-Draft Futurewei
Intended status: Informational L. Ciavaglia
Expires: June 26, 2020 Nokia
L. Granville
Federal University of Rio Grande do Sul (UFRGS)
J. Tantsura
Apstra, Inc.
December 24, 2019
Intent-Based Networking - Concepts and Definitions
draft-irtf-nmrg-ibn-concepts-definitions-00
Abstract
Intent and Intent-Based Networking 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 is intended to clarify the
concept of "Intent" and provide an overview of functionality that
associated with it. The goal is to contribute towards a common and
shared understanding of terms, concepts, and functionality which 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.
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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 June 26, 2020.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
Clemm, et al. Expires June 26, 2020 [Page 1]
Internet-Draft December 2019
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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 . . . . . . . . . . . . . . . . . . . . 6
4.2.1. Service Models . . . . . . . . . . . . . . . . . . . 6
4.2.2. Policy and Policy-Based Management . . . . . . . . . 8
4.2.3. Distinguishing between Intent, Policy, and Service
Models . . . . . . . . . . . . . . . . . . . . . . . 10
5. Principles . . . . . . . . . . . . . . . . . . . . . . . . . 11
6. Lifecycle . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7. Intent-Based Networking - Functionality . . . . . . . . . . . 18
7.1. Intent Fulfillment . . . . . . . . . . . . . . . . . . . 18
7.2. Intent Assurance . . . . . . . . . . . . . . . . . . . . 18
8. Items for Discussion . . . . . . . . . . . . . . . . . . . . 19
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19
10. Security Considerations . . . . . . . . . . . . . . . . . . . 19
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 19
11.1. Normative References . . . . . . . . . . . . . . . . . . 19
11.2. Informative References . . . . . . . . . . . . . . . . . 19
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 21
1. Introduction
Traditionally in the IETF, interest with regard to management and
operations has focused on individual network and device features.
Standardization emphasis has generally been put on management
instrumentation that needed to be provided to a networking device. A
prime example for this is SNMP-based management and the 200+ MIBs
that have been defined by the IETF over the years. More recent
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