Intent-Based Networking - Concepts and Definitions
draft-irtf-nmrg-ibn-concepts-definitions-01
Network Working Group A. Clemm
Internet-Draft Futurewei
Intended status: Informational L. Ciavaglia
Expires: September 10, 2020 Nokia
L. Granville
Federal University of Rio Grande do Sul (UFRGS)
J. Tantsura
Apstra, Inc.
March 9, 2020
Intent-Based Networking - Concepts and Definitions
draft-irtf-nmrg-ibn-concepts-definitions-01
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
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This Internet-Draft will expire on September 10, 2020.
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
Clemm, et al. Expires September 10, 2020 [Page 1]
Internet-Draft March 2020
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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 . . . . . . . . . . . . . . . . . . . 7
4.2.2. Policy and Policy-Based Network Management . . . . . 8
4.2.3. Distinguishing between Intent, Policy, and Service
Models . . . . . . . . . . . . . . . . . . . . . . . 10
5. Principles . . . . . . . . . . . . . . . . . . . . . . . . . 11
6. Intent-Based Networking - Functionality . . . . . . . . . . . 14
6.1. Intent Fulfillment . . . . . . . . . . . . . . . . . . . 14
6.2. Intent Assurance . . . . . . . . . . . . . . . . . . . . 15
7. Life-cycle . . . . . . . . . . . . . . . . . . . . . . . . . 16
8. Items for Discussion . . . . . . . . . . . . . . . . . . . . 17
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 18
10. Security Considerations . . . . . . . . . . . . . . . . . . . 18
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 19
11.1. Normative References . . . . . . . . . . . . . . . . . . 19
11.2. Informative References . . . . . . . . . . . . . . . . . 20
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 21
1. Introduction
Traditionally in the IETF, interest regarding 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 of this is SNMP-based management and the 200+ MIBs that
have been defined by the IETF over the years. More recent examples
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