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