Framework for Use of ECA (Event Condition Action) in Network Self Management
draft-bwd-netmod-eca-framework-00

• Status
• IESG evaluation record
• IESG writeups
• Email expansions
• History

• Versions
• 00

NETMOD Working Group                                        M. Boucadair
Internet-Draft                                                    Orange
Intended status: Standards Track                                   Q. Wu
Expires: May 6, 2020                                             Z. Wang
                                                                  Huawei
                                                                 D. King
                                                    Lancaster University
                                                                  C. Xie
                                                           China Telecom
                                                        November 3, 2019

   Framework for Use of ECA (Event Condition Action) in Network Self
                               Management
                   draft-bwd-netmod-eca-framework-00

Abstract

   Event-driven management is meant to provide a useful method to
   monitor state change of managed objects and resources, and facilitate
   automatic triggering of a response to events, based on an established
   set of rules.  This would provide rapid autonomic responses to
   specific conditions, enabling self-management behaviors, including:
   self-configuration, self-healing, self-optimization, and self-
   protection.

   This document provides a framework that describes the architecture
   for supporting event-driven management of managed object state across
   devices.  It does not describe specific protocols or protocol
   extensions needed to realize the objectives and capabilities
   discussed in the document.

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 May 6, 2020.

Boucadair, et al.          Expires May 6, 2020                  [Page 1]
Internet-Draft                ECA Framework                November 2019

Copyright Notice

   Copyright (c) 2019 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  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Problem Statement . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Defining Network Event and Network Control Logic  . . . .   4
     2.2.  Delegating Network Control Logic to Network Device  . . .   4
     2.3.  Executing ECA Script in the Network Device  . . . . . . .   5
     2.4.  Event-Driven Notification Handling  . . . . . . . . . . .   6
     2.5.  Requisite State Information . . . . . . . . . . . . . . .   6
   3.  Architectural Concepts  . . . . . . . . . . . . . . . . . . .   7
     3.1.  What is Defined in ECA Policy?  . . . . . . . . . . . . .   7
     3.2.  Where is ECA Script and State Held? . . . . . . . . . . .   8
     3.3.  What State is Held? . . . . . . . . . . . . . . . . . . .   9
   4.  Architecture Overview . . . . . . . . . . . . . . . . . . . .   9
     4.1.  Telemetry Automation in the Network Device  . . . . . . .  10
     4.2.  Detecting and Resolving Policy Conflict . . . . . . . . .  12
     4.3.  Chain Reaction of Coordinated Events  . . . . . . . . . .  12
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  13
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  13
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

1.  Introduction

   Network management data objects can often take two different values:
   the value configured by the administrator or an application
   (configuration) and the value that the device is actually using