YANG model for finite state machine
draft-sambo-netmod-yang-fsm-04

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Last updated 2018-10-22
Replaces draft-sambo-opsawg-ccamp-supa-ext-yang-fsm
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- Yang catalog entry for finite-state-machine@2016-03-15.yang
- Yang catalog entry for transitions@2016-03-15.yang
- Yang impact analysis for draft-sambo-netmod-yang-fsm
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NETMOD Working Group                                            N. Sambo
Internet-Draft                                               P. Castoldi
Intended status: Standards Track              Scuola Superiore Sant'Anna
Expires: April 25, 2019                                      G. Fioccola
                                                     Huawei Technologies
                                                               F. Cugini
                                                                    CNIT
                                                                 H. Song
                                                                 T. Zhou
                                                                  Huawei
                                                        October 22, 2018

                  YANG model for finite state machine
                     draft-sambo-netmod-yang-fsm-04

Abstract

   Network operators and service providers are facing the challenge of
   deploying systems from different vendors while looking for a trade-
   off among transmission performance, network device reuse, and capital
   expenditure without the need of being tied to single vendor
   equipment.  The deployment and operation of more dynamic and
   programmable network infrastructures can be driven by adopting model-
   driven and software-defined control and management paradigms.  In
   this context, YANG enables to compile a set of consistent vendor-
   neutral data models for networks and components based on actual
   operational needs emerging from heterogeneous use cases.  This
   document proposes YANG models to describe events, operations, and
   finite state machine of YANG-defined network elements.  The proposed
   models can be applied in several use cases: i) in the context of
   optical networks to pre-instruct data plane devices (e.g., an optical
   transponder) on the actions to be performed (e.g., code adaptation)
   in case some events, such as physical layer degradations, occur; ii)
   in general data networks, network telemetry applications can define
   and embed custom data probes into data plane devices.  A probe in
   many cases can be modeled as an FSM; iii) the monitoring of packet
   loss and delay through a network clustering approach.

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
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Sambo, et al.            Expires April 25, 2019                 [Page 1]
Internet-Draft                YANG for FSM                  October 2018

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   This Internet-Draft will expire on April 25, 2019.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Example of application  . . . . . . . . . . . . . . . . . . .   4
     4.1.  Pre-programming resiliency schemes in EONs  . . . . . . .   4
     4.2.  Deploying Dynamic Probes for Programmable Network
           Telemetry . . . . . . . . . . . . . . . . . . . . . . . .   8
     4.3.  IP Performance Measurements on multipoint-to-multipoint
           large Networks  . . . . . . . . . . . . . . . . . . . . .  10
   5.  YANG for finite state machine (FSM) . . . . . . . . . . . . .  11
   6.  Implementation of the pre-programming resiliency schemes in
       EONs  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
   7.  Appendix  . . . . . . . . . . . . . . . . . . . . . . . . . .  15
     7.1.  YANG model for FSM - Tree . . . . . . . . . . . . . . . .  15
     7.2.  YANG model for FSM - Code . . . . . . . . . . . . . . . .  16
     7.3.  Example of values for the YANG model  . . . . . . . . . .  28
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