Generic Autonomic Signaling Protocol Application Program Interface (GRASP API)
draft-ietf-anima-grasp-api-06

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Network Working Group                                    B. E. Carpenter
Internet-Draft                                         Univ. of Auckland
Intended status: Informational                               B. Liu, Ed.
Expires: 14 December 2020                            Huawei Technologies
                                                                 W. Wang
                                                                 X. Gong
                                                         BUPT University
                                                            12 June 2020

   Generic Autonomic Signaling Protocol Application Program Interface
                              (GRASP API)
                     draft-ietf-anima-grasp-api-06

Abstract

   This document is a conceptual outline of an application programming
   interface (API) for the Generic Autonomic Signaling Protocol (GRASP).
   Such an API is needed for Autonomic Service Agents (ASA) calling the
   GRASP protocol module to exchange autonomic network messages with
   other ASAs.  Since GRASP is designed to support asynchronous
   operations, the API will need to be adapted to the support for
   asynchronicity in various languages and operating systems.

Status of This Memo

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   This Internet-Draft will expire on 14 December 2020.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Carpenter, et al.       Expires 14 December 2020                [Page 1]
Internet-Draft                  GRASP API                      June 2020

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  GRASP API for ASA . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Design Assumptions  . . . . . . . . . . . . . . . . . . .   4
     2.2.  Asynchronous Operations . . . . . . . . . . . . . . . . .   5
       2.2.1.  Alternative Asynchronous Mechanisms . . . . . . . . .   6
       2.2.2.  Multiple Negotiation Scenario . . . . . . . . . . . .   7
       2.2.3.  Overlapping Sessions and Operations . . . . . . . . .   8
     2.3.  API definition  . . . . . . . . . . . . . . . . . . . . .   8
       2.3.1.  Parameters and data structures  . . . . . . . . . . .   8
       2.3.2.  Registration  . . . . . . . . . . . . . . . . . . . .  12
       2.3.3.  Discovery . . . . . . . . . . . . . . . . . . . . . .  14
       2.3.4.  Negotiation . . . . . . . . . . . . . . . . . . . . .  15
       2.3.5.  Synchronization and Flooding  . . . . . . . . . . . .  21
       2.3.6.  Invalid Message Function  . . . . . . . . . . . . . .  24
   3.  Implementation Status [RFC Editor: please remove] . . . . . .  25
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  25
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  25
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  25
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  25
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  25
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  26
   Appendix A.  Error Codes  . . . . . . . . . . . . . . . . . . . .  26
   Appendix B.  Change log [RFC Editor: Please remove] . . . . . . .  27
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  29

1.  Introduction

   As defined in [I-D.ietf-anima-reference-model], the Autonomic Service
   Agent (ASA) is the atomic entity of an autonomic function, and it is
   instantiated on autonomic nodes.  When ASAs communicate with each
   other, they should use the Generic Autonomic Signaling Protocol
   (GRASP) [I-D.ietf-anima-grasp].

   As the following figure shows, a GRASP implementation could contain
   two major sub-layers.  The bottom is the GRASP base protocol module,