Generic Autonomic Signaling Protocol Application Program Interface (GRASP API)
draft-ietf-anima-grasp-api-02

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Network Working Group                                       B. Carpenter
Internet-Draft                                         Univ. of Auckland
Intended status: Informational                               B. Liu, Ed.
Expires: January 1, 2019                             Huawei Technologies
                                                                 W. Wang
                                                                 X. Gong
                                                         BUPT University
                                                           June 30, 2018

   Generic Autonomic Signaling Protocol Application Program Interface
                              (GRASP API)
                     draft-ietf-anima-grasp-api-02

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.

Status of This Memo

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   This Internet-Draft will expire on January 1, 2019.

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   Copyright (c) 2018 IETF Trust and the persons identified as the
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Carpenter, et al.        Expires January 1, 2019                [Page 1]
Internet-Draft                  GRASP API                      June 2018

   carefully, as they describe your rights and restrictions with respect
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  GRASP API for ASA . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Design Principles . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Asynchronous Operations . . . . . . . . . . . . . . . . .   5
     2.3.  API definition  . . . . . . . . . . . . . . . . . . . . .   6
       2.3.1.  Parameters and data structures  . . . . . . . . . . .   6
       2.3.2.  Registration  . . . . . . . . . . . . . . . . . . . .   9
       2.3.3.  Discovery . . . . . . . . . . . . . . . . . . . . . .  12
       2.3.4.  Negotiation . . . . . . . . . . . . . . . . . . . . .  12
       2.3.5.  Synchronization and Flooding  . . . . . . . . . . . .  17
       2.3.6.  Invalid Message Function  . . . . . . . . . . . . . .  21
   3.  Example Logic Flows . . . . . . . . . . . . . . . . . . . . .  21
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .  21
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  22
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  22
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  22
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  22
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  22
   Appendix A.  Error Codes  . . . . . . . . . . . . . . . . . . . .  23
   Appendix B.  Change log [RFC Editor: Please remove] . . . . . . .  24
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  26

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,
   which is only responsible for sending and receiving GRASP messages
   and maintaining shared data structures.  The upper layer contains
   some extended functions based upon GRASP basic protocol.  For
   example, [I-D.liu-anima-grasp-distribution] describes a possible
   extended function.

   It is desirable that ASAs can be designed as portable user-space