A Generic Autonomic Signaling Protocol (GRASP)
draft-ietf-anima-grasp-10

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Network Working Group                                         C. Bormann
Internet-Draft                                   Universitaet Bremen TZI
Intended status: Standards Track                       B. Carpenter, Ed.
Expires: September 11, 2017                            Univ. of Auckland
                                                             B. Liu, Ed.
                                            Huawei Technologies Co., Ltd
                                                          March 10, 2017

             A Generic Autonomic Signaling Protocol (GRASP)
                       draft-ietf-anima-grasp-10

Abstract

   This document establishes requirements for a signaling protocol that
   enables autonomic nodes and autonomic service agents to dynamically
   discover peers, to synchronize state with them, and to negotiate
   parameter settings with them.  The document then defines a general
   protocol for discovery, synchronization and negotiation, while the
   technical objectives for specific scenarios are to be described in
   separate documents.  An Appendix briefly discusses existing protocols
   with comparable features.

Status of This Memo

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   This Internet-Draft will expire on September 11, 2017.

Copyright Notice

   Copyright (c) 2017 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
   (http://trustee.ietf.org/license-info) in effect on the date of

Bormann, et al.        Expires September 11, 2017               [Page 1]
Internet-Draft                    GRASP                       March 2017

   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Requirement Analysis of Discovery, Synchronization and
       Negotiation . . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Requirements for Discovery  . . . . . . . . . . . . . . .   5
     2.2.  Requirements for Synchronization and Negotiation
           Capability  . . . . . . . . . . . . . . . . . . . . . . .   6
     2.3.  Specific Technical Requirements . . . . . . . . . . . . .   9
   3.  GRASP Protocol Overview . . . . . . . . . . . . . . . . . . .  10
     3.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .  10
     3.2.  High Level Deployment Model . . . . . . . . . . . . . . .  12
     3.3.  High Level Design Choices . . . . . . . . . . . . . . . .  13
     3.4.  Quick Operating Overview  . . . . . . . . . . . . . . . .  16
     3.5.  GRASP Protocol Basic Properties and Mechanisms  . . . . .  16
       3.5.1.  Required External Security Mechanism  . . . . . . . .  16
       3.5.2.  Constrained Instances . . . . . . . . . . . . . . . .  17
       3.5.3.  Transport Layer Usage . . . . . . . . . . . . . . . .  19
       3.5.4.  Discovery Mechanism and Procedures  . . . . . . . . .  20
       3.5.5.  Negotiation Procedures  . . . . . . . . . . . . . . .  23
       3.5.6.  Synchronization and Flooding Procedures . . . . . . .  25
     3.6.  GRASP Constants . . . . . . . . . . . . . . . . . . . . .  27
     3.7.  Session Identifier (Session ID) . . . . . . . . . . . . .  28
     3.8.  GRASP Messages  . . . . . . . . . . . . . . . . . . . . .  29
       3.8.1.  Message Overview  . . . . . . . . . . . . . . . . . .  29
       3.8.2.  GRASP Message Format  . . . . . . . . . . . . . . . .  29
       3.8.3.  Message Size  . . . . . . . . . . . . . . . . . . . .  30
       3.8.4.  Discovery Message . . . . . . . . . . . . . . . . . .  30
       3.8.5.  Discovery Response Message  . . . . . . . . . . . . .  31
       3.8.6.  Request Messages  . . . . . . . . . . . . . . . . . .  32
       3.8.7.  Negotiation Message . . . . . . . . . . . . . . . . .  33
       3.8.8.  Negotiation End Message . . . . . . . . . . . . . . .  34
       3.8.9.  Confirm Waiting     Message . . . . . . . . . . . . .  34
       3.8.10. Synchronization Message . . . . . . . . . . . . . . .  34