Scenarios and Requirements for Layer 2 Autonomic Control Planes
draft-carpenter-anima-l2acp-scenarios-02

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Network Working Group                                    B. E. Carpenter
Internet-Draft                                         Univ. of Auckland
Intended status: Informational                                    B. Liu
Expires: 11 October 2020                             Huawei Technologies
                                                            9 April 2020

    Scenarios and Requirements for Layer 2 Autonomic Control Planes
                draft-carpenter-anima-l2acp-scenarios-02

Abstract

   This document discusses scenarios and requirements for Autonomic
   Control Planes (ACPs) constructed and secured at Layer 2.  These
   would be alternatives to an ACP constructed and secured at the
   network layer.  A secure ACP is required as the substrate for an
   autonomic network and for the Generic Autonomic Signaling Protocol
   (GRASP).

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   This Internet-Draft will expire on 11 October 2020.

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Carpenter & Liu          Expires 11 October 2020                [Page 1]
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Network Scenarios Suitable for a Layer 2 ACP  . . . . . . . .   3
   3.  Requirements for a Layer 2 Technology . . . . . . . . . . . .   3
   4.  Multiple Segments . . . . . . . . . . . . . . . . . . . . . .   5
   5.  Implementation Status [RFC Editor: please remove] . . . . . .   5
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   5
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .   5
     9.2.  Informative References  . . . . . . . . . . . . . . . . .   6
   Appendix A.  Change log [RFC Editor: Please remove] . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

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].  It is essential that such
   communication is strongly secured to avoid malicious interference
   with the Autonomic Network Infrastructure (ANI).

   For this reason, GRASP, and any other autonomic management traffic,
   must run over a secure substrate that is isolated from regular data
   plane traffic.  This substrate is known as the Autonomic Control
   Plane (ACP).  A method for constructing an ACP at the network layer
   is described in [I-D.ietf-anima-autonomic-control-plane].  The
   present document discusses scenarios and requirements for
   constructing an ACP at layer 2.  It is not intended to be a normative
   specification, since implementation details will depend on individual
   layer 2 technologies.

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2.  Network Scenarios Suitable for a Layer 2 ACP

   The ANI design is aimed at managed networks, as explained in the
   reference model [I-D.ietf-anima-reference-model].  For a wide area
   network (such as a large campus, a multi-site enterprise network, or
   a carrier network considered as a whole) it is appropriate to
   construct the ACP using network layer techniques and network layer
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