Network QoS Expectations Extensions for MUD
draft-lear-opsawg-mud-bw-profile-00

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Network Working Group                                            E. Lear
Internet-Draft                                                  J. Henry
Intended status: Experimental                              Cisco Systems
Expires: April 23, 2019                                 October 20, 2018

              Network QoS Expectations Extensions for MUD
                  draft-lear-opsawg-mud-bw-profile-00

Abstract

   Manufacturer Usage Descriptions (MUD) are a means by which devices
   can establish expectations about how they are intended to behave, and
   how the network should treat them.  Earlier work focused on access
   control.  This draft specifies a means by which manufacturers can
   express to deployments what form of bandwidth profile devices are
   expected to have with respect to specific services.

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
   Task Force (IETF).  Note that other groups may also distribute
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 23, 2019.

Copyright Notice

   Copyright (c) 2018 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of

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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Envisioned Uses . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Limitations . . . . . . . . . . . . . . . . . . . . . . .   3
     1.3.  What devices would use this extension?  . . . . . . . . .   3
   2.  The ietf-mud-bw-profile model extension . . . . . . . . . . .   4
     2.1.  The mud-qos YANG model  . . . . . . . . . . . . . . . . .   4
   3.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .   7
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
     4.1.  Manufacturer Attempts to Exhaust Available Bandwidth  . .   7
     4.2.  Device lies about what it is to get more bandwidth  . . .   8
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   8
   Appendix A.  Changes from Earlier Versions  . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   Devices connecting to networks will often exhibit certain nominal
   behaviors that can be described.  In addition, sometimes device
   require particular network behaviors such as appropriate quality-of-
   service treatment.  Manufacturer Usage Descriptions
   [I-D.ietf-opsawg-mud] discuss how to characterize access control
   requirements, for instance.  As just mentioned, access control
   requirements are not the only requirements device manufacturers may
   wish to specify.  This memo defines an extension to the MUD YANG
   model by which manufacturers can characterize the traffic exchanged
   with a Thing, and specify how much bandwidth is required by a device
   or may be expected of a device over some period of time for each
   given service it uses.

   Network deployments may use this information in two ways:

   o  Provisioning of bandwidth based on device requirements;

   o  Facilitating proper traffic characterization and marking by the
      network infrastructure

   o  Policing of devices to not permit them to exceed design
      requirements.  In particular, a device that is transmitting a DSCP
      value that exceeds the expected value, or that manifests unusual
      transmission patterns, should be viewed with great suspicion.

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