Diameter Policy Groups and Sets

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Last updated 2018-06-18
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Diameter Maintenance and Extensions                             L. Bertz
Internet-Draft                                                  M. Bales
Intended status: Standards Track                                  Sprint
Expires: December 20, 2018                                 June 18, 2018

                    Diameter Policy Groups and Sets


   This document defines optional Diameter attributes for efficient
   policy provisioning.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on December 20, 2018.

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   10, 2008.  The person(s) controlling the copyright in some of this
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1.  Introduction

   As Users connect to a network, policy applications often apply common
   policies to them.  In some cases policies are grouped and applied
   through the use of AVPs, e.g. 3GPP Base Name.  Other options include
   sending identifiers, usually a list of integers, associated with
   rules to apply a group to a single user.  This compacts the over the
   wire representation but requires strong coordination between policy
   based Clients and Servers.

   Application of common policy if further limited when the filters
   overlap.  This requires partitioning policies into non-overlapping
   namespaces, e.g. tables in a Software Defined Networking (SDN)
   switch.  To reduce the need to partition sets of policies some SDN
   technologies, e.g.  OpenFlow, rely on metadata that is applied as
   part of the filter or metadata that is specific to the packet, e.g.
   OpenFlow Registers.

   This document defines grouping mechanisms to allow users or groups of
   users to share policies or groups of policies.  The mechanism also
   extends filters to include a metadata matching field that permits
   filters that overlap at the protocol level to coexist in the same
   policy enforcement space.

2.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   document are to be interpreted as described in [RFC2119].

3.  Terminology

   Authorized Users  An Entity that has been authorized to use a service
      via a Diameter Application.

   Base Name  An organizational structure used to define a domain for
      multiple Policy Groups or Membership Domains.

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   Determination Type  The matching policy applied, e.g.  ANDMASK, AND,
      etc, for Membership Determination.

   Policy Entity  A type that may be assigned to a Policy Group or
      Membership.  This includes but is not limited to Filters [RFC7155]
      or Filter-Rules [RFC5777].

   Membership Determination  The process by which Policy Entities are
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