A Taxonomy on Private Use Fields in Protocols
draft-lonvick-private-tax-11

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Network Working Group                                         C. Lonvick
Internet-Draft                                           October 8, 2016
Intended status: Informational
Expires: April 11, 2017

             A Taxonomy on Private Use Fields in Protocols
                    draft-lonvick-private-tax-11.txt

Abstract

   This document attempts to provide some clarification for the way that
   private use fields have been used in protocols developed in the IETF.
   It is strictly a taxonomy of what has been published and offers a
   minimal amount of advice about how to design or use private use
   options.

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 11, 2017.

Copyright Notice

   Copyright (c) 2016 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
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   described in the Simplified BSD License.

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   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Origins of the Private Use Namespace . . . . . . . . . . . . .  4
   3.  Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . .  5
   4.  Characteristics of Useful Private Use Options  . . . . . . . .  7
     4.1.  Source of Authority  . . . . . . . . . . . . . . . . . . .  7
     4.2.  Focus of the Namespace . . . . . . . . . . . . . . . . . .  8
   5.  Examples of Successful Private Use Options . . . . . . . . . .  8
     5.1.  Private Enterprise Number  . . . . . . . . . . . . . . . .  9
       5.1.1.  SNMP . . . . . . . . . . . . . . . . . . . . . . . . .  9
       5.1.2.  RADIUS . . . . . . . . . . . . . . . . . . . . . . . . 10
       5.1.3.  Mobile IP  . . . . . . . . . . . . . . . . . . . . . . 11
       5.1.4.  DHCP . . . . . . . . . . . . . . . . . . . . . . . . . 12
       5.1.5.  Syslog . . . . . . . . . . . . . . . . . . . . . . . . 13
     5.2.  Domain Name Strings  . . . . . . . . . . . . . . . . . . . 14
       5.2.1.  Secure Shell . . . . . . . . . . . . . . . . . . . . . 14
     5.3.  URN-based Namespaces . . . . . . . . . . . . . . . . . . . 14
       5.3.1.  YANG and NETCONF . . . . . . . . . . . . . . . . . . . 15
   6.  Issues to Consider . . . . . . . . . . . . . . . . . . . . . . 17
     6.1.  Value of the Option  . . . . . . . . . . . . . . . . . . . 18
     6.2.  Guidance on Incomplete Understanding . . . . . . . . . . . 19
   7.  Authors Notes  . . . . . . . . . . . . . . . . . . . . . . . . 19
   8.  Security Considerations  . . . . . . . . . . . . . . . . . . . 19
   9.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 19
   10. Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 19
   11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 20
   Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 23

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