Representation of IP Routing Policies in a Routing Registry (ripe-81++)
RFC 1786

Document Type RFC - Informational (March 1995; No errata)
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Network Working Group                                           T. Bates
Request for Comments: 1786            MCI Telecommunications Corporation
Category: Informational                                        E. Gerich
                                                             Merit, Inc.
                                                            L. Joncheray
                                                             Merit, Inc.
                                                          J-M. Jouanigot
                                                                    CERN
                                                           D. Karrenberg
                                                                RIPE NCC
                                                             M. Terpstra
                                                      Bay Networks, Inc.
                                                                   J. Yu
                                                             Merit, Inc.
                                                              March 1995

                 Representation of IP Routing Policies
                         in a Routing Registry
                              (ripe-81++)

Status of this Memo

   This memo provides information for the Internet community. This memo
   does not specify an Internet standard of any kind. Distribution of
   this memo is unlimited.

Abstract

   This document was originally published as a RIPE document known as
   ripe-181 but is also being published as an Informational RFC to reach
   a larger audience than its original scope. It has received community
   wide interest and acknowledgment throughout the Internet service
   provider community and will be used as the basic starting point for
   future work on Internet Routing Registries and routing policy
   representation.  It can also be referred to as ripe-81++.  This
   document is an update to the original `ripe-81'[1] proposal for
   representing and storing routing polices within the RIPE database. It
   incorporates several extensions proposed by Merit Inc.[2] and gives
   details of a generalized IP routing policy representation to be used
   by all Internet routing registries. It acts as both tutorial and
   provides details of database objects and attributes that use and make
   up a routing registry.

Bates, et al.                                                   [Page 1]
RFC 1786        Representing IP Routing Policies in a RR      March 1995

                           Table of Contents

   1. Introduction ................................................    3

   2. Organization of this Document ...............................    3

   3.  General Representation of Policy Information ...............    5

   4. The Routing Registry and the RIPE Database ..................   11

   5. The Route Object ............................................   16

   6. The Autonomous System Object ................................   26

   7. AS Macros ...................................................   36

   8. The Community Object ........................................   38

   9. Representation of Routing Policies ..........................   41

   10. Future Extensions ..........................................   50

   11. References .................................................   51

   12. Security Considerations ....................................   52

   13. Authors' Addresses .........................................   53

   Appendix A - Syntax for the "aut-num" object ...................   55

   Appendix B - Syntax for the "community" object .................   68

   Appendix C - Syntax for the "as-macro" object ..................   72

   Appendix D - Syntax for the "route" object .....................   76

   Appendix E - List of reserved words ............................   80

   Appendix F - Motivations for RIPE-81++ .........................   81

   Appendix G - Transition strategy ...............................   83

Bates, et al.                                                   [Page 2]
RFC 1786        Representing IP Routing Policies in a RR      March 1995

1.  Introduction

   This document is a much revised version of the RIPE routing registry
   document known as ripe-81 [1].  Since its inception in February, 1993
   and the establishment of the RIPE routing registry, several additions
   and clarifications have come to light which can be better presented
   in a single updated document rather than separate addenda.

   Some of the text remains the same the as the original ripe-81
   document keeping its tutorial style mixed with details of the RIPE
   database objects relating to routing policy representation.  However
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