RFC 2750 (rfc2750) - Page 2 of 13

RSVP Extensions for Policy Control

RFC 2750           RSVP Extensions for Policy Control       January 2000


Table of Contents

   1 Introduction.......................................................2
   2 A Simple Scenario..................................................3
   3 Policy Data Objects................................................3
   3.1  Base Format.....................................................4
   3.2  Options.........................................................4
   3.3  Policy Elements.................................................7
   3.4  Purging Policy State............................................7
   4 Processing Rules...................................................8
   4.1  Basic Signaling.................................................8
   4.2  Default Handling for PIN nodes..................................8
   4.3  Error Signaling.................................................9
   5 IANA Considerations................................................9
   6 Security Considerations............................................9
   7 References........................................................10
   8 Acknowledgments...................................................10
   9 Author Information................................................10
   Appendix A: Policy Error Codes......................................11
   Appendix B: INTEGRITY computation for POLICY_DATA objects...........12
   Full Copyright Statement ...........................................13

1  Introduction

   RSVP, by definition, discriminates between users, by providing some
   users with better service at the expense of others. Therefore, it is
   reasonable to expect that RSVP be accompanied by mechanisms for
   controlling and enforcing access and usage policies. Version 1 of the
   RSVP Functional Specifications [RSVP] left a placeholder for policy
   support in the form of POLICY_DATA object.

   The current RSVP Functional Specification describes the interface to
   admission (traffic) control that is based "only" on resource
   availability. In this document we describe a set of extensions to
   RSVP for supporting policy based admission control as well. The scope
   of this document is limited to these extensions and does not advocate
   specific architectures for policy based controls.

   For the purpose of this document we do not differentiate between
   Policy Decision Point (PDP) and Local Decision Point (LDPs) as
   described in [RAP]. The term PDP should be assumed to include LDP as
   well.









Herzog                      Standards Track