RFC 2750 (rfc2750) - Page 2 of 13
RSVP Extensions for Policy Control
Alternative Format: Original Text Document
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