RSVP Extensions for Admission Priority
RFC 6401
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RFC - Proposed Standard
(October 2011; No errata)
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2015-10-14
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IETF
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WG Document
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RFC 6401 (Proposed Standard)
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Magnus Westerlund
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Gorry Fairhurst (gorry@erg.abdn.ac.uk) is the document shepherd
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Internet Engineering Task Force (IETF) F. Le Faucheur
Request for Comments: 6401 J. Polk
Category: Standards Track Cisco
ISSN: 2070-1721 K. Carlberg
G11
October 2011
RSVP Extensions for Admission Priority
Abstract
Some applications require the ability to provide an elevated
probability of session establishment to specific sessions in times of
network congestion. When supported over the Internet Protocol suite,
this may be facilitated through a network-layer admission control
solution that supports prioritized access to resources (e.g.,
bandwidth). These resources may be explicitly set aside for
prioritized sessions, or may be shared with other sessions. This
document specifies extensions to the Resource reSerVation Protocol
(RSVP) that can be used to support such an admission priority
capability at the network layer.
Based on current security concerns, these extensions are intended for
use in a single administrative domain.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6401.
Copyright Notice
Copyright (c) 2011 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
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
Le Faucheur, et al. Standards Track [Page 1]
RFC 6401 RSVP Extensions for Admission Priority October 2011
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
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
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
2. Applicability Statement . . . . . . . . . . . . . . . . . . . 4
3. Requirements Language . . . . . . . . . . . . . . . . . . . . 4
4. Overview of RSVP Extensions and Operations . . . . . . . . . . 4
4.1. Operations of Admission Priority . . . . . . . . . . . . . 6
5. New Policy Elements . . . . . . . . . . . . . . . . . . . . . 7
5.1. Admission Priority Policy Element . . . . . . . . . . . . 8
5.1.1. Admission Priority Merging Rules . . . . . . . . . . . 9
5.2. Application-Level Resource Priority Policy Element . . . . 10
5.2.1. Application-Level Resource Priority Modifying and
Merging Rules . . . . . . . . . . . . . . . . . . . . 11
5.3. Default Handling . . . . . . . . . . . . . . . . . . . . . 12
6. Security Considerations . . . . . . . . . . . . . . . . . . . 12
6.1. Use of RSVP Authentication between RSVP Neighbors . . . . 13
6.2. Use of INTEGRITY object within the POLICY_DATA Object . . 13
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 16
9. References . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9.1. Normative References . . . . . . . . . . . . . . . . . . . 17
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