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Versions: 00 01 rfc3181                                  Standards Track
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        RFC 3181

        Title:      Signaled Preemption Priority Policy Element
        Author(s):  S. Herzog
        Status:     Standards Track
        Date:       October 2001
        Mailbox:    herzog@policyconsulting.com
        Pages:      12
        Characters: 21990
        Obsoletes:  RFC 2751

        I-D Tag:    draft-ietf-rap-signaled-priority-v2-01.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3181.txt


This document describes a preemption priority policy element for use
by signaled policy based admission protocols (such as the Resource
ReSerVation Protocol (RSVP) and Common Open Policy Service (COPS).

Preemption priority defines a relative importance (rank) within the
set of flows competing to be admitted into the network. Rather than
admitting flows by order of arrival (First Come First Admitted)
network nodes may consider priorities to preempt some previously
admitted low priority flows in order to make room for a newer,
high-priority flow.

This memo corrects an RSVP POLICY_DATA P-Type codepoint assignment
error in RFC 2751.

This document is a product of the Resource Allocation Protocol Working
Group of the IETF.

This is now a Proposed Standard Protocol.

This document specifies an Internet standards track protocol for
the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the
"Internet Official Protocol Standards" (STD 1) for the
standardization state and status of this protocol.  Distribution
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