Network Working Group S. Herzog
Request for Comments: 3181 PolicyConsulting.Com
Obsoletes: 2751 October 2001
Category: Standards Track
Signaled Preemption Priority Policy Element
Status of this Memo
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 of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2001). All Rights Reserved.
Abstract
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.
Herzog Standards Track