[PCN] I-D Action:draft-ietf-pcn-marking-behaviour-05.txt

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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Congestion and Pre-Congestion Notification Working Group of the IETF.


	Title           : Metering and marking behaviour of PCN-nodes
	Author(s)       : P. Eardley
	Filename        : draft-ietf-pcn-marking-behaviour-05.txt
	Pages           : 25
	Date            : 2009-08-03

The objective of Pre-Congestion Notification (PCN) is to protect the
quality of service (QoS) of inelastic flows within a Diffserv domain,
in a simple, scalable, and robust fashion.  This document defines the
two metering and marking behaviours of PCN-nodes.  Threshold-metering
and -marking marks all PCN-packets if the rate of PCN-traffic is
greater than a configured rate ("PCN-threshold-rate").  Excess-
traffic-metering and -marking marks a proportion of PCN-packets, such
that the amount marked equals the rate of PCN-traffic in excess of a
configured rate ("PCN-excess-rate").  The level of marking allows
PCN-boundary-nodes to make decisions about whether to admit or
terminate PCN-flows.

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