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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