Authors | P. Eardley, N. Others and B. Briscoe |
Editors | P. Eardley |
Title | Metering and Marking Behaviour of PCN-Nodes |
Afilliation | Communication Systems, Communication Systems |
Status | Published |
Publication Type | Technical reports |
Year of Publication | 2009 |
Number | 5670 |
Date Published | 11/2009 |
Publisher | RFC Editor |
Other Numbers | ISSN 2070-1721 |
Keywords | Admission Control, Algorithm, AQM, congestion control, Data Communication, Differentiated Services, Internet, networks, Notification, Pre-Emption, Protocol, QoS, Quality of Service, Signalling, Termination |
Abstract | 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 aconfigured rate ("PCN-excess-rate"). The level of marking allows PCN-boundary-nodes to make decisions about whether to admit or terminate PCN-flows. |
URL | http://tools.ietf.org/html/rfc5670 |
Citation Key | Eardley09:PCN-mark |