@TECHREPORT{Moncaster08b:PCN-enc-base,
  author = {Toby Moncaster and Bob Briscoe and Michael Menth},
  title = {{Baseline Encoding and Transport of Pre-Congestion Information}{}},
  institution = ietf,
  year = {2009},
  type = rfc,
  number = {5696},
  month = nov,
  abstract = {The objective of the Pre-Congestion Notification (PCN) architecture
	is to protect the quality of service (QoS) of inelastic flows within
	a Diffserv domain. It achieves this by marking packets belonging
	to PCN-flows when the rate of traffic exceeds certain configured
	thresholds on links in the domain. These marks can then be evaluated
	to determine how close the domain is to being congested. This document
	specifies how such marks are encoded into the IP header by redefining
	the Explicit Congestion Notification (ECN) codepoints within such
	domains. The baseline encoding described here provides only two PCN
	encoding states: Not-marked and PCN-marked. Future extensions to
	this encoding may be needed in order to provide more than one level
	of marking severity.},
  abstract-url = {\url{http://www.bobbriscoe.net/pubs.html#PCN-enc-base}},
  affiliation = {1-2: BT; 3: Uni Wuertzburg},
  keywords = {Data Communication, Networks, Internet, Quality of Service, QoS,
	Congestion Control, Differentiated Services, Admission Control, Protocols,
	Congestion Notification, Marking, Encoding},
  owner = {RJB},
  timestamp = {2008.05.16},
  url = {\href{http://tools.ietf.org/html/rfc5696}{rfc5696} \url{http://www.bobbriscoe.net/projects/ipe2eqos/pcn/rfc5696.txt}}
}