I-D Action: draft-ietf-pcn-3-state-encoding-02.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           : A PCN encoding using 2 DSCPs to provide 3 or more states
	Author(s)       : Toby Moncaster
                          Bob Briscoe
                          Michael Menth
	Filename        : draft-ietf-pcn-3-state-encoding-02.txt
	Pages           : 15
	Date            : 2012-03-12

   Pre-congestion notification (PCN) is a mechanism designed to protect
   the Quality of Service of inelastic flows within a controlled domain.
   It does this by marking packets when traffic load on a link is
   approaching or has exceeded a threshold below the physical link rate.
   This experimental encoding scheme specifies how three encoding states
   can be carried in the IP header using a combination of two DSCPs and
   the ECN bits.  The Basic scheme only allows for three encoding
   states.  The Full scheme provides 6 states, enough for limited end-
   to-end support for ECN as well.


A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-pcn-3-state-encoding-02.txt

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

This Internet-Draft can be retrieved at:
ftp://ftp.ietf.org/internet-drafts/draft-ietf-pcn-3-state-encoding-02.txt

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