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 : Overview of Pre-Congestion Notification Encoding
Author(s) : Georgios Karagiannis
Kwok Ho Chan
Toby Moncaster
Michael Menth
Philip Eardley
Bob Briscoe
Filename : draft-ietf-pcn-encoding-comparison-09.txt
Pages : 19
Date : 2012-03-08
The objective of Pre-Congestion Notification (PCN) is to protect the
quality of service (QoS) of inelastic flows within a Diffserv domain.
On every link in the PCN domain, the overall rate of the PCN-traffic
is metered, and PCN-packets are appropriately marked when certain
configured rates are exceeded. Egress nodes provide decision points
with information about the PCN-marks of PCN-packets which allows them
to take decisions about whether to admit or block a new flow request,
and to terminate some already admitted flows during serious pre-
congestion.
The PCN Working Group explored a number of approaches for encoding
this pre-congestion information into the IP header. This document
provides details of all those approaches along with an explanation of
the constraints that had to be met by any solution.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-pcn-encoding-comparison-09.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-encoding-comparison-09.txt
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