A new Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Congestion Exposure Working Group of the IETF.
Title : Congestion Exposure (ConEx) Concepts and Abstract Mechanism
Author(s) : M. Mathis, et al
Filename : draft-ietf-conex-abstract-mech-01.txt
Pages : 18
Date : 2011-03-14
This document describes an abstract mechanism by which senders inform
the network about the congestion encountered by packets earlier in
the same flow. Today, the network may signal congestion to the
receiver by ECN markings or by dropping packets, and the receiver
passes this information back to the sender in transport-layer
feedback. The mechanism to be developed by the ConEx WG will enable
the sender to also relay this congestion information back into the
network in-band at the IP layer, such that the total level of
congestion is visible to all IP devices along the path, from where it
could, for example, provide input to traffic management.
A URL for this Internet-Draft is:
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