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Title : Pre-Congestion Notification Using Single Marking for Admission and Pre-emption
Author(s) : A. Charny, et al.
Filename : draft-charny-pcn-single-marking-01.txt
Pages : 30
Date : 2007-3-6
Pre-Congestion Notification [I-D.briscoe-tsvwg-cl-architecture]
approach proposes the use of an Admission Control mechanism to limit
the amount of real-time PCN traffic to a configured level during the
normal operating conditions, and the use of a Pre-emption mechanism
to tear-down some of the flows to bring the PCN traffic level down to
a desirable amount during unexpected events such as network failures,
with the goal of maintaining the QoS assurances to the remaining
flows. In [I-D.briscoe-tsvwg-cl-architecture], Admission and Pre-
emption use two different markings and two different metering
mechanisms in the internal nodes of the PCN region. This draft
proposes a mechanism using a single marking and metering for both
Admission and Pre-emption, and presents a preliminary analysis of the
tradeoffs. A side-effect of this proposal that a different marking
and metering Admission mechanism than that proposed
in[I-D.briscoe-tsvwg-cl-architecture] may be also feasible.
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