A New Internet-Draft is available from the on-line Internet-Drafts
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Title : Pre-Congestion Notification Using Single Marking for Admission and Termination
Author(s) : A. Charny, et al.
Filename : draft-charny-pcn-single-marking-02.txt
Pages : 82
Date : 2007-7-12
Pre-Congestion Notification described in
[I-D.eardley-pcn-architecture]draft-eardly-pcn-architecture-00 and
earlier in [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 Flow Termination 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.eardley-pcn-architecture], Admission and Flow Termination 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 Flow
Termination, and presents a preliminary analysis of the tradeoffs. A
side-effect of this proposal is that a different marking a nd
metering Admission mechanism than that proposed in
[I-D.eardley-pcn-architecture] may be also feasible, and may result
in a number of benefits. In addition, this draft proposes a
migration path for incremental deployment of this approach as an
intermediate step to the dual-marking approach.
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