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This draft is a work item of the Transport Area Working Group Working Group of the IETF.
Title : DSCPs for Capacity-Admitted Traffic
Author(s) : F. Baker, et al.
Filename : draft-ietf-tsvwg-admitted-realtime-dscp-01.txt
Pages : 19
Date : 2007-3-28
This document requests two DSCPs from the IANA for real-time traffic
classes similar to voice and video, conforming to the Expedited
Forwarding Per Hop Behavior, and admitted using a CAC procedure
involving authentication, authorization, and capacity admission, as
compared to a class of real-time traffic conforming to the Expedited
Forwarding Per Hop Behavior but not subject to capacity admission or
subject to very coarse capacity admission.
One of the reasons behind this is the need for classes of traffic
that are handled under special policies, such as the non-preemptive
Emergency Telecommunication Service, the US DoD's Assured Service
(which is similar to MLPP), or e-911. These do not need separate
DSCPs or separate PHBs that separate them from each other, but they
need a traffic class that separates them from the traffic not subject
to admission control, from which they can deterministically obtain
their service requirements, including SLA matters.
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