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RE: [Ieprep] Re: WG Review: Recharter of Internet EmergencyPreparedness (ieprep)
- To: "Janet P Gunn" <jgunn6 at csc.com>, "Brian E Carpenter" <brc at zurich.ibm.com>
- Subject: RE: [Ieprep] Re: WG Review: Recharter of Internet EmergencyPreparedness (ieprep)
- From: "Dolly, Martin C, ALABS" <mdolly at att.com>
- Date: Thu, 16 Nov 2006 07:29:59 -0600
- Cc: "Robert G. Cole" <robert.cole at jhuapl.edu>, Pekka Savola <pekkas at netcore.fi>, ieprep at ietf.org, Scott Bradner <sob at harvard.edu>, Fred Baker <fred at cisco.com>, Sam Hartman <hartmans-ietf at mit.edu>, ietf at ietf.org
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- Thread-topic: [Ieprep] Re: WG Review: Recharter of Internet EmergencyPreparedness (ieprep)
Janet,
I agree that the items you listed below are best analyzed/discussed in
the IETF, for as long as real-life architecture deployment scenarios are
taken into account.
Martin
Janet Gunn wrote on 11/16:
Some of the possibilities in that continuum include (in no particular
order):
- Allowing extra sessions in, and permitting degradation in QoS across
all
sessions.
- Allowing a higher packet drop rate across all the "lower priority"
calls.
- Negotiating a lower bandwidth allocation, possibly accompanied by a
changing to a lower rate bandwidth codec when a higher priority session
needs to "preempt".
- Negotiating (or arbitrarily imposing) a different PHB (e.g. AF or BE
rather than EF) for lower priority sessions when a higher priority
session
needs to "preempt".
- Different Capacity Admission Control mechanisms for different priority
sessions.
The analysis/understanding of these (and other) alternatives is much
better
done in the IETF than in the historically-circuit-swiched SDOs.
Janet
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