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I-D ACTION:draft-ietf-policy-qos-device-info-model-08.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Policy Framework Working Group of the IETF.

	Title		: Information Model for Describing Network Device QoS 
                          Datapath Mechanisms
	Author(s)	: B. Moore, D. Durham, J. Strassner,
                          A. Westerinen, W. Weiss
	Filename	: draft-ietf-policy-qos-device-info-model-08.txt
	Pages		: 91
	Date		: 31-May-02
	
The purpose of this draft is to define an information model to
describe the quality of service (QoS) mechanisms inherent in
different network devices, including hosts.  Broadly speaking,
these mechanisms describe the attributes common to selecting and
conditioning traffic through the forwarding path (datapath) of a
network device.  This selection and conditioning of traffic in
the datapath spans both major QoS architectures: Differentiated
Services (see [R2475]) and Integrated Services (see [R1633]).
This draft is intended to be used with the QoS Policy Information
Model [QPIM] to model how policies can be defined to manage and
configure the QoS mechanisms (i.e., the classification, marking,
metering, dropping, queuing, and scheduling functionality) of
devices.  Together, these two drafts describe how to write QoS
policy rules to configure and manage the QoS mechanisms present
in the datapaths of devices.
This draft, as well as [QPIM], are information models.  That is,
they represent information independent of a binding to a specific
type of repository.  A separate draft could be written to provide
a mapping of the data contained in this document to a form
suitable for implementation in a directory that uses (L)DAP as
its access protocol.  Similarly, a draft could be written to
provide a mapping of the data in [QPIM] to a directory.
Together, these four drafts (information models and directory
schema mappings) would then describe how to write QoS policy
rules that can be used to store information in directories to
configure device QoS mechanisms.

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