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Versions: 00 01 02 03 04 rfc3521                           Informational
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        RFC 3521

        Title:      Framework for Session Set-up with Media
                    Authorization
        Author(s):  L-N. Hamer, B. Gage, H. Shieh
        Status:     Informational
        Date:       April 2003
        Mailbox:    nhamer@nortelnetworks.com,
                    gageb@nortelnetworks.com, hugh.shieh@attws.com
        Pages:      25
        Characters: 59548
        Updates/Obsoletes/SeeAlso:  None

        I-D Tag:    draft-ietf-rap-session-auth-04.txt

        URL:        ftp://ftp.rfc-editor.org/in-notes/rfc3521.txt


Establishing multimedia streams must take into account requirements
for end-to-end QoS, authorization of network resource usage and
accurate accounting for resources used.  During session set up,
policies may be enforced to ensure that the media streams being
requested lie within the bounds of the service profile established
for the requesting host.  Similarly, when a host requests resources
to provide a certain QoS for a packet flow, policies may be enforced
to ensure that the required resources lie within the bounds of the
resource profile established for the requesting host.

To prevent fraud and to ensure accurate billing, this document
describes various scenarios and mechanisms that provide the linkage
required to verify that the resources being used to provide a
requested QoS are in-line with the media streams requested (and
authorized) for the session.

This document is a product of the Resource Allocation Protocol Working
Group of the IETF.

This memo provides information for the Internet community.  It does
not specify an Internet standard of any kind.  Distribution of this
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