[PCN] RFC 6663 on Requirements for Signaling of Pre-Congestion Information in a Diffserv Domain

rfc-editor@rfc-editor.org Thu, 19 July 2012 00:13 UTC

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Subject: [PCN] RFC 6663 on Requirements for Signaling of Pre-Congestion Information in a Diffserv Domain
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A new Request for Comments is now available in online RFC libraries.

        
        RFC 6663

        Title:      Requirements for Signaling of Pre-Congestion 
                    Information in a Diffserv Domain 
        Author:     G. Karagiannis, T. Taylor,
                    K. Chan, M. Menth,
                    P. Eardley
        Status:     Informational
        Stream:     IETF
        Date:       July 2012
        Mailbox:    g.karagiannis@utwente.nl, 
                    tom.taylor.stds@gmail.com, 
                    khchan.work@gmail.com,
                    menth@uni-tuebingen.de, 
                    philip.eardley@bt.com
        Pages:      7
        Characters: 15316
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-pcn-signaling-requirements-08.txt

        URL:        http://www.rfc-editor.org/rfc/rfc6663.txt

Pre-Congestion Notification (PCN) is a means for protecting quality of
service for inelastic traffic admitted to a Diffserv domain.  The
overall PCN architecture is described in RFC 5559.  This memo
describes the requirements for the signaling applied within the PCN-domain:
(1) PCN-feedback-information is carried from the PCN-egress-node to
the Decision Point; (2) the Decision Point may ask the PCN-ingress-node to
measure, and report back, the rate of sent PCN-traffic between that
PCN-ingress-node and PCN-egress-node.  The Decision Point may be either
collocated with the PCN-ingress-node or a centralized node (in the first 
case, (2) is not required).  The signaling requirements pertain in 
particular to two edge behaviors, Controlled Load (CL) and Single Marking 
(SM).  This document is not an Internet Standards Track specification; it 
is published for informational purposes.

This document is a product of the Congestion and Pre-Congestion Notification Working Group of the IETF.


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