RMD-QOSM: The NSIS Quality-of-Service Model for Resource Management in Diffserv
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From: The IESG <firstname.lastname@example.org> To: IETF-Announce <email@example.com> Cc: Internet Architecture Board <firstname.lastname@example.org>, RFC Editor <email@example.com>, nsis mailing list <firstname.lastname@example.org>, nsis chair <email@example.com> Subject: Document Action: 'RMD-QOSM - The NSIS Resource Management in Diffserv QOS Model' to Experimental RFC The IESG has approved the following document: - 'RMD-QOSM - The NSIS Resource Management in Diffserv QOS Model ' <draft-ietf-nsis-rmd-20.txt> as an Experimental RFC This document is the product of the Next Steps in Signaling Working Group. The IESG contact person is Lars Eggert. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-nsis-rmd-20.txt
Technical Summary This document describes an NSIS QoS Model for networks that use the Resource Management in Diffserv (RMD) concept. RMD is a technique for adding admission control and pre-emption function to Differentiated Services (Diffserv) networks. The RMD QoS Model allows devices external to the RMD network to signal reservation requests to edge nodes in the RMD network. The RMD Ingress edge nodes classify the incoming flows into traffic classes and signals resource requests for the corresponding traffic class along the data path to the Egress edge nodes for each flow. Egress nodes reconstitute the original requests and continue forwarding them along the data path towards the final destination. In addition, RMD defines notification functions to indicate overload situations within the domain to the edge nodes. Working Group Summary The document is a product of the NSIS working group. Various WG members have reviewed the document and provided feedback, which the authors have gladly incorporated into the document. Document Quality The presented QoS model combines the class-based approach to QoS defined by the DiffServ model and explicit signaling mechanisms defined by the QoS NSLP. The solution seeks to make best use of both types of approaches for use in QoS management inside a domain; the solution is not meant as a fully end-to-end scheme. The RMD concept has been initially presented several years back in a number of scientific papers, this document presents how the scheme can be implemented within the NSIS framework. No information is available about the number and quality of implementations of the technology inside the NSIS architecture. Personnel The document shepherd is Jukka Manner (firstname.lastname@example.org). Lars Eggert (email@example.com) reviewed this document for the IESG.