A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Resource Management in Diffserv (RMD) Framework
Author(s) : L. Westberg et al.
Filename : draft-westberg-rmd-framework-03.txt
Pages : 59
Date : 2003-5-28
This draft presents the work on the framework for the Resource
Management in Diffserv (RMD) designed for edge-to-edge resource
reservation in a Differentiated Services (Diffserv) domain. The RMD
extends the Diffserv architecture with new resource reservation
concepts and features. Moreover, this framework enhances the Load
Control protocol described in [WeTu00].
The RMD framework defines two architectural concepts:
- the Per Hop Reservation (PHR)
- the Per Domain Reservation (PDR)
The PHR protocol is used within a Diffserv domain on a per-hop basis
to augment the Diffserv Per Hop Behavior (PHB) with resource
reservation. It is implemented in all nodes in a Diffserv domain. On
the other hand, the PDR protocol manages the resource reservation per
Diffserv domain, relying on the PHR resource reservation status in
all nodes. The PDR is only implemented at the boundary of the domain
(at the edge nodes).
The RMD framework presented in this draft describes the new
reservation concepts and features. Furthermore it describes the:
- relationship between the PHR and PHB
- interaction between the PDR and PHR
- interoperability between the PDR and external resource
reservation schemes
This framework is an open framework in the sense that it provides the
basis for interoperability with other resource reservation schemes
and can be applied in different types of networks as long as they are
Diffserv domains. It aims at extreme simplicity and low cost of
implementation along with good scaling properties.
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