Converging the Evolution of Router Architectures and IP Networks

Although IP is widely recognized as the platform for next-generation converged networks, unfortunately, it is heavily burdened by its heritage of almost 30 years. Nowadays, network operators must devote significant resources to perform essential tasks, such as traffic engineering, policy enforcement...

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Bibliographic Details
Published in:IEEE network 2007-07, Vol.21 (4), p.6
Main Authors: Császár, András, Enyedi, Gábor, Rétvári, Gábor, Hidell, Markus, Sjödin, Peter
Format: Article
Language:English
Subjects:
Computer architecture
Computer networks
Internet Protocol
Systems development
Online Access:Get full text
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Summary:Although IP is widely recognized as the platform for next-generation converged networks, unfortunately, it is heavily burdened by its heritage of almost 30 years. Nowadays, network operators must devote significant resources to perform essential tasks, such as traffic engineering, policy enforcement, and security. In this article, we argue that one of the principal reasons for this is the way control and forwarding planes are interspersed in IP networks today. We review the architectural developments that led to the current situation, and we reason that centralization of network control functionality can constitute a solution to the pressing problems of the contemporary Internet. [PUBLICATION ABSTRACT]
ISSN:0890-8044
1558-156X