14.1. Introduction

A common paradigm for a network service architecture is to provide a number of different services or applications in which all of them share resources; the routing framework provides the best path to all services. A simple twist to this basic notion is if we were to architect in a way to virtualize the network so that different services are clustered into different virtual, adaptive partitions to provide different levels of services. In considering this notion, it is important to note that a service offering can span the entire spectrum from complete sharing to physically dedicated partitioning. Furthermore, even without a shared environment, prioritization is also possible, for example, in packet scheduling for different service ...

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