Practical Network Applications on a Lightweight Active Management Environment

The main focus of active networking research so far has been at the infrastructure level, facing the challenges of designing suitable node operating system structures and the study of different programming models. This has left exploration of the actual utility of active networks to rather simple applications that have yet to exploit the full potential of the programmable network. In this paper we present..

Efficient Packet Monitoring for Network Management

Network monitoring is a vital part of modern network infrastructure management. Existing techniques either present a restricted view of network behavior and state, or do not efficiently scale to higher network speeds and heavier monitoring workloads. Considering these shortcomings we present a novel architecture for programmable packet-level network monitoring. Our approach allows users to customize the monitoring function at the lowest possible level of abstraction to suit a wide range of monitoring needs: we use operating system mechanisms that result in a programming environment providing a high degree of flexibility, retaining fine-grained control over security, and minimizing the associated performance overheads. We present the implementation of this architecture as well as a set of experimental applications