We present a new architecture (virtual services) and accompanying implementation for dynamically adapting and reconfiguring the behavior of network services. Virtual services are a compositional middleware system that transparently interposes itself between a service and a client, overlaying new functionality with configurations of modules organized into processing chains.
The rapid growth of Internet in size and complexity, and frequent emergence of new network applications have made it necessary to develop techniques that can monitor and control the traffic. Efficient and accurate recognition of traffic is the key to the management
The ZigBee specification is a standard for low-power consuming wireless devices. The ZigBee protocol stack has a layered structure containing four distinct layers of which the two lowest layers are defined by the IEEE 802.15.4 standard. Building on this base the ZigBee