Narrow Results

A sequential method of analysis of nullor-based active network is presented. The symbolic circuit analysis can be performed easily with the knowledge of properties of circuit elements including nullor elements. The practical circuit examples are given to demonstrate the feasibility of the proposed approach.

The paper describes the concept, architecture, and prototype test results of a packet processor that enables us to implement an application-specific high-speed packet processing system without expert-level programming skills. This processor has a pipelined processing architecture and features coarse-grained instructions that are based on the data formats of the telecommunication packet. Using this processor, target applications can be implemented within a short working period without degrading the processing performance. We implemented a prototype system to evaluate its packet propagation delay and packet forwarding performance. The measured results suggest that the architecture is useful for packet processing on high-speed telecommunication networks.

This paper analyzes the structural controllability of active networks by using the conclusions drawn from the structural controllability of an active network over F(z). This analysis method only requires the drawing of a controlling flow graph that is based on the circuit schematic diagram of active networks. Therefore, it is both straightforward and intuitive to use such an approach. First, second-order active RC networks are analyzed and designed by using this method. Additionally, state feedback circuits are designed based on linear system theory. Finally, the experiment results show that the pole assignment can be realized to meet the requirements of stability and dynamic performance, which were set out in the design of the state feedback.

Active network is a new framework where network nodes not only forward packets, but also perform customized computation on the packet flowing through them. It provides a programmable interface to the user where users dynamically inject services into the intermediate nodes. However, the traditional prototype of network management does not accommodate to the management of active networks, it cannot utilize the distributed computing capabilities that active networks provides. This paper analyses the structure and mechanism of the active network management system, introduces a pattern of active network management, and studies the structure, management mechanism and studies the structure, management mechanism, design outline and each connection of the management system. The paper also studies the network topology discovery and traffic.

Traditional centralized network management model cannot meet the management needs nowadays, and active network management can only be deployed in active network. In this paper, we propose an efficient network management architecture based on active network techniques. The proposed model has the active network management feature, thus agile and traffic saving compared traditional management model. The proposed model can be directly deployed in the real network, thus practical compared with active network management model.