Applications Of The Active Network Technology On The Edge Of 3TNet

The main operation of the future IP networks will be mutual streaming media, so how to support the great deal of high speed parallel streaming media, and mutual multi-rate video operation will be the hot pursuit of the next generation networks. As the main operation of the 3TNet, streaming media operation is characterized with transmitting data flows at a steady, real-time and continuous rate.For the purpose of deploying the streaming media with QoS supported in the 3TNet, this dissertation focuses on the research of the applications of the active network technology in the edge of the 3TNet. 3TNet has decided to adopt using the circuit switching technology as one of its core network switching technologies, for the advantages of the circuit switching and optical transmitting technology. The main work of this paper focuses on the study of how to support the great deal of high speed parallel streaming media in the edge of the 3TNet, including the study of the active network architecture in the edge of the 3TNet, the streaming media congestion control algorithm in the active network, and the active multi-rate video media multicast algorithm.Because the main work of the edge of the 3TNet is the data transmitting and processing, (data buffering, and data transmitting with stable speed, congestion control, and speed transferring); controlling the accessing and user ID checking, etc., the edge of the 3TNet must be very agile. At the same tome, the active network has an outstanding agility, and the network and its user foreknows the characters of the future data flow in the network. So with the active network at the edge of the network, 3TNet can achieve the up limit of the QoS in the packet-switching networks. After analyzing of the M/GI/1 model with restrictions, the response time of the active network is the least one of the currently used networks at 90%.For the outstanding agility in the active networks (general users can do personal configurations to networks), in the process of designing and implement, especially in the application process in the edge of the 3TNet, there are two problems: security and non-smoothly upgrade. So it is very difficult to develop active network in the traditional network in multi-node and several-layerconditions. In order to use the active network in the edge of the 3TNet, we develop a big capable Active accessing Convergence Router system with a single core node and multi remote models (ACR), and also studied its security.On the basis of analyzing of the phenomena and cause of congestion, this dissertation also brings forward a kind of congestions control mechanism, which is applied in the edge networks of the 3TNet. It is aimed at operation of streaming media, based on MCDA (the Maximum amount of information Cell Discarding Arithmetic), and it adopts gradual feedback. This mechanism performs well in the congestion control of legal data and isolation of illegally attacking data.As a typical arithmetic of multi-rate video broadcast, RLM implements congestion control by joining in or drop out of certain broadcast groups dynamically. Whereas, experiments show that there are some shortages in stability, efficiency, justice and requests for routing data in this arithmetic. Introducing the mechanism of active agent feedback and correlated decision-making , this dissertation puts forward a kind of multi-rate streaming media broadcast arithmetic based on enhanced active agent—AELM. AELM solves major problems that lie in RLM, putting data flows together into the same broadcast group, and giving every type a different priority. At the same time, through active agent engine AAg, AELM arithmetic introduces feedback mechanism, inheriting the virtues of RLM, which can enhance the rate of resource utilization by decreasing useless data flows whose priority is low. And, when judging whether to doff, AELM arithmetic introduces the historical correlated factor, which improvements the stability. Experiments show that, AELM does better in the aspects of reaction time and stability, and it reduces the load of routing table.Finally, based on former research, using multi-Power PC kernel of FPGA, this dissertation brings forward a high performance active networks engine. With this engine, we can smoothly upgrade the typical routers to active networks node (active router) .Also, with this engine, general active routers can improve their actively disposal ability.