Yan Danfeng

Fuzzy evaluation of SLA-oriented QoSM (the quality of service management) in NGN

The quality of service management-QoSM is a new conception from NGN service layer. To evaluate QoSM efficiently, it is necessary and elementary to define an evaluation metrics and find an evaluation method. First, the evaluation metrics for QoSM based on SLA service management contents is proposed. Then a fuzzy evaluating method to evaluate QoSM based on SLA-oriented service management metrics is designed. At last, an example of evaluating is described to illuminate that the fuzzy evaluating method for the QoSM of NGN is useful and correct.

Research on Packet Tagging Using the Attributes of Data Stream

For the important role of packets in the network management and security applications, many researches have been applied to network packet. How to record and store the packets in an efficient structure is a problem in this field. This paper focuses on the study of network packet tagging technique. Based on existing research, this paper presents a tagging method using the attributes of data stream. This method takes data stream as a unit to record the data of raw packets and make a data structure for packets storage. Through experiment, it’s showing that this method makes effective management and clear description for the packets, supports network applications basing on network packets. This method has low storage cost, efficient query process and is highly scalable over existing methods.