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Analysis and design of an intrusion tolerance node for application in traffic shaping

This study analyzes performance enhancement by proposing an intrusion tolerance technique for application to traffic shaping, which is implemented by token buckets or leaky buckets, in order to design a security node that can maintain a service by tolerating network-based denial of service attacks. As a result of the analysis, the transmission ratio of the normal traffic was increased significantly by preventing system down through input traffic adjustment and by reducing the loss ratio of the harmful traffic to a great extent, in order to sustain service availability. Consequently, the outcome of the study is expected to contribute to the design of an efficient security network structure that can resist network-based service denial attacks.