Distributed processing service control node in the advanced intelligent network
Masanori Hirano, Takashi Suzuki, Tsunemichi Shiozawa, Takashi Honishi, Yasuo Kinouchi · Electronics and Communications in Japan (Part I Communications) · 2000
This article attempts to efficiently cope with the requirement for the high-level intelligence network (IN), and proposes the realization of a service control node by a large-scale distributed configuration composed of a large number of processors. As the basic distributed configuration, the service control function and the service data function are realized by separate processor modules. Then, the integrated configuration with function and load distribution is considered, where the load for those functions is handled by multiple processor modules. As to the realization of the distributed configuration, the load imbalance among the processor modules, as well as the number of dynamic steps in the database processing, are evaluated. In other words, a comprehensive comparison is applied from the viewpoints of cost and performance. The result of the investigation is reflected on the distributed memory database configuration, which is proposed as a configuration suited to the high-level IN. As to unbalance among the processor modules, a method is proposed in which the access rates of the customers are approximated by their order and an analytical evaluation is applied. As to the recovery of the database, the recovery levels are defined according to the data class, and an efficient method of recovery is proposed by combining the acquisition of the checkpoint database with the interval of several minutes and the small-capacity update log data. © 1999 Scripta Technica, Electron Comm Jpn Pt 1, 83(1): 10–23, 2000