Ikuo Yoda

Implementing and deploying MIB in ATM transport network operations systems

TNMSKernel, a network operations system development platform, can be used to produce a Management Information Base (MIB) in conjunction with a database management system. A previous study used a RDBMS (Relational Database Management System) and an OODBMS (Object-Oriented Database Management System), to implement two functionally equivalent MIB functions. However, these MIB implementations are not suitable for network elements such as digital cross-connect systems and subscriber line terminals. Because processing capabilities including processing power, memories and disk I/O speeds for TMN operations interface attached to them are limited. These problems are solved by implementing a new MIB on the main memory technique. The proposed method offers sufficient performance comparing with methods using RDBMS and OODBMS. Furthermore, this paper describes a strategy of selecting the best MIB implementation for each sub-system in an ATM transport network operations system. The effectiveness of the strategy is confirmed through an experiment on a prototype ATM transport network operations system.

Component-oriented network management system development

The integration and seamless interconnection of local and global networks enable a variety of network services. However, they also mean that the swift evolution of network systems and associated computer technologies require rapid and flexible development of network management. In this paper, we propose a component-oriented approach that provides rapid and flexible construction of a network management system.

An ATM transport network operation system based on TMN

The ATM transport network operation system described follows the TMN concept and supports CMIS/P interfaces to connect its subsystems. It contains about a hundred GDMO object classes, which were specially designed to achieve the operation system function. New technologies introduced to ensure effective and rapid system implementation include a directory system, to solve the problem of object instance location, and the use of GDMO object classes to design all system functions. In addition, an original common software platform is used to support the GDMO object intercommunication function. This operation system achieves a distributed object processing environment that supports CMIS/P interfaces. The system has been deployed in Japan and is now being used in multimedia experiments, the initial results of which are encouraging.

Configuration Of A Local Fiber Optical, Network Management System Based On Multiple Manager Systems Environment - Operation Concurrency Control For A Distributed Management System -

The control of a distributed network management system is discussed. Inter-management system communication plays a key role in realizing flow-through operations. We propose the introduction of information resource management systems to manage the information resources of a distributed management system. The proposed system facilitates the addition of new operation systems without modifying existing systems. A package description adopting Guidelines for the Definition of Managed Objects (GDMO) is proposed to realize concurrency control in the information resource management systems. An experimental system is constructed and reasonable performance is achieved.