Implementation of the TMN to a highly reliable distributed switching node

Ueda, Kiyoshi; Nagai, Akira; Inamori, Hisayoshi; Suzuki, Hiroshi

doi:10.1109/glocom.1993.318058

Proceedings of GLOBECOM '93. IEEE Global Telecommunications Conference

DOI: 10.1109/glocom.1993.318058

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Implementation of the TMN to a highly reliable distributed switching node

Kiyoshi Ueda

Akira Nagai

Hisayoshi Inamori

et al.

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Cited by 9 publications

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“…The BOS, or kemevdriver, layer controls system execution and handles the processor and switching devices so as to conceal their detailed behaviour. The system management layer provides useful functions common to all systems: device management, system initialization, file management, basic communication protocol processing, commandmessage processing, etc., [4]-[ 121. The logical resource layer provides the service layer with virtual resource functions specific to each application; it conceals the system configuration and the specific mechanisms of the switching devices so that the communication service applications can easily handle speech-path or signalling messages.…”

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confidence: 99%

NOSES distributed communication switching software structure based on CORBA

Suzuki

Yamada²

Proceedings of ICC'97 - International Conference on Communications

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Key technologies are presented for establishing the object-oriented communication switching software based on CORBA, which is excellent in software productivity and system scalability. Requirements and conditions for communication switching systems are clarified and mapped to the elements of CORBA. How to deploy objects and how to bind objects so as to minimize processing load are discussed. Mechanisms that guarantee reliability of the system to save calls in service when the system is restarted are also proposed. Tentative estimation of the load of the distributed inter-object communication shows that our software structure does not largely degrade the call processing performance and is promising to establish the basis for next-generation communication switching systems.

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confidence: 99%

NOSES distributed communication switching software structure based on CORBA

Suzuki

Yamada²

Proceedings of ICC'97 - International Conference on Communications

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Autonomous system control for a distributed switching node

Tomura

Suzuki

Kurihara

Proceedings of GLOBECOM '93. IEEE Global Telecommunications Conference

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This paper describes the main techniques that prevent the influence of a fault in an autonomous distributed system from spreading to the whole s y ste m . Se ve ra I inter-su bs y stem c o m m u 11 ic a ti on methods are proposed and evaluated. From the standpoinh of fault processing and processing load, frames should be sent though a data link over an ATM connection and when a fault occurs the link should be switched over without loss of data. A pilot system attains sufficient reliability without an excessive numhcr of dynamic program steps. This autonomous control method will lead to a highly reliable switching node system with a large capacity.

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Hierarchically structured switching software

Koyanagi

Shimizu

Tomita

Proceedings of GLOBECOM '93. IEEE Global Telecommunications Conference

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This paper details a layered hierarchical switching software structure with standardized logical interfaces. We also evaluated a pilot project to devclop a subscriber switching system which implements ISDN call processing as well as POTS based on this concept. The layered interfaces, named S I and S2, as well as the software structure are based on a concurrent object-oriented design approach in order to improve program maintainability and extendibility of building-block switching systems based on distributed processing. Our approach focuses on quick service provisioning, reducing the total cost and separately developing each software layer. Therefore. we created a pilot project to test our assumptions, and we compared the results with those of existing switching systems. We also discuss the applicability of this technology to the development of switching software.

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Implementation of the TMN to a highly reliable distributed switching node

Cited by 9 publications

References 4 publications

NOSES distributed communication switching software structure based on CORBA

NOSES distributed communication switching software structure based on CORBA

Autonomous system control for a distributed switching node

Hierarchically structured switching software

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