Congestion control function on an operations support system

Hikaru, Seshake; Kimura, Natsuki; Fujiwara, Tooru

doi:10.1109/apcc.1999.820457

Cited by 1 publication

(4 citation statements)

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“…In the method described in Ref. 4, when an NMS-NE interface specification is added or modified, the whole source program must be recompiled and relinked, as already noted. This is accompanied by large-scale file creation.…”

Section: Evaluation Of System Life Cyclementioning

confidence: 99%

“…In the NMS described in Ref. 4, a hardware fault of a server entails task application interruption for about 5 minutes. In an NMS realized on the basis of the model proposed in this paper, three different hardware redundancy configurations can be selected, namely, n-ACT (selective execution), n-ACT (parallel execution), and n-ACT/m-SBY, making the system highly practical from the viewpoint of hardware.…”

Section: Evaluation Of System Life Cyclementioning

confidence: 99%

“…Furthermore, when the NMS-NE interface specification is to be modified in the method described in Ref. 4, the whole source program must be recompiled and relinked, which requires large-scale file creation. Thus, in order to incorporate the new NMS-NE interface specification into a system during operation, all load modules must be replaced.…”

Section: Problems and Issues In Conventional Nmsmentioning

confidence: 99%

“…In the expansion of fixed communication networks, various NMS have been developed, as in mobile communication networks. There have been research projects aimed at the rapid development of new task procedures at low cost [4,5]. However, there are few cases of the practical use of a method which can deal with the burgeoning demand for mobile communication services.…”

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confidence: 99%

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A practical network management system based on an organization hierarchy mobile agent model

Takahashi

Kon

Akiyama

et al. 2007

Electron Comm Jpn Pt II

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SUMMARYA mobile communication network is composed of a tremendous number of diverse network elements (NEs), which are distributed over a wide geographical area. The system that monitors messages (including warnings) from the NEs and controls the NEs is called the network management system (NMS). Since the NMS is required to handle a large number of messages, it has been implemented with expensive large-scale UNIX servers. Thus, the communication carrier is forced to invest a large amount in the hardware and middleware of the NMS. Another problem is that the carrier must follow the vendor strategy, such as migration to next-generation hardware and OS upgrades. The authors have devised the organization hierarchy agent model (OHAM), in which the external specification of the NMS is represented at the data level as agent behavior, making it possible to add new external specifications quickly and flexibly to the NMS as functions. This paper describes the organization hierarchy mobile agent model (OHMAM), which achieves high processing capacity by upgrading the OHAM agents to mobile agents that move rapidly between small-scale IA servers. A practical commercial system was formed by using the proposed model, and the results of its basic performance evaluation and reliability evaluation are presented in this paper. In the implementation of the proposed model, IA servers, which are inexpensive and readily available, are used as hardware. Open source software (OSS) such as Linux/JavaVM/PostgreSQL is actively used as OS/middleware. Thus, the total cost of ownership (TCO) of the NMS can be greatly reduced.

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Section: Evaluation Of System Life Cyclementioning

confidence: 99%

Section: Evaluation Of System Life Cyclementioning

confidence: 99%

Section: Problems and Issues In Conventional Nmsmentioning

confidence: 99%

mentioning

confidence: 99%

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