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[Author] Hiroshi TOHJO(4hit)

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  • A Construction Manager System over an ATM Transport Network Operation System Verification of the Basic Technique of Flowthrough Operation in Configuration Management

    Hiroshi TOHJO  Tetsuya YAMAMURA  

     
    PAPER-System Implementation

      Vol:
    E80-B No:6
      Page(s):
    833-840

    We have studied the flowthrough operation to simplify operation processes and to promote the efficiency of operation flows. In this paper, we introduce the Construction Manager System (CMS) that cooperates with the ATM Transport Network Operation System (ATMOS). This system directs the construction processes using the construction tickets newly defined by the GDMO (Guidelines for the Definitions of Managed Objects); these tickets and action scenarios are prepared inside the SMS (Scenario Management System). We confirm that CMS can perform construction management using the construction tickets instead of the traditional off-line communications such as the telephone and the facsimile. Furthermore, because CMS cooperates with ATMOS, it is able to manage actual network elements (NEs) and conduct board costruction processes by using construction tickets. Moreover, CMS can confirm that the construction processes of the actual NEs have actually been executed through the Q3 interface. As a result, we verify the basic technique for flowthrough operation for configuration management.

  • An Implementation of the TMN-Based Integrated Management Display System

    Hiroshi TOHJO  Tetsuya YAMAMURA  Tetsuaki GOTO  

     
    PAPER-System architecture

      Vol:
    E80-B No:10
      Page(s):
    1421-1428

    In order to efficiently conduct the complex operations of network OpSs (Operation Systems), we introduce the TMN-based Integrated Management Display System (IMD). IMD is able to control the display of windows monitoring individual operations on multiple screens such as project monitors. In this paper, we describe an implementation of the IMD and experimental results. This implementation consists of the Multi-Screen Control System (MSS), Multi-Screen Agent System (MSA) and Multi-Screen Manager System (MSM). MSA controls MSS directly via proprietary protocols. MSM manages MSA via the TMN Interface. MSA is modeled using the GDMO (Guidelines for the Definition of Managed Objects). Moreover, in order to realize cooperation with other OpSs, MSM is based on TMN. We confirm that MSM interworks with ATMOS (ATM Transport Network Operation System) and develop an alarm surveillance system for ATMOS using IMD at in an OpS-Room. Experiments verify that MSA can be controlled by MSM following the alarms emitted from the real network equipment of the ATM Transport Network. As a result, the operators can comprehend the operations information more quickly than is possible with the conventional system. By using the TMN-based Integrated Management Display System (IMD), operations such as alarm surveillance can be performed more efficiently.

  • FOREWORD Open Access

    Hiroshi TOHJO  

     
    FOREWORD

      Vol:
    E99-B No:9
      Page(s):
    1919-1919
  • CMIP-Based OpS-WS Interface Supporting Graphical User Interface

    Hiroshi TOHJO  Ikuo YODA  Tatsuyuki KIMURA  Nobuo FUJII  

     
    PAPER

      Vol:
    E78-B No:1
      Page(s):
    74-81

    This paper proposes a method for constructing an interface between an operations system and a workstation (OpS-WS interface) in a telecommunications management system based on TMN. To construct this interface, an appropriate communication protocol must be selected to perform management through efficient message exchange. The human machine interface provided by the WS should specify the managed objects. The interface also needs to be implemented so as to minimize the software revisions needed when the computer or its associated window system, or both, are changed. The proposed method addresses all these requirements. GUI components for realizing the HMI function are defined as Managed Objects as are communication network resources. Therefore, the communication protocol in TMN is defined as unique and it is possible to separate the HMI Interface from the OpS. CMIP is employed as the communication protocol to provide efficient message exchange. Software components that realize the human machine interface are selected so as to satisfy functional requirements specific to telecommunications management. The managed objects (MOs) and their relationships are investigated in order to represent these components appropriately. In the proposed method, the CMIP-based OpS-WS interface allows the OpS to take the manager role and the WS take the agent role. An implementation technique for MOs is also presented. The technique enables the software that implements MO behaviour to be coded easily. A prototype is built to confirm the correct operation of the proposed OpS-WS interface, and it is shown that CMIP requires fewer message exchanges to indicate alarms on the WS than other protocols. The proposed method is also advantageous because of its flexibility. That is, the WS software can be updated with little effort when the computer or its associated window system, or both, are changed.