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題 名 | The Testing of the Detailed Design of Level 3 in CCS No.7 System=共通道No.7系統第三階層細部設計之測試 |
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作 者 | 張勇志; 郭美杏; 黃鑑武; | 書刊名 | 電信研究 |
卷 期 | 18:1 1988.03[民77.03] |
頁 次 | 頁49-67 |
分類號 | 448.6 |
關鍵詞 | 共通道; 系統; 第三階層; 設計; |
語 文 | 英文(English) |
中文摘要 | CCITT依功能將CCS NO.7信號系統訊息轉換部(Message Transfer Part)區分為三個功能階(Level),本報告就僅其中之信號網路階,即第三階(Level 3)部份加以研究。第三階之主要功能包括信號處理(Signalling Message Handling)及信號網路管理(Signalling Network Management)兩大部份,前者之目的在於確保信號訊息能準確無誤地送達目的地,而後者之功能,則在網路系統發生異常狀況時,提供必要的網路管理措施以維護該網路系統。 本報告之目的在於驗證某些第三階功能在邏輯上的正確性。在四種不同的測試信號網路模型中,本研究以Intel 286-310微處理機來模擬信號點(Signalling Point)或信號轉接點(Signalling Transfer Point)。 本報告之第一章將介紹第三功能階。第二章介紹訊息、控制及指示(Control & Indicator)之傳送。第三章介紹不同的網路模型。第四章中提供路由表及鏈路表(Link Tables)以測試網路在正常及故障情況下的訊息傳送方式。這些網路故障情形包括擁塞(Congestion)不可到遠(Inaccessibility)及鏈路失敗(Link Failure)等,其相關之消息將顯示於螢光幕上。第五章就不同模型之測試結果作成結論,希望這些結論將有助於往後有關CCS之研究工作。 |
英文摘要 | According to the CCITT recommendation, the functional levels of CCS No.7 Signalling System Message Transfer Part (MTP) can be divided into: –Signallin Data Link Function (Level 1); –Signalling Link Functions (Level2); –Signalling Network Functions and Testing and Maintenance (Level 3). The main content discussed in this report focuses on the Level 3 only. The signalling Network Functions can be separated into two basic categories, namely; –Signalling Message Handling, and –Signalling Network Management. The purpose of Signalling Message Handling is to ensure that the signaling messages are delivered to the destination accurately. While the Signalling Network Management functions provide the actions and procedures required to maintain signaling service, and to restore normal conditions in the event of disruption in the signaling network. The objective of this report is to verify the logical correctness of some Level 3 functions. Four kinds of testing signaling network models will be involved in this research and the Intel 286/310 microprocessor will act as a Signalling Point (SP) or Signalling Transfer Point (STP) in these network models. All the function of Level 3 will be introduced in Chapter 1. And the transmitting of the message and control & Indicator are introduced in Chapter 2. Chapter 3 will describes the different four kinds of testing signaling network models. In Chapter 4, routing tables and link tables are provided to test the message(s) routing with or without network failures. The network failure tested included congestion, inaccessibility, and link failure which will be displayed on the terminal screen by showing some relative messages. Chapter 5 lists some conclusions acquired through above model testings. These conclusions will be helpful in the future research on the CCS files.. |
本系統中英文摘要資訊取自各篇刊載內容。