臺灣博碩士論文加值系統

非同步傳輸模式是一種把電路交換的優點及封包交換的彈性結合起來的新傳輸技術，使用非同步傳輸模式技術幾乎可以傳送所有服務。非同步傳輸模式交換機在非同步傳輸模式網路中扮演著關鍵性的角色，它將兩端點的資料細胞依特定的虛擬路徑或虛擬通道做交換。在本論文中，我們設計了一台可以支援PVC及SVC能力的非同步傳輸模式交換機。原型機包括了交換機母板及介面模組，並且已經經過一些基本的測試。

Asynchronous Transfer Mode (ATM) is a transfer technology that combines the advantages of circuit switching and flexibility of packet switching. It is possible for ATM to transmit almost all kinds of services. ATM switch is a key element for ATM network. It switches cells from end to end by specified VPI/VCI. In this Thesis, we have designed an ATM switch with PVC and SVC capability. A prototype of ATM switch motherboard and line interface module was created and some tests were performed.

CHAPTER 1 INTRODUCTION4
1.1 OVERVIEW4
1.2 ATM STANDARDS4
1.3 ATM SWITCHING7
1.4 MULTIPROTOCOL LABEL SWITCHING8
1.5 ORGANIZATION OF THE THESIS9
CHAPTER 2 ATM SWITCH ARCHITECTURE10
2.1 OVERVIEW10
2.2 SWITCH ARCHITECTURE10
2.3 UTOPIA AND DPI INTERFACES12
2.4 GENERIC DATA FLOW16
2.4.1 Initialization phase and control cell16
2.4.2 Special VCs mapping17
CHAPTER 3 HARDWARE DESIGN19
3.1 OVERVIEW19
3.2 SWITCHING MEMORY19
3.3 SWITCH CONTROLLER21
3.4 FPGA DESIGN24
3.5 LINE INTERFACE MODULE24
3.6 MICROPROCESSOR SUBSYSTEM27
CHAPTER 4 ATM SWITCH IMPLEMENTATION AND TESTING29
4.1 IMPLEMENTATION29
4.2 TESTING ENVIRONMENT34
CHAPTER 5 CONCLUSIONS36
5.1 CONCLUSION36
5.2 FUTURE WORKS36

[1]Rainer Handel, "ATM NETWORKS: Concept, Protocol, Applications", 3rd edition, 1997
[2] Af-phy-0017.000, "UTOPIA Specification Level 1: Version 2.01", March 21, 1994
[3] IDT, Inc., "IDT77V400, 8x8 Integrated Switching Memory", March 1999
[4] IDT, Inc., "IDT77V500, Integrated Switch Controller", March 1999
[5] IDT, Inc., "IDT77155, PHY User Interface", June 1998
[6] IDT, Inc., "IDT77010, DPI To UTOPIA Level 1 Translation Device", October 1998
[7] IDT, Inc., "DPI Interface Specification"
[8] Advanced RISC Machines Ltd., "ARM7 TDMI Datasheet"
[9] ITU-T Recommendation, I.610, "B-ISDN Operation and Maintenance Principles and Function"
[10] ITU-T Recommendation, Q.2931, 1995