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Research and Design of ONU Management and Control Module in GPON Network Management System

Author: PangLiJie
Tutor: ZhangJiangZuo
School: Zhejiang University of Technology
Course: Communication and Information System
Keywords: GPON network OMCI MIB Data collection ARM
CLC: TN929.1
Type: Master's thesis
Year: 2010
Downloads: 68
Quote: 0
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Abstract


Gigabit passive optical network as a third-generation PON technology not only inherited the multipoint transmission technology, flexible composition tree, star, bus topology, etc. PON technology features, and overcome the ATM technology to carry IP APON Business efficiency is low, EPON carrying TDM services have significant limitations and other shortcomings, a new generation access network cost-effective solution. To take full advantage of high bandwidth, GPON system, long-distance, high-branching ratio and full-service access to comprehensive advantages, reduce network failures, reducing or eliminating network signal is interrupted, protect their reliable, efficient, stable operation, providing its matching NMS became effective way. Therefore, the support system for GPON system network management system research and design of great significance. This paper describes the structure of GPON system and how it works, based on the GPON network management system for the whole architecture. Then GPON series of standards by analyzing the OMCI protocol, management control plane protocol, MIB library agreements and ONU Alerting Protocol, focusing on research and design of the ONU-side management control module, which includes determining the ONU has the management control function, raise the ONU management and control module of the software structure diagram and in-depth study of the software structure of the functional module, including the OMCI protocol module, MIB management module, a data acquisition module and the ONU alarm module. Finally, to achieve the level of functional modules for key technologies related to the study and research, so as to follow the work provides a theoretical basis. Then based on GPON system architecture, network management system for GPON ONU end hardware platform embedded solutions are described and the establishment of the platform; GPON network management system based on the overall structure and characteristics of the ONU combine the functions of the management control module needs to establish a software development platform, including embedded system software platform, cross-compiler environment as well as embedded database development environment. Finally, according to the network management system requirements, development platform has been established to achieve the ONU side OMCI protocol module, MIB management and data acquisition modules. Based on the OLT and the ONU side using OMCI to manage information and communication theory, this choice of embedded system serial communication technology OMCI frame codec and transmission; based MIB fast, simple data structure and small footprint requirements, choose to adopt embedded database SQLite relational database management system and implement database communication interface; based ONU side need to collect physical data and data storage requirements, using built-in A / D converter for voltage data acquisition, control operations by writing hardware drivers equipment, write applications collect physical data; according to the ONU alarm protocol analysis and design of the ONU alarm management module. In this paper, the ONU OMCI protocol module, MIB management module and data acquisition module implementations GPON network management technology to promote the development and industrialization has important theoretical and practical significance.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Lightwave communications, laser communications
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