基于CORBA的多协议适配网关的设计与实现

【作者】 吕铭；

【导师】 刘玓；

【作者基本信息】 电子科技大学 ， 计算机系统结构， 2002， 硕士

【摘要】 第三代移动通讯技术的飞速发展给当代的电信网络管理带来了革命性的挑战。基于CORBA的TMN综合网管系统使得电信网管向开放、分布式处理技术转变，解决了不同网管系统的互联、互通和互操作。 基于CORBA的TMN网管系统本质上是一个典型的分布式异构系统。综合的目的就是要在全网内进行信息的交换、资源的共享、故障的定位、性能的分析等等。为了达到这个目的，必须有个先决条件，就是全网各子系统之间要能够进行信息的共享，要能够进行与设备侧的互通和互操作。为此，我们研究、分析并设计了一套基于CORBA的多协议适配网关系统，通过CORBA对象封装、接口适配，向上层提供了统一的CORBA接口。 多协议适配网关涉及两个关键技术：基于对象的接口信息模型定义和网关的框架结构。接口信息模型是改进和提高一个标准网络管理框架的互操作性和不同设备提供商的网络管理系统之间的信息交换能力的关键。本系统采用CORBA/IDL描述信息模型，实现了信息模型在不同管理框架下的互通。对于网关的框架结构，本系统利用CORBA技术，屏蔽对象通信的细节，完成对象的注册、定位和激活，请求解释，差错处理，以及操作传送等工作；充分利用分布式处理环境中的CORBA公共服务完成网络管理中支持每个信息模型里的对象命名和通知过滤等功能，而不是在每一次使用这些功能时再重新定义接口，使得网络管理信息模型变得更加简单，并且具有互操作性；通过分析多协议适配技术中可能存在的设计模式，不仅总结出各种具体协议网关的共同特点和一般结构，而且将这些规律内在的思想抽象出来，形成一套可以被重用于网管软件的支撑服务；深入研究ACE跨平台机制，实现多协议适配网关跨平台功能，为现代网管软件的低成本开发方案提供了坚实的理论基础和丰富的实践经验。本文详细阐述了如何构建一个灵活的基于CORBA的多协议适配网关框架结构和可重用的开发平台。更多还原

【Abstract】 The rapid development of the third-generation mobile telecommunication technology has taken revolutionary challenge to telecommunication network management. The TMN integrated network management system based on CORE A will surely make key action for the telecommunication management’s conversion to be open and distributed, resolving diverse network management system’s intercommunication, and making foundation of interconnection and interoperation among diverse network management system.The TMN integrated network management system based on CORBA is essentially a typical distributed and heterogeneous system. It provides the exchange and share of information, unified performance and fault management, etc. Consequently, we designed a multiple-protocol adapter gateway system based CORBA, which provides a uniform CORBA interface to upper layer.Multiple-protocol adapter gateway deals with two critical technologies: Interface information model definition and gateway’s architecture. Interface information is the key of improving interoperation of a standard network management frame and information exchange capability among network management system of different equipment provider. This system used CORBA/IDL describe the information model, and implemented the intercommunication among information model of different management frame. As for gateway’s architecture, this system makes full use of CORBA technology and common object service in distributed environment to complete every object naming in information network management supported, and notification filtering function rather than redefine the interface in next use, and which make information model more simple, even with interoperation; through analyzing the existing design pattern in multiple-protocol adapter technology, we not only summarized the common characteristics and nomal architecture, but also abstracted the idea in these innel law, and formed a set of supported service that can be reuse in network management software; deeply researched ACE striding platform mechanism, implemented striding platform function of multiple-protocol adapter gateway, and provided strong theory foundation and rich practicing experience. This thesis explains detailedly how to build flexible frame architecture of multiple-protocol adapter gateway and a reusable development platform.更多还原