一种基于CORBA和TMN结构的ATM网络管理模型

本文给出了一种基于CORBA和TMN结构的ATM网络管理模型。首先介绍模型的OS结构,并将ATM与其传输网SDH进行集成管理;其次定义了该模型在不同域之间交换信息的接口,即所谓的Xcoop。结果表明该模型能够实现分布式网络管理、保证宽带连接业务的端到端QoS,并且有故障管理和配置管理功能。     

Cellular network management goals and data-centric solutions

We elaborate on the management goals of next-generation cellular networks and describe how data-centric solutions can meet these goals. In a data-centric solution, operator applications act on a database representation of the cellular network. Network operations are invoked as a consequence to database changes, and the network, in turn, feeds the database with data such as network event notifications. The data-centric approach allows a focus on data as it is specified by the business needs of network management. This approach is augmented with data independence to assure consistent and flexible access of the data environment through the use of a common data interface. The data-centric design is contrasted with an application-centric design, and we conclude by providing suggestions on how application interface components can augment a data-centric network management solution     

基于元模型的综合资源管理方法

建立业务对象的元模型,并封装成为业务对象操作的应用程序接口,从而实现对不同专业的综合网络资源以及动态创建、调整或升级的设备进行有效管理,满足对极其复杂的综合网络资源进行管理的需求。     

Operations standards for global ATM networks: network element view

The International Telecommunication Union (ITU) has completed work on a series of standards on asynchronous transfer mode (ATM) equipment functional operations and network element management. The objective of these standards is to enable flexible design and interoperability of network elements for use in a global ATM network, independent of any specific implementation. This article discusses these standards with respect to their development and application in planning ATM networks. Specifically, it addresses the following: the modeling approach taken in the development of the ITU standards, key operational features specified in the ATM network element functional model, and the capabilities of the ATM network element management interface. Examples of ATM equipment are provided to illustrate how the functional models specified in the ITU standards may be used by network planners and equipment manufacturers to specify and develop ATM equipment tailored to specific needs, while ensuring network interoperability. The article concludes with some points on the future enhancement of these and related ATM equipment operations standards     

Network management and control systems and strategic issues

The development of a network management strategy and a network control system for the large integrated telecommunications network (ITN) at American Express Travel Related Services Company is discussed. Network control relates to operational activities such as the diagnostics, configuration, monitoring, and performance of networks, and network management relates to all of the functions performed to manage network resources. An architecture that addresses both control and management requirements is described. Network control functions are consolidated so that operations have a single interface to the system and can operate dissimilar systems from a single workstation. NETVIEW, a licensed IBM software, performs the functions of a focal point, and the network element management system (NEMS) addresses the management of network elements. The centralization of alarms and/or alerts and issuance of commands provides immediate capability to monitor and resolve network problems through a single set of terminals as well as a platform for further automation through the use of artificial intelligence technology     

WSANFlow: An Interface Protocol Between SDN Controller and End Devices for SDN-Oriented WSAN

When dealing with a Wireless Sensor and Actuator Network (WSAN) structure, one of the challenging problems is lack of flexibility in such network operations as establishment, management, and configuration. Software-defined Networking (SDN) is a promising technology for a simpler, more flexible, and less overworked network structure. Integration of SDN as a solution into the existing WSAN structures seems to be a strong candidate of deployment solutions for next generation WSAN systems. In order to get enhanced performance results for WSAN systems, we proposed an interface protocol, referred to as WSANFlow, which is responsible for all the communications between SDN controller (SDNC) and SDN-oriented end devices. The SDNC in this approach has the network intelligence and is capable of handling all the control and management operations related to the network. Thus, advanced communication operations can be managed and efficiently optimized efficiently by the SDN controller and then, subsequently, corresponding instructions can be delivered to end devices using the proposed WSANFlow protocol. In the study, we analyzed the proposed framework performance, in terms of power consumption ratio, throughput, and end to end delay metrics. Then, we compared the results with those of a ZigBee-based counterpart for different workloads such as; light, heavy and heavier load which modelizes a video stream of mild parameters. The results show that not only has the overall performance of the existing WSAN system been enhanced, but also control and management operations have been simplified by the proposed model.     

CORBA在光缆线路自动监测系统的应用研究

光缆线路自动监测系统是电信管理网中传输网管理域的一个子网,在通信网络的稳定运行中扮演着重要的角色.文章分析了传统的光缆线路自动监测系统存在的不足,提出了光缆线路自动监测系统与传输网综合网管融合的方案,并设计了远端监测系统的北向接口.     

Distributed resource management and connection control for a multi-access interface to a broadband ISDN (BISDN)

A customer premises network (CPN) provides a common communications fabric to efficiently integrate the traffic of multiple terminals on a common access interface to a BISDN. An important consideration in choosing a CPN architecture is to facilitate terminal portability and application transparency, so as to accommodate standard broadband terminals and applications, requiring only minor modification to adapt them from the standard BISDN interface to the multi-terminal environment. This paper explores the multi-faceted issues of CPN transparency with an emphasis on the evolving BISDN control and management architecture. We introduce a control architecture that conforms to a rigorous separation between ‘call control’ and ‘connection management’. This allows the CPN to be transparent to the user to network signalling exchange, and to participate only in the connection management via a remote resource management protocol. More generally, this scheme allows a call control entity located in a local exchange node (LEN) to manage a distributed set of resources such as switches and multiplexors (and CPNs). This is achieved through the definition of a standard interoperable interface between the central call control entity and the connection control entities which may be remotely located in various network elements. The features and functionality for such an interface, which we term the bearer connection control interface, are described within the framework of the OSI remote management architecture. A standard remote resource management protocol allows for the co-operative sharing of resources across administrative domains. Although the importance of such a scheme is particularly visible as applied to remote CPN management, it is useful in other application domains where it is advantageous to distribute management processes.     

Cacti在企业内部数据网的应用

介绍了基于开源Cacti软件,构造一个全局性跨越不同网络设备、不同网络业务的数据网监控系统,使用人性化、图形化、智能化的人机操作界面,通过对该软件的二次开发,集合了数据采集、网络流量监控、设备状态监控、网络性能分析、故障定位、异常短信告警等切合实际需求的功能于一体,极大促进网络监控管理模式向科学、高效、精细化的方向发展。     

Management and control for giant gigabit networks

The authors describe the new challenges presented for the management of broadband networks and outline the framework of the COMET research group at Columbia University for finding solutions to these challenges. They review a prototype that implements some of the requirements for managing the broadband networks of the future. In the COMET framework, management operations are defined in terms of primitives with a much higher semantic level than that typified by get and set in the Open Systems Interconnection (OSI) management model, and the user interface to the managed system is based on virtual worlds that allow the manager to directly visualize and interact with the network. The impact that this new environment may have on existing management architectures is discussed     

Direction for element managers and network managers

In the past, each new network element of a wireless network had a corresponding management system to provide management capabilities. Each of these management systems had a different user interface, employed a different computing platform, and typically managed one type of network element. The total O&M system was the sum of these independent resources, consuming partial solutions that made network management tasks inefficient, complex, time consuming, and expensive to administer. Large operations costs borne from these inefficiencies were once buffered by large cellular operator profits. With the introduction of PCS, operators became extremely cost conscious and sought to eradicate these large costs. Additionally, wireless service providers moved into a mixed vendor environment, where network elements manufactured by several vendors are used, so they could no longer afford different management systems for each network element. In today's environment, a wireless service provider who can provide better service quality at the lowest price will be the ultimate winner. The key to providing better service quality at the lowest price is to have efficient network management. As the wireless industry strives to push wireless prices on a par with wireline, the necessity for reduced network operation and management costs takes on increasing importance     

水利卫星应急通信网络管理系统的设计与实现

随着水利卫星应急通信网规模越来越大,不可避免地带来管理信息不能互通、操作界面多样复杂等问题。为便于业务的统一管理,提高通信保障能力,分析了水利应急通信网络管理系统的主要需求和功能,并对网管的进行了简要设计。     

Nom 2.0: innovative network operations and management for business agility [technology leaders forum]

Faced with growing fierce competitive pressure on all fronts and market saturation, traditional telecommunication operators are now struggling to find the breakthrough approach by which they may successfully reshape their role from network service providers to multimedia service providers. They are re-examining their voice-centric business models and deploying next-generation networks (NGN) for QoS-guaranteed delivery of multimedia quadruple play services (QPSs). To cost effectively realize these paradigm shifts, the existing ";stability-oriented"; network operations and management infrastructure and processes should be migrated into ";service-oriented"; and ";business-driven"; network operations and management within the context of today's multimedia and converged business environments. In this article, I'd like to introduce Network Operations and Management 2.0 (NOM 2.0), which is an innovative next generation operations and management paradigm for telephone company business agility and customer value creation. KT recently proposed Telco 2.0 [1], a new role and business model in the IP world to create customer value. NOM 2.0 is a key component needed to realize the Telco 2.0 goals. Telcos need to transform their operations and management framework into a human-centric and highly intelligent and automated one, and become the market leader by providing an agile operation and management framework within ever-changing operations and business environments. I will describe what NOM 2.0 is and how it is being realized in my company, KT.     

Combining factual and heuristic knowledge in knowledge acquisition

A knowledge acquisition technique that combines heuristic and factual knowledge represented as two hierarchies is described. These ideas have been applied to the construction of a knowledge acquisition interface to OPERA (Expert System Analyst). The goal of OPERA is to improve the operations support of the computer network in the space shuttle launch processing system. The knowledge acquisition bottleneck lies in gathering knowledge from human experts and transferring it to OPERA. OPERA's knowledge acquisition problem is approached as a classification problem-solving task, combining this approach with the use of factual knowledge about the domain. The interface has been implemented in a Symbolics workstation, making heavy use of windows, pull-down menus, and other user-friendly devices.     

基于XML的新一代综合接入网网管

当前电信网网管技术发展迅速,而可扩展标记语言（XML）作为新的网管接口技术正引起人们的重视。文章介绍了当前主要网管接口技术的特点,提出了一种以XML作为接口的综合接入网Web网管模型,并分析了这种模型的特点。     

开放式HFC关键技术及应用研究

通过分析国内HFC网络管理的现状,认为当前需要解决网管的开放性和兼容性问题,并描述了HFC网管接口规范,强调了网管接口的规范化和标准化。     

浅谈计算机网络管理技术的发展趋势

网络管理技术是控制一个复杂的计算机网络使得它具有最高的效率和生产力的过程。根据进行网络管理的系统的能力,这一过程通常包括数据收集以自动地或通过管理者的手动方式进行数据处理,然后提交给管理者,用于在网络操作中使用。它可能还包括分析数据并提供解决方案,甚至可能不需要打扰管理者而自动处理一些情况,进一步还可以产生对管理者管理网络有用的报告。通常,网管系统主要是由管理者和管理代理两种实体组成。     

基于snmp的网元设备的面板管理

网络管理员通过网元管理系统对网元设备进行管理。网元管理系统的有效操作界面可减少对网管人员的训练和技能要求，增加操作正确性、节省时间和成本。网元管理系统通过网络从网元设备上获得网元的设备信息，以面板的方式如实地显示在界面上，使管理员从网元管理系统中看到的网元设备与远程实际的网元设备保持一致，已经成为网元管理系统的基础。根据网元实现的entitymib，建立了一个易于扩展的信息模型，设计并实现了面板可视化布局算法，可再现设备“原貌”。     

A generic operations system interface to support the nextgeneration of digital loop carrier systems

The application of a generic interface between operations systems and microprocessor controlled network elements (OS/NE) to both universal and integrated DLC (digital loop carrier) systems is discussed. The high-level components of a DLC system are defined, and a generic interface between operations systems and their central office terminal of a microprocessor-controlled DLC system is described. The adaptation of the generic operations-systems interface to the DLC system for use with a generic interface between the local switching system and the remote digital terminal of an integrated DLC system is explored. Some issues associated with integrating a DLC system into a switching system are presented     

基于DSG的传输网综合管理系统研究与实现

在对传输网络管理的现状和存在的难点问题进行深入研究的基础上,基于先进的网管开发平台DSG,提出了传输网综合管理系统的实现方案,系统的实现解决了接口协议不同、系统升级、系统定制和系统扩展等网管建设中存在的难点问题.