GIS based network management study and its application

The electric power transmission network management is changing from decentralized to province-centralized mode to adapt to the development trend of power grid. For the current hierarchical management situation of transmission system, the paper mainly studies the centralized mode. Considering the difficulty of transform, security, the demand of bandwidth and augmentability factors, the paper proposes a hierarchical province-centralized mode based on Resource pool and states its architecture, realization methods and deployment mode of Network Manager System in Cloud, realizing the unified management, configuration and data sharing of the whole province. Deploying the network management system in the Clout is taking full use of the resource sharing, efficient management and on-demand resource of the Cloud to realize the intensification, promoting the scheduling intensive management level of Information and transmission. Introduction For a long time, the layered, graded, zoned management mode of electric power communication networks makes the network management system built and maintained by the way of multi-level scheduling mechanism. In order to fulfill the development trend of power grid, power transmission network management should be developed from the provinces and cities separated pattern to the province-centralized mode to realize unified management, unified configuration and sharing of the communication network data within province and achieve the purpose of concentrate and highly active management, reasonable resource-configuration and optimizing the structure of the network resources. Deploying the communication network management centrally is an effective way to enhance the level of intensive management, which, whereas, will cause the load that systems deal with increase sharply. However, Cloud computing technology integrates resources into form Cloud in order to get higher utilization of computing and storage, having a strong computing power and storage capacity. With the development of Cloud construction, deploying communication network management in the pool can improve data reliability and security. This paper puts forward a hierarchical province-centralized mode based on Cloud by researching on concentrated-model of Transmission Network Management, and describes the model in detail. Discussed Problems Power system communication network is the important technology support and infrastructure platform of the grid. As an important guarantee of power grid security, stability and economic running, communication network management system is the important technology means of the communication network management and maintenance. International Power, Electronics and Materials Engineering Conference (IPEMEC 2015) © 2015. The authors Published by Atlantis Press 596 Communication network management system At present, the general transmission network management system is divided into Element Management System(EMS), Subnet Management System(SNMS) and Network Management (NMS) in terms of the management level. EMS is based on the device manager and realizes the management of safety, configuration, performance and alarm for specific equipment; SNMS can divide the network elements into various subnets, not only manage the elements equipments but also the topological relation between them. NMS is a higher level than the SNMS and manage multiple SNMS systems at the same time through network. It configures the router for each business level, and also shows the network elements’ circumstances of each time slot and the business relationships at all levels in details. The relationship of different level network management system is showed as the figure 1.

To develop a network management system (NMS) more easily, the authors developed an application programming interface (API) for configuring network devices. Because this API is used in a Java development environment, an NMS can be developed by utilizing the API and other commonly available Java libraries. It is thus possible to easily develop an NMS that is highly compatible with other IT systems. And operations that are generated from the API and that are exchanged between the NMS and network devices are based on NETCONF, which is standardized by the Internet Engineering Task Force (IETF) as a next-generation network-configuration protocol. Adopting a standardized technology ensures that the NMS developed by using the API can manage network devices provided from multi-vendors in a unified manner. Furthermore, the configuration items exchanged over NETCONF are specified in an object-oriented design. They are therefore easier to manage than such items in the Management Information Base (MIB), which is defined as data to be managed by the Simple Network Management Protocol (SNMP). We actually developed several NMSs by using the API. Evaluation of these NMSs showed that, in terms of configuration time and development time, the NMS developed by using the API performed as well as NMSs developed by using a command line interface (CLI) and SNMP. The NMS developed by using the API showed feasibility to achieve “autonomic network management” and “high interoperability with IT systems.”

The integration of telecom energy systems within today's evolving definition of network management systems (NMSs) is discussed, emphasizing the viewpoint of the various generic network management centers (NMCs) in an attempt to determine where telecom energy systems fit into NMSs and the telecommunications management network (TMN). As the levels of key competent network support system (NSS) personnel continue to dwindle, companies are being forced to install mechanized systems to meet today's required performance levels of per capita personnel effectiveness. The author categorizes the evolving staffing levels of NSS personnel, identifies the specialized needs of each user station type, and correlates that information with the design requirements of the evolving mechanized network management systems.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

A generic architecture for management and control of end-to-end quality of service over multiple domains

Network management is challenging. To operate, maintain, and secure a communication network, network operators must grapple with low-level vendor-specific configuration to implement complex high-level network policies. Despite many previous proposals to make networks easier to manage, many solutions to network management problems amount to stop-gap solutions because of the difficulty of changing the underlying infrastructure. The rigidity of the underlying infrastructure presents few possibilities for innovation or improvement, since network devices have generally been closed, proprietary, and vertically integrated. A new paradigm in networking, software defined networking (SDN), advocates separating the data plane and the control plane, making network switches in the data plane simple packet forwarding devices and leaving a logically centralized software program to control the behavior of the entire network. SDN introduces new possibilities for network management and configuration methods. In this article, we identify problems with the current state-of-the-art network configuration and management mechanisms and introduce mechanisms to improve various aspects of network management. We focus on three problems in network management: enabling frequent changes to network conditions and state, providing support for network configuration in a highlevel language, and providing better visibility and control over tasks for performing network diagnosis and troubleshooting. The technologies we describe enable network operators to implement a wide range of network policies in a high-level policy language and easily determine sources of performance problems. In addition to the systems themselves, we describe various prototype deployments in campus and home networks that demonstrate how SDN can improve common network management tasks.

Several organizations are incorporating the architecture being developed by the Open Systems Interconnection/Network Management Forum into their network management products and systems. It is expected that, as this architecture develops, it will be the basis for multivendor exchange of network management data for the next five to ten years. This architecture and key concepts being developed by the Forum to allow the interoperation of several network management systems using an open interface are summarized. These apply to the full range of networks that must be managed, including computer and communication, local area, wide area international, voice (public and private), and packet data networks. The concepts covered include: Conformant Management Entity (CME), which is a management system that supports the interoperable interface defined by the Forum; managed objects, the abstract representations of the real resources to be managed; and the interoperable interface, which consists of a defined set of protocols (using the OSI seven-layer protocol stack) over which particular messages about managed objects are exchanged.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

The ever evolving telecommunication networks in terms of their technology, infrastructure, and supported services have always posed challenges to the network managers to come up with an efficient Network Management System (NMS) for effective network management. The need for automated and efficient management of the current networks, more specifically the Next Generation Network (NGN), is the subject addressed in this research. A detailed description of the management challenges in the context of current networks is presented and then this work enlists the desired features and characteristics of an efficient NMS. It then proposes that there is a need to apply Artificial Intelligence (AI) and Machine Learning (ML) approaches for enhancing and automating the functions of NMS. The first contribution of this work is a comprehensive survey of the AI and ML approaches applied to the domain of NM. The second contribution of this work is that it presents the reasoning and evidence to support the choice of Bayesian Networks (BN) as a viable solution for ML-based NMS. The final contribution of this work is that it proposes and implements three novel NM solutions based on the BN approach, namely BN-based Admission Control (BNAC), BN-based Distributed Admission Control (BNDAC) and BN-based Intelligent Traffic Engineering (BNITE), along with the description of algorithms underpinning the proposed framework.

With the development of the computer network, and the great change in the demands of network management, any Network Management System is a process of development and perfection. Therefore, designing a rational system structure is the foundation to ensure the good scalability of the system. The main issues and characteristics of Network Management in Campus Network at present were analyzed in the thesis, and the system structure of Network Management in Campus Network were discussed, which includes data collecting layer, centralized-processing layer, network management layer, service management layer. The basic network management system framework of campus network based on Web and its deployment method were also proposed in this paper, which cover the most of the demand for network management. The framework has a good scalability, which lay the foundation for the development of Network Management System in campus network.

Many network events need to be handled in a timely fashion. However, current practices are not sufficient to support timely handling of network events mainly due to the lack of a real-time network management model and facilities. In this paper, we propose a network management system, named a real-time distributed network management (RTDNM), in which the telecommunication management network (TMN) model and the time-triggered message-triggered object (TMO) model are incorporated to support network management facilities and timely handling of network events. In order to realize RTDNM, temporal characteristics of managed objects in a network are modeled and CMIS/CMIP, a network management protocol used in TMN, is annotated whit real-time constraints so that timely handling of network events can be supported. A message scheduling scheme for network management is proposed to guarantee timeliness for critical network events. Finally, we present the design of our RTDNM and show current results with a prototype implementation. The scheme presented turned out to be effective for timely handling of network events.

Power communication integrated network management system plays a significant role in the planning, design and maintenance of the whole power communication network. This paper analyzes the characteristics of the current power communication network and the corresponding integrated network management system, and improves the design of the existing power communication network integrated network management according to Sdn. This network management system can be used as a supplementary system for the current power system integrated network management function, realizes the global visualization of the power communication network, and provides a strong support for the operation and maintenance of the power communication network. The test running environment is built in the laboratory to realize the mapping of physical route and logical link. The preliminary verification test of the new network management system based on openflow technology is carried out, and the key design methods and ideas of the system are given.

This chapter looks at some of the issues in managing multimedia networks. To manage such multimedia networks, neither the voice network management system, the data network management system, nor the video network management system is adequate. The chapter discusses the network management areas in more detail and presents options involved with managing multimedia networks. In multimedia networks, the Integrated Network Management System (INMS) has to recognize the interdependencies of alarms between various media. In multimedia networks, the role of the end devices becomes more important to the satisfactory connections and services. Customer network management allows the customers access to the INMS with applications to manage their own real or virtual networks. In multimedia networks, performance management also ensures the effective functioning of the various media making up the services. The basic network management techniques and concepts will not change, but the integration of all these techniques and concepts into an INMS will be the theme of the future.

A variety of Web-based applications, mobile apps, and other over the top data services with affordable 3G/4G enabled smart devices are major factors for enormous increase in heterogeneous data traffic at enterprise and mobile networks. This creates challenges regarding traffic management and requires traffic-aware intelligent network management to deliver sustained quality of experience for subscribers. Deep packet inspection and analysis (DPIA) provides base platform for development of traffic-aware intelligent network management and security systems. However, computationally complex DPIA-related packet processing for high speed data traffic makes these systems expensive. Furthermore, conventionally these traffic-aware network management and security systems are deployed in enterprise networks with independent and dedicated DPIA-related processing resources and require multiple copies of passively provisioned high speed data from network, while performing similar DPIA operations over the same data again and again. This duplicate deployment of expensive software and hardware resources for DPIA processing eventually results in higher capital expenditures as well as operational expenditures for network operators. We have proposed a novel service-oriented framework for heterogeneous deep packet inspection and analysis (SoDPI) that simultaneously provides diversified DPIA services to multiple client applications for network management and security operations in high-speed networks. Proposed framework provides flexible and comprehensive API-based service interface for client applications to register required DPIA services. SoDPI framework implementation is based on commodity hardware and deploys shared set of DPIA-related packet processing components, requiring only single copy of passive data provisioned from network. Experimental evaluations show that novel SoDPI framework requires considerably reduced amount of software and hardware resources to fulfill heterogeneous DPIA packet processing requirements for multiple client applications in comparison with conventional network management and security applications with dedicated DPIA components. This results in lower cost impacts for network operators with more network manageability.

This paper presents in the area of software defined networking. Our aim is to identify limitations of current networking technologies and how software-defined networks (SDN) could reduce cost, and improve the performance of campus Networks for their network management. We pursue to identify solutions in this paper to enable possible customers to assess that SDN may be preferable over Current network and also SDN introduces new options and configuration methods. In this paper, we identify problems with the current state of the art network configuration and management mechanisms and introduce new mechanisms to improve various aspects of network management. The technologies we describe enable network operators to implement a wide range of network policies in a high-level policy language and easily determine sources of performance problems. In addition to the systems themselves. Here we refer a various prototype arrangements in campus networks that demonstrate how SDN can improve common network management tasks. In addition to that, we explains therotically that, how SDN can improve the network management performance in network.

The monitoring and management of computer and telecommunication networks becomes increasingly difficult as these networks grow in size and complexity. Moreover, several new functional requirements appear for these network management systems in the emerging field of digital multimedia networks. Therefore, the need for scalable and distributed network management systems based on open communication standards remains as relevant as ever. We investigate the use of Web services as an open communication standard for network management systems. After a concise description of Web services and their possible advantages for network management systems, we present a case study. A Web service architecture is used to build a network management system for a data broadcasting network to distribute digital movies. The presented architecture allows several additional management functionalities that are required in such digital content networks.

Network management (NM) has been in some way an activity apart from any other carried on the networks. Monitoring networks and systems resources independently from how users and applications are using them, has proven to be an inadequate approach since in most of the situations it's impossible to trace the relationship between network or systems faults and the applications affected by them. Furthermore, the degradation of network and systems resources can be considered as a fault from an application point of view, and there aren't any form to be aware of this degradation/fault, since applications requirements are not known to the network management system (NMS), and even when it happens the network can apparently still be viewed as functioning. Currently, the management efforts are used mostly to diagnose the origin of the faults, or to notify the systems administrators of the presence of a fault which in our opinion could be perceived by the network manager at very late stage. In this article we propose a way to bring the management closer to application and user requirements. The approach relies on spreading intelligent agents through network segments or domains, these agents being the management front-ends responsible to: collect QoS requirements concerning application operation over the network monitor required resources, perform when possible corrective actions, or at least provide management staff with powerful data so that they can take the corrective actions faster than before. We expect to benefit from being aware of how network and systems are used to develop a proactive management in real time, without the burden of classical approaches.