Network Management Environment Research Articles

CNSM 2019 special issue: Embracing the new wave of artificial intelligence

CNSM 2019 special issue: Embracing the new wave of artificial intelligence

Проблемы модернизации экономики образования России

В статье раскрываются актуальные проблемы, связанные с модернизацией экономики образования России. Определена необходимость формирования и развития единой информационно-сетевой среды управления, взаимодействия и интеграции, что позволит решить многие задачи, исходящие из необходимости модернизации сферы высшего образования, позволив создать систему реализации принципов открытости, прозрачности и публичности деятельности учреждений образования.

An emulating environment for network management of space network

An emulating environment for network management of the space network was presented. The emulating environment was developed with node-link model. The nodes of the satellite entities were controlled by the controlling network, which consist of sets of HLA/RTI based federates. These federates described the different aspect of the attributes of the satellites, such as orbit coordinate, routing table and the chain budget. We described the architecture of the emulation environment and the software design of federates. We measured the response time of the protocol data units and verified the detecting of the network topology in the environment. The environment was open that the on-board router and the simulator of satellite link which developed by third party could be integrated.

Power Systems Monitoring and Control Using Telecom Network Management Standards

Historically, different solutions have been developed for power system control and telecommunication network management environments. The former was characterized by proprietary solutions, while the latter has been involved for years in a strong standardization process guided by criteria of openness. Today, power system control standardization is in progress, but it is at an early stage compared to the telecommunications management area, especially in terms of information modeling. Today, control equipment tends to exhibit more computational power, and communication lines have increased their performance. These trends hint at some conceptual convergence between power systems and telecommunications networks from a management perspective. This convergence leads us to suggest the application of well-established telecommunications management standards for power systems control. This paper shows that this is a real medium-to-long term possibility.

분산 웹 환경에서 이동 에이전트 보안 모델에 의한 전자서명 메카니즘

현재 이동 에이전트 및 이의 전송과 실행을 위한 이동 에이전트 시스템의 구현에 Java가 많이 사용되고 있지만 Java의 기본적인 보안 모델은 이동 코드의 기능 확장성에 제한을 주는 문제점이 있다. 본 논문에서는 전자서명을 Java 기반의 이동 에이전트에 적용함으로써 시스템의 보안을 유지하면서 이동 에이전트의 기능 확장성을 보장할 수 있음을 보였다. 또한 이동 에이전트의 전자서명과 이의 망 관리로의 적용을 위해서는 망 관리국(NMS : Network Management Station)에서의 서명자 관리나 공개키 관리 등 전자서명과 관련된 기능 외에 망 관리 이동 에이전트의 등록과 전송, 실행 및 실행 관리를 위한 구성이 필요하다. 따라서 이를 위해 작성한 망 관리국과 관리 대상 시스템의 구성 모델의 보였으며, 제안한 구성방식의 동작을 검증하기 위해 망 관리 응용 예를 작성하고 평가하였다. 제안한 구성 방식을 사용하면 전자서명 처리로 인한 속도 저하의 문제가 있지만, 이동 에이전트의 사용으로 인해 얻어지는 부하 분산과 실시간 관리, 망 확장성 증대의 장점 이외에도 관리 기능 및 서비스 추가가 용이한 장점이 있다. Telecommunication network are becomming bigger and more complex. Its difficult to manage efficiently the networks, because these networks usually have heterogeneous and inompatoble compinents. Nevertheless, current approaches to network management have focused on centralized managementstrategies based on client-server architecture. These approaches have resulted in much weakness in the real-time management, the service extensibility, and the network scalability. In thispaper, we applied the mobile agent technology to solve the above problems. Jave is a promising technology for developing mobile agent system. But, there are several problems like the service extensibility in using the Java. To solve these problems, a new approach using digital signature is suggested to authenticate mobile agent in network management environments. This approach can solve the conflict between security of the system and extensibility of the mobile code. Moreover, the system suggested in this paper show the decentralized and flexible network management solutions.

A connectionless approach to integrated network management

As computer networks become more complex and more heterogeneous loften involving systems from multiple vendorsr, the importance of integrated network management increases. This paper proposes a model to represent an integrated network management environment lINMEr combining the emerging Webhbased management standards with the provenhandhtried network management solutions promoted by the Internet Activities Board, and centred around the Simple Network Management Protocol. © 1998 by John Wiley & Sons, Ltd.

Cost analysis of multicast transport architectures in multiservice networks

The paper provides a cost analysis of multicast channels in terms of transport resources allocated by the network. The analysis takes into account the diverse transport requirements of applications in multiservice networks such as multisource broadcasting of data to a common set of destinations, bidirectional/unidirectional data transfers among entities, and variable transfer rates of data. The cost model consists of mapping the transport attributes to resource demands and computing the network-wide resource consumptions for data transport. The cost analysis is independent of the specifics of the backbone network transporting the multicast data and, hence, can provide a network-independent measure of the cost-effectiveness of various multicast architectures. The usefulness of the cost model is illustrated by analyzing multicast data transport costs in "group shared tree" (GST) and "source-specific tree" (SST) architectures, with both empirical and simulation studies. The cost analysis methodology can be useful in the design and/or evaluation of multiservice data transport architectures. It can also offer a basis for the network provider to implement customer billing functions in a "pay-for-service" type of network management environment envisaged for multiservice networks.

Security considerations in a network management environment

Considers the security aspects of communication between two management processes operating in different management domains; identifies two major risks: the security of information exchanged during the management association, and control of access to the management information base (MIB); and enumerates the various threats that must be guarded against and possible methods of attack. Security techniques, including symmetric and public key cryptosystems, are employed in the design of a method of achieving a secure management association. A scheme of authorization control for MIB access is developed. The management of an open system's network resources takes place in the context of a management association. The resources themselves are controlled by an agent process which presents a view of these resources to the outside world as a number of managed objects, each of which contains a number of attributes. The collection of objects presented to the outside world by the agent is known as the MIB. A manager process regulates the operation of the managed resources by engaging in a management association with the agent and instructing it to carry out simple operations on elements of the MIB. Within a single management domain where all processing nodes and network links are under the control of the same administration, security is not such a critical issue. However, when the management association takes place across the boundary between two separate management domains, and make use of public data networks, security issues must be considered in greater detail. >

Fault management tools for a cooperative and decentralized network operations environment

Some institutions do not have centralized computer network operations. In the case of the Federal University of Rio Grande do Sul, some domains have their own group of people in charge of such a task locally and other domains do not. The paper describes the university's network approach, as well as the fault management tools to support such an approach. One of them, the CINEMA Alert System, analyzes the network after polling entities and generates alerts when required. Another, the CINEMA trouble ticket system, helps the decentralized operations staff in cooperating during network failure recovery processes. The main features of the tools and software modules' organization to achieve a cooperative integrated network management environment are presented. >

IBM network management strategy

This essay describes some major directions at IBM with respect to network management. It describes the network management environment and discusses four key initiatives of IBM's SystemView™ network management strategy. This strategy provides integrated applications and services, broadens the scope of network management products, provides open access to multivendor products, and delivers and supports complete solutions for customers.

Managing SONET networks

The synchronous optical network (SONET) standard allows the development of fiber-optic network elements that enable many advanced network capabilities, including cost-effective drop and insert (or add/drop), complete performance monitoring of both facilities and payloads, and remote provisioning and maintenance through high-capacity embedded operations channels carried in the SONET overhead. These advanced capabilities are accompanied by the need for intelligent network management to effectively utilize all the advantages that SONET brings to the telecommunications network. The management functions required by SONET networks, the benefit to the network of those functions, the varied network management environments that exist for SONET, and the network management architecture being deployed for SONET are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

NETMATE: A network management environment

A description is given of the Network Management Analysis and Testing Environment (NETMATE) project, the prime goal of which is to develop a unified and comprehensive software environment for network management to oversee and orchestrate the operations of diverse devices and protocols in large, heterogeneous computer networks. The overall NETMATE architecture is discussed, and the network management functions performed by each component are described. The problem of network modeling and the NETMATE approach to it are presented. The current implementation status of NETMATE is given, and some conclusions are offered. >

Integrated network management in an enterprise environment

Various aspects of integrated network management for business enterprises are discussed. Two categories of communications resources are considered: those that provide interfacility networking, such as circuit-switching or packet-switching telecommunications networks, and those that provide intrafacility networking, such as some form of local area network. The topics covered include: the network management environment within an enterprise; network management elements; the requirements for enterprise network management; a basic architecture for integrated network management; value-added services that expert system modules can provide; current approaches; and possible migration strategies for achieving integrated network management.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>