168 research outputs found
On the use of mobility in distributed network management
Information Technology has been under unprecedented
transformations and it is dramatically changing the way
of work inside organizations. Information management
systems must be adequate to cope with the profound
effects of this evolution, which expectations includes the
introduction into the networks of enormous quantities of
different elements. Mobile agent paradigm seems to be,
for many researchers, the right solution to deal with the
pressures of these new demands.
This paper discuss the issues around mobility of code on
network management environments and presents ongoing
work that provides mobility capability to distributed
managers upon recent work of IETF’s Disman working group
A Generic Network and System Management Framework
Networks and distributed systems have formed the basis of an ongoing communications revolution
that has led to the genesis of a wide variety of services. The constantly increasing size and
complexity of these systems does not come without problems. In some organisations, the
deployment of Information Technology has reached a state where the benefits from downsizing and
rightsizing by adding new services are undermined by the effort required to keep the system
running.
Management of networks and distributed systems in general has a straightforward goal: to provide
a productive environment in which work can be performed effectively. The work required for
management should be a small fraction of the total effort. Most IT systems are still managed in an
ad hoc style without any carefully elaborated plan. In such an environment the success of
management decisions depends totally on the qualification and knowledge of the administrator.
The thesis provides an analysis of the state of the art in the area of Network and System
Management and identifies the key requirements that must be addressed for the provisioning of
Integrated Management Services. These include the integration of the different management related
aspects (i.e. integration of heterogeneous Network, System and Service Management).
The thesis then proposes a new framework, INSMware, for the provision of Management Services.
It provides a fundamental basis for the realisation of a new approach to Network and System
Management. It is argued that Management Systems can be derived from a set of pre-fabricated
and reusable Building Blocks that break up the required functionality into a number of separate
entities rather than being developed from scratch. It proposes a high-level logical model in order to
accommodate the range of requirements and environments applicable to Integrated Network and
System Management that can be used as a reference model.
A development methodology is introduced that reflects principles of the proposed approach, and
provides guidelines to structure the analysis, design and implementation phases of a management
system. The INSMware approach can further be combined with the componentware paradigm for
the implementation of the management system. Based on these principles, a prototype for the
management of SNMP systems has been implemented using industry standard middleware
technologies. It is argued that development of a management system based on Componentware
principles can offer a number of benefits. INSMware Components may be re-used and system
solutions will become more modular and thereby easier to construct and maintain
Aplicação de técnicas de inteligência artificial no desenvolvimento de agentes para gerência de redes
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica
A web services based framework for efficient monitoring and event reporting.
Network and Service Management (NSM) is a research discipline with significant research contributions the last 25 years. Despite the numerous standardised solutions that have been proposed for NSM, the quest for an "all encompassing technology" still continues. A new technology introduced lately to address NSM problems is Web Services (WS). Despite the research effort put into WS and their potential for addressing NSM objectives, there are efficiency, interoperability, etc issues that need to be solved before using WS for NSM. This thesis looks at two techniques to increase the efficiency of WS management applications so that the latter can be used for efficient monitoring and event reporting. The first is a query tool we built that can be used for efficient retrieval of management state data close to the devices where they are hosted. The second technique is policies used to delegate a number of tasks from a manager to an agent to make WS-based event reporting systems more efficient. We tested the performance of these mechanisms by incorporating them in a custom monitoring and event reporting framework and supporting systems we have built, against other similar mechanisms (XPath) that have been proposed for the same tasks, as well as previous technologies such as SNMP. Through these tests we have shown that these mechanisms are capable of allowing us to use WS efficiently in various monitoring and event reporting scenarios. Having shown the potential of our techniques we also present the design and implementation challenges for building a GUI tool to support and enhance the above systems with extra capabilities. In summary, we expect that other problems WS face will be solved in the near future, making WS a capable platform for it to be used for NSM
The Telecommunications and Data Acquisition Report
This quarterly publication provides archival reports on developments in programs managed by JPL's Office of Telecommunications and Data Acquisition (TDA). In space communications, radio navigation, radio science, and ground-based radio and radar astronomy, it reports on activities of the Deep Space Network (DSN) in planning, supporting research and technology, implementation, and operations. Also included are standards activity at JPL for space data and information systems and reimbursable DSN work performed for other space agencies through NASA
Definição de um gateway CMIP-SNMP
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro TecnológicoO objetivo principal deste trabalho é permitir a interoperabilidade entre sistemas de gerenciamento de redes que seguem modelos de gerenciamento diferentes. Como os modelos de gerenciamento mais difundidos são os modelos OSI e Internet, é apresentada uma proposta de desenvolvimento de um gateway que possibilite esta integração. Além disso, a Aplicação Gateway definida permite também, que a funcionalidade fornecida pelo modelo de gerenciamento de OSI possa ser aplicada sobre o modelo de gerenciamento Internet
- …