This diploma thesis is about an automation of importing MIB files into MIB database. This work is written for SolarWinds company. The goal is to analyze current process of importing MIB files. Than design changes of existing tools for their use in the automation. Also design new tools, if they are needed. Designed system will be implemented in required programming language with suitable technologies. There will be consultations with responsible person from SolarWinds company during the whole work.

This master’s thesis focuses on the issue of measurement of parameters of network traffic of wired and wireless networks. The first part theoretically describes SNMP protocol and application interface API, that form the basis for acquiring and evaluating data. The next section describes known MIKROTIK platform and software solutions for the alternative possibility of implementing a new feature. The last part closely describes the created application. It is a simple information system, whose task is to get information and evaluate it using the known functions. The conclusion of the work is a few tests of this application, assessing the real operation.

Tato diplomová práce se zabývá možnostmi zjištění stavu všech replik ve FreeIPA infrastruktuře. Na úvod práce jsou vysvětleny důležité pojmy jako FreeIPA, FreeIPA infrastruktura a replika. FreeIPA server se skládá z několika součástí, které budou popsány podrobněji.  Nástroj navržený v této práci využívá SNMP pro sledování stavu služeb běžících na FreeIPA serveru. Nástroj má dvě základní části, kterými jsou konfigurace SNMP agenta a uživatelské rozhraní.

Submitted by FRANCISCO SÉRGIO DOS SANTOS null (fsergio.santos@gmail.com) on 2017-06-23T13:10:13Z No. of bitstreams: 1 TESE_FRANCISCO_SERGIO_DOS_SANTOS.pdf: 6603447 bytes, checksum: a50e5f7ef38c8d0f9877a04d8d72b92e (MD5) / Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-06-23T17:33:38Z (GMT) No. of bitstreams: 1 santos_fs_dr_bot.pdf: 6603447 bytes, checksum: a50e5f7ef38c8d0f9877a04d8d72b92e (MD5) / Made available in DSpace on 2017-06-23T17:33:38Z (GMT). No. of bitstreams: 1 santos_fs_dr_bot.pdf: 6603447 bytes, checksum: a50e5f7ef38c8d0f9877a04d8d72b92e (MD5) Previous issue date: 2017-05-19 / Rede de computadores são elementos fundamentais no processo de comunicação. Esses componentes exigem o acompanhamento constante de suas tarefas e são administrados por sistemas de informações que coletam os dados diariamente, para orientar os analistas de suporte na correção das falhas na infraestrutura e a ferramenta utilizada na gestão de recursos de rede de computadores é o protocolo SNMP. As infraestruturas de geração de energia elétrica também são elementos complexos e necessitam de acompanhamento. São utilizados sistemas de informação que disponibilizam dados para os usuários e responsáveis técnicos para avaliarem o funcionamento e corrigir as possíveis falhas. As redes de computadores e os sistemas de geração distribuídas estão convergindo para o ambiente do usuário, e as ferramentas de gestão são importantes são mecanismos na gestão da produção e consumo de energia elétrica. Assim, este trabalho tem como objetivo desenvolver um sistema de monitoramento on line para sistema de microgeração fotovoltaica utilizando o protocolo de rede de computadores Single Network Management Protocol (SNMP) para realizar a interface de comunicação com as variáveis de medições elétricas e meteorológicas. O desenvolvimento do projeto compõe dois componentes: hardware e software. O software é composto de dois módulos um para ser utilizado na Web, aplicações Desktop para uso em computadores que suportem sistemas operacionais como o Windows, Linux ou Mac e em dispositivos móveis. As funcionalidades programadas são cadastros das informações para o funcionamento do sistema, relatórios e gráficos que disponibilizam as informações ordenadas em vários níveis, diariamente, semanalmente, anualmente. Nos componentes de hardware foram utilizados cinco microcontroladores Atmel AVR, (Arduino) todos ligados à sensores e programados para a leitura de geração e consumo de energia elétrica e variáveis ambientais, como velocidade do vento, radiância solar, temperatura e níveis de chuva no período, e controle do sistema de bombeamento com duas motos bombas. Todos os experimentos foram realizados na central de microgeração distribuída fotovoltaica (MGD-PV) do Sítio Modelo da fazenda Lageado e no Laboratório de Energias Renováveis do Departamento de Engenharia Rural, nas Faculdades de Ciências Agronômicas da UNESP, campus de Botucatu. O laboratório de Energias Renováveis é o Servidor do sistema e as distâncias são muito variáveis entre todos os microcontroladores, de 32 metros a 260 metros e para realizar o processo de coleta dos dados nos diversos pontos e suprir essa distância foi necessário a construção e configuração de uma infraestrutura de comunicação baseada nas tecnologias ZigBee, para conectar os cincos microcontroladores. Os dados são coletados em intervalos regulares de cinco minutos, às variáveis ambientais são acompanhadas vinte e quatro horas por dia e às variáveis de geração de energia elétrica entre sete da manhã e dezessete horas da tarde. Os dados foram coletados entre setembro de 2016 e fevereiro de 2017. Os componentes de hardware e de software apresentaram rendimentos satisfatórios no processamento das informações através da interface criada pelo protocolo SNMP na comunicação e nas transmissões dos dados gerados pelos sensores, na configuração e mapeamento os objetos para construção da MIB para serem utilizados nas medições elétricas e variáveis ambientais. / Computer networks are fundamental elements in the communication process. Such components demand constant supervision of their tasks and are managed by information systems, which daily collect data to guide support analysts when correcting glitches in the infrastructure. Protocol SNMP is the tool used for managing resources of the computer network. The infrastructures of electric energy generation are also complex elements and require monitoring. Information systems are utilized, which provide data to users and technical professionals, so they can evaluate functioning and correct possible errors. Computer networks and systems of distributed generation are converging towards the user’s environment, so, management tools are important mechanisms in the control of production and consumption of electric energy. Thus, this work aims at developing an online monitoring system for photovoltaic microgeneration using the Single Network Management Protocol (SNMP) to perform the communication interface with the variables of electrical and metereological measurements. The project development is composed of two elements: hardware and software. The software consists of two modules: one to be used on the Web, Desktop apps for use in computers that can carry operational systems such as Windows, Linux or Mac and one to be used in mobile devices. Programmed functionalities include information register for the functioning of the system; reports and graphs that show information ordained in several levels, daily, weekly and annually. As to hardware, we used five microcontrolers Atmel AVR, (Arduino) connected to sensors and programmed for reading the production and consumption of electric energy as well as environmental variables, such as wind speed, solar radiance, temperature and rain levels during the period and control of the pumping system with two motor pumps. All experiments were carried out at the Distributed Photovoltaic Microgeneration Central (MGD-PV) on a Model Farm and at the Renewable Energies Laboratory of the Agronomy College at UNESP, in Botucatu. The Renewable Energies Laboratory is the server of the system and the distances among all microcontrolers vary from 32 to 260 meters. Therefore, in order to collect data from several locations and neutralize such distance, we needed to build and configure a communication infrastructure based on ZigBee technologies to connect the five microcontrolers. Data are collected during five-minute intervals; environmental variables are followed twenty four hours a day and the variables of electric energy production between 7am and 5pm. Data were collected between September 2016 and February 2017. Hardware and software components showed satisfactory performance at processing information through the interface created by the SNMP protocol regarding communication and transmission of the data generated by sensors as well as on the configuration and mapping objects for the construction of the MIB to be used in electrical measurements and environmental variables.

Multi Protocol Label Switching (MPLS) är en routingteknik som blir allt vanligare i dagens nätverk. Vid implementation av MPLS i nätverk är det grundläggande att hårdvaran har tillräckligt hög prestanda för att hantera tekniken. Om så inte är fallet kan det leda till negativa konsekvenser såsom paketförluster eller i värsta fall att routern havererar. Syftet med arbetet var att ta reda på hur processorbelastningen på en router skiljer sig när MPLS var implementerat jämfört med traditionell IP-routing. Routingprotokollen BGP, OSPF och RIP användes tillsammans med de olika routingteknikerna för att se vilket av dessa som krävde minst processorkraft. För att ta reda på hur processorbelastningen påverkades skapades en experimentmiljö. Varje routingprotokoll konfigurerades tillsammans med MPLS respektive traditionell IP-routing, vilket gav oss sex olika scenarion. Trafik skickades sedan genom nätverket med hjälp av applikationen Ostinato för att belasta enheterna. Resultatet av testerna visade att processorbelastningen blev högre för MPLS än för traditionell IP-routing. Det gällde för samtliga routingprotokoll. Det routingprotokoll som tillsammans med MPLS lyckades hålla processorbealstningen lägst var BGP, medans OSPF orsakade högst processorbelastning. Skillnaden mellan routingprotokollen OSPF och RIP var marginell. / Multi Protocol Label Switching (MPLS) is a growing routing technology. It is getting more common in today’s modern networks. When implementing MPLS, it is essential that the hardware is capable of handling such technology. If not, this could lead to packet loss or even network outage. The purpose of this study was to examine differences between MPLS and traditional IP-routing in aspect of CPU utilization. Routing protocols BGP, OSPF and RIP were configured together with the technologies in order to see which of the mentioned routing protocols that was the most efficient in terms of CPU utilization. An environment was created for the experiment. Each routing protocol was configured together with MPLS and traditional IP-routing respectively, which lead to a total of six scenarios. Traffic was sent through the network with an application called Ostinato with the purpose of increasing the load of the devices. The results showed higher CPU utilization with MPLS compared to traditional IP-routing. This was the case with each routing protocol. BGP had the lowest CPU utilization of the routing protocols in conjunction with MPLS whilst OSPF had the highest. The result between OSPF and RIP was slightly different.

This work has been done as an assignment from CGI with the ambition to find an opensource program that provides both network monitoring and performance testing. Theprogram should be able to run on a portable server or other machine, to allow for datagathering of one network one day and of another network the next day. Due to the currentstate of society all work is done *remotely*, restricting tests to only be performed onsmaller private networks. Much time is put into research to find the programs that intheory would work for the purpose. It's quickly revealed that with open source as ademand, a single program is not an option, thus the search is expanded. Tests areperformed where the programs are graded by useability and functions that facilitateredeployment of the server between network sites. The results for network monitoring arethe programs OpenNMS Horizon and NetXMS, which both lived up to the demands. Theprogram chosen for performance testing is Flent, which among others combines Iperf andNetperf in its tests and presents the results in graphs.The limited time affected ouropportunities to test all the programs we came across and the current pandemic limitedour opportunities to test our chosen programs to a greater extent.The goal of finding onesolution was not accomplished and instead resulted in two separate pieces of software.These are found to accomplish their respective goals.

Made available in DSpace on 2016-04-04T18:31:17Z (GMT). No. of bitstreams: 1 Carlos Roberto Schimidt.pdf: 1673709 bytes, checksum: bfff1e1a4d903d3af1ffd35db6413138 (MD5) Previous issue date: 2007-02-08 / Optical wavelength converters (OWC) are devices that can reduce congestion and improve the efficiency of the next generation of wavelength division multiplexing (WDM) optical networks. Currently, our research group is developing a prototype of this converter in the Kyatera Project funded by Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo (FAPESP). In this perspective, the objective of this work was to implement an open source software to dynamically manage the wavelength converter prototype in an all optical network. This task was performed in two phases. In the first one, the Telecommunications Management Network (TMN) functionalities were utilized to define the device parameters that should be managed. After this, a management information base (MIB) was structured for the OWC. In the second phase, a SNMP agent was developed and implemented in order to allow the communication between network management and the OWC MIB. Both software programs were tested and worked as expected. The software programs could also be utilized in the communication between a central management and optical nodes that do not perform wavelength conversions or after some adjustments, to manage other all-optical devices. Therefore, this effort may contribute with other research groups or companies that need to evaluate new optical network technologies, such as routing wavelength assignment algorithms and the monitoring of signal quality. For those interested, an appendix fully describes the procedures for managing new devices. / Conversores ?pticos de comprimento de onda s?o equipamentos que podem reduzir o congestionamento e aumentar a efici?ncia da pr?xima gera??o de redes ?pticas com multiplexa??o por divis?o em comprimentos de onda (wavelength division multiplexing, WDM). Atualmente, nosso grupo de pesquisas est? desenvolvendo um prot?tipo deste conversor dentro do Projeto KyaTera promovido pela Funda??o de Amparo ? Pesquisa do Estado de S?o Paulo (FAPESP). Neste contexto, o objetivo deste trabalho foi o de implementar um software de c?digo aberto capaz de gerenciar, de maneira din?mica, a opera??o do conversor em uma rede totalmente ?ptica. Para isso, o trabalho foi dividido em duas etapas. Na primeira, as fun??es de gerenciamento do modelo Telecommunications Management Network (TMN) foram utilizadas para definir os par?metros de gerenciamento do equipamento. A partir destas defini??es, estruturou-se e implementou-se uma Management Information Base (MIB) para o referido equipamento. A segunda etapa consistiu em desenvolver e implementar um agente Simple Network Management Protocol (SNMP) capaz de realizar a comunica??o entre a ger?ncia de redes e a MIB do equipamento conversor. Ambos os softwares foram testados e funcionaram de acordo com o esperado. O software desenvolvido tamb?m pode ser utilizado para realizar a comunica??o entre uma ger?ncia centralizada e n?s ?pticos que n?o fa?am a convers?o de comprimentos de onda ou, mediante pequenas adapta??es, pode ser usado para gerenciar outros equipamentos de redes totalmente ?pticas. Por essas raz?es, o trabalho pode ser ?til para outros grupos de pesquisa ou para empresas que necessitem avaliar novas tecnologias em redes ?pticas, como a implementa??o de algoritmos de aloca??o de comprimentos de onda ou de estrat?gias para a monitora??o da qualidade de sinais. Com o intuito de auxiliar o trabalho de outros grupos que precisem realizar a ger?ncia de equipamentos, um ap?ndice dessa disserta??o tamb?m apresenta uma descri??o detalhada dos procedimentos (nem sempre explicitamente indicados na literatura) necess?rios para atingir esse objetivo.

Made available in DSpace on 2016-04-04T18:31:32Z (GMT). No. of bitstreams: 1 Frederico Silveira Cyriaco.pdf: 3302714 bytes, checksum: 964c5126f1a1cc104fbe1bb7b7a546d9 (MD5) Previous issue date: 2012-02-06 / This dissertation aims to propose an approach for remote management of wireless sensor networks. For that was inserted in the context of sensor networks the Proxy type element, responsible for interconnect two different networks, while maintaining the ability to communicate between these two networks, as well as the adaptation of communication protocols. In this case, the Proxy networks which interconnects the networks of wireless sensors and IP. The management protocol used on the side of the IP network is SNMP, Single Network Management Protocol, as a network management protocol stable, open source and widely disseminated and used in network environments. In order to combine the functionality via SNMP management with a network of wireless sensors was performed engineering MIB, Management Information Base, creating a correspondence between the characteristics of wireless sensor network configuration and functionality, performance and failure, present in a classical network management. With this MIB was possible to build a prototype as a proof of concept to demonstrate these features. / A presente disserta??o tem como objetivo propor uma abordagem para a ger?ncia remota de redes de sensores sem fio. Para isso, foi inserido no contexto de redes sensores o elemento do tipo Proxy, respons?vel por interconectar duas redes distintas, mantendo a capacidade de comunica??o entre estas duas redes, assim como a adapta??o de protocolos de comunica??o. Neste caso, as redes as quais o Proxy se conecta s?o as redes de sensores sem fio e IP. O protocolo de ger?ncia utilizado do lado da rede IP foi o SNMP, Single Network Management Protocol, por ser um protocolo de ger?ncia de redes est?vel, de c?digo aberto e amplamente utilizado e disseminado em ambientes de rede. Com o objetivo de se combinar as funcionalidades de ger?ncia via SNMP com uma rede de sensores sem fio, foi realizada a engenharia da MIB, Management Information Base, criando-se uma correspond?ncia entre caracter?sticas da rede de sensores sem fio e as funcionalidades de configura??o, desempenho e falha, presentes em uma rede de ger?ncia cl?ssica. Com esta MIB foi poss?vel elaborar um prot?tipo, a t?tulo de prova de conceito, para a demonstra??o destas funcionalidades.

Made available in DSpace on 2016-04-04T18:31:42Z (GMT). No. of bitstreams: 1 John F L Madeira.pdf: 1208031 bytes, checksum: cacbe507cfeea663dc6feac02f58faa7 (MD5) Previous issue date: 2013-06-21 / This paper presents an approach to management of wireless sensor network (WSN) with the use of the Simple Network Management Protocol (SNMP). In this proposal, was implemented a new element called SNMP Proxy Gateway (SPG) that has aimed to make the interconnection of management without the need for modification or adaptation of the stack TCP/IP protocols. Thus, a new implementation based in hardware and software were deployed to make the transition of SNMP PDUs for WSN. A set of experiments were made in laboratory to test and validate the proposed results. / Este trabalho apresenta uma abordagem para ger?ncia de rede sensores sem fio (RSSF) com utiliza??o do Simple Network Management Protocol (SNMP). Nesta proposta, foi introduzido elemento chamado SNMP Proxy Gateway (SPG) que tem objetivo de fazer a interconex?o das arquiteturas de rede para ger?ncia sem a necessidade de altera??o ou adapta??o da pilha de protocolos TCP/IP. Para isso, foi implementado prot?tipo de ger?ncia da rede atrav?s de um conjunto hardware e software com fun??o de fazer a transcri??o dos PDUs do SNMP para a RSSF. Um conjunto de experimentos foram executados em laborat?rio com objetivo de testar a proposta e validar os resultados obtidos.

Made available in DSpace on 2016-04-04T18:31:46Z (GMT). No. of bitstreams: 1 Leandro Filiagi Machado.pdf: 5882687 bytes, checksum: be6f1f6830e339317c23060e0e5453e3 (MD5) Previous issue date: 2015-12-18 / With the advancement of Urban Intelligence and Smart Cities, the importance of remote monitoring and data collection increased. Regarding the monitoring data, the IP Proxy is an important platform for the realization of interconnection between the sensors and the Internet. In recent literature, several gateway architectures for network sensors have been proposed to integrate Wireless Sensor Network (WSN) and Internet. Most WSN gateways implementations retrieve sensor data and display the results to customers via the web. The disadvantage of these solutions is that they use specific protocols to connect the sensors, thereby prohibiting direct interaction between clients and sensor nodes. Optionally, the adoption of sensors for SNMP management has the potential to reduce the complexity of the gateway. For this reason, this paper presents the design and implementation of an open platform and low cost with the use and modification of a non-commercial wireless router with serial connection to communicate with the sensors, which are connected to an Arduino Nano microcontroller. The results showed that applications of the IP Proxy can successfully connect multiple sensors and the Internet, where data can be transmitted all over the world via the Ethernet or WLAN. / Com o avan?o da intelig?ncia Urbana e as Cidades Inteligentes, a import?ncia do monitoramento remoto e coleta de dados aumentou. Em rela??o ao monitoramento de dados, o ProxyIP ? umaplataforma importante para a realiza??oda interconex?o entre os sensores e a Internet. Na literatura recente, v?rias arquiteturas de gateway para sensores de rede t?m sido propostas para integrar Rede de Sensores sem Fio (RSSF) e Internet. A maioria das implementa??es de gateways de RSSF recuperam dados de sensores e exibem os resultados para os clientes via web. A desvantagem dessas solu??es ? que eles usam protocolos espec?ficos para ligar os sensores, proibindo assim a intera??o direta entre clientes e n?s sensores. Como op??o, a ado??o do protocolo SNMP para gerenciamento de sensores tem o potencial para reduzir a complexidade do gateway. Por esta raz?o, este trabalho apresenta a concep??o e implementa??o de uma plataforma aberta e de baixo custo com o uso e modifica??o de um roteador sem fio comercial, com conex?o serial para se comunicar com os sensores, que s?o ligado a um microcontrolador Arduino Nano. Os resultados das aplica??es mostraram que o Proxy IP pode interligar com ?xito multiplos sensores e a Internet, onde os dados podem ser transmitidos em todo o mundo atrav?s da Ethernet ou WLAN.