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[en] CATV / GIGABIT ETHERNET / DWDM : NEW TECHNICAL AND ECONOMIC ALTERMATIVES TO THE LAST MILE / [pt] CATV/GIGABIT ETHERNET/DWDM: NOVAS ALTERNATIVAS TÉCNICAS E ECONÔMICAS PARA A ÚLTIMA MILHA13 August 2002 (has links)
[pt] CATV / Gigabit Ethernet / DWDM : Novas Alternativas
Técnicas e Econômicas para a Última Milha tem como objetivo
descrever a ativação de novas funcionalidades de uma rede
de distribuição de CATV associada à distribuição de dados
em faixa larga. A utilização da tecnologia DWDM no domínio
óptico, associada a novas topologias de distribuição em
cabo coaxial e ao padrão Gigabit Ethernet, permite a
obtenção de uma nova concepção em rede de telecomunicações,
onde os serviços tradicionais de distribuição analógica são
inteiramente preservados. As vantagens desta solução
residem na obtenção de uma rede de muito alta velocidade,
ideal para aplicações Internet de segunda geração e em um
dramático aumento do retorno econômico nas redes CATV já
instaladas. / [en] CATV / Gigabit Ethernet / DWDM : New Technical and Economic
Altermatives to the Last Mile is aiming at describing the
activation of a new family of functionalities applicable to
a CATV distribution network together with a delivery of
broadband data. Optical domain DWDM technology is used,
associated with new coaxial cable distribution topologies
and the Gigabit Ethernet standard, allowing for a new
telecommunications network concept, where the traditional
analogical distribution services are totally preserved. The
above proposed solution presents two advantages. The first
is such that a very high-speed data network becomes
available. This last, is an ideal outfit for second
generation Internet. The second advantage is that the
obtained data network provides for economic revenues by far
greater than those of the traditional CATV networks.
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Gigabit-Übertragung mit VielmodenfasernBunge, Christian-Alexander. Unknown Date (has links) (PDF)
Techn. Universiẗat, Diss., 2003--Berlin.
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A Meta Analysis of Gigabit Ethernet over Copper Solutions for Cluster-NetworkingHoefler, Torsten, Rehm, Wolfgang 28 June 2005 (has links) (PDF)
The IEEE Standard for Gigabit Networking was accepted in June 1998 and ratified as IEEE 802.3z. This standard uses considers an optical cable for signal transmission. One year later a new standard for Gigabit Ethernet over unshielded twisted pair of the 5th category was certified under the name 802.3ab. Nowadays, there are a couple of younger and older studies about Gigabit Ethernet technology and performance. This Meta Analysis is intended to put the main results altogether into one document suitable for a proper choice of gigabit networking equipment for cluster computers.
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[en] GENERATION OF BUILT-IN OPTICAL INTELIGENCE ON ETHERNET / IP NETWORKS / [pt] GERAÇÃO DE INTELIGÊNCIA ÓPTICA EM REDES ETHERNET / IPHENRIQUE JOSE PINTO PORTELA DA SILVA 06 July 2005 (has links)
[pt] O principal objetivo desta dissertação consiste na geração
de novas
funcionalidades inteligentes em redes ópticas associadas
aos protocolos IP e
Gigabit Ethernet, através da utilização de circuitos
integrados programáveis
operando na taxa do Gigabit. A padronização Ethernet é
apresentada através
das camadas PHY e MAC, destacando suas funções, interfaces
e os tipos de
chips disponíveis no mercado. A camada PHY do padrão
Ethernet para meios
ópticos é detalhada. Algumas tecnologias de chips são
discutidas, entre elas o
crescimento dedicado, os ASICs, as NPUs e as tecnologias
programáveis:
FPGAs e CPLDs. O conceito de inteligência óptica e o perfil
de camadas
equivalentes associados a este conceito são introduzidos.
Um novo elemento de
rede dedicado à inserção de sinalização na camada óptica é
apresentado,
destacando-se sua estrutura, sua realização, seu
detalhamento para utilização
em redes. Diversas montagens experimentais com o elemento
desenvolvido são
utilizadas para demonstrar as características do sistema,
entre elas a eficiência
da utilização da tecnologia de FPGAs e a transparência da
inteligência na
camada óptica para o padrão Ethernet. / [en] The main objective of this work is the generation of new
functionalities in
optical networks, associated to the Ethernet and IP
protocols, by the use of
programmable integrated circuits operating in Gigabit
rates. The Ethernet
standard is presented through its PHY and MAC layers,
highlighting its functions,
interfaces and the types of commercially available ICs. The
Ethernet standard
PHY layer for optical media is described. Some IC
technologies are discussed,
such as dedicated growth, ASICs, NPUs and the programmable
technologies:
FPGAs e CPLDs. The concept of built-in optical intelligence
and a new layers
model associated to it are presented. A new network
element, dedicated to the
insertion of signaling in the optical layer is also
presented, and special attention is
dedicated to its structure, to its implementation and to
the aspects of its use in
networks. Several experimental setups using the developed
element are shown,
demonstrating the characteristics of the system,
particularly the efficiency
obtained by the use of FPGA technology and the transparency
of the optical
intelligence with respect to the Ethernet standard.
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[en] NEW NETWORK SOLUTIONS AND NEXT GENERATION ENTERTAINMENT SERVICES / [pt] NOVAS SOLUÇÕES DE REDES E SERVIÇOS DE ENTRETENIMENTO DE ÚLTIMA GERAÇÃOCARLOS ALBERTO GAROFALO 28 December 2005 (has links)
[pt] O principal objetivo desta dissertação consiste na
proposta de
implementação de uma rede de telecomunicações utilizando
novas tecnologias,
enfatizando as aplicações de entretenimento. As soluções
adotadas foram
orientadas pelas características econômicas verificadas
nas áreas nobres das
regiões metropolitanas brasileiras e também pelas novas
tecnologias de
roteamento, chaveamento, armazenamento e distribuição
local. A avaliação do
custo de investimento e operacional da rede, bem como a
formulação de um
modelo de negócios associado a uma estrutura de serviços
oferecidos foram
apresentadas e desenvolvidas. A construção de um plano de
negócio hipotético
para avaliar a relação custo-benefício resultante da
utilização da infra-estrutura da
rede proposta associado ao modelo e estrutura dos serviços
elaborados foi
implementado e executado. Quatro alternativas de
implementação de rede foram
avaliadas. / [en] The present dissertation is aiming at proposing a
telecommunications
network implementation using some new technologies where
the emphasis is put
on entertainment applications. The adopted solutions try
to offer a selection grid
that qualitatively cope with the economic level of some
selected noble
metropolitan areas in Brazil and rely in new routing,
switching storage and local
distribution technologies. The investment evaluation, the
operational network
costs and the formulation of a business model associated
with the respective used
service structure is subsequently introduced and
described. Next, a hypothetic
business plan service model is launched in order to
evaluate the cost-benefit ratio
between the network infrastructure proposed working
together with its new
service model and its new structure. Four possible
alternatives of network
implementation were evaluated and commented.
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Optimizing Point-to-Point Ethernet Cluster CommunicationReinhardt, Mirko 01 March 2006 (has links) (PDF)
This work covers the implementation of a raw Ethernet communication module
for the Open MPI message passing library. Thereby it focuses on both the reduction of the
communication latency for small messages and maximum possible compatibility.
Especially the need for particular network devices, adapted network device drivers or
kernel patches is avoided. The work is divided into three major parts: First, the
networking subsystem of the version 2.6 Linux kernel is analyzed. Second, an Ethernet
protocol family is implemented as a loadable kernel module, consisting of a basic
datagram protocol (EDP), providing connection-less and unreliable datagram transport,
and a streaming protocol (ESP), providing connection-oriented, sequenced and reliable
byte streams. The protocols use the standard device driver interface of the Linux kernel
for data transmission and reception. Their services are made available to user-space
applications through the standard socket interface. Last, the existing Open MPI TCP
communication module is ported atop the ESP. With bare EDP/ESP sockets a message
latency of about 30 us could be achieved for small messages, which compared to the
TCP latency of about 40 us is a reduction of 25 %.
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Network Traffic Simulation and Generation / Network Traffic Simulation and GenerationMatoušek, Jiří January 2011 (has links)
Development of computer networks able to operate at the speed of 10 Gb/s imposes new requirements on newly developed network devices and also on a process of their testing. Such devices are tested by replaying synthetic or previously captured network traffic on an input link of the tested device. We must be able to perform both tasks also at full wire speed. Current testing devices are either not able to operate at the speed of 10 Gb/s or they are too expensive. Therefore, the aim of this thesis is to design and implement a hardware accelerated application able to generate and replay network traffic at the speed of 10 Gb/s. The application is accelerated in the FPGA of the COMBOv2 card and it also utilizes the NetCOPE platform. Architecture of the application is modular, which allows easy implementation of different modes of operation. The application implements both capturing and replaying network traffic at full wire speed, but traffic can be limited to a specified value of bitrate at the output. The thesis is concluded by a comparison of the implemented application and the packet generator implemented on the NetFPGA platform. According to this comparison, the implemented application is better than the NetFPGA packet generator.
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Zefektivnění analýzy počítačové sítě 10Gbit/s / Perfecting the analysis of 10Gbit/s computer networkŤápal, Tomáš January 2013 (has links)
The master’s thesis consists of several parts. Describes the technology 10 Gbps Ethernet. Analyzer Ixia and Endace presents, especially their use for traffic analysis and stress testing the network devices. It deals with documents RFC concerning the routers and switch testing. Thesis includes the reports of tests switches and router performed by RFC 2544 and RFC 2889 documents. Part of the thesis is dedicated to COMBO FPGA cards. Documentations to the analyzers is created in this thesis and macro is on the CD for presentation of measurement results.
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Vícekanálový převodník digitálního videosignálu HD-SDI / Multichannel HD-SDI digital video signal converterKučera, Stanislav January 2014 (has links)
This master’s thesis deals with the design of six channel SD, HD and 3G HD-SDI digital video signal converter to 10-Gigabit Ethernet. In the introductory part, the conception of designed device is formulated. The theoretical background is provided in four chapters, where main standards and design rules related to digital electronics’ design are analyzed. The emphasis is placed on signal integrity at high-speed interconnects. There mostly practical examples, calculations and simulations are utilized. The design part contains thorough description of main subsystems’ design, implementation of FPGA, SDI input channels and 10-Gigabit Ethernet PHY. In the final part, the first tests and measurements of the build prototype are summarized. As an example, the comparison of signal integrity simulation to measurement is provided.
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A Meta Analysis of Gigabit Ethernet over Copper Solutions for Cluster-NetworkingHoefler, Torsten, Rehm, Wolfgang 28 June 2005 (has links)
The IEEE Standard for Gigabit Networking was accepted in June 1998 and ratified as IEEE 802.3z. This standard uses considers an optical cable for signal transmission. One year later a new standard for Gigabit Ethernet over unshielded twisted pair of the 5th category was certified under the name 802.3ab. Nowadays, there are a couple of younger and older studies about Gigabit Ethernet technology and performance. This Meta Analysis is intended to put the main results altogether into one document suitable for a proper choice of gigabit networking equipment for cluster computers.
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