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R&D 
 

Digital GT TV

In the 2005-2006 stage, GT-TV developed a platform that facilitates access to user of heterogeneous characteristics to content of TV channel distributed over the Internet, by using an IPTV infrastructure. Channel inclusion and broadcasting support has been included in developed platform. Broadcasting uses the GT-VD (Digital Video Workgroup)-developed infrastructure developed in its second phase. EPG application is made available in two versions: a Web to be used from a compatible Web browser (supported by several platforms) and an Xlet, to be used from a set-top box connected to the Internet via a network interface and connected to at TV set. The intention now, in the second Digital GT TV phase, is that the infrastructure developed in conjunction with applications will be used for broadcasting channels in RNP interest and of its partner institutions, creating the RNP (RTD RNP). Digital Television Network The creation of an RNP television channel, TV RNP is predicted, with contents produced and chosen by RNP itself, by using broadcasting infrastructure of Brazilian Association of University TVs (ABTU) channels, in natural integration with the University Exchange Television Network (Ritu).

Coordinator: Guido Lemos de Souza Filho (UFPB)

Wireless broadband university access Mesh Network GT

The Mesh Network project GT is intended to provide social and digital inclusion by means of Brazilian university communications networks. In the 2005-2006 period, the group developed a wireless mesh router prototype and implemented a broadband network access pilot project near UFF Praia Vermelha campus in (RJ).

In its second stage, the main purpose of the GT is to expand wireless broadband access service already installed near UFF; install two other wireless broadband university access mesh network pilot projects, in the northern and southern regions of the country, near UFPA, UTFPR and PUC-PR institutions; refine the mesh router prototype developed in the first GT phase and mesh network management tools; implement, over the mesh network, services such as IP telephony and providing QoS in the mesh router prototype . The GT further proposes to investigate solutions to allow mesh network users’ mobility, through a mobile IP, and for improving network security, such as for example, using IEEE 802.1x (Port-Based Network Access control) standard and RADIUS authentication servers. Furthermore, in communities close to UFPA and PoP-PA, in Belém, the GT intends to extend mesh network connectivity so as to serve already identified public schools and digital inclusion centers.

Coordinator: Célio Vinicius Neves de Albuquerque (UFF)

Partnerships: UFPA, UTFPR and PUC-PR

Video Management GT

The purpose of this GT is to give continuity to work already started in 2005, which specified and developed a digital media distribution service integration platform in order to support, in standardized manner, RNP media distribution, especially on demand video transmission, fruit of the Digital Video GT work. Developed multimedia service management platform aims to assist media distribution management and monitoring, so as to optimize resources and centralize management actions.

The proposal for the second stage is to implement the video management pilot service in RNP network. Activities for the new state comprise four work lines, Digital Video Network server integration to the management platform, developed prototype refining and optimization; integration with Measurement 2 Workgroup tools/services and Digital Video; and advertising.

Coordinator: Regina Melo Silveira (USP)

Partnerships: GT-VD and GT- Measurements

Measurement GT - phase 2

Measurements 2 GT intends to implement a service-based measurement infrastructure, which makes available, skilled or unskilled network users, access to measurement data referring to several metrics, such as delay, delay variance and bandwidth loss, which serve to diagnose the end-to-end network status and successful execution of their applications. The basis for this infrastructure is the piPEs-BR/GFD environment, which is being developed in harmony with perfSONAR environment, in conjunction with Internet2, ESNet, Géant2, and that also relies on RNP participation with work by this GT.

In addition to the measurement infrastructure, the GT has started developing the ICE (Internet Computer Network Eye) tool, which enables the end user to have a single access environment, in user-friendly manner and giving full transparence over the infrastructure necessary for obtaining performance information. In the Measurement GT – phase 2, it is intended to give continuity to developing the environment in partnership perfSONAR team; made measurement data of interest available to a greater number of users through measurement points (MPs) in the IP network; implement an end-to-end monitoring infrastructure for Eela (E-Infrastructure shared between Europe and Latin America) project pilot between UFRJ and CIEMAT in Spain and integrated offered services by the environment with Video Management GT tools.

Coordinator: José Augusto Suruagy Monteiro (UNIFACS)

Partnerships: UFSC, UFBA, UFF, UFRJ, LNCC, UFRGS, Géant2 and Internet2. In the specific case of monitoring infrastructure for EELA project pilot: Rede Clara, Géant2 and Rede Íris.

GT IEAD – Distance education Infrastructure Workgroup

The GT-IEAD intends to develop a distance education infrastructure in which RNP-connected institutions may choose an auditorium or meeting room and habitually send their video and high quality power point signal through a multicast to thousands of the participants. This feature enables interactivity by means of live questions with video or questions via SMS messages. In technical terms, the purpose of the GT is to create a complete software and hardware environment for high quality interactive multimedia broadcast among RNP network connected institutions.

Coordinator: Valter Roesler (UFRGS)

Partnerships: INMETRO (RS), Centro Universitário LaSalle, Univates, CSP Controle e Automação, E-Trust and PD3

GT VCG - Virtual Community Grid

The proposal of this GT is to build a Computational Grid to aggregate features by adhesion. The project architecture is based on middlewares, such as Globus Toolkit and Condor. Specific services will be built on these middlewares in order to meet project participating community’s needs who will be gathered on a Website, by means of a portal. Major functionalities of this portal are adhesion control, temporary machine and user certificate generation, job submission, computational feature monitoring, customized node security level installation and verification scripts.

Coordinator : Bruno Schulze (LNCC)

Partnerships: UFF, UNICAMP and UFRGS

GT ADReF – Diagnosis Automation and Fault Retrieval

At first, the purpose of the project will be to survey most common and/or most serious faults in RNP network. This first stage also predicts research and survey automated mechanisms for diagnosing identified faults. These diagnosis automation and fault correction mechanisms will be based on management interfaces and protocols supported by equipment used by RNP and its respective management systems.

Next, diagnosis and correction mechanisms surveyed in the first stage will be implemented. To this end, a workflow-based solution is proposed. According to this strategy, each diagnosis or correction mechanism will be implemented as a workflow. These flows will be generated by a component providing management functionalities of these artifacts (such as creation, removal and storage of flows) and that will also be responsible for performing these flows when requested. There will be, therefore, a workflow basis, containing al tests that may be applied on the network. Each one of these tests will be responsible for making a fault diagnosis and, whenever possible, correcting them.

Coordinator: Ronaldo Moreira Salles (IME)

Partnership: Silicon Strategy Consultoria de Software Ltda.