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Quality of Service WG 2

The Quality of Service Working Group 2 (QoS2) is the continuation of the 2002/2003 QoS WG, aimed at ensuring quality of service, especially in interactive service, such as videoconference or IP telephony. The difference of the second phase of this work is in its proposal of greater integration with the IQoM Project, a partnership of Unifacs, UFPR, UFSC, UFRGS and CPqD. The project predicts the definition of metrics, the implantation of an active and passive measuring infrastructure and the implementation of differentiated services.

The second phase of the WG aims at developing pilots of passive measuring with capture boards, of active measuring with the AMP platform, and of active measuring with the OWAMP, besides analyzing the data gathered by Netflow. Its main goal is to implement the end-to-end QoS using the architecture of differentiated services, which implies that all the networks involved in the experiments will have to be configured.

Coordinator: Prof. José Augusto Suruagy Monteiro (Unifacs)

Advanced Voice over IP WG

The aim of the Advanced VoIP-WG is to invest in the improvement and development of tools for the VoIP service developed in 2002/2003 by the VoIP WG. Its final objective is to assemble a complete infrastructure capable of monitoring a large scale VoIP service and automatically identifying flaws and warning about quality loss or deficient operation of the service. In this new phase the WG intends to implant a pilot using the SIP protocol and testing a SIP/H.323 gateway.

Coordinator: Prof. Paulo Henrique Aguiar Rodrigues (UFRJ)

Digital Video WG 2

Giving continuity to the activities of phase I, the Digital Video WG Phase II (VDII) aims at implanting an infrastructure at RNP offering support to applications involving the transmission of live digital video on-demand in an integrated way.

The work of this group will be based on two initiatives already started in phase I: the digital video portal – a site with information for those interested in participating in the activities – and the digital video network – a network, server and equipment infrastructure to give support to experiments involving the capture, retrieval and transmission of live video on demand.

In phase II, the focus of the portal will be on the integration of different implementations of clients and servers. The digital video network, which in phase I connected the PoPs RS, SC, SP, RJ, DF, PE and CE and the universities UFPB, UFRN and UFBA, will be expanded to offer support in an integrated way.

Coordinator: Prof. Guido Lemos de Souza Filho (UFPB)

Directories for Education WG

The Directories for Education WG: authentication and authorization architecture to the Brazilian university (DIR-EDU) was created to research and propose a solution to the use of directories by the education and research institutions associated with RNP. A network of LDAP servers and the production of teaching material and introductory courses about the new tools are among the activities that should be developed.

This WG aims at showing the way to a greater uniformity in the IT infrastructure of Brazilian universities through the use of directories, more precisely, of LDAP directories, since the structure of application authentication and authorization would be easily transportable from a place to another.

Coordinator: Prof. Osvaldo Carvalho – UFMG

Network Configuration WG

The idea of creating the Config-WG started from the need to automate configurations, considering the time spent by the operators in Points of Presence (PoPs) to configure devices. The aim of the Config-WG is to propose a solution to automate the configuration of network devices, especially in relation to QoS, but also to multicast and security.

The final product will be a hierarchical system capable of configuring devices according to network policies, thus permitting the abstraction of the particularities of access to the equipment, which makes the configurations be run almost always in a manual fashion.

Coordinator: Prof. Lisandro Zambenedetti Granville (UFRGS)

Collaborative Computing WG (P2P)

The aim of the P2P WG is to evaluate the benefits of the implantation of support to P2P systems at RNP and in the institutions connected to it, as well as the impact of using such systems in the performance of the network.

P2P systems are hooked systems without centralized control or a hierarchical organization, in which the software that is run in each element (point) is equivalent in functionality. The non-existence of a central server permits the cooperation for the formation of a P2P network without any additional investment in high performance hardware to coordinate it. Besides, P2P networks offer the possibility of aggregating and using the processing and storage capacities that are underutilized in idle machines. The institutions connected to RNP will be able to use this support, for instance, to make educational and research applications available.

Coordinator: Prof. Djamel Sadok (UFPE)

Public key WG

The objective of this WG is to implant an infrastructure of public keys aimed at the university environment.

The public key infrastructure (PKI) is a set of tools and processes for the implementation and operation of a system of digital certificate issuing based on public key cryptography. The contribution of the WG to increase the security and reliability in the transactions between university institutions will have a great range, going beyond the merely technical aspect, and it should have an extremely positive impact in the national university life and in the systems and communication equipment used by RNP. With this WG, RNP hopes to foster the use of the PKI technology in the national academic world. Several isolated initiatives have appeared and their unification will be inevitable so that the use of the technology can be effective. RNP understands that it is important to work in this area to prevent the various individual solutions from diverging too much, imposing a high cost to their future unification.

Coordinator: Prof. Ricardo Custódio (UFSC)