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The following topics are dealt with: self management; security management; infrastructure management; traffic engineering; fault management; and performance management.
On behalf of the Organizing Committee of the 6th IEEE/IFIP Latin American Network Operations and Management Symposium (LANOMS 2009), it is our pleasure to welcome all of you to this premier conference in the field of network and services management. We are especially proud and excited about it because this is the 10th anniversary of this well known conference, which for the first time is held outside...
The locator/identifier separation protocol (LISP) is being considered in the Internet community as an evolutionary path towards future Internet. Routing scalability and enhanced traffic engineering capabilities beyond BGP are major highlights of the proposal. An implementation from Cisco systems is being tested in a global infrastructure named LISP+ALT, while an open source implementation, namely...
The Italica Project is the implementation of an electronic health record system at the Italian Hospital of Buenos Aires. The present work shows the implementation of a medical signal grid repository module and its integration to the Italica Project. We also describe the architecture of that module and explain the design decisions taken for its construction. The integration to the preexisting system...
This work describes the anti-theft security system developed for the XO laptops distributed to all children attending public school in Uruguay. Each laptop checks with a centrally managed and distributed list whether it has been reported stolen; if this is the case, or if it does not perform this checking periodically, the laptop blocks itself. The system is installed and working in more than 220...
Java virtual machines do not provide communication services other than those offered by the underlying operating system (OS). Java sockets are just wrappers for the ones provided by the OS. In this work, we present how we replaced standard OS wrappers with a Java native implementation of most part of the IPv6 protocol stack, building an operational IPv6 implementation. The modified Java virtual machine...
The present paper describes the development of the CardioGrid framework into the Grid infrastructure. The core Grid services; workload management system (WMS), data management system and grid authentication have been implemented. Additionally, a Web-based tool -the CardioGrid portal-has been developed to facilitate the user interaction with the Grid. As a result, the user is able to process the electrocardiogram...
Uruguay is undertaking a countrywide deployment of the One Laptop per Child (OLPC) initiative, named Plan Ceibal. The technical challenges imposed by this project are both the computing infrastructure, involving the XO laptop distribution to every scholar in addition to the maintenance of a distributed server platform, and wireless communication infrastructure. Rural and semi-rural areas were covered...
Management is a critical issue in optical networks. Highly impacting in management, routing in optical networks, is often decoupled into both the path selection and the wavelength assignment problems. In the former, shortest path based approaches are often applied to compute paths. Although such approaches offer advantages in terms of network loading, they are restricted by the fact, that routes are...
During the last years there has been a strong research effort on the autonomic communications and self-management paradigms. This paper builds on previous work by the authors on an architecture that aims to be a complete rule-based, distributed system specially designed and implemented to enable autonomic behavior on very constrained devices, such as domestic wireless routers with resources as low...
A distributed system-level diagnosis algorithm allows the fault-free nodes of a system to diagnose the state of all nodes in the system. Diagnosis has been successfully employed for dependable network fault management. In this paper we present a new hierarchical adaptive distributed system-level diagnosis algorithm, Hi-ADSD with Detours which has latency at most log22N, but requires less tests and...
This paper presents the results obtained in the development of a security mechanism for Web access control based on IEEE 802.11 mobile stations indoor location. The goal of the mechanism is to permit the control of the Web access made by students in an academic environment according to the classroom they are in. The access is controlled by a location server, which dynamically interacts with security...
Denial of service (DoS) attacks are a serious threat to the appropriate operation of services within network domains. In this paper, we propose a system that creates an overlay network to provide intra-domain IP traceback to deal with this threat. The main contribution of our proposal with respect to previous work is its ability to provide partial and progressive deployment of the traceback system...
The address resolution protocol (ARP) is used by computers to map network addresses (IP) to physical addresses (MAC). The protocol has proved to work well under regular circumstances, but it was not designed to cope with malicious hosts. By performing ARP cache poisoning or ARP spoofing attacks, an intruder can impersonate another host (man-in-the-middle attack) and gain access to sensitive information...
Group applications like the audioconference require a minimum level of quality of service for the adequate transmission of voice packets and the improvement of the signaling processes for joining, maintaining and leaving multicast groups. Traditionally, SIP servers have dealed with unicast signaling and have also been supported by IP multicast facilities described within the SDP payload information...
Internet traffic is highly dynamic and difficult to predict in current network scenarios. This makes of traffic engineering (TE) a very challenging task for network management and resources optimization. We study the problem of intradomain routing optimization under this traffic uncertainty. Recent works have proposed robust optimization techniques to tackle the problem, conceiving the robust routing...
This paper describes the RUCA project, the work done on its second phase and preliminary work for the third phase. RUCA is part of the UCA ("Um Computador por Aluno" A Computer per Student) Project, and deals with the technical aspects of it (in contrast to the pedagogical aspects of deploying laptops at schools, covered by UCA). It began as a project to study the mesh network capabilities...
The future generation of computer networks brings us several challenges. Automation is one of the most pursued functionalities for such networks. It means that research around this area goes toward the auto- and self- technologies such as self-management, self-addressing and self-healing. This paper presents a novel approach for self-addressing in dynamic networks. It is a stateful and distributed...
Virtual appliances have emerged as an important concept in systems virtualization. They are conceived as data packages that can be electronically delivered and easily shared and distributed. A virtual appliance usually contains at least an operating system, libraries and tools targeted to provide a specific service on top of a virtual machine monitor. As virtualization technologies are rapidly evolving,...
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