Magnos Martinello

Magnos Martinello
Universidade Federal do Espírito Santo | UFES · Departamento de Informática

Ph.D.

About

97
Publications
12,499
Reads
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561
Citations
Additional affiliations
December 2008 - present
Universidade Federal do Espírito Santo
Position
  • Professor (Associate)
September 2001 - December 2005

Publications

Publications (97)
Preprint
The paper is under final review on IEEE Transaction on Network and Service Management. Innovative traffic engineering functions and services require disrupting routing and forwarding mechanisms to be performed with low overhead over complex network topologies. Source routing (SR) is a prominent alternative to table-based routing for providing the...
Preprint
The paper is under final review on IEEE Transaction on Network and Service Management. Innovative traffic engineering functions and services require disrupting routing and forwarding mechanisms to be performed with low overhead over complex network topologies. Source routing (SR) is a prominent alternative to table-based routing for providing the...
Preprint
The paper is under final review on IEEE Transaction on Network and Service Management. Innovative traffic engineering functions and services require disrupting routing and forwarding mechanisms to be performed with low overhead over complex network topologies. Source routing (SR) is a prominent alternative to table-based routing for providing the...
Article
Current Service Function Chaining (SFC) architectures are tailor-made for specific environments and platforms, often relying on SFC support on network devices or specialized frameworkson specialized or modified network devices, either in software or in hardware. Thus, the service plane and the data plane are tightly coupled, id=r2which hindershinde...
Conference Paper
A Rede Ipê é fundamental para a comunidade científica brasileira por interconectar universidades e centros de pesquisa de todo o país. Este artigo analisa algumas características da Rede Ipê e explora o uso de técnicas de aprendizado de máquina para predição de falhas em serviços de conectividade usando dados públicos disponibilizados pela ferrament...
Article
Full-text available
This paper proposes a new scalable service-oriented architecture based on Open Service Gateway Initiative (OSGI) technology. A key part of this architecture is its SIP application as a service (SIP-AS). It relies on IMS core network supported by multi agents components implemented using Java Agent DEvelopment (JADE) platform. As a proof of concept,...
Conference Paper
O Wi-fi Publico e o Wi-Fi comunitário se mostram como ótimas opções para promover novas adesões e retenção de clientes dentro dos provedores de internet. Os roteadores Wi-Fi residenciais oferecem uma excelente infraestrutura com um grande número de pequenas células de alta capacidade, baixo alcance e alta densidade, principalmente em ambientes urba...
Conference Paper
Provedores de rede precisam oferecer uma grande variedade de serviços a seus clientes. A virtualização de funções de rede e redes definidas por software facilitam a implementação desses serviços por meio da virtualização e do encadeamento de funções de rede. Entretanto, há casos em que essas funções encontram-se em \textit{data centers} distantes g...
Conference Paper
Edge computing transfers processing power from large remote data centers (DCs) to distributed DCs at the edge of the network. This shift requires the ability to provide network functions virtualization (NFV) solutions that can efficiently manage and combine a large number of dynamic services in a resource-constrained DC. However, the routing mechan...
Article
5G relies on its pervasive and convergent cloud-based architecture to accomplish its futuristic challenge of being the next-generation communication platform. However, the new perspectives opened by 5G networks do not go unnoticed. Regardless of their motivation or objectives, cyberattackers find in the new 5G ecosystem, including its tenancy-drive...
Article
To ensure the quality of service of an end-to-end connection, current network solutions are mostly dependable on the differentiation between different classes of traffic. The Software-defined networking (SDN) architecture has emerged to offer network programmability, giving to network operators a programmatic control over their network. In SDN, net...
Conference Paper
Full-text available
Network Function Virtualization (NFV) ambitiously aims at shifting functionalities from proprietary hardware to commodity servers as well as providing a common platform for the consolidation of network management. In practice, however, network architects have not massively subscribed to NFV so far. One possible reason for the slow adoption of NFV i...
Conference Paper
Due to its ubiquitous use, WiFi may play an essentialrole in providing indoor connectivity for the new real-timeservices in several 5G verticals. However, there are still pressingissues to be addressed, requiring new mobility managementschemes to guarantee reliable and low latency communications.In this paper, we propose a novel SDN-NFV based archi...
Conference Paper
This paper presents an analytical modeling to KAR (Key-for-Any-Route), an intra-domain resilient routing system in which edge-nodes set a route ID to select any existing route as an alternative to safely forward packets to their destination. KAR-enabled switches explore the existing routes by using special properties of Residue Number System as enc...
Article
Full-text available
Real‐time and mission‐critical applications for Industry 4.0 demand fast and reliable communication. Therefore, knowing devices' location is essential, but GPS is of little use indoors, whereas electromagnetic impairments and interferences demand new approaches to ensure reliability. The challenges include real‐time feedback with end‐to‐end (E2E) l...
Article
Current service function chaining (SFC) solutions are cumbersome adaptations of classic routing mechanisms, which lack flexibility and agility to cope with new dynamic services required by network functions virtualization (NFV). These SFC solutions require modification of forwarding tables in both physical and virtual elements in the path when upda...
Article
Full-text available
Large-scale testing and evaluation of network solutions are complex and typically involve multiple domains (e.g., optical, wireless, and cloud). The FUTEBOL project has deployed geographically distributed testbeds in Brazil and Europe that enable the experimentation and validation of new cross-domain network solutions. In this article, we introduce...
Conference Paper
Datacenter (DC) design has been moved towards the edge computing paradigm motivated by the need of bringing cloud resources closer to end users. However, the Software Defined Networking (SDN) architecture offers no clue to the design of Micro Datacenters (MDC) for meeting complex and stringent requirements from next generation 5G networks. This is...
Conference Paper
As redes de Data Center, que precisam atender de forma dinâmica uma grande quantidade de fluxos com diferentes requisitos de serviço, necessitam de mecanismos de balanceamento de carga. Entretanto, as abordagens tradicionais de balanceamento de carga não permitem a completa utilização dos recursos de rede de forma simples, programável e escalável....
Preprint
Data center networks need load balancing mechanisms to dynamically serve a large number of flows with different service requirements. However, traditional load-balancing approaches do not allow the full utilization of network resources in a simple, programmable, and scalable way. In this context, this paper proposes RDNA Balance that exploits eleph...
Conference Paper
One of the main challenges in network functions virtualization (NFV) is how to dynamically steer traffic flows through a set of service functions (SFs). Fig. 1(a) shows the embedding of a service function chaining (SFC) request in a NFV Infrastructure (NFVI). The overlay layer represents logical connections between virtual machines (VMs), while the...
Article
Full-text available
At the verge of the launch of the first commercial fifth generation (5G) system, trends in wireless and optical networks are proceeding toward increasingly dense deployments, supporting resilient interconnection for applications that carry higher and higher capacity and tighter latency requirements. These developments put increasing pressure on net...
Article
Datacenter (DC) design has been moved towards the edge computing paradigm motivated by the need of bringing cloud resources closer to end users. However, the Software Defined Networking (SDN) architecture offers no clue to the design of Micro Datacenters (MDC) for meeting complex and stringent requirements from next generation 5G networks. This is...
Conference Paper
Wireless networks have become in the last years a key enabling technology for cloud-enabled robots. Among those, the usage of WiFi is a first choice due to its almost ubiquitous use nowadays. However, WiFi suffers from crucial issues like spectrum interference, connectivity losses, long delay for client association and high latency handover. This w...
Conference Paper
Full-text available
Abstract—Data analytics and scientific computing are two modern applications that in recent years have substantially changed their computation and communication needs, requiring additional processing capability and bandwidth to be able to keep pace with current demands. These applications are commonly processed within data centers, exchanging enorm...
Conference Paper
The denial of service (DoS) or its distributed form (DDoS) attacks are among the most important business impacts nowadays, affecting service availability severely. Application Layer Denial of Service attacks exploit vulnerabilities in protocols and the main challenge in mitigating such attacks is due to the fact that attacker requests have the same...
Conference Paper
Full-text available
An open platform over OpenStack for control and management of experiments (O2CMF) for merging and adapting wireless and optical federated testbeds with proper cloud infrastructure is presented. TOSCA-enabled orchestration provides programmability for NFV experiments.
Article
Emerging paradigms, such as Edge Computing, require the geographical distribution of small-scale data centers that will use Network Functions Virtualization (NFV) to provide new services with stringent demands related to throughput, latency, cost, innovation, and efficient orchestration. To tackle these demands, this paper proposes VirtPhy, a fully...
Conference Paper
Full-text available
Scientific applications demand huge computational power connected through fast networks. They are developed using parallel kernel methods, usually implemented with the Message Passing Interface (MPI), presenting well-behaved communication patterns across computing nodes. The current network technologies do not allow defining traffic forwarding poli...
Article
Network latency is critical to the success of many highspeed, low-latency applications. RFC 2544 discusses and defines a set of tests that can be used to describe the performance characteristics of a network device. However, most of the available measurement tools cannot perform all the tests as described in this standard. As a novel approach, this...
Conference Paper
cientific applications (SciApps) are broadly used in all science domains. For more accurate results, they have been increasingly demanding computational power and extremely agile networks. These applications are usually implemented using numerical methods presenting well-behaved patterns to exchange data across its computing nodes. This paper prese...
Conference Paper
This paper proposes, implements, and evaluates VirtPhy, a novel approach to build small-scale data centers network infrastructure for network functions virtualisation (NFV). VirtPhy is fully programmable to respond to NFV stringent demands related to throughput, latency, cost, rapid innovation, and efficient orchestration. An 8-node testbed demonst...
Conference Paper
Network latency is critical to the success of many high-speed, low-latency applications. In this context, RFC 2544 discusses and defines a set of tests that may be used to describe the performance characteristics of a network device, but most of the available measurement tools cannot perform all the tests as described in this standard or represent...
Conference Paper
To fulfill the emerging demands of mobile users, future networks need to support seamless connectivity. Flexible resource allocation that responds to dynamic trends of user demand and mobility can be achieved through dynamic backhauling that supports elastic routing to setup and teardown paths rapidly as users move and networks adapt. Fortunately,...
Article
Full-text available
Network devices have always been considered as configurable black boxes until the emergence of Software-Defined Networking (SDN). SDN enables the networks to be programmed according to the user requirements; furthermore, it allows the network to be easily modified to suit transient demands. However, how do we program the network? SDN-compliant swit...
Conference Paper
Full-text available
Software Defined Networking (SDN) is a promisingarchitectural approach based on a programmatic separation ofthe control and data planes. For high availability purposes,logically centralized SDN controllers follow a distributed im-plementation. While controller role features in the OpenFlowprotocol allow switches to communicate with multiple control...
Conference Paper
Em Data Centers centrados em servidores estes não somente participam no processamento dos dados, mas também no encaminhamento do tráfego de rede. Em geral os servidores são organizados em uma topologia conhecida como hipercubo, onde o encaminhamento é feito através de simples operações de ou-exclusivo. Se por um lado essa simplicidade contribui par...
Conference Paper
Full-text available
This paper presents the design of a prototype embedded wireless sensor network (WSN) for monitoring and controlling electronic devices in a household. This sensor network is used to measure the devices' electrical energy consumption and turn them on or off. In this specific case the goal is to reduce the energy consumption, but the proposed design...
Conference Paper
This paper proposes a scenario of service-oriented architecture based on OSGi technology, in combination with multi agents systems developed using JADE environment. A key part of the scenario is the new architecture for SIP application server as part of the IMS Core network. As a proof of concept, a simulated environment for a televoting service wa...
Conference Paper
Software Defined Networking (SDN) are based on the separation of control and data planes. The SDN controller, although logically centralized, should be effectively distributed for high availability. Since the specification of OpenFlow 1.2, there are new features that allow the switches to communicate with multiple controllers that can play differen...
Conference Paper
Full-text available
Nowadays, Big Data applications exchange huge amounts of data, highly demanding network guarantees for band-width and low latency. However, network equipments did not provide a standard interface to control dynamically the resources. Software-Defined Network (SDN) has emerged to support network programmability, but it provides a programming model d...
Article
Full-text available
A comprehensive data plane power consumption analysis of an OpenFlow 1.0 switch broken down into its design modules is presented, and KeyFlow as an alternative solution is proposed, since it eliminates a flow table lookup by reducing 53.7% of the overall power consumption.
Conference Paper
Full-text available
This paper presents FlexForward, an approach for dynamically manage SDN data plane forwarding mechanisms. This feature leverages SDN flexibility in two aspects: (i) it provides a new management method, in which topological infrastructure requirements are satisfied by the most appropriate forwarding mechanism, residing in each managed network elemen...
Conference Paper
Full-text available
This paper presents the design of a prototype of an embedded wireless sensor network (WSN) for monitoring and controlling electronic devices in a household. This sensor network is used to measure the devices' electrical energy consumption and turn them on or off. The ultimate goal is to reduce the energy consumption. The system provides a web user...
Conference Paper
This paper presents the design of a prototype of an embedded wireless sensor network (WSN) for monitoring and controlling electronic devices in a household. This sensor network is used to measure the devices' electrical energy consumption and turn them on or off. The ultimate goal is to reduce the energy consumption. The system provides a web user...
Conference Paper
Full-text available
Peer-to-Peer (P2P) technology has been used as a mean to deliver video streaming services over the Internet. Al-though mobile devices have been increasingly used to access multimedia content, P2P video streaming applications are still in early stage regarding these devices. The P2P pro-tocol needs to be adapted to meet specific characteristics of m...
Conference Paper
Full-text available
Peer-to-Peer (P2P) technology has been used as a mean to deliver video streaming services over the Internet. Although mobile devices have been increasingly used to access multimedia content, P2P video streaming applications are still in early stage regarding these devices. The P2P protocol needs to be adapted to meet specific characteristics of mob...
Article
Full-text available
The large bulk of packets/flows in future core networks will require a highly efficient header processing in the switching elements. Simplifying lookup in core network switching elements is capital to transport data at high rates and with low latency. Flexible network hardware combined with agile network control is also an essential property for fu...
Article
Full-text available
The large bulk of packets/flows in OpenFlow-based networks will re-quire a level of efficiency in the processing of switching elements that do not compare to the classical methods of query tables flows. Simplifying procedures of lookup in core network is a necessary and ongoing effort to enable the trans-port of data at high rates and low latency....
Conference Paper
Full-text available
Recent proposals on Data Center Networks (DCN) are based on centralized control and a logical network fabric following a well-controlled baseline topology. The architectural split of control and data planes and the new control plane abstractions have been touted as Software-Defined Networking (SDN), where the OpenFlow protocol is one common choice...
Article
Full-text available
Traditional layer 2 and layer 3 network designs face some limitations on data center networks such as lack of scalability, difficult management and inflexible communi- cation. We observe that data center networks are often managed as a single logical network fabric with a well- controlled baseline topology and growth model. This pa- per describes a...
Conference Paper
Full-text available
The scientic method dictates that experiments must be reproduced before they are considered valid. In computer science, reproduction requires open access to all code, scripts, and data used to produce the results. In particular, the validation of large scale distributed systems is a huge challenge to be performed in a real Internet-based testbed. I...
Chapter
Collaborative navigation systems provide a useful way for virtual groups to share information through the web. However, the common set of features of these tools is not enough to offer a more face-to-face browsing experience. To fill in the gap, this paper presents a collaborative web browsing proposal, which integrates flexible session management,...
Conference Paper
Full-text available
Abstract. The use of P2P Video Streaming systems has increasingly becoming popular. This popularity stems from several advantages presented by this systems as economies in servers transmission bandwidth and improvements in scalability. However, effectively demonstrate the gains, in real systems, is a major challenge that few studies have given atte...