Desdobramentos de uma arquitetura do Data Center

Resumo Este trabalho investiga os impactos ambientais, sociais, urbanos e paisagísticos decorrentes da infraestrutura da internet, a partir do estudo de caso da grande ressonância arquitetônica desse sistema: o Data Center, um tipo de edifício em ampla multiplicação que evidencia a fisicalidade de um sistema que se apresenta como nebuloso, onipotente e ubíquo. A partir de exemplos elegidos, instiga-se a desenvolver análises dessas arquiteturas hipertecnológicas, discutindo seus aspectos formais e sócio-ambientais. A centralidade vital da infraestrutura da internet em uma sociedade cada vez mais conectada reverbera desafios existentes, mas cada vez mais complexos, como processos de urbanização, acesso desigual à comunicação e alto impacto ambiental, integrando o debate dos possíveis caminhos do campo da arquitetura nos desdobramentos da era digital. Palavras-chave: Data Center; Infraestrutura; Arquitetura da Internet; Fisicalidade da Internet. Abstract This work investigates the environmental, social, urban, and landscape impacts resulting from the internet infrastructure, focusing on the case study of the great architectural resonance of this system: The Data Center — a type of building in wide multiplication that highlights the physicality of a system that presents itself as cloudy, omnipotent, and ubiquitous. Based on selected examples, it analyzes these hyper-technological architectures, discussing their formal and socio-environmental aspects. The vital centrality of internet infrastructure in an increasingly connected society reverberates existing but increasingly complex challenges, such as urbanization processes, unequal access to communication, and high environmental impact, integrating the debate on possible paths in the field of architecture in the developments of the digital age. Keywords: Data Center; Infrastructure; Internet Architecture; Internet’s physicality.

NECS-based Cache Management in the Information Centric Networking

The Information Centric Networking ICN architectures are proposed to overcome the problems of the actual internet architecture. One of the main straight points of the ICN architectures is the in-network caching. The ICN performance is influenced by efficiency of the adopted caching strategy which manages the contents in the network and decides where caching them. However, the major issue which faces the caching strategies in the ICN architectures is the strategic election of the cache routers to store the data through its delivery path. This will reduce congestion, optimize the distance between the consumers and the required data furthermore improve latency and alleviate the viral load on the servers. In this paper, we propose a new efficient caching strategy for the Named Data Networking architecture NDN named NECS which is the most promising architecture between all the ICN architectures. The proposed strategy reduces the traffic redundancy, eliminates the useless replication of contents and improves the replay time for users due to the strategic position of cache routers. Besides, we evaluate the performance of this proposed strategy and we compare it with three other NDN caching strategies, using the simulator network environment NdnSIM. On the basis of the simulations carried out, we obtained interesting and convincing results.

APPLICATION OF INTERNET ARCHITECTURE IN CENTRALIZED AUTOMATED PROCESS CONTROL SYSTEMS

This article discusses the use of Internet architecture in centralized automated process control systems for the purpose of monitoring and managing geographically distributed objects. The hardware components of the proposed architecture are described and the required functions are formulated. The methods of implementing these functions of centralized control systems based on this architecture are proposed: using internal algorithms of SCADA systems, or using microprocessor subsystems. The difficulties that are likely to be encountered when implementing all the required functions in the system being developed are described.

Internet Architecture: Current Limitations Leading Towards Future Internet Architecture

The original internet design principle was guided by the end-to-end principle in the early 1980s and formed the foundation for the existing internet architectural model. The priorities of the original internet designers do not match the needs of today actual users; rise in new players, demanding applications, erosion of trust and rights and responsibilities is pushing the internet to a new dimension. This paper presents the goals and principles behind the design of the original internet architecture, the resulting issues and limitations of the existing network architecture and the approaches that is driving the future internet architecture.

OPMSS: Optimal Producer Mobility Support Solution for Named Data Networking

Named data networking (NDN) is designed as a clean-slate Internet architecture to replace the current IP Internet architecture. The named data networking was proposed to offer vast advantages, especially with the advent of new content distributions in IoT, 5G and vehicular networking. However, the architecture is still facing challenges for managing content producer mobility. Despite the efforts of many researchers that curtailed the high handoff latency and signaling overhead, there are still some prominent challenges, such as non-optimal routing path, long delay for data delivery and unnecessary interest packet losses. This paper proposed a solution to minimize unnecessary interest packet losses, delay and provide data path optimization when the mobile producer relocates by using mobility update, broadcasting and best route strategies. The proposed solution is implemented, evaluated and benchmarked with an existing Kite solution. The performance analysis result revealed that our proposed Optimal Producer Mobility Support Solution (OPMSS) minimizes the number of unnecessary interest packets lost on average by 30%, and an average delay of 25% to 30%, with almost equal and acceptable signaling overhead costs. Furthermore, it provides a better data packet delivery route than the Kite solution.

“This is not how we imagined it”: Technological affordances, economic drivers, and the Internet architecture imaginary

The Internet architecture is widely perceived as engine for innovation by providing the equal opportunity to deploy new protocols and applications. This view reflects an imaginary that guides the co-production of policy and technology that can be traced back to the early days of the Internet, which is still prominent among the engineers in one of the main governance bodies of the Internet, the Internet Engineering Taskforce (IETF). After the privatization of the Internet architecture in the 1990s, the interplay between the architectural principles of end-to-end, permissionless innovation, and openness subverted equality among Internet users and hampered their ability to redesign the Internet. I draw on media studies, science and technology studies and international political economy, and use a combination of qualitative and quantitative methods to show how the Internet architecture’s affordance structure got reconfigured, and how this facilitated the prioritization of corporate interests over the interests of end users.