6 research outputs found
La seguridad en redes SDN y sus aplicaciones
Introduction: The review article is the product of the research on Security in SDN networks and their applications, developed at the District University in 2020, presenting the latest advances, that have been made in security.
Problem: The security weaknesses that SDN networks have had, due to being a new architecture. This has not allowed traditional networks to be replaced.
Objective: To carry out a review of the state of the art of SDN networks, focusing research on the security of the control layer and its advances.
Methodology: The descriptive method is implemented, consulting databases such as Scopus, IEEE and ScienceDirect, using the following search criteria: SDN networks, security in SDN networks, applications with SDN networks and OpenFlow protocol. It is shown as a research sample: the Asian, European and American continents with years of research from 2014 to 2020.
Results: Great advances have been made in terms of security for SDN networks, which allows us to see an early solution to the weaknesses that it currently faces.
Conclusion: SDN networks will solve all the challenges they face and will be consolidated as a solid and reliable architecture.
Originality: an important focus is taken on the security of SDN networks and the great development that has occurred in this regard is evident.
Limitations: SDN networks are a new architecture, so their development has been very little and advances in security have been significantly affected.Introducci贸n: El art铆culo de revisi贸n es producto de la investigaci贸n Seguridad en redes SDN y sus aplicaciones, desarrollada en la Universidad Distrital en el a帽o 2020, presentando los 煤ltimos avances que se han logrado en seguridad.
Problema: Las debilidades en seguridad que han tenido las redes SDN debido a ser una arquitectura nueva, esto no ha permitido que se reemplacen las redes tradicionales.
Objetivo: realizar una revisi贸n del estado del arte de las redes SDN enfocando la investigaci贸n la seguridad de la capa de control y sus avances.
Metodolog铆a: se emplea el m茅todo descriptivo, se consultaron bases de datos como Scopus, IEEE y ScienceDirect, utilizando los siguientes criterios de b煤squeda: SDN networks, security in SDN networks, applications with SDN networks y OpenFlow protocol, se tom贸 como muestra de investigaci贸n a los continentes asi谩tico, europeo y americano con a帽os de investigaci贸n desde el a帽o 2014 hasta el a帽o 2020.
Resultados: se han desarrollado grandes avances en seguridad para las redes SDN, lo que permite ver una pronta soluci贸n a las debilidades que afronta en la actualidad.
Conclusi贸n: las redes SDN lograran resolver todos los retos a los que se enfrentan y se consolidara como una arquitectura s贸lida y confiable.
Originalidad: se realiza un enfoque importante en la seguridad de las redes SDN y se evidencia el gran desarrollo que se ha presentado en este aspecto.
Limitaciones: las redes SDN son una arquitectura nueva por lo que su desarrollo ha sido muy poco y los avances en seguridad se vieron afectados significativamente
Estado del arte en redes definidas por software (SDN)
The growth of networks at a global level is inevitable due to the increase of users, devices and applications, such as: Internet of Things (IoT), processing and analysis of large amounts of information (Big Data), or streaming audio and video, which has demanded from the systems, greater storage resources and bandwidth. To this purpose, diverse paradigms have emerged for the centralized management of all the components of a network through fully administrable, centralized and dynamic technological platforms; among these is SDN (Software-Defined Networks). This document, consequently, establishes the state-of-art from a documentary research of a categorical type to be used as a frame of reference for research in the area of SDN by the Research Group of New Technologies of Social Application GIDENUTAS ascribed to the University Francisco Jose de Caldas. This is chronologically limited to a review, from 2007 until today, focused on the countries that have promoted the development and implementation of this new paradigm, using databases such as IEEE Xplore, Google Scholar, as well as documents from standardization organizations such as ONF and ITU.El crecimiento de las redes a nivel global es inevitable debido al aumento de usuarios, dispositivos y aplicaciones derivados de conceptos como pueden ser el Internet de las cosas (IoT, de ingl茅s Internet-of-Things), el procesamiento y an谩lisis de grandes cantidades de informaci贸n (Big Data), o la transmisi贸n de audio y video en vivo (Streaming), lo cual ha demandado de los sistemas mayores recursos de almacenamiento, ancho de banda y alta flexibilidad, entre otras caracter铆sticas. Por lo anterior, han emergido paradigmas para la gesti贸n centralizada de todos los componentes de una red mediante plataformas tecnol贸gicas totalmente administrables, centralizadas y din谩micas; entre estas se encuentran SD-WAN (Software Defined-Wide 脕rea Network) o SDR (Software-Defined Radio), ambas surgidas gracias al concepto de las Redes Definidas por Software o SDN (del ingl茅s Software-Defined Networking). El presente documento, en consecuencia, establece un estado de arte a partir de una investigaci贸n documental de tipo categorial para utilizarse como un marco de referencia de investigaciones en el 谩rea de SDN por el grupo de Investigaci贸n de Nuevas Tecnolog铆as de Aplicaci贸n Social GIDENUTAS adscrito a la Universidad Distrital Francisco Jos茅 de Caldas. Esta se limita cronol贸gicamente a una revisi贸n, desde el a帽o 2007 hasta hoy, enfocada en los pa铆ses que han promovido el desarrollo e implementaci贸n de este nuevo paradigma, recurriendo a bases de datos como IEEE Xplore, Google Scholar, as铆 como documentos de organizaciones de estandarizaci贸n como la ONF y la ITU
State of the art In sotware defined networking (SDN)
El crecimiento de las redes a nivel global es inevitable debido al aumento de usuarios, dispositivos y aplicaciones derivados de conceptos como pueden ser el internet de las cosas (IoT, de ingl茅s Internet-of-Things), el procesamiento y an谩lisis de grandes cantidades de informaci贸n (Big Data), o la transmisi贸n de audio y video en vivo (Streaming), lo cual ha demandado de los sistemas mayores recursos de almacenamiento, ancho de banda y alta flexibilidad, entre otras caracter铆sticas. Por lo anterior, han emergido paradigmas para la gesti贸n centralizada de todos los componentes de una red mediante plataformas tecnol贸gicas totalmente administrables, centralizadas y din谩micas; entre estas se encuentran SD-WAN (Software Defined-Wide 脕rea Network) o SDR (Software-Defined Radio), ambas surgidas gracias al concepto de las Redes Definidas por Software o SDN (del ingl茅s Software-Defined Networking). El presente documento, en consecuencia, establece un estado de arte a partir de una investigaci贸n documental de tipo categorial para utilizarse como un marco de referencia de investigaciones en el 谩rea de SDN por el grupo de Investigaci贸n de Nuevas Tecnolog铆as de Aplicaci贸n Social GIDENUTAS adscrito a la Universidad Distrital Francisco Jos茅 de Caldas. Esta se limita cronol贸gicamente a una revisi贸n, desde el a帽o 2007 hasta hoy, enfocada en los pa铆ses que han promovido el desarrollo e implementaci贸n de este nuevo paradigma, recurriendo a bases de datos como IEEE Xplore, Google Scholar, as铆 como documentos de organizaciones de estandarizaci贸n como la ONF y la ITU.The growth of networks at a global level is inevitable due to the increase of users, devices and applications, such as: Internet of Things (IoT), processing and analysis of large amounts of information (Big Data), or streaming audio and video, which has demanded from the systems, greater storage resources and bandwidth. To this purpose, diverse paradigms have emerged for the centralized management of all the components of a network through fully administrable, centralized and dynamic technological platforms; among these is SDN (Software-Defined Networks). This document, consequently, establishes the state-of-art from a documentary research of a categorical type to be used as a frame of reference for research in the area of SDN by the Research Group of New Technologies of Social Application GIDENUTAS ascribed to the University Francisco Jose de Caldas. This is chronologically limited to a review, from 2007 until today, focused on the countries that have promoted the development and implementation of this new paradigm, using databases such as IEEE Xplore, Google Scholar, as well as documents from standardization organizations such as ONF and ITU
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Hardware-Software Integrated Silicon Photonic Systems
Fabrication of integrated photonic devices and circuits in a CMOS-compatible process or foundry is the essence of the silicon photonic platform. Optical devices in this platform are enabled by the high index contrast between silicon and silicon on insulator. These devices offer potential benefits when integrated with existing and emerging high performance microelectronics. Integration of silicon photonics with small footprints and power-efficient and high-bandwidth operation has long been cited as a solution to existing issues in high performance interconnects for telecommunications and data communication. Stemming from this historic application in communications, new applications in sensing arrays, biochemistry, and even entertainment continue to grow. However, for many technologies to successfully adopt silicon photonics and reap the perceived benefits, the silicon photonic platform must extend toward development of a full ecosystem. Such extension includes implementation of low cost and robust electronic-photonic packaging techniques for all applications. In an ecosystem implemented with services ranging from device fabrication all the way to packaged products, ease-of-use and ease-of-deployment in systems that require many hardware and software components becomes possible.
With the onset of the Internet of Things (IoT), nearly all technologies鈥攕ensors, compute, communication devices, etc.鈥攑ersist in systems with some level of localized or distributed software interaction. These interactions often require a level of networked communications. For silicon photonics to penetrate technologies comprising IoT, it is advantageous to implement such devices in a hardware-software integrated way. Meaning, all functionalities and interactions related to the silicon photonic devices are well defined in terms of the physicality of the hardware. This hardware is then abstracted into various levels of software as needed in the system. The power of hardware-software integration allows many of the piece-wise demonstrated functionalities of silicon photonics to easily translate to commercial implementation.
This work begins by briefly highlighting the challenges and solutions for transforming existing silicon photonic platforms to a full-fledged silicon photonic ecosystem. The highlighted solutions in development consist of tools for fabrication, testing, subsystem packaging, and system validation. Building off the knowledge of a silicon photonic ecosystem in development, this work continues by demonstrating various levels of hardware-software integration. These are primarily focused on silicon photonic interconnects.
The first hardware-software integration-focused portion of this work explores silicon microring-based devices as a key building block for greater silicon photonic subsystems. The microring鈥檚 sensitivity to thermal fluctuations is identified not as a flaw, but as a tool for functionalization. A logical control system is implemented to mitigate thermal effects that would normally render a microring resonator inoperable. The mechanism to control the microring is extended and abstracted with software programmability to offer wavelength routing as a network primitive. This functionality, available through hardware-software integration, offers the possibility for ubiquitous deployment of such microring devices in future photonic interconnection networks.
The second hardware-software integration-focused portion of this work explores dynamic silicon photonic switching devices and circuits. Specifically, interactions with and implications of high-speed data propagation and link layer control are demonstrated. The characteristics of photonic link setup include transients due to physical layer optical effects, latencies involved with initializing burst mode links, and optical link quality. The impacts on the functionalities and performance offered by photonic devices are explored. An optical network interface platform is devised using FPGAs to encapsulate hardware and software for controlling these characteristics using custom hardware description language, firmware, and software. A basic version of a silicon photonic network controller using FPGAs is used as a tool to demonstrate a highly scalable switch architecture using microring resonators. This architecture would not be possible without some semblance of this controller, combined with advanced electronic-photonic packaging. A more advanced deployment of the network interface platform is used to demonstrate a method for accelerating photonic links using out-of-band arbitration. A first demonstration of this platform is performed on a silicon photonic microring router network. A second demonstration is used to further explore the feasibility of full hardware-software integrated photonic device actuation, link layer control, and out-of-band arbitration. The demonstration is performed on a complete silicon photonic network with both spatial switching and wavelength routing functionalities.
The aforementioned hardware-software integration mechanisms are rigorously tested for data communications applications. Capabilities are shown for very reliable, low latency, and dynamic high-speed data delivery using silicon photonic devices. Applying these mechanisms to complete electronic-photonic packaged subsystems provides a strong path to commercial manifestations of functional silicon photonic devices