No full-text available
To read the full-text of this research,
you can request a copy directly from the authors.
Redes definidas por software: Solución para servicios portadores del Ecuador
ResearchGate has not been able to resolve any citations for this publication.
The term "software-defined networking" is difficult to
grasp. Almost everyone understands SDN at least in detail,
and so almost everything is covered by what software can do
to improve the value of a network. But three views on SDN
stand out. Software Defined Networking (SDN) started as an
idea that the data layer and control layer in the network should
be clearly separated. Essentially, this would separate the
hardware from the software and abandon the traditional model
of vendor-specific platforms and proprietary control-level
implementations. Implementing such an architecture would
result in better network programmability, innovation, and
agility, and ultimately, the prospect of lower costs through
hardware and architectural simplification and operational
savings through collaborative control
Software defined networking (SDN) is an emerging approach to handle data forwarding and control separately. The notion of programmability has central importance in SDN. Two implementation strategies; proprietary and open source, are shaping the trends of the adoptability of SDN by major hardware manufacturers. A group of leading vendors believes that loose coupling between the logical and physical layers of a network hinders the proper provision of physical resources and suggests a proprietary fix to this problem. The other group regards the notion of openness as s key feature of SDN. This paper compares and contrasts these two implementation strategies of SDN by identifying their respective operating principles, features of the product lines, and weakness and strengths.
This document defines the architectural framework for the ForCES (Forwarding and Control Element Separation) network elements, and identifies the associated entities and their interactions.
The network resource allocation in SDN for control applications is becoming a key problem in the near future because of the conflict between the need of the flow-level flexibility control and the limited capacity of flow table. Based on the analysis of the difference of the definition of network resource between SDN and traditional IP network, the idea of the integrated allocation of link bandwidth and flow table for multiple control applications in SDN is proposed in this paper. Furthermore, a price-based joint allocation model of network resource in SDN is built by introducing the price for each of the resources, which can get the proportional fair allocation of link bandwidth and the minimum global delay at the same time. We have also designed a popular flow scheduling policy based on the proportional fair allocation of link bandwidth in order to achieve the minimum global delay. A flow scheduling module has been implemented and evaluated in Floodlight, named virtual forwarding space (VFS). VFS can not only implement the fair allocation of link bandwidth and minimum delay flow scheduling in data plane but also accelerate packet forwarding by looking up flow cache in control plane.
Introducción Actualmente, nadie puede negar que las sociedades estén en una transformación acelerada y que ésta implique modificaciones sustanciales en las relaciones sociales. A todas luces esta situación parece incuestionable y también es preciso recordar a la manera de Sweezy (1945:13), que las cosas más evidentes son a menudo las más importantes. Las relaciones sociales tienen una importancia fundamental que las disciplinas sociales han reconocido y que se empeñan en estudiar. Así, gran parte de la investigación que se realiza actualmente en este campo otorga un interés a las manifestaciones del cambio y a las sutilezas de lo complejo. Por esto, existen diver-sas técnicas de investigación para abordar la sociedad. Entre ellas está la entrevista; considerada "como uno de los instrumentos más poderosos de la investigación" (McCrakent, 1991), que para ciertos fines descriptivos y analíticos es eficaz. La entrevista tiene un enorme potencial para permitirnos acceder a la parte mental de las perso-nas, pero también a su parte vital a través de la cual descubrimos su cotidianidad y las relaciones sociales que mantienen. En este contexto, la entrevista como instrumento de investigación es suficiente para la realización del proceso investigativo y en muchos casos su uso es forzado y frecuentemente obligatorio. Más aún tiene un importante potencial complementario en relación a los estudios cuantitativos, en donde su aportación concierne al entendimiento de las creencias y experiencia de los actores. En este sentido la entrevista es pertinente, ya que contribuye a situar la cuantificación en un contexto social y cultural más amplio. Otros tipos de investigación también requieren de la entrevista. Las ciencias sociales aplicadas frecuentemente buscan determinar estrategias para mejorar la situación de las personas, así en muchas ocasiones se busca precisar el significado de los elementos en donde se prevé intervenir. En este marco, de acuerdo a la percepción de los actores, es importante definir: el significado de hogar para determinado grupo social; el concepto de innovación para la administración; o las actitudes, intereses y actividades de un tipo de familia. El desarrollo social entonces depende en mucho de la comprensión que se tenga de las percepciones personales.
Software-Defined Networking (SDN) approaches were introduced as early as the mid-1990s, but just recently became a well-established industry standard. Many network architectures and systems adopted SDN, and vendors are choosing SDN as an alternative to the fixed, predefined, and inflexible protocol stack. SDN offers flexible, dynamic, and programmable functionality of network systems, as well as many other advantages such as centralized control, reduced complexity, better user experience, and a dramatic decrease in network systems and equipment costs. However, SDN characterization and capabilities, as well as workload of the network traffic that the SDN-based systems handle, determine the level of these advantages. Moreover, the enabled flexibility of SDN-based systems comes with a performance penalty. The design and capabilities of the underlying SDN infrastructure influence the performance of common network tasks, compared to a dedicated solution. In this paper we analyze two issues: a) the impact of SDN on raw performance (in terms of throughput and latency) under various workloads, and b) whether there is an inherent performance penalty for a complex, more functional, SDN infrastructure. Our results indicate that SDN does have a performance penalty, however, it is not necessarily related to the complexity level of the underlying SDN infrastructure.
This paper presents an independent comprehensive analysis of the efficiency indexes of popular open source SDN/OpenFlow controllers (NOX, POX, Beacon, Floodlight, MuL, Maestro, Ryu). The analysed indexes include performance, scalability, reliability, and security. For testing purposes we developed the new framework called hcprobe. The test bed and the methodology we used are discussed in detail so that everyone could reproduce our experiments. The result of the evaluation show that modern SDN/OpenFlow controllers are not ready to be used in production and have to be improved in order to increase all above mentioned characteristics.
Software Defined Networking (SDN) is an exciting technology that enables innovation in how we design and manage networks. Although this technology seems to have appeared suddenly, SDN is part of a long history of efforts to make computer networks more programmable. In this paper, we trace the intellectual history of programmable networks, including active networks, early efforts to separate the control and data plane, and more recent work on OpenFlow and network operating systems. We highlight key concepts, as well as the technology pushes and application pulls that spurred each innovation. Along the way, we debunk common myths and misconceptions about the technologies and clarify the relationship between SDN and related technologies such as network virtualization.
Novel architecture allows programmers to quickly reconfigure network resource usage.
The paper is devoted to consideration of an innovative access network dedicated to B2B (Business To Business) applications. We present a network design based on passive optical LAN architecture utilizing proven GPON technology. The major advantage of the solution is an introduction of SDN paradigm to PON networking. Thanks to such approach network configuration can be easily adapted to business customers' demands and needs that can change dynamically. The proposed solution provides a high level of service flexibility and supports sophisticated methods allowing user traffic forwarding in effective way within the considered architecture.
Software-defined Networking (SDN) has emerged as a new paradigm of networking that enables network operators, owners, vendors, and even third parties to innovate and create new capabilities at a faster pace. The SDN paradigm shows potential for all domains of use, including data centers, cellular providers, service providers, enterprises, and homes. Over a three-year period, we deployed SDN technology at our campus and at several other campuses nation-wide with the help of partners. These deployments included the first-ever SDN prototype in a lab for a (small) global deployment. The four-phased deployments and demonstration of new networking capabilities enabled by SDN played an important role in maturing SDN and its ecosystem. We share our experiences and lessons learned that have to do with demonstration of SDN’s potential; its influence on successive versions of OpenFlow specification; evolution of SDN architecture; performance of SDN and various components; and growing the ecosystem.
Cloud services are exploding, and organizations are converging their data centers in order to take advantage of the predictability, continuity, and quality of service delivered by virtualization technologies. In parallel, energy-efficient and high-security networking is of increasing importance. Network operators, and service and product providers require a new network solution to efficiently tackle the increasing demands of this changing network landscape. Software-defined networking has emerged as an efficient network technology capable of supporting the dynamic nature of future network functions and intelligent applications while lowering operating costs through simplified hardware, software, and management. In this article, the question of how to achieve a successful carrier grade network with software-defined networking is raised. Specific focus is placed on the challenges of network performance, scalability, security, and interoperability with the proposal of potential solution directions.
Many experts predict that software-defined networking, a technology that's been highly touted for several years, will soon finally begin gaining ground in the marketplace.
A unique overview of network security issues, solutions, and methodologies at an architectural and research level Network Security provides the latest research and addresses likely future developments in network security protocols, architectures, policy, and implementations. It covers a wide range of topics dealing with network security, including secure routing, designing firewalls, mobile agent security, Bluetooth security, wireless sensor networks, securing digital content, and much more. Leading authorities in the field provide reliable information on the current state of security protocols, architectures, implementations, and policies. Contributors analyze research activities, proposals, trends, and state-of-the-art aspects of security and provide expert insights into the future of the industry. Complete with strategies for implementing security mechanisms and techniques, Network Security features:
State-of-the-art technologies not covered in other books, such as Denial of Service (DoS) and Distributed Denial-of-Service (DDoS) attacks and countermeasures
Problems and solutions for a wide range of network technologies, from fixed point to mobile
Methodologies for real-time and non-real-time applications and protocols
Do Mobile Carriers Need SDN? Recuperado el 11 de octubre de
- S Barkai
Barkai, S. (10 de octubre de 2013). Do
Mobile Carriers Need SDN? Recuperado
el 11 de octubre de 2014, de SDN Central: https://www.sdncentral.com/education/mobile-carriers-need -sdn/2013/10/
55
Cisco Challenged as Facebook Favors Software to Move Data: Teciz. Recuperado el 11 de octubre de
- P Burrows
Burrows, P. (9 de junio de 2014). Cisco Challenged as Facebook Favors Software to
Move Data: Teciz. Recuperado el 11 de
octubre de 2014, de Bloomberg:
h t t p : /1w w w bl 00mb erg.
com/news!20 14-06-10/cisco-challen ge d -as -fa cebo o k -favo rs -so ftware-to-move-data-tech.html
Recuperado el 10 de octubre de
- M Casado
Casado, M. (s.Q. Controller Platfonns. Recuperado el 10 de octubre de 2014, de
McKeown Group: http:!/yuba.stanford.edu./-casado/of-sw.html
A case for expanding OpenFlow/SDNI Recuperado el 11 de octubre de
- M Davy
- De Openflow
Davy, M. (julio de 2011). A case for expanding OpenFlow/SDNI Recuperado el 11
de octubre de 2014, de OpenFlow:
http :1/a rchiv e. open flow. o rg/wp/wp-content/uploads!2011/07/GE-NI-Workshop-Whitepaper.pdf
About jis: The Internet Engineering Task Force. Recuperado el 23 de septiembre de 2014, de sitio web de The Internet Engineering Task Force
- A Farrel
- J.-P Vasseur
- J Ash
Farrel, A., Vasseur, J.-P., & Ash, J. (agosto
de 2006). About jis: The Internet Engineering Task Force. Recuperado el 23 de
septiembre de 2014, de sitio web de The
Internet Engineering Task Force:
http://tools.ietf.org/html/rfc4655
Redes definidas por software: Solución pan servicios portadores del Ecuador Goransson
- P Black
Redes definidas por software: Solución pan servicios portadores del Ecuador
Goransson, P., & Black, C. (2014). Software
Dejined Networks: A Cornpre/wnsive
SDN: Developrnent, Adoption and Researciz Trends
- L Gupta
Gupta, L. (13 de diciembre de 2013). SDN:
Developrnent, Adoption and Researciz
Trends. Recuperado el 10 de octubre de
2014, de Washington University:
http://www.cse.wustl.edu/-jain/
cse570-13/ftp/sdn.pdf
Five commercial SDN controllers to know about
- Lvi Mcnickle
McNickle, lvi. (18 de septiembre de 2014).
Five commercial SDN controllers to know
about. Recuperado el 10 de octubre de
2014, de Tech Target: http://:
searchsdn.techtar_
get.com/news/2240230895/Five-com_
mercial-SDN-controllers-to-knowabout
Redes Definidas por Software
- C Montero
Montero, C. (31 de octubre de 2014). Redes
Definidas por Software. (G. N. Cuenca
Pérez, Entrevistador)
Redes definidas por Software en Ecuador
- C Montero
Montero, C. (31 de octubre de 2014). Redes
definidas por Software en Ecuador. (G.
Cuenca, Entrevistador) Guayaquil,
Guayas.
OPEN NETWORKING SUMMIT TO EXPLORE SOFTWARE-DEFINED NETWORKING. Recuperado el 11 de octubre de
- A Myers
Myers, A. (17 de mayo de 2012). OPEN
NETWORKING SUMMIT TO
EXPLORE SOFTWARE-DEFINED
NETWORKING. Recuperado el 11 de
octubre de 2014, de Stanford University:
h t t p :1/e ng i n e e ring. sta n ford.
e d u/new s/op en -n e two r king-su mmit -explore -software -define d -n e tworking
JEFE SDN for Future Networks a
- Scott-Hayward
- G Q'callaghan
- S Sezer
Scott-Hayward, 5., Q'Callaghan, G., &
Sezer, S. (2013). SDN security: A
survey. 2013 JEFE SDN for Future
Networks a,id Services (SDN4FNS)
(págs. 1-7). Belfast: IEEE.
Recuperado el 10 de octubre de 2014, de Estrategias de seguridad de SDN para prevenir ataques a la red: httpllsearchdatacenter
- D Shackleford
Shackleford, D. (28 de junio de 2013). Tech
Target. Recuperado el 10 de octubre de
2014, de Estrategias de seguridad de SDN
para prevenir ataques a la red: httpllsearchdatacenter.techtarget.comles/reporte/Estrategias-de-seguridad-de-SDN-para-prevenir-ataques-a-la-red
How software-defined networing will boosi carrier Ethernet services. Recuperado el 11 de octubre de 2014, de Tech Target: httpilsearchsdn techtarget.com/opinionlHowso ft w are -d e fin e d -n e t w o r k i ngwill-boost-carrier-Ethernet-services Van der Merwe
- R Tomkins
Tomkins, R. (febrero de 2014). How software-defined networing will boosi carrier
Ethernet services. Recuperado el 11 de
octubre de 2014, de Tech Target: httpilsearchsdn techtarget.com/opinionlHowso ft w are -d e fin e d -n e t w o r k i ngwill-boost-carrier-Ethernet-services
Van der Merwe, J., Cambridge Univ., U.,
Rooney, 5., Leslie, 1., & Crosby, S. (Mayo
de 1998). Thc Tempest-a practical framework for network programmability.
IEEE Network, 20-28.
Ranking the Top 10 Software Defined Networking Startups
- J Vance
Vance, J. (25 de septiembre de 2013). Ranking
the Top 10 Software Defined Networking Startups. CÍO. Obtenido de http://www.cio.com/article/23 83078 Imergers-acquisitionslranking-the-top-10-software-defined-networking-startups.html
List of OpenFlow Controllersfor SDN. Recuperado ellO de octubre de 2014, de The Tech: h t t p :11w w w. t he te ch
- S Velrajan
Velrajan, S. (12 de diciembre de 2012). List of
OpenFlow Controllersfor SDN. Recuperado ellO de octubre de 2014, de The Tech:
h t t p :11w w w. t he te ch. i n -/20l2ll2llist-of-openflow-controllers-for-sdn.html
Entrevista de G. Cuenca. Redes definidas por Software en Ecuador
- J Vivar
Vivar, J. (31 de octubre de 2014). Entrevista
de G. Cuenca. Redes definidas por
Software en Ecuador, Guayaquil,
Guayas.
corn!clenlus/solutions!collateral/servi ce-prov ide r/v i s ua 1-n e two r kingindex-vni/white_paper_cll-520862. html CITRIX. (s.f de mayo de 2014). SDN 101: Ai; Introduction. Recuperado el 11 de octubre de
- Citrix De
Cisco Visual Networing mdcx: Global
Mobile Data Trafflc Forecast Updatc.
Recuperado el 16 de septiembre de 2014,
de Cisco System mc: http://www.cisco.corn!clenlus/solutions!collateral/servi ce-prov ide r/v i s ua 1-n e two r kingindex-vni/white_paper_cll-520862.
html
CITRIX. (s.f de mayo de 2014). SDN 101:
Ai; Introduction. Recuperado el 11 de
octubre de 2014, de CITRIX: http:f/
www.citrix.com/content/dam/citrix-/en_us!documents/oth!sdn-101 -anintroduction-to-software-defined -networking.pdf
Tecnologías de la Información y Comunicaciones (TIC'S) 2013. Recuperado el 10 de octubre de
- Inec
INEC. (12 de septiembre de 2014).
Tecnologías de la Información y Comunicaciones (TIC'S) 2013. Recuperado el 10
de octubre de 2014, de Instituto Nacional de Estadística y Censos: http://www.observatoriotic.mintel.gob. ec/images/varios/Noticias/Reportes/Res u 1-tados_principales_12_09_20 14.pdf
Sdn-based application-aware networking on the example of youtube video streaming
- Lvi
- F Wamser
- T Hohn
- T Zinner
- P Tran-Gia
Internet World Stats. (2013 de diciembre de
2013). Internet Growt/z Statistics. Obtenido de Internet World Stats: http://
www.internetworldstats.com/stats.
htm
J arschel, lvi., Wamser, F., Hohn, T., Zinner,
T., & Tran-Gia, P. (2013). Sdn-based
application-aware networking on the
example of youtube video streaming.
2013 Second Europea;; Workshop on
Software DeJ7ned Networks (EWSDN)
(págs. 87-92). Würzburg: IEEE.
Análisis de los aspectos que influyen en ¡os costos del servicio de Internet en el Ecuador. Revista institucional de la Superintendencia de Telecomunicaciones
- Supertel
SUPERTEL. (2010). Análisis de los aspectos
que influyen en ¡os costos del servicio de
Internet en el Ecuador. Revista institucional
de la Superintendencia de Telecomunicaciones, 11-13.