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http://dbpedia.org/ontology/abstract 広域イーサネット(こういきイーサネット、Wide Area Ethernet)は、地理的に離れたLAN間などをイーサネットインターフェースで接続する技術もしくは電気通信役務である。 , Un réseau ethernet métropolitain, égalemenUn réseau ethernet métropolitain, également appelé réseau ethernet urbain ou Metro Ethernet (terminologie anglo-saxonne très répandue), est un réseau de télécommunications à haut débit basé sur le standard Ethernet qui couvre une zone géographique étendue. Alors qu'à l'origine le protocole Ethernet était utilisé principalement dans les réseaux locaux privés des clients (entreprises et particuliers), depuis 2003 environ, cette technologie tend à se développer également au sein des réseaux plus larges tels que ceux des fournisseurs de services de télécommunications, notamment dans les segments d'accès et métropolitain. Elle permet aux opérateurs de raccorder à haut débit leurs clients et de leur fournir différents services: services aux entreprises (interconnexion de succursales, accès distants à un site central, mise en réseau de stockage...), accès haut débit pour le grand public (incluant internet, voix, IPTV...), réseau de collecte des opérateurs mobiles etc.au de collecte des opérateurs mobiles etc. , A metropolitan-area Ethernet, Ethernet MANA metropolitan-area Ethernet, Ethernet MAN, or metro Ethernet network is a metropolitan area network (MAN) that is based on Ethernet standards. It is commonly used to connect subscribers to a larger service network or the Internet. Businesses can also use metropolitan-area Ethernet to connect their own offices to each other. An Ethernet interface is typically more economical than a synchronous digital hierarchy (SONET/SDH) or plesiochronous digital hierarchy (PDH) interface of the same bandwidth. Another distinct advantage of an Ethernet-based access network is that it can be easily connected to the customer network, due to the prevalent use of Ethernet in corporate and residential networks. A typical service provider's network is a collection of switches and routers connected through optical fiber. The topology could be a ring, hub-and-spoke (star), or full or partial mesh. The network will also have a hierarchy: core, distribution (aggregation), and access. The core in most cases is an existing IP/MPLS backbone but may migrate to newer forms of Ethernet transport in the form of 10 Gbit/s, 40 Gbit/s, or 100 Gbit/s speeds or even possibly 400 Gbit/s to Terabit Ethernet network in the future. Ethernet on the MAN can be used as pure Ethernet, Ethernet over SDH, Ethernet over Multiprotocol Label Switching (MPLS), or Ethernet over DWDM. Ethernet-based deployments with no other underlying transport are cheaper but are harder to implement in a resilient and scalable manner, which has limited its use to small-scale or experimental deployments. SDH-based deployments are useful when there is an existing SDH infrastructure already in place, its main shortcoming being the loss of flexibility in bandwidth management due to the rigid hierarchy imposed by the SDH network. MPLS-based deployments are costly but highly reliable and scalable and are typically used by large service providers.typically used by large service providers. , Una Red Metro Ethernet, es una arquitecturUna Red Metro Ethernet, es una arquitectura tecnológica destinada a suministrar servicios de conectividad de datos en una Red de área metropolitana (MAN) de capa 2 en el modelo OSI, a través de interfaces (UNIs) Ethernet. Estas redes denominadas "multiservicio", soportan una amplia gama de servicios, aplicaciones, y cuentan con mecanismos donde se incluye soporte a tráfico "RTP" (tiempo real), para aplicaciones como Telefonía IP y Video IP, aun cuando este tipo de tráfico es especialmente sensible al retardo y al jitter (Fluctuación). Las redes Metro Ethernet pueden utilizar líneas de cobre (MAN BUCLE), lo que garantiza la posibilidad de despliegue en cualquier punto del casco urbano, soportando el 100% de los servicios demandados por los proyectos de Smart City. Las redes Metro Ethernet suelen utilizar principalmente medios de transmisión guiados, como son el cobre (MAN BUCLE) y la fibra óptica, existiendo también soluciones de radio licenciada, los caudales proporcionados son de 10 Mbit/s, 20 Mbit/s, 34 Mbit/s, 100 Mbit/s, 1 Gbit/s y 10 Gbit/s. La tecnología de agregación de múltiples pares de cobre, (MAN BUCLE), permite la entrega de entre 10 Mbit/s, 20 Mbit/s, 34 Mbit/s y 100 Mbit/s, mediante la transmisión simultánea de múltiples líneas de cobre, además esta técnica cuenta con muy alta disponibilidad ya que es casi imposible la rotura de todas las líneas de cobre y en caso de rotura parcial el enlace sigue transmitiendo y reduce el ancho de banda de forma proporcional. La fibra óptica y el cobre, se complementan de forma ideal en el ámbito metropolitano, ofreciendo cobertura total a cualquier servicio a desplegar.ra total a cualquier servicio a desplegar.
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rdfs:comment Una Red Metro Ethernet, es una arquitecturUna Red Metro Ethernet, es una arquitectura tecnológica destinada a suministrar servicios de conectividad de datos en una Red de área metropolitana (MAN) de capa 2 en el modelo OSI, a través de interfaces (UNIs) Ethernet. Estas redes denominadas "multiservicio", soportan una amplia gama de servicios, aplicaciones, y cuentan con mecanismos donde se incluye soporte a tráfico "RTP" (tiempo real), para aplicaciones como Telefonía IP y Video IP, aun cuando este tipo de tráfico es especialmente sensible al retardo y al jitter (Fluctuación).ible al retardo y al jitter (Fluctuación). , 広域イーサネット(こういきイーサネット、Wide Area Ethernet)は、地理的に離れたLAN間などをイーサネットインターフェースで接続する技術もしくは電気通信役務である。 , A metropolitan-area Ethernet, Ethernet MANA metropolitan-area Ethernet, Ethernet MAN, or metro Ethernet network is a metropolitan area network (MAN) that is based on Ethernet standards. It is commonly used to connect subscribers to a larger service network or the Internet. Businesses can also use metropolitan-area Ethernet to connect their own offices to each other.o connect their own offices to each other. , Un réseau ethernet métropolitain, égalemenUn réseau ethernet métropolitain, également appelé réseau ethernet urbain ou Metro Ethernet (terminologie anglo-saxonne très répandue), est un réseau de télécommunications à haut débit basé sur le standard Ethernet qui couvre une zone géographique étendue. Alors qu'à l'origine le protocole Ethernet était utilisé principalement dans les réseaux locaux privés des clients (entreprises et particuliers), depuis 2003 environ, cette technologie tend à se développer également au sein des réseaux plus larges tels que ceux des fournisseurs de services de télécommunications, notamment dans les segments d'accès et métropolitain. Elle permet aux opérateurs de raccorder à haut débit leurs clients et de leur fournir différents services: services aux entreprises (interconnexion de succursales, accès distainterconnexion de succursales, accès dista
rdfs:label Réseau ethernet métropolitain , Metro Ethernet , 広域イーサネット
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