Capitulo 5 cisco
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Transcript of Capitulo 5 cisco
![Page 1: Capitulo 5 cisco](https://reader036.fdocuments.in/reader036/viewer/2022081504/555ddda9d8b42a1e2c8b4a1f/html5/thumbnails/1.jpg)
Capitulo 5Capa de Red
del Modelo OSI
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Capa de red: Comunicación de host a host
La capa de red, o Capa 3 de OSI, provee servicios para intercambiar secciones de datos individuales a través de la red entre dispositivos finales identificados. Para realizar este transporte de extremo a extremo la Capa 3 utiliza cuatro procesos básicos: Direccionamiento Encapsulación Enrutamiento Desencapsulación
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Protocolos de la capa de red
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Rol del IPv4
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Servicio sin conexión
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Servicio de mejor intento (no confiable)
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Independiente de los medios
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Empaquetado de la PDU de la capa de Transporte
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Encabezado de paquetes IPv4
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Redes: Separación de hosts en grupos comunes
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Separación de hosts en grupos comunes
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Rendimiento
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Seguridad
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Administración de direcciones
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Direccionamiento jerárquico
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Redes a partir de redes
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Parámetros de dispositivos. Cómo respaldar la
comunicación fuera de nuestra red
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Paquetes IP: Cómo llevar datos de extremo a extremo
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Gateway predeterminado
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Confirmación del gateway y la ruta
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Ningún paquete puede ser enviado sin una ruta
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Ruta: El camino hacia una red
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Tabla de enrutamiento del host
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Red de destino
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Ruta predeterminada
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Envío de paquetes: Traslado del paquete hacia su destino
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Uso de la ruta predeterminada
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Protocolos de enrutamiento: Cómo compartir rutas
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Enrutamiento estático
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Enrutamiento dinámico