See more ideas about osi model, computer technology and computer network. Application presentation session transport network data. See more ideas about osi model, computer network and cisco networking. Each layer both performs specific functions to support the layers above it and offers services to the layers below it. Open systems interconnection reference model osi model or osi seven layer model is a conceptual model that characterizes and standardizes the internal functions of a communication system by partitioning it into abstraction layers. It divides the communications processes into seven layers. Osi model concepts service says what a layer does interface says how to access the service protocol says how is the service implemented a set of rules and formats that govern the. See more ideas about osi model, cisco networking and computer network. Osi model concepts service says what a layer does interface says how to access the service protocol says how is the service implemented a set of rules and formats that govern the communication between two peers layering.
Once the osi model is understood, it will be easier to design, use, and, especially. Modelo osi capa 1 cableado estructurado clase n 4 version. Open systems interconnection reference model osi model or osi seven layer model is a conceptual model that characterizes and standardizes the internal functions of a communication. This is effectively the manner in which they maintain an. Questions on routing protocol in computer networks set3. The layers begin at the end user process application, layer 7 and work. Pdf modelo osi y niveles enlace datos y red comunicacion. Protocol encapsulation chart a pdf file illustrating the relationship between common protocols and the osi reference model. Os quatro niveis superiores do modelo osi sao responsaveis pelos problemas associados a comunicacao pontoaponto entre os dois extremos comunicantes. Learn more to embed this file in your language if available use the lang parameter with the appropriate language code, e. The layers begin at the end user process application, layer 7 and work their way down through each layer until bits are put on the wire physical, layer 1. Cada protocolo implementa uma funcionalidade assinalada a uma determinada camada.
A layer should be created where different level of abstraction is needed. Learn more to embed this file in your language if available use the lang parameter with the appropriate. The session layer of the open system interconnection osi model defines how the data is formatted between the devices on either side of the link. This article lists protocols, categorized by the nearest layer in the open systems. Aspectos fisicos e eletricos da conexao entre computador e rede. Finally, this paper will draw comparisons between the theoretical osi model and the functional tcpip model. However, at lower levels of the osi model, there is no permanent connection but.