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  2. Network layer - Wikipedia

    en.wikipedia.org/wiki/Network_layer

    The network layer provides the means of transferring variable-length network packets from a source to a destination host via one or more networks. Within the service layering semantics of the OSI (Open Systems Interconnection) network architecture, the network layer responds to service requests from the transport layer and issues service requests to the data link layer.

  3. OSI model - Wikipedia

    en.wikipedia.org/wiki/OSI_model

    The link layer corresponds to the OSI data link layer and may include similar functions as the physical layer, as well as some protocols of the OSI's network layer. These comparisons are based on the original seven-layer protocol model as defined in ISO 7498, rather than refinements in the internal organization of the network layer.

  4. Address Resolution Protocol - Wikipedia

    en.wikipedia.org/wiki/Address_Resolution_Protocol

    The packets are carried at the data link layer of the underlying network as raw payload. In the case of Ethernet, a 0x0806 EtherType value is used to identify ARP frames. The size of the ARP message depends on the link layer and network layer address sizes.

  5. OSI protocols - Wikipedia

    en.wikipedia.org/wiki/OSI_protocols

    Reliable transmission of data segments between points on a network, including segmentation, acknowledgement and multiplexing: Media layers 3 Network: Packet: Structuring and managing a multi-node network, including addressing, routing and traffic control: 2 Data link: Frame: Transmission of data frames between two nodes connected by a physical ...

  6. Network architecture - Wikipedia

    en.wikipedia.org/wiki/Network_architecture

    Network architecture is the design of a computer network.It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as communication protocols used.

  7. List of network protocols (OSI model) - Wikipedia

    en.wikipedia.org/wiki/List_of_network_protocols...

    This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.

  8. Ethernet physical layer - Wikipedia

    en.wikipedia.org/wiki/Ethernet_physical_layer

    The physical-layer specifications of the Ethernet family of computer network standards are published by the Institute of Electrical and Electronics Engineers (IEEE), which defines the electrical or optical properties and the transfer speed of the physical connection between a device and the network or between network devices.

  9. Packet switching - Wikipedia

    en.wikipedia.org/wiki/Packet_switching

    Connection-oriented transport layer protocols such as TCP provide a connection-oriented service by using an underlying connectionless network. In this case, the end-to-end principle dictates that the end nodes, not the network itself, are responsible for the connection-oriented behavior.