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TCP/IP 5 Layer Model - Coggle Diagram
TCP/IP 5 Layer Model
Network/IP
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Adds a header including the source and destination IP address to generate a packet. This packet is then sent to the Data Link layer.
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Transport
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Adds the TCP or UDP header which includes the source and destination port addresses. Additional information like the packet sequence number used for TCP will also be added to the header. The data generated by the transport layer is referred to as a Segment if TCP is used, and is referred to as a Datagram if UDP is used. This segment is then sent to the Network layer.
Source Port = 31,244
Destination Port = 80
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Application
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Generates a message. In this case, the specific application is a web browser requesting a webpage download. This message is then sent to the Transport layer.
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Physical
The physical devices that interconnect computers. Includes the specifications for the networking cables and connectors and specifications describing how signals are sent over these connections.
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