Template:NetworkStack

NetworkStack  · e

Layer	Name	Function
7	Application	Topmost layer, provides users a means to access network resources (only level seen by end user)
6	Presentation	Transforms data received into a format that is readable by the application layer. Handles encryption/description for secure data
5	Session	Manages communication sessions between computers. Manages connections with other devices. Half-duplex or full duplex.
4	Transport	Provide reliable data transport services to lower layers.
3	Network	Routes data between physical networks. Handles addressing, via IP. Handles packet fragmentation and error detection. Router level. Most complex layer.
2	Data Link	Transports data across a network. Provides addressing scheme to identify physical devices, bridges, switches, MAC addresses.
1	Physical	The physical medium for the network communication signals.

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