An example of this is ALI in Profibus.Ī network guru T-shirt from the 1980s shows Layer 8 as the 'financial' layer, and Layer 9 as the 'political' layer. Political policies such as network neutrality, spectrum management, and digital inclusion all shape the technologies comprising layers 1–7 of the OSI Model.Īn 8th layer has also been referenced to physical (real-world) controllers containing an external hardware device which interacts with an OSI model network. Political economic theory holds that the 8th layer is important to understanding the OSI Model. Since the OSI layer numbers are commonly used to discuss networking topics, a troubleshooter may describe an issue caused by a user to be a layer 8 issue, similar to the PEBKAC acronym, the ID-Ten-T Error and also PICNIC. Layer 10: Government or legal compliance.It is then held that the user is the 8th layer. The top (7th) layer is the Application Layer describing methods and protocols of software applications. The layers build upon each other, allowing for abstraction of specific functions in each one. The OSI model is a 7-layer abstract model that describes an architecture of data communications for networked computers. Layer 8 is a term used to refer to 'user' or 'political' layer on top of the 7-layer OSI model of computer networking.

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