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in a network architecture can two layers in different machines communicate between each other using some protocols, without having to go through the layers below, if yes how briefly ?

rainman
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No. Ultimately, for two computers to communicate, something physical (such as a bunch of electrons or photons) must pass between them and that's the lowest possible level of the OSI model.

In general, though, you shouldn't view the layers too rigidly. They're a vocabulary for talking about networking, rather than a requirement for writing network protocols.

David Richerby
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