session layer

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session layer

The third highest protocol layer (layer 5) in the OSI seven layer model. The session layer uses the transport layer to establish a connection between processes on different hosts. It handles security and creation of the session. It is used by the presentation layer.

Documents: ITU Rec. X.225 (ISO 8327), ITU Rec. X.215 (ISO 8326).

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(1997-12-07)