layer 5 ⇝

session layer

(networking)   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).


Last updated: 1997-12-07