The third higheSt protocol layer (layer 5) in the OSISeven layer model. The SeSSion layer uSeS the {tranSport layer} to eStabliSh a {connection} between proceSSeS on different hoStS. It handleSSecurity 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). [ExampleS?] (1997-12-07)