Information Technology - Open Systems Interconnection - Presentation Service Definition - Amendment 2: Nested Connections Functional Unit - Series X: Data Networks and Open System Communication - Open System Interconnection - Service Definitions
The Presentation service definition defined in ITU-T Rec. X.216 I ISOAEC 8822 is enhanced to define an optional
functional unit which permits additional, independent, nested presentation connections within an existing presentation
connection.