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ITU-T X.225 (1995) Amd. 2 (12/1997)

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Nested connections functional unit
The session protocol specification defined in ITU-T Rec. X.225 | ISO/IEC 8327-1 is enhanced to support the establishment of additional, independent, nested session connections within an existing session connection. This enhancement will support the reusability of existing application layer standards (each making full, and possibly incompatible, use of the session synchronization services) as components of new application layer standards.
Citation: https://handle.itu.int/11.1002/1000/3988
Series title: X series: Data networks, open system communications and security
  X.200-X.299: Open Systems Interconnection
  X.220-X.229: Connection-mode protocol specifications
Approval date: 1997-12-12
Identical standard:ISO/IEC 8327-1:1996/Amd2:1998 (Common)
Approval process:TAP
Status: In force
Maintenance responsibility: ITU-T Study Group 17
Further details: Patent statement(s)