X.210 1993 C 17 11 ISO/IEC 10731 Information technology Open Systems Interconnection Bryan Wood – – Basic Reference Model: Conventions for the definition of OSI services X.211 1995 C 17 11 ISO/IEC 10022 Information technology Open System Interconnection – – Physical service definition X.212 1995 C 17 11 ISO/IEC 8886 Information technology Open System Interconnection Kamlesh – – Data Link service definition Tewani X.213 2001 C 17 11 ISO/IEC 8348 Information technology Open Systems Interconnection Hicks – – Network service definition X.214 1995 C 17 11 ISO/IEC 8072 Information technology Open Systems Interconnection H. Lee – Transport service definition 1995 C 17 11 ISO/IEC 8326 Information technology Open Systems Interconnection Andrew – – X.215 Cor.1 (2000) C Cor.1 Session service definition Chandler X.215 Amd.1 (1997) C 17 11 ISO/IEC Efficiency enhancements Andrew 8326/Amd.1 Amd.1 Chandler X.215 Amd.2 (1997) C 17 11 ISO/IEC Nested connections functional unit Andrew Amd.2 8326/Amd.2 Chandler X.216 1994 C 17 11 ISO/IEC 8822 Information technology Open Systems Interconnection Grenville – – Presentation service definition Taylor X.216 Amd.1 (1997) C 17 11 ISO/IEC Efficiency enhancements Grenville Amd.1 8822/Amd.1 Taylor X.216 Amd.2 (1997) C 17 11 ISO/IEC Nested connections functional unit Grenville Amd.2 8822/Amd.2 Taylor X.217 1995 C 17 11 ISO/IEC 8649 Information technology Open Systems Interconnection John Day – – Service definition for the Association Control Service Element X.217 Amd.1 (1996) C 17 11 ISO/IEC Support of authentication mechanisms for the John Day 8649/Amd.1 Amd.1 connectionless mode X.217 Fast-associate mechanism Amd.2 (1997) C 17 11 John Day 8649/Amd.2 Amd.2
X.210 Information technology – Open Systems Interconnection – Basic Reference Model: Conventions for the definition of OSI services 1993 C 17 11 Bryan Wood ISO/IEC 10731 X.211 Information technology – Open System Interconnection – Physical service definition 1995 C 17 11 ISO/IEC 10022 X.212 Information technology – Open System Interconnection – Data Link service definition 1995 C 17 11 Kamlesh Tewani ISO/IEC 8886 X.213 Information technology – Open Systems Interconnection – Network service definition 2001 C 17 11 Hicks ISO/IEC 8348 X.214 Information technology – Open Systems Interconnection service definition 1995 C 17 11 H. Lee ISO/IEC 8072 X.215 Information technology – Open Systems Interconnection – Session service definition 1995 Cor.1 (2000) C C 17 11 Andrew Chandler ISO/IEC 8326 Cor.1 X.215 Amd.1 Efficiency enhancements Amd.1 (1997) C 17 11 Andrew Chandler ISO/IEC 8326/Amd.1 X.215 Amd.2 Nested connections functional unit Amd.2 (1997) C 17 11 Andrew Chandler ISO/IEC 8326/Amd.2 X.216 Information technology – Open Systems Interconnection – Presentation service definition 1994 C 17 11 Grenville Taylor ISO/IEC 8822 X.216 Amd.1 Efficiency enhancements Amd.1 (1997) C 17 11 Grenville Taylor ISO/IEC 8822/Amd.1 X.216 Amd.2 Nested connections functional unit Amd.2 (1997) C 17 11 Grenville Taylor ISO/IEC 8822/Amd.2 X.217 Information technology – Open Systems Interconnection – Service definition for the Association Control Service Element 1995 C 17 11 John Day ISO/IEC 8649 X.217 Amd.1 Support of authentication mechanisms for the connectionless mode Amd.1 (1996) C 17 11 John Day ISO/IEC 8649/Amd.1 X.217 Amd.2 Fast-associate mechanism Amd.2 (1997) C 17 11 John Day 8649/Amd.2 Transport