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GOVERNMENT OPEN SYSTEMS INTERCONNECTION PROFILE (GOSIP)
Federal Information Processing Standards Puplication (FIBS PUB 146-1)
Computer Systems Laboratory
National Institute of Standards and Technology
Gaithersburg, MD 20899
USA, WAshington, 1991
This publication is a revision of FIPS 146 and supersedes FIPS 146 in its
entirety. PIPS 146 adopted the Government Open Systems Interconnection Profile (GOSIP)
which defines a common set of data communication protocols that enable systems
developed by different vendors to interoperate and the users of different
applications on those systems to exchange information. This revision contains
all of the protocols in FIPS 146 plus additional protocols which provide new
services useful to Federal agencies and increase the interoperability achievable
among end systems of different manufacture. This revision also includes minor
technical changes to the protocols in FIPS 146. These changes are detailed in
Section 1.7 of the technical specifications document.
Key words: computer communications; Federal Information Processing Standards
Publication; GOSIP; information exchange; International Standards Organization;
inter-operability; NIST OSI Implementors Workshop; networking; open systems;
protocols;
protocol standards.
Federal Information Processing Standards Publication 146-1 1991 April 3
Specifications for
GOVERNMENT OPEN SYSTEMS INTERCONNECTION PROFILE (GOSIP)
TABLE OF CONTENTS
LIST OF FIGURES iv
LIST OF TABLES v
FOREWORD vi
PREFACE vii
GLOSSARY viii
1. I NTRODUCTION 1
1.1 BACKGROUND 1
1.2 PURPOSE 1
1.3 EVOLUTION OF THE GOSIP
1
1.4 SCOPE 2
1.5 APPLICABILITY 2
1.6 GOSIP VERSION 2
FUNCTIONALITY 2
1.7 GOSIP Version 1
Errata 3
1.8 SOURCES OF PROTOCOL
SPECIFICATIONS 3
1.8.1 Primary Source 3
1.8.2 Secondary Sources 3
1.8.3 Tertiary Sources 4
2. TESTING OF GOSIP-COMPLIANT PRODUCTS 5
2.1 CONFORMANCE
TESTING 5
2.2 INTEROPERABILITY
TESTING 5
2.3 PERFORMANCE
TESTING 6
2.4 FUNCTIONAL
TESTING 6
2.5 VENDOR
ENHANCEMENTS 6
3. DESCRIPTIONS OF ARCHITECTURE AND PROTOCOLS 7
3.1 ARCHITECTURE
DESCRIPTION 7
3.2 PROTOCOL
DESCRIPTIONS 10
4. PROTOCOL SPECIFICATIONS 12
4.1 USE OF THE LAYERED PROTOCOL
SPECIFICATIONS 12
4.1.1 Protocol Selection 12
4.1.2 Service Interface Requirements 12
4.1.3 Performance Requirements 13
4.2 END SYSTEM SPECIFICATION 13
4.2.1 Physical Layer 13
4.2.2 Data Link Layer 13
4.2.3 Network Layer Service 14
4.2.3.1 Connectionless Mode Network Service 14
4.2.3.2 Connection-Oriented Network Service 14
4.2.3.3 Network Layer Protocol Identification 15
4.2.3.4 Special Provisions For Integrated Services Digital Networks 15
4.2.4 Transport Layer 16
4.2.4.1 Connection-Oriented Transport Service 16
4.2.4.2 Connectionless Mode Transport Service 16
4.2.5 Session Layer 16
4.2.6 Presentation Layer 17
4.2.7 Application Layer. 17
4.2.7.1 Association Control Service Elements 17
4.2.7.2 File Transfer, Access, and Management Protocol (FTAM) 17
4.2.7.3 Message Handling Systems 17
4.2.7.4 Virtual Terminal (VT) Basic Class 18
4.2.8 Exchange Formats 18
4.2.8.1 Office Document Architecture (ODA) 18
4.3 INTERMEDIATE SYSTEM
SPECIFICATION 19
5. ADDRESSING REQUIREMENTS 20
5.1 NETWORK LAYER ADDRESSING AND
ROUTING . 20
5.1.1 NSAP Address Administration, Routing Structures and NSAP Address
Structure 20
5.1.2 NSAP Address Registration Authorities 22
5.1.2.1 Responsibilities Delegated by NIST . 22
5.1.3 GOSIP Routing Procedures 23
5.2 UPPER LAYERS ADDRESSING 23
5.2.1 Address Structure 23
5.2.2 Address Assignments 24
5.2.3 Address Registration 24
5.3 IDENTIFYING APPLICATIONS 24
5.3.1 FTAM and File Transfer User Interface Identification 24
5.3.2 MHS and Message User Interface Identification 24
6. SECURITY OPTIONS / 26
6.1 REASON FOR DISCARD
PARAMETERS 26
6.2 SECURITY PARAMETER FORMAT
27
6.2.1 Parameter Code 27
6.2.2 Parameter Length 27
6.2.3 Parameter Value 27
6.2.3.1 Security Format Code 28
6.2.3.2 Basic Portion 28
6.2.3.3 Extended Portion 28
6.3 BASIC PORTION OF THE SECURITY
OPTION 28
6.3.1 Basic Type Indicator . 28
6.3.2 Length of Basic Information 29
6.3.3 Basic Information 29
6.3.3.1 Classification Level 29
6.3.3.2 Protection Authority Flags 29
6.4 EXTENDED PORTION OF THE SECURITY
OPTION 30
6.4.1 Extended Type Indicator 31
6.4.2 Length of Extended Information 31
6.4.3 Extended Information 31
6.4.3.1 Additional Security Information Format Code 32
6.4.3.2 Length of Additional Security Information 32
6.4.3.3 Additional Security Information 32
6.5 USAGE GUIDELINES 33
6.5.1 Basic Portion of the Security Option 33
6.5.2 Extended Portion of the Security Option 33
6.6 OUT-OF-RANGE
PROCEDURE 33
6.7 TRUSTED INTERMEDIARY
PROCEDURE 34
REFERENCES 35
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