ITU-T X-Series Standards
TELE-WORX Making Communications Work...
Applications Expertise
TELE-WORX Consults on these ITU-T X-Series Standards:
X.25 Interfaces between data terminal equipment (DTE) and data circuit
terminating equipment (DCE) for terminals operating in the packet mode
and connected to public dayta networks by dedicated circuit
X.200 / ISO 7498-1 OSI - Basic Reference Model: The Basic Model
X.207 / ISO 9545 Application layer structure
X.208 / ISO-8824 Specification of Abstract Syntax Notation One (ASN.1)
X.209 / ISO-8825 Specification of Basic Encoding Rules for ASN.1
X.210 Basic reference model: Conventions for the definition of OSI services
X.211 Physical service definition
X.212 / ISO 8886 Data link service definition
X.213 / ISO 8348 Network service definition
X.213 / ISO 8348 Add. 1: Connectionless mode transmission
X.213 / ISO 8348 Add. 2: Network layer addressing
X.214 / ISO 8072 Transport service definition
X.215 / ISO 8326 Session service definition
X.215 / ISO 8326 Add. 2 Incorporation of unlimited user data
X.216 / ISO 8822 Presentation service definition
X.217 / ISO-8649 Service Definition for the Association Control Service Element
X.217bis / ISO 15953 Service definition for the application service object
association control service element
X.217 / ISO 8649-1 Add.1 Authentication addendum to ACSE service definition
X.218 Reliable Transfer: Model and service definition
X.219 / ISO-9072-1 Remote Operations: Model, notation and service definition
X.220 Use of X.200-Series protocols in CCITT applications
X.222 Use of X.25 LAPB-compatible data link procedures to provide the OSI
connection-mode data link service
X.223 / Use of X.25 to provide connection mode network service to CCITT
applications
X.224 / ISO 8073 Protocol for providing the connection-mode transport service
X.224 / ISO 8073 Add. 2 Operation of Class 4 over connectionless network
service (CLNS)
X.225 / ISO 8327 Session protocol specification for OSI
X.226 / ISO 8823 ) Presentation protocol specification
X.227 / ISO-8650 Connection-Oriented Protocol Specification for the association
control service element
X.227 / ISO 8650 Cor. 1 Protocol specification for association control service
element
X.227bis Connection-mode protocol for the Application Service Object
Association Control Service Element
X.228 Reliable Transfer: Protocol specification
X.229 / ISO-9072-2 Remote Operations: Protocol Specification
X.233 / ISO 8473 Protocol for providing the connectionless mode network
service
X.233 / ISO 8473 Add. 3: Subnetwork dependent convergence function (SNDCF)
X.234 / ISO 8602 Connectionless-mode transport protocol
X.235 Connectionless Session protocol: Protocol specification
X.236 Connectionless Presentation protocol: Protocol specification
X.237 Connectionless protocol for the Association Control Service Element:
Protocol specification
X.237bis Connectionless protocol for the Application Service Object
Association Control Service Element
X.244 Procedure for the exchange of protocol identification during virtual call
establishment of packet switched public data networks
X.245 Connection-oriented Session protocol: Protocol Implementation
Conformance Statement (PICS) proforma
X.246 Connection-oriented Presentation protocol: Protocol Implementation
Conformance Statement (PICS) proforma
X.247 Protocol specification for the Association Control Service Element:
Protocol Implementation Conformance Statement (PICS) proforma
X.248 Reliable Transfer: Protocol Implementation Conformance Statement
(PICS) proforma
X.249 Remote Operations: Protocol Implementation Conformance Statement
(PICS) proforma
X.255 Connectionless Session protocol: Protocol Implementation Conformance
Statement (PICS) proforma
X.256 Connectionless Presentation protocol: Protocol Implementation Conformance
Statement (PICS) proforma
X.257 Connectionless protocol for the Association Control Service Element: Protocol
Implementation Conformance Statement (PICS) proforma
X.260 Framework for protocol identification and encapsulation
X.263 / ISO Protocol identification in the network layer
X.264 / ISO 11570 Transport protocol identification mechanism
X.273 Network layer security protocol
X.274 Transport layer security protocol
X.281 / ISO 13642 Elements of management information related to the OSI
Physical Layer
X.282 / ISO 10742 Elements of management information related to the OSI Data
Link Layer
X.283 / ISO 10733 Elements of management information related to the OSI
Network Layer
X.284 / ISO 10737 Elements of management information related to the OSI
Transport Layer
X.287 Structure of management information: Managed objects for supporting upper
layers
X.500 / ISO 9594-1 The Directory: Overview of concepts, models and services
X.501 / ISO 9594-2 The Directory: Models
X.509 The Directory: Public-key and attribute certificate frameworks
X.511 / ISO 9594-3 The Directory: Abstract service definition
X.518 / ISO 9594-4 The Directory: Procedures for distributed operation
X.519 / ISO 9594-5 The Directory: Protocol specifications
X.520 / ISO 9594-6 The Directory: Selected attribute types
X.521 / ISO 9594-7 The Directory: Selected object classes
X.525 / ISO 9594-9 The Directory: Replication
X.530 The Directory: Use of systems management for administration of the Directory
X.610 Provision and support of the OSI connection-mode Network service
X.613 Use of X.25 Packet Layer Protocol in conjunction with X.21/X.21 bis to provide
the OSI connection-mode Network service
X.614 Use of X.25 Packet Layer Protocol to provide the OSI connection-mode
Network service over the telephone network
X.622 Protocol for providing the connectionless-mode Network service: Provision of
the underlying service by an X.25 Subnetwork
X.623 Protocol for providing the connectionless-mode Network service: Provision of
the underlying service by a subnetwork that provides the OSI Data Link service
X.630 Efficient Open Systems Interconnection (OSI) operations
X.637 Basic connection-oriented common upper layer requirements
X.638 Minimal OSI facilities to support basic communications applications
X.639 Basic connection-oriented requirements for ROSE-based profiles
X.641 Quality of service: framework
X.642 Quality of service - Guide to methods and mechanisms
X.650 OSI - Basic Reference Model: Naming and addressing
X.680 ASN.1: Specification of basic notation
X.681 ASN.1: Information object specification
X.682 ASN.1: Constraint specification
X.683 ASN.1: Parameterization of ASN.1 specifications
X.690 ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical
Encoding Rules (CER) and Distinguished Encoding Rules (DER)
X.691 ASN.1 encoding rules: Specification of Packed Encoding Rules (PER)
X.692 ASN.1 encoding rules: Specification of Encoding Control Notation (ECN)
X.693 ASN.1 encoding rules: XML Encoding Rules (XER)
X.694 ASN.1 encoding rules: Mapping W3C XML schema definitions into ASN.1
X.695 ASN.1 encoding rules: Registration and application of PER encoding
instructions
X.700 / ISO-7498 Management Framework for OSI
X.701 / ISO-10040 System Management Overview
X.710 / ISO-9595 Common Management Information Services
X.711 / ISO-9596-1 Common Management Information Protocol Specification
X.722 / ISO-10165-4 Guidelines for the Definition of Managed Objects
X.730 / ISO 10164-1 Object Management Function
X.731 / ISO 10164-2 State Management Function
X.732 / ISO 10164-3 Attributes for Representing Relationships
X.733 / ISO 10164-4 Alarm Reporting Function
X.734 / ISO 10164-5 Event Report Management Function
X.735 / ISO 10164-6 Log Control Function
X.736 / ISO 10164-7 Security Alarm Reporting Function
X.737 / ISO 10164-14 Confidence and Diagnostic Test Categories
X.738 / ISO 10164-13 Summarization Function
X.739 / ISO 10164-11 Metric Objects and Attributes
X.740 / ISO 10164-8 Security Audit Trail Function
X.741 / ISO 10164-9 Objects and Attributes for Access Control
X.742 / ISO 10164-10 Usage Metering Function for Accounting Purposes
X.743 / ISO 10164-20 Time Management Function
X.744 / ISO 10164-18 Software Management Function
X.745 / ISO 10164-12 Test Management Function
X.746 / ISO 10164-15 Scheduling Function
X.748 / ISO 10164-22 Response Time Monitoring Function
X.749 / ISO 10164-19 Management Domain and Management Policy Management
X.750 / ISO 10164-16 Management Knowledge Management Function
X.751 / ISO 10164-17 Changeover Function
X.753 / ISO 10164-21 Command Sequencer for Systems Management
X.800 Security Architecture for Open Systems Interconnection
X.805 Security Architecture for Systems Providing End-to-End Communications
X.810 Security frameworks for open systems: Overview
X.811 Security frameworks for open systems: Authentication framework
X.812 Security frameworks for open systems: Access control framework
X.813 Security frameworks for open systems: Non-repudiation framework
X.814 Security frameworks for open systems: Confidentiality framework
X.815 Security frameworks for open systems: Integrity framework
X.816 Security frameworks for open systems: Security audit and alarms framework
X.830 Generic upper layers security: Overview, models and notation
X.831 Generic upper layers security: Security Exchange Service Element (SESE)
service definition
X.832 Generic upper layers security: Security Exchange Service Element (SESE)
protocol specification
X.833 Generic upper layers security: Protecting transfer syntax specification
X.834 Generic Upper Layers Security: Security Exchange Service Element (SESE)
Protocol Implementation Conformance Statement (PICS) proforma
X.835 Generic Upper Layers Security: Protecting transfer syntax Protocol
Implementation Conformance Statement (PICS) proforma
X.841 Security information objects for access control
X.842 Guidelines for the use and management of trusted third party services
X.843 Specification of TTP services to support the application of digital signatures
X.880 Remote Operations: Concepts, model and notation
X.881 Remote Operations: OSI realizations - Remote Operations Service Element
(ROSE) service definition
X.882 Remote Operations: OSI realizations - Remote Operations Service Element
(ROSE) protocol specification
X.1031 Roles of end users and telecommunications networks within security
architecture
X.1034 Guidelines on extensible authentication protocol based authentication and
key management in a data communication network
X.1035 Password-authenticated key exchange (PAK) protocol
X.1036 Framework for creation, storage, distribution and enforcement of policies for
network security
X.1051 Information security management guidelines for telecommunications
organizations based on ISO/IEC 27002
X.1055 Risk management and risk profile guidelines for telecommunication
organizations
X.Sup2 Supplement on security baseline for network operators
X.Sup3 Supplement on guidelines for implementing system and network security
Acronyms on this Page:
(I’m working on the acronyms...)
