ISO/IEC 10588:1993 PDF

Name: ISO/IEC 10588:1993 — Information technology — Use of X.25 Packet Layer Protocol in conjunction with X.21/X.21 bis to provide the OSI connection-mode Network Service
SKU: ISO/IEC 10588:1993
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Information technology — Use of X.25 Packet Layer Protocol in conjunction with X.21/X.21 bis to provide the OSI connection-mode Network Service

Название (английский):

ISO/IEC 10588:1993

Information technology — Use of X.25 Packet Layer Protocol in conjunction with X.21/X.21 bis to provide the OSI connection-mode Network Service

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 29 апреля 1993 г.
Издание:: ISO/IEC IS 10588 edition 1 version 1
ICS:: 35.100.30

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Описание (английский):

Applies to environments including a CSDN and an ISDN terminal adaptor complying with recommendation X.30 which provides an X.21 access. Provision is achieved by specifying the mapping of the CONS primitives and parameters to and from the elements of the protocols used (X.25 PLP and X.21).

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO/IEC 10588:1993 specifies how the X.25 Packet Layer Protocol (PLP, ISO/IEC 8208) is used together with X.21 / X.21 bis interfaces to provide the OSI Connection‑mode Network Service (CONS). The standard applies where X.21/X.21 bis is used (including ISDN terminal adaptors per X.30) or where circuit‑switched public or private data networks (CSDNs) appear in the path. It defines the mapping of CONS primitives and parameters to and from the protocol elements of X.25 PLP and X.21, and provides additional provisions needed when circuit‑switched connections are introduced between DTEs or between a DTE and a PSDN.

Key topics and requirements

Scope and configurations

Covers DTE‑to‑DTE (direct or via concatenated CSDNs or ISDN + TA) and DTE‑to‑PSDN scenarios.
Supports both DTE/DTE and DTE/DCE modes of ISO/IEC 8208.

Mapping of CONS to X.25/X.21

Specifies how OSI CONS primitives and parameters map to X.25 PLP elements (as required by CCITT Rec. X.223 / ISO 8878).
Includes mappings for error/clearing conditions - e.g., X.21 call progress signals mapped to CONS N‑DISCONNECT reason codes.

Control of underlying connections

Distinguishes leased (permanent) circuits and circuit‑switched (call‑oriented) connections.
Requires use of X.21 / X.21 bis procedures to establish circuit‑switched links before invoking X.25 procedures when a circuit is not already present.
Defines behavior on disconnection/failure (how layer‑1 failures map to N‑DISCONNECT indications).

Layer constraints

Data link layer constrained by ISO 7776 (LAPB) procedures.
Network layer constrained by ISO/IEC 8208 (X.25 PLP) procedures.

Identification and interworking

Notes requirements for identification exchange (billing/security) and refers to X.32 methods when applicable.

Compatibility

Identical text published as CCITT Recommendation X.613; intended to work together with X.223 / ISO 8878 and related CCITT/ITU‑T recommendations.

Applications and who uses it

Network engineers and architects designing or maintaining legacy packet/circuit interworking (X.25 over circuit‑switched links).

Vendors of ISDN terminal adaptors (X.30 TAs), DTE/DCE equipment, and equipment supporting X.21/X.21 bis interfaces.

Service providers and integrators ensuring interoperability between CSDNs, ISDNs and PSDNs when providing OSI CONS.

Test and certification labs verifying correct mapping of CONS primitives, handling of connection setup/teardown, and failure semantics.

Related standards

ISO/IEC 8208 - X.25 Packet Layer Protocol (PLP)

ISO 7776 - X.25 LAPB data link procedures

CCITT Rec. X.223 / ISO 8878 - Use of X.25 to provide OSI CONS

CCITT Rec. X.21, X.21 bis, X.30, X.31, X.32 - interfaces and ISDN terminal adaptor support

Keywords: ISO/IEC 10588, X.25 PLP, X.21, X.21 bis, OSI Connection‑mode Network Service, CONS, CSDN, ISDN, X.30, ISO/IEC 8208, LAPB, network interworking, packet over circuit.

ISO/IEC 10588:1993 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and who uses it

Related standards

Технические детали

ISO/IEC 8208:1995

Information technology — Data communications — X.25 Packet Layer Protocol for Data Terminal Equipment

ISO/IEC 10030:1990/Amd 3:1993

Information technology — Telecommunications and information exchange between systems — End System Routeing In…

ISO 7776:1986/Amd 1:1992

Information processing systems — Data communications — High-level data link control procedures — Description…

BS ISO/IEC 10588:1993

Information technology. Use of X.25 packet layer protocol in conjunction with X.21/X.21 bis to provide the OS…