ISO IEC ISP 10613-17-1995 PDF

Full title and description

Information technology — International Standardized Profile RA — Relaying the Connectionless‑mode Network Service — Part 17: Definition of profile RA54.1111, relaying the Connectionless‑mode Network Service between FDDI LAN subnetworks and PSDNs using virtual calls over a PSTN leased line permanent access.

Abstract

Defines the RA54.1111 profile applicable to interworking units that relay the OSI connectionless‑mode network service between FDDI local area network subnetworks and public switched data networks (PSDNs) when virtual calls are carried over a PSTN leased‑line permanent access. The profile specifies the combination of OSI base standards, options and conformance requirements necessary to implement that interworking function.

General information

• Status: Withdrawn.
• Publication date: December 1995 (published edition 1995‑12; national catalogs show 21 Dec 1995).
• Publisher: ISO/IEC (prepared under ISO/IEC JTC 1).
• ICS / categories: 35.100.05 (Multilayer applications / OSI-related profiles).
• Edition / version: Edition 1 (1995).
• Number of pages: 7 pages (first edition).

Scope

This part of ISO/IEC ISP 10613 specifies the RA54.1111 profile: it is intended for interworking units that implement a network‑relay function to carry the connectionless‑mode network service between FDDI LAN subnetworks and PSDNs when virtual call access is provided via a PSTN leased‑line permanent access. The scope is limited to the combination of OSI standards and options needed to ensure interoperability and conformance for that specific interworking scenario.

Key topics and requirements

• Definition of profile RA54.1111 (mapping the required OSI base standards, options and parameters for the profile).
• Interworking rules for relaying connectionless‑mode network service between FDDI LANs and PSDNs.
• Requirements for carrying virtual calls over PSTN leased‑line permanent access (media/access specific behaviour).
• Static conformance and interoperability requirements for interworking units (IUs) implementing the profile.
• Normative references to relevant OSI, LAN and PSDN base standards and protocols (profile‑level normative list).

Typical use and users

Intended users include standards practitioners, system architects and implementers of interworking units or gateways that must relay OSI connectionless network service between FDDI LAN environments and public data networks using virtual call leased‑line access. Also used by test laboratories defining conformance test cases and by procurement/specification authors who need a fixed, interoperable profile.

Related standards

This document is one part of the multi‑part ISO/IEC ISP 10613 series (International Standardized Profile RA — Relaying the Connectionless‑mode Network Service). Related parts cover subnetwork‑independent requirements, LAN and PSDN subnetwork dependent requirements, and multiple profile definitions for different LAN/PSDN combinations (e.g., parts 1–19 of the 10613 series). Many parts of the series have subsequently been withdrawn.

Keywords

ISO/IEC ISP 10613, RA54.1111, connectionless‑mode network service, network relay, interworking unit, FDDI, PSDN, PSTN leased line, profile, OSI.

FAQ

Q: What is this standard?

A: Part 17 of ISO/IEC ISP 10613 defines the RA54.1111 profile for relaying the OSI connectionless‑mode network service between FDDI LAN subnetworks and PSDNs when virtual calls use a PSTN leased‑line permanent access.

Q: What does it cover?

A: It covers the profile definition — the specific combination of OSI base standards, options, parameters and conformance requirements required to implement the relaying function for the described FDDI↔PSDN scenario. It does not cover unrelated LAN types or other access technologies.

Q: Who typically uses it?

A: Implementers of interworking units/gateways, systems architects, test houses, and standards authors who need an interoperable profile for FDDI‑to‑PSDN relaying using PSTN leased‑line access.

Q: Is it current or superseded?

A: The standard is recorded as Withdrawn in the ISO lifecycle (stage: Withdrawal of International Standard [95.99]). National catalogs show withdrawal entries for this part (dates in national catalogs vary). For official status see the ISO record.

Q: Is it part of a series?

A: Yes — it is one part of the ISO/IEC ISP 10613 series (multiple parts define profiles and subnetwork requirements for relaying the connectionless‑mode network service).

Q: What are the key keywords?

A: RA54.1111, FDDI, PSDN, PSTN leased line, network relay, connectionless‑mode, interworking unit, ISO/IEC ISP 10613.