标准摘要
[中文适用范围]: 此建议|其他规范参照采用国际标准。 这是通过参考 ITU-T Rec. 中定义的 CCR 服务在此类规范内完成的。 X.851 | ISO/IEC 9804。 对 CCR 服务的引用调用了本建议书 | ISO/IEC 9804 的程序。 国际标准造成外部影响。 此建议|国际标准在第 9 条中规定使用 ACSE、表示和会话服务来承载 CCR 语义。 只要这些服务的使用不与使用相同关联的其他 ASE 或 ASO 所创建的用户发生冲突,就可以使用此“参考”映射。 附件 B 定义了如何指定支持服务的不同用途,以便在参考映射不合适的情况下使用。 此建议|国际标准规定了实施这些程序的系统的静态和动态一致性要求。 它不包含可用于证明一致性的测试。 本建议书的这一版本 |国际标准指定了 CCR 协议版本 2,该协议利用会话数据分离功能单元来保护不属于 CCR 原子操作的数据。 ISO/IEC 9805 的 1990 版指定了 CCR 协议版本 1。 本建议书的 1993/1994 版 |国际标准规定了CCR协议版本1和CCR协议版本2,仅针对静态承诺功能单元。 本国际标准规定了支持以下功能单元的协议元素: a) 静态承诺; b) 动态承诺; c) 只读; d) 一阶段承诺; e) 取消; f) 重叠恢复。 [外文原描述]: This Recommendation | International Standard is to be applied by reference from other specifications. This is done within such specifications by reference to the CCR services defined in ITU-T Rec. X.851 | ISO/IEC 9804. A reference to a CCR service invokes the procedures of this Recommendation | International Standard to cause external effects. This Recommendation | International Standard specifies, in clause 9, a use of the ACSE, Presentation and Session services to carry the CCR semantics. This "reference" mapping can be used whenever the use of these services does not conflict with the user made by other ASEs or ASOs that are using the same association. Annex B defines how a different use of supporting services may be specified, for use where the reference mapping is inappropriate. This Recommendation | International Standard specifies the static and dynamic conformance requirements for systems implementing these procedures. It does not contain tests which can be used to demonstrate conformance. This edition of this Recommendation | International Standard specifies CCR protocol Version 2, which makes use of the Session Data Separation functional unit to protect data not belonging to the CCR atomic action. The 1990 edition of ISO/IEC 9805 specified CCR protocol Version 1. The 1993/1994 edition of this Recommendation | International Standard specified both CCR protocol Version 1 and CCR protocol Version 2, for the static commitment functional unit only. This International Standard specifies the protocol elements that support the following functional units: a) static commitment; b) dynamic commitment; c) read only; d) one-phase commitment; e) cancel; and f) overlapped recovery.
英文名称Information technology - Open Systems Interconnection - Protocol for the Commitment, Concurrency and Recovery service element: Protocol specification - Part 1: