论文部分内容阅读
Ｘ．４００协议是ＯＳＩ应用层最为成熟的一套关于信报处理的应用协议，目前已涌现大量的Ｘ．４００协议实现。为了验证这些协议实现的正确性及相互连接、相互操作的能力，需要对Ｘ．４００协议实现进行一致性测试。抽象语法表示法─—ＡＳＮ．１作为ＯＳＩ应用层协议描述所使用的一种形式化语言，不仅在Ｘ．４００协议实现中不可缺少，而且在对Ｘ．４００进行一致性测试中扮演举足轻重的作用。本文旨在分析ＡＳＮ．１工具的应用，并提出“ＯＳＩ网络一致性测试系统”中ＡＳＮ．１工具实现所采取的一种扩展内部表示结构ＥＮＯＤＥ树形表示法。
X. 400 protocol is the most mature set of OSI application layer on the application of the letter processing protocol, a large number of X has emerged. 400 agreement to achieve. In order to verify the correctness of the implementation of these protocols and the ability to interconnect and interoperate with each other, X needs to be implemented. 400 protocol to achieve conformance testing. Abstract Syntax Notation - ASN. 1 As a formal language used in OSI application layer protocol descriptions, not only in X. 400 agreement is indispensable, but also on the X. 400 conformance testing plays a decisive role. This article aims to analyze ASN. 1 tool and put forward ASN in “OSI Network Conformance Test System”. A tool implemented to extend the internal representation of the structure ENODE tree representation.