共查询到18条相似文献,搜索用时 125 毫秒
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本文分析了新的网络存储协议--iSCSI协议,并给出了Linux 下 iSCSI协议实现的一种软件模型,进而搭建于iSCSI的存储系统,对其进行了性能测试,并指出了优化iSCSI系统性能的途径。 相似文献
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针对协议测试中,状态机描述、测试集成环境和被测实现彼此独立带来的问题,提出了在可视化编程环境下利用抽象状态机模型和桩函数结合实现协议一致性测试方法。在分析抽象状态机测试理论的基础上,给出基于抽象状态机和remoting技术的协议分布式测试模型。以抽象状态机语言描述简单文件传输协议为例,采用分布式测试模型,实现了被测协议的远程一致性测试。 相似文献
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邻居发现协议的形式化测试 总被引:5,自引:0,他引:5
Neighbor Discovery(邻居发现 ,ND)协议是下一代互联网协议 IPv6协议中的一个重要组成部分 .随 IPv6在我国的推广应用 ,各种设备蜂拥而来 ,由于各协议实现厂家对协议的不同理解 ,通信设备的协议非一致性问题将日趋严重 ,为了检查各个不同生产厂家的实现是否与标准文本相一致 ,进而确保不同厂家的 IPv6实现之间能够互操作 ,提出了一种协议一致性测试的方法 ,并开发了 IPv6协议实现一致性测试系统 .给出了该测试系统的结构 ,并利用自定义的一种形式化描述语言 ,实现了邻居发现协议一致性测试集的形式化 .并通过对 Solaris8上的 IPv6协议实现进行测试 ,给出测试报告和结果分析 . 相似文献
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IPv6协议一致性测试系统 总被引:1,自引:1,他引:1
随着IPv6协议在我国的推广应用,各种相关设备蜂拥而来,由于各协议实现厂家对协议的不同理解,使得通信设备的协议非一致性问题日趋严重,为检查各个不同生产厂家的IPv6实现是否与标准文本相一致,进而确保不同厂家的IPv6实现之间能够互操作,开发一种IPv6协议一致性测试系统,并利用自定义的一种形式化描述语言,实现IPv6相关协议一致性测试集的形式化,文中给出该测试的结构,通过一个测试例介绍测试集的形式化和测试实现过程,使用该测试系统对多种IPv6协议实现进行测试,发现许不一致问题,为协议实现厂家提供了修改意见,作为例子,给出一种UnixIPv6邻居发现协议实现的测试结果分析。 相似文献
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Constant C. Jeron T. Marchand H. Rusu V. 《IEEE transactions on pattern analysis and machine intelligence》2007,33(8):558-574
In this paper, we describe a methodology integrating verification and conformance testing. A specification of a system - an extended input-output automaton, which may be infinite-state - and a set of safety properties ("nothing bad ever happens") and possibility properties ("something good may happen") are assumed. The properties are first tentatively verified on the specification using automatic techniques based on approximated state-space exploration, which are sound, but, as a price to pay for automation, are not complete for the given class of properties. Because of this incompleteness and of state-space explosion, the verification may not succeed in proving or disproving the properties. However, even if verification did not succeed, the testing phase can proceed and provide useful information about the implementation. Test cases are automatically and symbolically generated from the specification and the properties and are executed on a black-box implementation of the system. The test execution may detect violations of conformance between implementation and specification; in addition, it may detect violation/satisfaction of the properties by the implementation and by the specification. In this sense, testing completes verification. The approach is illustrated on simple examples and on a bounded retransmission protocol. 相似文献
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Formal methods for testing the conformance of a software system to its specification are considered. The interaction semantics
determines the testing capabilities, which are reduced to the observation of actions and refusals (absence of actions). The
semantics is parameterized by the families of observable and unobservable refusals. The concept of destruction as a prohibited
action that should be avoided in the course of interaction is introduced. The concept of safe testing, the implementation
safety hypothesis, safe conformance, and generation of a complete test suite based on the specification are defined. Equivalences
of traces, specifications, safety relations, and interaction semantics are examined. A specification completion is proposed
that can be used to remove from the specification irrelevant (not included in the safely testable implementations) and nonconformal
specification traces is proposed. The concept of total testing that detects all the errors in the implementation (rather than
at least one error as is the case in complete testing) is introduced. On the basis of the analysis of dependences between
errors, a method for the minimization of test suites is proposed. The problem of preserving the conformance under composition
(the monotonicity of conformance) is investigated, and a monotone transformation of the specification solving this problem
is proposed. 相似文献
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协议实现的一致性测试是保证网络设备之间互连的重要手段。LDP协议是MPLS的标记分发协议,本文在对LDP协议进行分析的基础上生成了测试集,选择了测试方法,并在现有测试系统Anvl的基础上设计和实现了LDP一致性测试程序。 相似文献