Formal Specification of SNMP MIB's Using Action Semantics: The Routing Proxy Case Study
نویسندگان
چکیده
The usual way to describe the semantics of MIB objects is just to give an informal English text explaining each object’s behavior. Informal descriptions are vague and incomplete. They are open to misinterpretation and may lead to inconsistent implementations. In this work we propose the use of Action Semantics as a simple and powerful tool for the formal description of the behavior of MIB objects. Formal descriptions may be used as the basis for systematic development, verification, and automatic generation of implementations. In our approach, operations for each MIB object can be simply added to the existing ASN.1 MIB descriptions, without implying in any modification of current standards. We initially define the semantics of the core SNMP server, as well as the snmpget and snmpset applications. This description is extensible, allowing the inclusion of any MIB. As a case study, we define the semantics of the experimental SNMP Routing Proxy MIB.
منابع مشابه
Web Service Choreography Verification Using Z Formal Specification
Web Service Choreography Description Language (WS-CDL) describes and orchestrates the services interactions among multiple participants. WS-CDL verification is essential since the interactions would lead to mismatches. Existing works verify the messages ordering, the flow of messages, and the expected results from collaborations. In this paper, we present a Z specification of WS-CDL. Besides ve...
متن کاملFormal Specifications of Trusted OLSR Protocol of Ad hoc Network in Z
A Mobile Ad hoc Network is a network of mobile nodes operating in an infrastructure-less network. These nodes not have the defense rendered by firewalls in infrastructure-based networks. Trust oriented system aids to improvise this situation. So, the incorporation of trust in routing decisions yields a more secure and reliable framework for such type of networks. As if any suggested model does ...
متن کاملObject-Oriented Action Semantics Specifications
Action Semantics is a framework for the formal specification of programming languages. Two different, recently proposed approaches provide modularity to the framework, allowing for specification reusability and extension. In this work, we analyze the previous approaches, and introduce Object-Oriented Action Semantics, a new form of modular organization of Action Semantics descriptions. Object-o...
متن کاملFormal Semantics & Verification for the Border Gateway Protocol
Internet Service Providers (ISPs) use the Border Gateway Protocol (BGP) to exchange routing information. ISPs use a variety of formalisms, checkers, and simulators to avoid BGP configuration errors. However, these tools are based on simplified semantics of BGP or no semantics at all, and therefore they cannot guarantee the absence of router misconfigurations. Meanwhile, BGP router misconfigurat...
متن کاملA Critical Analysis and Treatment of Important UML Diagrams Enhancing Modeling Power
Requirements analysis and design specification are serious issues in systems development because of the semantics involved in transformation of real world problems to computer software systems. Although unified modeling language (UML) is now accepted as a de facto standard for design and specification of object oriented systems but its structures have various disadvantages. For example, it lack...
متن کامل