SFC-Checker: Checking the correct forwarding behavior of Service Function chaining

Tschaen, Brendan; Zhang, Ying; Benson, Theo; Banerjee, Sujata; Lee, Jeongkeun; Kang, Joon-Myung

doi:10.1109/nfv-sdn.2016.7919488

Cited by 28 publications

(24 citation statements)

References 11 publications

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“…These tool can be employed in verifying the correctness of data‐plane, middleboxes, and control‐plane . Further, we have also studied some additional verification tools for their applications in different domains of SDN enable networks. While Tseng et al deal with security issues caused due to modifying forwarding rules and their priorities, Zhao et al present verification of forwarding rules added to the switches by the controller.…”

Section: Some Other Relevant Workmentioning

confidence: 99%

“…While Tseng et al deal with security issues caused due to modifying forwarding rules and their priorities, Zhao et al present verification of forwarding rules added to the switches by the controller. SFC Checker is used to model and verify the correctness of service function chaining (SFC) used in Network Function Virtualization (NFV). In Koley, Google presents Zero‐Touch Network (ZTN) as an extension of SDN with auto‐heal capabilities.…”

Section: Some Other Relevant Workmentioning

confidence: 99%

“…This transformed match fields are then stored in a hash‐map as the key and the associated action is stored as value is the hash‐map. In this way, SRV uses the global topology view to identify the original host and then replace the match fields of a malicious rule with actual values. SFC‐Checker: It aims to verify the forwarding behavior of service function chaining (SFC) used to provide Network Function Virtualization (NFV) in SDN . SFC defined the sequence of Network Functions (NFs) where the traffic should be routed dynamically.…”

Section: Some Other Relevant Workmentioning

confidence: 99%

“…SFC‐Checker: It aims to verify the forwarding behavior of service function chaining (SFC) used to provide Network Function Virtualization (NFV) in SDN . SFC defined the sequence of Network Functions (NFs) where the traffic should be routed dynamically.…”

Section: Some Other Relevant Workmentioning

confidence: 99%

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Formal modeling and verification of software‐defined networks: A survey

2019

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Summary Unlike traditional networking devices, control and management plane are decoupled from data plane in software‐defined networks (SDN). The logically centralized control and management plane facilitate dynamic orchestration of network resources, services, and policies by writing software programs. This provides much needed flexibility and programmability where networking rules and policies can be modified dynamically depending upon the application context. As the operation of network services entirely depends on a program, a small fault may induce several issues which can adversely affect the expected behavior of the network. Formal modeling and verification help in catching inconsistencies and existence of errors prior to the deployment of the programs that control the behavior of a network. In this paper, we provide a comprehensive survey of tools and techniques available in the literature for formal modeling and verification of SDN. These tools and techniques are classified based on their types, the components of SDN where they can be applied, and the design and development phase when they are utilized. In particular, their respective benefits and limitations are discussed in terms of ease of use, interfaces, and the ability to capture and verify intended network properties.

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Section: Some Other Relevant Workmentioning

confidence: 99%

Section: Some Other Relevant Workmentioning

confidence: 99%

Section: Some Other Relevant Workmentioning

confidence: 99%

Section: Some Other Relevant Workmentioning

confidence: 99%

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Formal modeling and verification of software‐defined networks: A survey

2019

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“…The final model is motivated by the vision of Open Flow [17] forwarding abstraction of the form <match, action>. This abstraction model has been borrowed from the existing modeling techniques [11,18] and most of the verification tools of forwarding behavior [5,6,19] rely on the models adhering this abstraction.…”

Section: Parsermentioning

confidence: 99%

A VNF modeling approach for verification purposes

Marchetto¹,

Sisto²,

Virgilio³

et al. 2019

IJECE

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<span lang="EN-US">Network Function Virtualization (NFV) architectures are emerging to increase networks flexibility. However, this renewed scenario poses new challenges, because virtualized networks, need to be carefully verified before being actually deployed in production environments in order to preserve network coherency (e.g., absence of forwarding loops, preservation of security on network traffic, etc.). Nowadays, model checking tools, SAT solvers, and Theorem Provers are available for formal verification of such properties in virtualized networks. Unfortunately, most of those verification tools accept input descriptions written in specification languages that are difficult to use for people not experienced in formal methods. Also, in order to enable the use of formal verification tools in real scenarios, vendors of Virtual Network Functions (VNFs) should provide abstract mathematical models of their functions, coded in the specific input languages of the verification tools. This process is error-prone, time-consuming, and often outside the VNF developers’ expertise. This paper presents a framework that we designed for automatically extracting verification models starting from a Java-based representation of a given VNF. It comprises a Java library of classes to define VNFs in a more developer-friendly way, and a tool to translate VNF definitions into formal verification models of different verification tools.</span>

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References

2017

Network Function Virtualization: Concepts and Applicability in 5G Networks

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SFC-Checker: Checking the correct forwarding behavior of Service Function chaining

Cited by 28 publications

References 11 publications

Formal modeling and verification of software‐defined networks: A survey

Formal modeling and verification of software‐defined networks: A survey

A VNF modeling approach for verification purposes

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