Deployment of Blockchain Technology in Software Defined Networks: A Survey

Abstract

With the exponential increase in the complexity of network management and configuration, Software Defined Networking (SDN) has emerged as a promising network paradigm. SDN aims to efficiently transform network architecture and operations to be agile, and effectively enrich the functionality of underlying network elements, such as routers and switches, by decoupling the control plane from the data plane. In SDN, the network intelligence is centralized in a software entity so-called SDN controller, which enables network administrators to dynamically manage, secure, and optimize network resources and programmatically shape all entire network traffic pattern. Despite the impressive benefits SDN has brought to network architecture, it introduces new security challenges and prompts different implementation strategies to spread attack vectors. This paper comprehensively describes the utilization of Blockchain technology to secure and protect SDN architecture and discusses the feasibility of integrating the revolutionary technologies of SDN and Blockchain to provide confidentiality, integrity, and availability to network infrastructure.

Towards Software-Defined-Networking-based IoT: A Systematic Literature Review on Management Frameworks and Open Challenges

“…1) Fault Tolerance: In IoT networks, particularly in largescale networks, it is theoretically impossible to operate when facing networking and other failures. Due to the SDN programmability, the network mechanism could be configured [19] OpenFlow (OF),NFV, Middleware [20] OF,NFV, Middleware [21] NFV [22] NFV [23] NFV, Middleware [24] NFV,OF [25] NFV,OF [26] Middleware,OF [27] NFV, Middleware,OF [28] OF,NFV [29] NFV, Middleware [30] Middleware NFV Based [31] Blockchain [32] Blockchain [33] Middleware [34] Middleware [35] Middleware [36] Middleware, NFV [37] Blockchain [38] Blockchain [39] Blockchain [40] Blockchain [41] OF [42] Blockchain [43] Blockchain [44] Blockchain [45] NFV [46] Middleware [47] Blockchain [48] Blockchain [49] Blockchain [50] NFV,OF [51] NFV,OF [52] Edge Computing, NFV [53] NFV [54] NFV [55] NFV,Blockchain [56] Blockchain [57] NFV [58] Blockchain [59] NFV,Middleware [60] Middleware,Blockchain Our Survey NFV, Middleware, OF, Blockchain efficiently to attain fault tolerance and maintain the IoT networks on a large scale during failure …”

Blockchain-assisted access for federated Smart Grid domains: Coupling and features

“…The maintenance can be done from a gradual standpoint, allowing PDPs to temporally delegate their actions to other active PDPs whereas software components and resources are updated. Additionally, the Software Defined Networking (SDN) technology can be leveraged at this point, to dynamically manage and optimize network resources between L2 and L3 [66]. Dependability in the three layers is also guaranteed since the own decentralization aids to keep data copies in both L2 and L3, and delegated access when PDPs present casual faults.…”

Efficient Concurrent Execution of Smart Contracts in Blockchain Sharding

“…Blockchain technology can be described as a distributed append-only ledger over a large peer-to-peer (P2P) network and has demonstrated great promise for utility in several fields including the Internet of ings (IoT), financial assets, the sharing economy, and copyright maintenance [1][2][3]. However, with the increasing transaction scale on the blockchain, the performance defects of the current blockchain platform are gradually being exposed (e.g., low throughput and lack of concurrency) [4][5][6], and the current platform is increasingly unable to meet the needs of largescale applications.…”

“…is method makes full use of the information resources of SC, records real-time statistics of the SC feature information that conflicts occur in the TSM-Module, and collects the feature information as the next important reference factor to resolve the SC conflict. (2) We design a clustering technology for SCTs. First, the SCTs are initially partitioned by traversing the collected feature information.…”