Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 39 for “"OpenFlow"”.
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An algorithmic approach to OpenFlow ruleset transformation
In an ideal development cycle for an OpenFlow application, a developer designs a pipeline to suit their application's needs and installs rules to that pipeline. Their application will run on any OpenFlow switch, whether software or hardware based. A network operator deploying this application would …
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An openflow-based wireless user management system
… by analyzing the network load from the Openflow statistics, as well as, the wireless information collected from the associated users. In order to analyse the behaviour of the proposed user migration algorithm, we evaluate the system under scenarios with different traffic load and user …
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Controlling Race Conditions in OpenFlow to Accelerate Application Verification and Packet Forwarding
OpenFlow is a Software Defined Networking (SDN) protocol that is being deployed in critical network systems. SDN application verification takes an important role in guaranteeing the correctness of the application. Through our investigation, we discover that application verification can be very …
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Advancing Deep Packet Inspection in SDNs: A Comparative Analysis of P4 and OpenFlow Programmability
… P4 programming language against the conventional OpenFlow protocol.OpenFlow, while foundational in SDN’s evolution, exhibits notable constraints in DPI’s domain, primarily due to its limited packet inspection depth, confined largely to the Transport, Network, Data Link and Physical layers. In …
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Novel Infrastructure Quantification for Utility of Virtualized Network Debugging using OpenFlow as Visualization of Packets and Software Defined Networking
… ports with a global view of the network using OpenFlow protocol as the filtering switch for span traffic. Furthermore, we also created a utility of deployment function for a network debugging scheme to evaluate the usability of locations and numbers of flow-separation based analysis nodes. We …
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Implementing MPLS with label switching in software-defined networks
… core. This is an excellent use case for MPLS on OpenFlow. But, while there have been other implementations of MPLS in OpenFlow, they abandon the spirit OpenFlow by requiring sophisticated hardware. This thesis discusses our hybrid-OpenFlow implementation of MPLS that requires only commodity …
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Optimizing the POX controller with database systems
… a logically centralized controller and a set of OpenFlow switches. Network administrators can program OpenFlow switches to behave like routers, firewalls, load balancers, etc. by building different kinds of applications on top of the controller. On one hand, the controller maintains the …
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Optimising Networks For Ultra-High Definition Video
… of current static video delivery systems, an OpenFlow based migration system is proposed. This system enables an almost seamless migration of a transcoder or ALM node, while delivering real-time ultra-high definition content. Further to this, a novel heuristic algorithm is presented to …
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Development of scalable hybrid switching-based software-defined networking using reinforcement learning
… belonging to a new flow has to be transported, OpenFlow switch has to interact with the logically centralized SDN controller through southbound OpenFlow Application Programming Interface between OpenFlow switch and the logically centralized SDN controller. This results to an increase in …
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Development of scalable hybrid switching-based software-defined networking using reinforcement learning
… belonging to a new flow has to be transported, OpenFlow switch has to interact with the logically centralized SDN controller through southbound OpenFlow Application Programming Interface between OpenFlow switch and the logically centralized SDN controller. This results to an increase in …
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Transparent data plane failure tolerance for software defined networks
… in existing protocols. More specifically in OpenFlow, this is achieved through fast fail-over groups that monitor health of ports and route traffic along alternative ones when the primary port is unavailable. However, configuring fast fail-over groups in data plane has required all logic to …
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An attack model, language, and injector for the control plane of software-defined networks
… injecting attacks into the control plane of the OpenFlow-based SDN architecture. First, we define an attack model that models the components in the SDN network and the assumptions about an attacker's capabilities against control plane messages. Second, we define an attack language that allows for …
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SDNoC 42: modelo de SDNoC baseada em otimização de caminhos mínimos
… the network’s topological potential through the OpenFlow protocol. The results obtained are promising. Using the Dijkstra algorithm and increasing the number of cores makes optimizing communication latency in 100% of cases possible compared to the XY algorithm.
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High Availability and Scalability Schemes for Software- Defined Networks (SDN)
… issues that are inherent in the current OpenFlow specification and SDN architecture; and solve the problems using practical techniques. With extensive experiments using real systems, we have identified that iii the significant issues of HA and scalability in operations of a SDN such as …
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Reliable and secure information and communications systems for electrical utilities
… data. To make this approach more scalable, an OpenFlow Software-Defined Network (SDN) may be used. Vulnerabilities in this approach are identified and the attack surface minimised. Configuration and change as a vector for vulnerability is mitigated by automating provisioning, based on IEC 61850 …
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Phurti: application and network-aware flow scheduling for MapReduce
… job-level network traffic information and the OpenFlow-based switches to learn about network topology. Phurti implements a novel heuristic called Smallest Maximum Sequential-traffic First (SMSF) that uses collected application and network information to perform traffic scheduling for MapReduce …
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Inter-flow consistency: novel SDN update abstraction for supporting inter-flow constraints
… we implement a prototype system with a Mininet OpenFlow network and Ryu SDN controller to evaluate the performance of our approach.
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Improving QoE of Video Streaming using Network Awareness
… our approach in a geographically distributed OpenFlow testbed using GENI. We also present a model which would utilize the client characteristics to provision quality-of-service. These model have been tested on a number of representative video datasets and various end client adaptation schemes …
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