Search results for "OpenFlow"
showing 10 items of 10 documents
Firewall as a service in SDN OpenFlow network
2015
Protecting publicly available servers in internet today is a serious challenge, especially when encountering Distributed denial-of-service (DDoS) attacks. In traditional internet, there is narrow scope of choices one can take when ingress traffic overloads physical connection limits. This paper proposes Firewall as a service in internet service providers (ISP) networks allowing end users to request and install match-action rules in ISPs edge routers. In proposed scenario, ISP runs Software Defined Networking environment where control plane is separated from data plane utilizing OpenFlow protocol and ONOS controller. For interaction between end-users and SDN Controller author defines an Appl…
Performance evaluation of OpenFlow enabled Commodity and Raspberry-pi Wireless Routers
2017
Software defined network (SDN) allows the decoupling of data and control plane for dynamic and scalable network management. SDN is usually associated with OpenFlow protocol which is a standard interface that enables the network controllers to determine the path of network packets across a network of switches. In this paper, we evaluate openflow performance using commodity wireless router and raspberry pi with two different SDN controllers. Our test setup consists of wired and wireless client devices connected to openflow enabled commodity wireless router and raspberry pi. All clients used traffic generator tool to transmits data to a sink server host. The results are promising and paves the…
Towards a software-defined Network Operating System for the IoT
2015
The heterogeneity characterizing the Internet of Things (IoT) landscape can be addressed by leveraging network operating systems (NOS)s. Current NOS solutions have been developed for traditional infrastructured networks: they do not take the specific features of fundamental IoT components such as wireless sensor and actuator networks into account. Accordingly, in this paper an innovative integrated network operating system for the IoT which is obtained as the evolution of the Open Network Operating System (ONOS) is proposed. This has been appropriately extended to enhance the recently proposed SDN-WISE platform for supporting SDN in wireless sensor networks and let it interact with standard…
Toward Unified Control of Networks of Switches and Sensors Through a Network Operating System
2018
Wireless sensor networks (WSNs) are an integral part of an Internet of Things (IoT) ecosystem. In fact, a typical IoT service deployment considers an integrated network of switches and sensors (as well as actuators). In order to manage this heterogeneous network infrastructure, the use of software defined networking (SDN) technologies is anticipated. However, existing SDN-enabling technologies consider only isolated networks and there has been no concrete solution that treats the whole network in a unified way. In this paper, a network operating system is proposed as a way to address the above issue. Starting from the open network operating system, which currently supports only OpenFlow net…
Exploiting state information to support QoS in Software-Defined WSNs
2016
Software-Defined Networking (SDN) is a promising paradigm initially proposed for the wired networks which has the potential to change the way in which networks are designed and managed. Recently, its use has been extended to wireless infrastructure-less networks such as ad-hoc and wireless sensor networks. In this paper, we take inspiration from our previous work where a scheme that extends the SDN paradigm to WSNs - called SDN-WISE - was proposed. Differently from OpenFlow, SDN-WISE is stateful; accordingly in this paper we investigate how state can be used to support different levels of QoS in WSNs. In fact, state can be used to represent the level of congestion of a node and rules can be…
Wireless MAC Processor Networking: A Control Architecture for Expressing and Implementing High-Level Adaptation Policies in WLANs
2013
The current proliferation of unplanned wireless local area networks (WLANs) is creating the need for implementing different adaptation strategies to improve network performance under mutating and evolving interference scenarios. In this article, we envision a new solution for expressing and implementing high-level adaptation policies in WLANs, in contrast to the current approaches based on vendor-specific implementations. We exploit the hardware abstraction interface recently proposed by the wireless medium access control (MAC) processor (WMP) architecture and some flow-control concepts similar to the Openflow model for defining MAC adaptation policies. A simple control architecture for dis…
Programmatūras Definētas Tīklošanas tehnoloģijas darbības principi
2017
Līdz ar mākoņpakalpojumu sniedzēju un datortīklu skaita straujo pieaugumu, datortīklu prasības to projektēšanā un pārvaldībā kļūst aiz vien lielākas. Darbā tiek apskatītas programmatūras definētas tīklošanas darbības principi (SDN). Tas ir jauns tīkla dizaina princips, kura pamatdoma ir centralizēts kontrolieris kurš pārrauga tīkla darbību, kas tiek realizēts atdalot kontroles līmeni no datu līmeņa tradicionālajās tīkla iekārtās. Darbs sastāv no četrām nodaļām, kurās tiek apskatīta SDN daudzslāņu arhitektūra, iepazīti esošie SDN kontrolieru risinājumi, protokoli kādi tiek izmantoti un aprakstīts nepieciešamais minimums, lai izveidotu SDN tīklu mājas apstākļos.
OpenFlow komponenšu risinājumi
2016
Bakalaura darba nosaukums ir „OpenFlow komponenšu risinājumi”. Darbā tiek aprakstīta programmatūras definētā tīklošana,OpenFlow protokols un tā komponentes, kā arī tās tiek pārbaudītas virtuālā testa un reālā darba vidē.
SDN controllers security issues
2017
Software-Defined Networking (SDN) is essentially varying the way we design and manage networks, which makes a communication network programmable. In SDN, a logically centralized controller has straight control over the packet-handling functions of the network switches, using a standard, open API (Application Programming Interface) such as OpenFlow. OpenFlow is a broadly used protocol for software-defined networks (SDNs) that presents a new model in which the control plane is inattentive from the forwarding plane for the network devices. In SDN approach centralized entities called "controllers" perform like network operating systems run dissimilar applications that accomplish and control the…
Tietoturvan toteutus SD-WAN -operaattoripalveluissa
2017
Tutkielmassa selvitettiin vaihtoehtoja, joiden avulla palomuuraukseen liittyvä tekninen tietoturva voidaan toteuttaa uusissa SD-WAN -pohjaisissa verkottamisratkaisuissa ja niihin liittyvissä hybridiverkoissa operaattorin näkökulmasta. Palomuuraukseen liittyvää ratkaisua tulisi voida hyödyntää operaattorin asiakasverkoissa ja sen tulee skaalautua asiakkaiden käyttämien palveluiden mukaisesti. Tutkielmassa analysoitiin, kuinka SDN- ja NFV-teknologioita voidaan hyödyntää palomuurauksen toteutuksessa ja kannattaako palomuuraus toteuttaa SDN-pohjaisessa verkossa keskitetysti vai hajautetusti. Lisäksi pohdittiin, kuinka verkon hallinta voidaan toteuttaa keskitetysti, jotta jokaista verkon laitett…