This paper proposes XML-Defined Network policies (XDNP) a new high level language based on XML notation to describe network control rules in Software Defined Network environments. We rely on existing OpenFlow controllers specifically Floodlight but the novelty of this project is to separate complicated languageand framework-specific APIs from policy descriptions. This separation makes it possib...

Currently, there are many ways to save energy for the switch such as change the operating modes to low power modes: SLEEP PORT and SLEEP SWITCH when there is no traffic flowing through the Ethernet ports. The switch will be waked up to normal modes when traffic flows pass through it. However, the changes of the modes of the OpenFlow Switch will create DELAY-TIME. If we know DELAY-TIME, then we ...

Viele der klassischen Techniken, mit denen die Netzsicherheit in physikalischen Systemen erhöht werden, lassen sich nicht oder nur mit großem Aufwand in virtualisierten Umgebungen einsetzen. So ist es prinzipbedingt nicht möglich, virtuelle Systeme auf einem Hostsystem physikalisch voneinander zu trennen, um deren Kommunikation durch eine Firewall filtern zu können. Auch Angriffe auf den Layern...

RouteFlow is a platform for providing virtual IP routing services in OpenFlow networks. During the first year of development, we came across some use cases that might be interesting pursuing in addition to a number of lessons learned worth sharing. In this paper, we will discuss identified requirements and architectural and implementation changes made to shape RouteFlow into a more robust solut...

Nowadays data centers are increasingly becoming larger and dynamic due to virtualization. Software-Defined Networking is the leading approach to network virtualization and flexible management. The wide variety of hardware implementations have brought strong heterogeneity to the market of networking devices which are different in terms of OpenFlow features and performance. In this paper we addre...

With an increase in number of software defined network (SDN) deployments, and OpenFlow consolidating as the protocol of choice for controller-switch interactions, a need to analytically model the system for performance analysis is increasing. An attempt has previously been made in [1] to model the system considering both a controller and a switch as an M/M/1 queue. The method, although useful, ...

Software-defined network (SDN) is a new programmable networking designed to perform tasks easier by enabling network administrators to add network control via a centralized control platform and open interfaces. Common network use procedures such as traffic shifts, troubleshooting and various types of device configuration. Thus devices are needed to reconfigure with the network, in order to crea...