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In this paper, we implemented OpenFlow scheduled bundle in the Open vSwitch software switch and evaluated its performance in SDN testbed networks under different scenarios. The scheduled bundle is a very new mechanism proposed in the OpenFlow protocol for achieving consistent updates among multiple SDN switches. However, this feature has not been supported in any hardware SDN switches or any software...
In this paper, we designed, implemented, and evaluated the performance of software OpenFlow flow counters in a bare metal commodity switch. Normally, flow counters are implemented in hardware for line-rate operations and their number needs to be very large to support a large flow-based SDN network. Although these hardware counters operate very fast, they greatly increase the cost of an OpenFlow switch...
In this paper we try to combine HDR Mapping and Maxwell renderer, which is simulating real light physical characteristics, by collecting, processing and applying HDR Mapping. Specifically, we combine many methods to realize the layer rendering, including setting the parameter that is the simulation of real world, adding the HDR mapping rendering and simulating the effect of video lens. Therefore,...
The detailed realization of VSAT satellite communication automated test system based on. Net platform is analyzed and discussed in this paper, focusing on design of the flexible and reliable testing process and deep analysis of the system expandability specific to the characteristic of the VSAT satellite communication system. Proved successfully in practice, the automated test system has reliable...
This paper carries out research on vulnerability association problem in the complicated network and proposes the concept of "multi-node" vulnerability. By applying graph theory and case template to represent the "multi-node" vulnerability and reason the attack path, this paper describes how to reason the propagation path of the "multi-node" vulnerability and asses the...
This paper considers the influence of ERP's implementation on the enterprise internal control effect with the method of empirical, It is based on the data of the enterprises which implement ERP in 2008 as the research object, take internal control's three big goals as the starting points and are in view of ERP implementation process in correlation factor. The findings suggest that ERP's brand and...
Accurate localization and navigation are indispensable for mobile agents to walk in large-scale indoor public space, such as intelligent building and disaster rescue. In this paper, an intelligent localization and navigation system called ISILON is designed and developed. The system consists of a mobile terminal and multiple sensor nodes (also called landmarks) installed in the environment. The mechanism...
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