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Due to the expensive hardware and complex management of the traditional middlebox, a concerted effort towards the virtualized middlebox has been launched in both academia and industry. In this paper, we propose a unified middlebox model, MBBrick, which is composed of three operation modules (classifier, rewriter, forwarder) and a control module (the mcontroller). We then design a language, MG, to...
As an important way to verify software safety, software safety test has caught more attentions in practice. However, it is still an open question that how engineers could make software safety test more efficient. Currently, FTA based method is one of the approaches in software safety test, but it can not utilize the finished software test results, and can not be determined the priorities of all the...
At present, few methods of creating conceptual architecture have been proposed. What's more, they can't meet the requirements of dynamic Internet environment or software reuse. However, a newly proposed method in paper can adapt to various types of changes in the dynamic environment and can make design and implementation more convenient than traditional methods. Therefore, this paper verifies this...
The applications based on traditional digital cameras have been limited by distance, cost and networking. Gigabit Ethernet is a data transmission standard based on the IEEE 802.3 protocol, brings several benefits to image transmission. In this paper, we compare the main features of Gigabit Ethernet and traditional digital camera interfaces. And, we design a high speed image acquisition system which...
Biological systems exhibit remarkable adaptation and robustness in the face of widely changing environments. Currently speaking, we often imitate the properties of biological systems. Based on this thought, it also exists the analogous situation in the WSNs (wireless sensor networks). Survivability is the ability to provide essential services in the presence of attacks and failures, and recover full...
Software aging related failures can be prevented by applying software rejuvenation technology. But the restart operation in the software rejuvenation phase makes the system unable to provide services, which leads to system unavailability. The software rejuvenation model with pre-start technology is therefore proposed to reduce downtime and improve availability by switching between active copy and...
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