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Current network protocols are exceedingly strict, making the administrative duties of network providers difficult. The switches that control a network rely on stringent definitions, usually defined by the company who designed the switch, with which they can forward packets. Software Defined Networking (SDN) is a concept which allows control over the operations of a switch via remote software applications...
During the past decade, various novel data center network (DCN) architectures have been proposed to meet various requirements of large scale data centers. In existing works that consider server-centric DCN architectures, the lengths of a server-to-server-direct hop and a server-to-server-via-a-switch hop are assumed to be equal. We propose the concept of Normalized Switch Delay (NSD) to distinguish...
Existing Data Center Network (DCN) architectures are classified into two categories: switch-centric and server-centric architectures. In switch-centric DCNs, routing intelligence is placed on switches, each server usually uses only one port of the Network Interface Card (NIC) to connect to the network. In server-centric DCNs, switches are only used as cross-bars, and routing intelligence is placed...
We consider the design and analysis of Data Center Network (DCN) architectures for interconnecting dual-port servers. Unlike existing works, we propose the concept of Normalized Switch Delay (NSD) to distinguish a server-to-server-direct hop and a server-to-server-via-switch hop, to unify the design of DCN architectures. We then consider a fundamental problem: maximizing the number of dual-port servers,...
In this study six different mode switching techniques (i.e. timeout mode switching, non-preferred hand mode switching, barrel button mode switching, pressure mode switching, tilt mode switching and azimuth mode switching) based on multiple parameters pen input are proposed. The results indicate that the techniques utilizing tilt angle and azimuth offer faster performance than the others.
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