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Data centers often hold tens to hundreds of thousands of servers in order to offer cloud computing services at scale. Ethernet switching and IP routing have their own advantages and limitations in building data center networks. Recent research, such as PortLand and BCube, has proposed scalable data center network designs. A common feature of these designs is that their addressing and routing are customized...
Our measurements on production data center traffic together with recently reported results suggest that data center networks suffer from long-lived congestion caused by core network over subscription and unbalanced workload placement. In contrast to traditional traffic engineering approaches that optimize flow routing, in this paper, we explore the opportunity to address the continuous congestion...
In this paper, we propose a network-engineering (NE) approach for improving the availability of light paths over WDM networks. By rearranging the availability of links, the average availability of light paths can be improved without sacrificing performance in terms of blocking probability and investing extra capital expenditures (CAPEX) and operational expenditures (OPEX).
To develop an energy-efficient routing protocol becomes one of the most important and difficult key tasks for wireless sensor networks. Traditional Rumor Routing is effective in random path building but winding or even looped path is prone to be formed, leading to enormous energy wasting. Clustering Rumor Routing proposed in this paper has advantages in energy saving by making full use of three features-clustering...
As the Internet becomes a critical infrastructure component of our global information-based society, any interruption to its availability can have significant economical and societal impacts. Although many researches tried to improve the resilience through the BGP policy-compliant paths, it has been demonstrated that the Internet is still highly vulnerable when major failures happen. In this paper,...
The publicly available BGP vantage points (VPs) have been heavily used by the research community to build the Internet autonomous system (AS) level topology, which is a key input to many applications, such as routing protocol design, performance evaluation and network security issues. However, a detailed study on the eyeshots of these VPs has received little attention before. In this paper, we inspect...
Wireless ad-hoc sensor networks consist of small nodes with sensing, computing, and communicating capabilities. Energy deficiency is a key problem of these kinds of networks. Many routing, power management, and data dissemination protocols have been specifically designed for them where energy awareness is a chief design issue. This paper proposes a new probabilistic agent-based energy efficient routing...
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