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Providing Technical Research In The Foundation Of Cloud Computing Network

Posted on:2012-09-13Degree:DoctorType:Dissertation
Country:ChinaCandidate:X Z ChenFull Text:PDF
GTID:1228330374999609Subject:Electromagnetic field and microwave technology
Abstract/Summary:PDF Full Text Request
Cloud computing, the long-held dream of computing as a utility, has the potential to transform a large part of the IT industry, making software even more attractive as a service and shaping the way IT hardware is designed and purchased. Developers with innovative ideas for new Internet services no longer require the large capital outlays in hardware to deploy their ser-vice or the human expense to operate it. They need not be concerned about over-provisioning for a service whose popularity does not meet their predic-tions, thus wasting costly resources, or under-provisioning for one that becomes wildly popular, thus missing potential customers and revenue. Moreover, com-panies with large batch-oriented tasks can get results as quickly as their pro-grams can scale, since using1,000servers for one hour costs no more than using one server for1,000hours. This elasticity of resources, without paying a premium for large scale, is unprecedented in the history of IT.Most of information and computing will located in large-scale datacen-ters, along with the popularity of cloud computing. The underlying net-works for cloud computing contains intra-datacenter, inter-datacenter and user-datacenter. There are a lot of research focusing on intra-datacenter connectiv-ity. However, we found that the connectivity ingress and egress datacenter have more challenges need to face, such as the user-datacenter and inter-datacenter share only one connection from/to core router in datacenter. The traffic from user and other datacenter will grab the bandwidth resource with each other. It is necessary to setup private connectivity for inter-datacenter traffic. Inter-datacenter connectivity is mostly for information synchronization, backup and disaster recovery and unified computing. Consequently, our first work is focus-ing on the virtual private network to provide inter-datacenter connectivity.Furthermore, the mobile application is emerging as key role in cloud com- puting. It means user always connect with datacenter through wireless net-work. Among all wireless technology, wireless mesh network is one of most cost-effective ways. Therefore, we study the wireless mesh network to pro-vide user-datacenter access as well, including the deployment of cloud agent in wireless access networks to enhance datacenter access control and to enhance the capacity assignment of wireless channel by considering interference.Finally, the IT resources in datacenter and network resources are utilized individually. There is no effective integration, unified management, resulting inefficient operation. It requires a unified service platform to allocate all net-work resources and IT resources (including computing resources and storage resources) in a integrated way. Based on this technical requirement, we pro-pose service plane based on ASON (Automatically Switched Optical Network) to management the network resource and IT resource, ensuring the efficiency of the whole network.
Keywords/Search Tags:Cloud Computing, Datacenter, L1VPN, Hose Model, Service Plane, Interference-aware capacity assignment, Caching, integrated allocation of resource
PDF Full Text Request
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