ICACT20230249 Slide.16
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thank you
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ICACT20230249 Slide.15
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In my opinion, the traditional wired data center is faced with such problems as difficult deployment and complicated wiring, and the wireless data center network and the combination of wired and wireless data center network will become the main research direction in the future. However, at present, the signal transmission of wireless data center is realized by directional horn antenna, and the rotation delay of horn antenna is a part of the information transmission delay, as well as the signal occlusion and the distance limit of signal transmission. Solving these problems has become the key to the development of wireless data center network
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ICACT20230249 Slide.14
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part three conclusion
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ICACT20230249 Slide.13
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VBNet is a hybrid DCN architecture based on VLC visible light technology. It use Bcube as a wired DCN, Bcube is a server-centric data center, and has extended it. By connecting all servers through VLC according to the interconnection rules, the seamless integration of wired and wireless hybrid VBNet is realized. By using VLC, the server is connected into a small-world structure to construct a more scalable topology. VLC reduces the average path length and greatly improves network performance.As shown in the figure 7, VBNet hybrid network structure.
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ICACT20230249 Slide.12
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4.Wired wireless hybrid data center network architecture .
Diamond is a new hybrid wired and wireless network architecture that guarantees wireless high availability and efficiency, and provide a high performance data center network transmission. this paper proposes to deploy additional wireless network card on the server instead of limiting wireless device to the rack-top. In order to avoid the interference between the dense wireless devices in the horizontal two dimensional plane a number of Ring Reflection Spaces (RSS) are proposed to make the wireless devices sparsely distributed in the whole three-dimensional Space
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ICACT20230249 Slide.11
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Comb is a new wireless data center network topology. The topology,which is a large network and built by combining several basic network units. Because the complete network architecture is very similar to comb, so it is named Comb structure. The Comb model is a model of a multilayered honey-comb structure that consists of a single layer of celllike structrue interlaced.
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ICACT20230249 Slide.10
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3.Wireless data center network architecture
ExCCC-DCN is a data center network designed based on ExCCC network. It inherits the features of ExCCC structure, such as low cost, low energy consumption, large data through-put and strong scalability. During the wireless transformation of EXCCC-DCN, it is considered to remove all the original switches and wired links in the network and only keep the top switch inside each rack to connect the server and the top antenna inside the rack.
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ICACT20230249 Slide.09
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CAN-Circle is a network topology based on direct interconnection of two - port servers. If there are N host nodes ，they are connected to the transmission and communication media respectively, forming a circular basic unit structure. Several virtual machines are installed inside each host node.
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ICACT20230249 Slide.08
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FleCube is an architecture for flexible connectivity on multi-port servers that do not use any switches. FleCube is constructed recursively by using complete graph based on multi -port partition of server. FleCube makes the data center network has the advantages of flexible scale, small diameter, large bisect wide width and small bottleneck.
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ICACT20230249 Slide.07
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2.Data center with server as the core
MDCent is based on BCube structure for inter-module server interconnection, and adopts generalized hypercube structure to serve as the basic topology structure. the level of inter-module interconnection structure BCube be k, and the number of ports used by switches be n, then the number of inter-module switches is (k+1)nk
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ICACT20230249 Slide.06
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1.Switch-centric data center
Tree topology is a typical switch - centric data center structure. The typical topology is composed of three layer switches, which are access layer switch, convergence layer switch and core layer switch. Facts have proved that the tree structure has been unable to adapt to the development of the current data. Common tree structures include Fat-tree, VL2, ElasticTree, and others.
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ICACT20230249 Slide.05
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Part two New Data Center Network Structure
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ICACT20230249 Slide.04
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the performance of the data center network determines the quality of service provided by cloud computing. However, traditional data center networks have long been unable to meet the needs of today 's society for large data centers. This paper summarizes the new data center network structure proposed in recent years from the aspects of switch-centric, server-centric, wireless data center, wired and wireless combination, introduces its performance, fault tolerant routing efficiency and other advantages, and looks forward to the future development of data center network structure.
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ICACT20230249 Slide.03
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the performance of the data center network determines the quality of service provided by cloud computing. However, traditional data center networks have long been unable to meet the needs of today 's society for large data centers. This paper summarizes the new data center network structure proposed in recent years from the aspects of switch-centric, server-centric, wireless data center, wired and wireless combination, introduces its performance, fault tolerant routing efficiency and other advantages, and looks forward to the future development of data center network structure.
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ICACT20230249 Slide.02
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part one Background
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ICACT20230249 Slide.01
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This speech is divided into three parts,background,New Data Center
Network Structure,conclusion.
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ICACT20230249 Slide.00
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The topic of my speech today is Review of New Data Center Network Structure
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