OvS: A Distributed and WDM/SDM Enabled Optical Switching Fabric for Intra-Data Center Networking

2014 ◽  
Author(s):  
Zhonghua (Joshua) Zhu ◽  
Shan Zhong
Keyword(s):  
Data Center ◽  
Optical Switching ◽  
Data Center Networking ◽  
Switching Fabric

scholarly journals Assessment of Adaptive Polling Contention Resolution for Optical Switching in Edge Data Center Networking

2019 ◽  
Vol 11 (5) ◽  
pp. 1-15
Author(s):  
Fu Wang ◽  
Bo Liu ◽  
Xuwei Xue ◽  
Lijia Zhang ◽  
Qi Zhang ◽  
...  
Keyword(s):  
Data Center ◽  
Optical Switching ◽  
Contention Resolution ◽  
Data Center Networking ◽  
Adaptive Polling

High-Radix Nonblocking Integrated Optical Switching Fabric for Data Center

2017 ◽  
Vol 35 (19) ◽  
pp. 4268-4281 ◽  
Author(s):  
Zhifei Wang ◽  
Jiang Xu ◽  
Peng Yang ◽  
Zhehui Wang ◽  
Luan Huu Kinh Duong ◽  
...  
Keyword(s):  
Data Center ◽  
Optical Switching ◽  
Switching Fabric ◽  
Integrated Optical ◽  
High Radix

scholarly journals Fully programmable and scalable optical switching fabric for petabyte data center

2015 ◽  
Vol 23 (3) ◽  
pp. 3563 ◽  
Author(s):  
Zhonghua Zhu ◽  
Shan Zhong ◽  
Li Chen ◽  
Kai Chen
Keyword(s):  
Data Center ◽  
Optical Switching ◽  
Switching Fabric

Research on the Network Fault in Multistage Multi-plane Optical Switching Fabric

2014 ◽  
Vol 35 (12) ◽  
pp. 2978-2984
Author(s):  
Xi-lian Chen ◽  
Bo Xu ◽  
Yu-meng Zhou ◽  
Zhan-qi Cui ◽  
Kun Qiu
Keyword(s):  
Optical Switching ◽  
Switching Fabric ◽  
Network Fault

scholarly journals The Optical Signal-to-Crosstalk Ratio for the MBA(N, e, g) Switching Fabric †

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1534
Author(s):  
Remigiusz Rajewski
Keyword(s):  
Optical Switching ◽  
Essential Feature ◽  
Optical Signal ◽  
Point Of View ◽  
Signal Quality ◽  
Switching Networks ◽  
Optical Elements ◽  
Optical Signals ◽  
Switching Fabric

The banyan-type switching networks, well known in switching theory and called the logdN switching fabrics, are composed of symmetrical switching elements of size d×d. In turn, the modified baseline architecture, called the MBA(N,e,g), is only partially built from symmetrical optical switching elements, and it is constructed mostly from asymmetrical optical switching elements. Recently, it was shown that the MBA(N,e,g) structure requires a lower number of passive as well as active optical elements than the banyan-type switching fabric of the same capacity and functionality, which makes it an attractive solution. However, the optical signal-to-crosstalk ratio for the MBA(N,e,g) was not investigated before. Therefore, in this paper, the optical signal-to-crosstalk ratio in the MBA(N,e,g) was determined. Such crosstalk influences the output signal’s quality. Thus, if such crosstalk is lower, the signal quality is better. The switching fabric proposed in the author’s previous work has lower optical signal losses than a typical Beneš and banyan-type switching networks of this same capacity and functionality, which gives better quality of transmitted optical signals at the switching node’s output. The investigated MBA(N,e,g) architecture also contains one stage fewer than banyan-type network of the same capacity, which is an essential feature from the optical switching point of view.

scholarly journals Path based load balancing for data center networks using SDN

2019 ◽  
Vol 9 (4) ◽  
pp. 3279
Author(s):  
V. Deeban Chakravarthy ◽  
B. Amutha
Keyword(s):  
Load Balancing ◽  
Data Center ◽  
Software Defined Networking ◽  
The Internet ◽  
Operational Cost ◽  
Link Failures ◽  
Data Center Networking ◽  
Data Centre ◽  
Multiple Paths ◽  
Load Balancer

Due to the increase in the number of users on the internet and the number of applications that is available in the cloud makes Data Center Networking (DCN) has the backbone for computing. These data centre requires high operational cost and also experience the link failures and congestions often. Hence the solution is to use Software Defined Networking (SDN) based load balancer which improves the efficiency of the network by distributing the traffic across multiple paths to optimize the efficiency of the network. Traditional load balancers are very expensive and inflexible. These SDN load balancers do not require costly hardware and can be programmed, which it makes it easier to implement user-defined algorithms and load balancing strategies. In this paper, we have proposed an efficient load balancing technique by considering different parameters to maintain the load efficiently using Open FlowSwitches connected to ONOS controller.

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