scholarly journals Fault-Tolerant Secure Routing of B H n -Based Data Center Networks

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Xinxin Zhang ◽  
Li Xu ◽  
Aihua Li
Keyword(s):  
Data Center ◽  
Large Scale ◽  
Hamming Distance ◽  
Fault Tolerant ◽  
High Capacity ◽  
Secure Routing ◽  
Data Center Networks ◽  
Safety Level ◽  
Strong Connectivity ◽  
Balanced Hypercube

As the core infrastructure of cloud computing, a large scale of the data center networks (DCNs), which consist of millions of servers with high capacity, suffer from node failure such that the reliability is deteriorated. Malicious group could inevitably compromise the quality and reliability of data; thus, how to ensure the security routing of data is an urgent practical problem. As models for large-scale DCNs, it is worth mentioning the balanced hypercube, which is well-known for its strong connectivity, regularity, and a smaller diameter. Each of which makes a balanced hypercube a trustworthy model to deal with data traffic and provides a certain degree of fault-tolerance as well. In this paper, we use the balanced hypercube as a model for the data center networks and design a reliable safety level by referring to different safety levels of related subgraph. This subgraph contains the source and destination nodes, and the shortest feasible paths are located so that the reliable transmission is achieved. Then, we get that the length of fault-tolerant safety routing of data center networks based on balanced hypercube is always no greater than the Hamming distance plus two. Experiment shows that our fault-tolerant security routing scheme is more effective in the same reliable network environment of DCNs.

scholarly journals HTPC: heterogeneous traffic-aware partition coding for random packet spraying in data center networks

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Jiawei Huang ◽  
Shiqi Wang ◽  
Shuping Li ◽  
Shaojun Zou ◽  
Jinbin Hu ◽  
...  
Keyword(s):  
Data Center ◽  
Large Scale ◽  
Network Performance ◽  
Rooted Tree ◽  
Heterogeneous Traffic ◽  
Data Center Networks ◽  
Packet Reordering ◽  
Traffic Characteristics ◽  
Network Utilization ◽  
The Impact

AbstractModern data center networks typically adopt multi-rooted tree topologies such leaf-spine and fat-tree to provide high bisection bandwidth. Load balancing is critical to achieve low latency and high throughput. Although the per-packet schemes such as Random Packet Spraying (RPS) can achieve high network utilization and near-optimal tail latency in symmetric topologies, they are prone to cause significant packet reordering and degrade the network performance. Moreover, some coding-based schemes are proposed to alleviate the problem of packet reordering and loss. Unfortunately, these schemes ignore the traffic characteristics of data center network and cannot achieve good network performance. In this paper, we propose a Heterogeneous Traffic-aware Partition Coding named HTPC to eliminate the impact of packet reordering and improve the performance of short and long flows. HTPC smoothly adjusts the number of redundant packets based on the multi-path congestion information and the traffic characteristics so that the tailing probability of short flows and the timeout probability of long flows can be reduced. Through a series of large-scale NS2 simulations, we demonstrate that HTPC reduces average flow completion time by up to 60% compared with the state-of-the-art mechanisms.

Fault tolerant storage and data access optimization in data center networks

2018 ◽  
Vol 113 ◽  
pp. 109-118
Author(s):  
Yang Qin ◽  
Weihong Yang ◽  
Xiao Ai ◽  
Lingjian Chen
Keyword(s):  
Data Center ◽  
Fault Tolerant ◽  
Data Access ◽  
Data Center Networks

Scalable Data Center Networks for Future Large-Scale Cloud Applications

2014 ◽  
Author(s):  
Jie Xiao ◽  
Yanli Zhang ◽  
Yun Shi ◽  
Changde Li ◽  
Bin Wu ◽  
...  
Keyword(s):  
Data Center ◽  
Large Scale ◽  
Data Center Networks ◽  
Cloud Applications

scholarly journals Free Space Intra-Datacenter Interconnects Based on 2D Optical Beam Steering Enabled by Photonic Integrated Circuits

Photonics ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 21 ◽  
Author(s):  
Charidimos Chaintoutis ◽  
Behnam Shariati ◽  
Adonis Bogris ◽  
Paul Dijk ◽  
Chris Roeloffzen ◽  
...  
Keyword(s):  
Integrated Circuits ◽  
Integrated Circuit ◽  
Data Center ◽  
Free Space ◽  
Large Scale ◽  
Beam Steering ◽  
Optical Beam ◽  
Switching Network ◽  
Free Space Optical ◽  
Data Center Networks

Data centers are continuously growing in scale and can contain more than one million servers spreading across thousands of racks; requiring a large-scale switching network to provide broadband and reconfigurable interconnections of low latency. Traditional data center network architectures, through the use of electrical packet switches in a multi-tier topology, has fundamental weaknesses such as oversubscription and cabling complexity. Wireless intra-data center interconnection solutions have been proposed to deal with the cabling problem and can simultaneously address the over-provisioning problem by offering efficient topology re-configurability. In this work we introduce a novel free space optical interconnect solution for intra-data center networks that utilizes 2D optical beam steering for the transmitter, and high bandwidth wide-area photodiode arrays for the receiver. This new breed of free space optical interconnects can be developed on a photonic integrated circuit; offering ns switching at sub-μW consumption. The proposed interconnects together with a networking architecture that is suitable for utilizing those devices could support next generation intra-data center networks, fulfilling the requirements of seamless operation, high connectivity, and agility in terms of the reconfiguration time.

scholarly journals Distributed Power Saving for Large-Scale Software-Defined Data Center Networks

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 5897-5909 ◽  
Author(s):  
Kun Xie ◽  
Xiaohong Huang ◽  
Shuai Hao ◽  
Maode Ma
Keyword(s):  
Data Center ◽  
Large Scale ◽  
Power Saving ◽  
Data Center Networks ◽  
Distributed Power
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