Wireless Flyways for Data Center Network De-congestion
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Solution Overview
Problem
The cost of providing communication bandwidth between servers in large data centers grows proportionally with cluster size, leading to network congestion and scalability issues due to the sparse demand matrix in conventional top-of-rack architectures.
Innovation Solution
Implementing point-to-multipoint and multipoint-to-point wireless flyways using MU-MIMO technology to dynamically reroute data traffic between ToR switches, supplementing the wired base network and alleviating congestion by establishing wireless links based on channel state information and beam-forming coefficients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional top-of-rack architecture is used to connect servers, then network connectivity is provided, but network congestion occurs and bandwidth cost grows proportionally with cluster size
Solution Approach 1:
The patent combines wired and wireless communication infrastructure to create a hybrid network architecture. Wireless flyways are established alongside existing wired ToR connections, allowing traffic to be distributed across multiple paths (wired and wireless) simultaneously, thereby increasing total available bandwidth without adding proportional wired infrastructure cost.
Solution Approach 2:
The system dynamically selects between wired and wireless paths based on real-time network conditions, traffic patterns, and channel state information. This dynamic path selection allows the network to adapt to changing demands and optimize bandwidth utilization, preventing congestion by routing traffic through less-utilized wireless flyways when appropriate.
2Adaptability or versatility
If more ToR switches are added to accommodate growing data centers, then server connectivity increases, but network congestion worsens due to sparse demand matrix
Solution Approach 1:
The patent introduces a wireless dimension to the traditionally wired network topology. By adding wireless flyways as a new transmission dimension, the system provides additional routing paths that bypass wired network bottlenecks, enabling scalable growth without proportionally increasing wired infrastructure complexity or congestion.
3Quantity of substance
If wired infrastructure is expanded to provide sufficient bandwidth, then network capacity increases, but cost and complexity increase proportionally
Solution Approach 1:
The patent substitutes wireless communication (electromagnetic field-based) for portions of the wired mechanical infrastructure. This substitution provides high-bandwidth data transfer capability without the physical constraints and complexity of expanding wired cable infrastructure, switching equipment, and physical connectivity management.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively de-congests data centers by providing additional capacity on demand, improving network performance and reducing costs associated with peak traffic design, while maintaining high-bandwidth data transfer capabilities.
Implementation Method 1
transmitting a downlink multi-user multiple-input and multiple-output (DL-MU-MIMO) signal to the two or more destination ToR switches
Implementation Method 2
transmitting the data traffic from the source ToR to each of the two or more destination ToRs via the point-to-multipoint wireless flyway using the calculated beam-forming coefficient
Data Source
Figure 1
Figure 2A~2B
Figure 3
AI summary
In one embodiment, a source top-of-rack (ToR) switch may identify multiple destination ToR switches from a group of ToR switches to send data traffic to. The source ToR switch may be connected to the group of ToR switches via a base network. The system may determine whether each destination ToR switch is suitable for receiving data transmission via a point-to-multipoint wireless flyway. The two or more destination ToR switches that are determined to be suitable may be considered flyway candidate ToR switches. The system may establish the point-to-multipoint wireless flyway between the source ToR switch and the flyway candidate ToR switches. The system may then transmit the data traffic from the source ToR switch to each of the flyway candidate ToR switches via the point-to-multipoint wireless flyway.