Hybrid Optical Electrical Data Switching for Bandwidth and Energy
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Solution Overview
Problem
Current data center networks face challenges in achieving high bandwidth and low latency due to limitations in electrical switching technologies, particularly in managing both long and short data flows efficiently, which hampers the overall capacity and energy efficiency of data switching networks.
Innovation Solution
A data scheduling method and apparatus that dynamically determines whether to perform optical or electrical switching based on control information, such as packet length and priority, to optimize resource utilization and reduce energy consumption by selecting the appropriate switching method for each data packet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electrical switching technology is used to handle all data flows, then device complexity is reduced and ease of operation is maintained, but bandwidth capacity is insufficient and energy consumption is high
Solution Approach 1:
The patent segments the switching system into two distinct parts: an electrical switching network for handling short data flows and an optical switching network for handling long data flows. This segmentation allows each subsystem to be optimized for its specific function, with the electrical network maintaining simplicity and the optical network providing high bandwidth capacity, thereby resolving the contradiction between productivity and device complexity.
Solution Approach 2:
The patent implements dynamic switching mode selection based on data flow characteristics. The system dynamically determines whether to use electrical or optical switching for each data flow, switching between different operational modes to optimize performance. This dynamic approach allows the system to adapt to varying traffic patterns and achieve high bandwidth capacity while maintaining operational simplicity through automated decision-making.
2Productivity
If optical switching is used for all data flows, then bandwidth capacity is improved, but energy consumption increases and device complexity increases
Solution Approach 1:
The patent applies local quality by using optical switching only where it is most beneficial - for long data flows that require high bandwidth capacity. Short data flows continue to be handled by the energy-efficient electrical switching network. This localized application of optical technology ensures that bandwidth capacity is improved for necessary applications while avoiding unnecessary energy consumption in scenarios where electrical switching is sufficient.
Solution Approach 2:
The patent implements partial optical switching rather than complete optical switching for all data flows. By selectively applying optical switching only to long data flows that exceed a threshold, the system achieves the bandwidth benefits of optical technology where needed while avoiding the excessive energy consumption that would result from using optical switching for all traffic types.
3Use of energy by moving object
If configurable optical switching device is used mainly for long data flows, then energy consumption is reduced for short data flows, but capacity of switching network cannot be effectively improved
Solution Approach 1:
The patent merges the electrical switching network and optical switching network into a unified hybrid switching system. The two networks work together as an integrated whole, with the electrical network handling short data flows and the optical network handling long data flows. This merging allows the system to achieve both energy efficiency (by using electrical switching for short flows) and high capacity (by using optical switching for long flows), resolving the contradiction between energy consumption and network capacity.
Solution Approach 2:
The patent creates a universal switching system that can handle both short and long data flows effectively. The hybrid architecture provides multi-functionality, allowing the system to adapt to different traffic patterns and requirements. This universality ensures that the switching network capacity is effectively improved for various types of traffic while maintaining energy efficiency through appropriate technology selection.
4Use of energy by moving object
If electrical switching is used for short data flows, then energy consumption is reduced, but bandwidth and delay requirements cannot be met for long data flows
Solution Approach 1:
The patent introduces a flow classification mechanism as an intermediary that directs short data flows to the electrical switching network and long data flows to the optical switching network. This intermediary classification system ensures that each data flow is routed to the appropriate network type based on its characteristics, allowing short flows to benefit from energy-efficient electrical switching while long flows achieve the high bandwidth and low delay performance of optical switching.
Data Source
AI summary
Embodiments of the present invention relate to the communications field, and in particular, to a data scheduling and switching method, apparatus, and system. A data packet is distributed to an optical switching unit or an electrical switching unit for switching by using a control policy. The data packet may be switched by using an electrical packet switching module of the data switching apparatus, or may be switched by using an optical packet switching module.