WDM Optical Port Remapping for Underutilized Bandwidth Power Savings
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Solution Overview
Problem
In wavelength division multiplexing systems, power is wasted when there is insufficient data being driven into line-side ports due to fixed routing of client-side traffic, leading to inefficiencies in power consumption.
Innovation Solution
Implementing a controller that dynamically remaps client-side traffic ports to line-side optical ports based on available bandwidth capacity, reallocating traffic to higher speed ports and disabling or adjusting the power mode of underutilized ports to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If client-side ports are statically mapped to line-side ports, then system stability and simplicity are improved, but power consumption increases when bandwidth is underutilized
Solution Approach 1:
The patent implements dynamic remapping of client-side traffic ports to line-side optical ports based on real-time bandwidth utilization monitoring. When a line-side port becomes underutilized, the system automatically remaps client-side ports to different line-side ports with available capacity, enabling the mapping configuration to adapt dynamically to changing traffic conditions and optimize power consumption.
2Productivity
If line-side ports operate at fixed high speed, then bandwidth capacity is improved, but power consumption increases when actual traffic is low
Solution Approach 1:
The system changes the operational parameters of line-side ports by dynamically adjusting which ports are active based on traffic demands. Instead of maintaining all line-side ports at fixed high speed continuously, the system activates only the necessary ports based on real-time bandwidth utilization, thereby reducing power consumption while maintaining the capability to operate at high speeds when needed.
3Reliability
If all line-side ports are kept active, then system reliability is improved, but power consumption increases due to idle ports
Solution Approach 1:
The patent implements a feedback mechanism that continuously monitors bandwidth utilization on line-side ports and uses this information to dynamically adjust port activation status. When monitoring indicates that a line-side port is underutilized, the system responds by remapping traffic to other ports, thereby reducing power consumption while maintaining system reliability through active redundancy and load balancing.
Data Source
AI summary
A controller maps a plurality of client-side traffic ports to a plurality of line-side optical ports of a wavelength division multiplexing system, that are operatively coupled to at least one optical long haul link. The controller determines idle traffic overhead associated with at least one mapped client-side traffic port of the plurality of client-side traffic ports. The controller determines that there is underutilized bandwidth capacity in at least a first line-side optical port in the plurality of mapped line-side ports that would reduce a need for use of at least a second line-side optical port. The controller logically remaps at least one client-side traffic port from the second line-side port to the underutilized first line-side optical port in response to determining that there is underutilized bandwidth capacity of the first line-side optical port.