Dedicated Stacking Links for Switch Bandwidth Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing network switch configurations lack efficient management of inter-switch bandwidth and redundancy in stacked switch systems, leading to potential bandwidth saturation and lack of dedicated resources for specific traffic classes.
Innovation Solution
A stacked switch system employing a dual ring or mesh topology with dedicated stacking links, where common configuration data specifies traffic classes and allocates specific bandwidth for each class, ensuring redundancy and efficient bandwidth management even if one link is broken.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple switches are stacked to increase port capacity, then the overall network capacity is improved, but the complexity of managing inter-switch bandwidth and ensuring redundancy increases
Solution Approach 1:
The patent segments inter-switch traffic into different traffic classes (control plane traffic, storage traffic, default traffic) and allocates dedicated stacking links for each class. This segmentation allows independent management and optimization of each traffic type, reducing the complexity of managing overall inter-switch bandwidth while maintaining high port capacity.
2Device complexity
If stacking links are shared among multiple traffic classes, then device complexity is reduced, but reliability decreases due to potential bandwidth saturation and lack of dedicated resources
Solution Approach 1:
The patent applies local quality by assigning different quality levels and dedications to different stacking links based on their specific traffic requirements. Control plane traffic receives dedicated links with highest priority, storage traffic gets dedicated links with appropriate bandwidth guarantees, and default traffic uses remaining capacity. This ensures each traffic class receives appropriate resources and isolation, improving reliability while maintaining manageable complexity.
3Reliability
If dedicated stacking links are allocated for specific traffic classes, then reliability and performance are improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring stacking links with dedicated assignments for specific traffic classes before operation. Control plane stacking links are pre-dedicated for control traffic, storage stacking links are pre-configured for storage traffic with appropriate bandwidth allocations. This preliminary configuration simplifies ongoing management while ensuring reliable, isolated performance for each traffic class during operation.
4Reliability
If redundancy is implemented through additional stacking links, then system reliability is improved, but the complexity of bandwidth management increases
Solution Approach 1:
The patent segments redundant stacking links into dedicated groups for different traffic classes. Each traffic class has its own dedicated stacking links configured for redundancy, allowing independent failure recovery without affecting other traffic classes. This segmentation simplifies bandwidth management of redundant links by providing clear, isolated allocation rules for each traffic type while maintaining high reliability.
Data Source
AI summary
A first switch includes a processor and a memory communicatively coupled to the processor. The memory stores instructions causing the processor, after execution of the instructions by the processor, to establish a first stacking link between a first stacking port of the first switch and a first stacking port of a second switch, establish a second stacking link between a second stacking port of the first switch and a first stacking port of a third switch, and dedicate the first stacking link to a first class of traffic between the first switch and the second switch.