Flexible Stacking Port Configuration for Network Switches
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Solution Overview
Problem
Conventional stackable network switches have dedicated stacking ports that are underutilized in certain topologies, leading to wasted hardware and increased costs due to their high-bandwidth and inflexible configuration.
Innovation Solution
A stackable network switch with flexible ports that can be dynamically configured as either stacking ports or regular data ports, allowing unused high-bandwidth ports to be repurposed as data ports, and low-bandwidth ports to form a high-bandwidth trunk for increased reliability and fault tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dedicated stacking ports are used in conventional stackable switches, then stacking functionality is ensured, but hardware waste and cost increase when ports are underutilized
Solution Approach 1:
The patent makes stacking ports universal by allowing them to function as either dedicated stacking ports or regular data ports depending on configuration needs. This multi-functionality eliminates hardware waste by enabling underutilized stacking ports to serve as data ports when stacking capacity is not fully utilized, while still ensuring stacking functionality when needed.
2Speed
If high-bandwidth ports are designated as stacking ports, then stacking performance is improved, but cost increases due to the expensive nature of high-bandwidth ports
Solution Approach 1:
The patent introduces dynamic port configuration where high-bandwidth ports can dynamically switch between stacking port and data port roles based on actual network needs. This dynamic allocation ensures that expensive high-bandwidth ports are only used for stacking when necessary, reducing hardware cost while maintaining stacking performance when required.
3Device complexity
If dedicated stacking ports are used, then stacking topology is simplified, but adaptability decreases as ports cannot be used for other purposes
Solution Approach 1:
The patent creates universal ports that can adapt to different roles - serving as stacking ports when needed for simplified topology, or as data ports when adaptability is required. This universality resolves the contradiction by allowing the same physical port to provide either simplified stacking configuration or enhanced versatility depending on operational context.
Data Source
AI summary
A stackable device having a plurality of data ports, wherein each of the data ports is capable of operating as a regular data port or a stacking port. A first set of one or more of the data ports is specified as a first flexible stacking port, and a second set of one or more of the data ports is specified as a second flexible stacking port. Each flexible stacking port can be individually configured to operate as an actual stacking port, if required by the configuration of an associated stack. If a flexible stacking port is not configured to operate as an actual stacking port, then the data port(s) included in the flexible stacking port are available to operate as regular data port(s).