Switch Fabric Access Switch Chaining for Cable Reduction
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Solution Overview
Problem
In large-scale applications, the number of cables between access switches and switch fabrics becomes unmanageable, and the capacity of access switches is limited by the number of ports in the switch fabric, necessitating a method to increase the number of connected access switches without increasing physical connections and reduce cable usage.
Innovation Solution
A system with multiple switch fabric devices and access switches, where each access switch is connected to multiple switch fabrics through dedicated data paths within multiple cables, allowing data to be sent and received without multiplexing, and using multiplex systems to determine signal routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each access switch is connected to multiple switch fabrics using separate cables for each connection, then redundancy and capacity are improved, but the number of cables becomes large and unmanageable
Solution Approach 1:
The patent merges multiple cable connections into a single cable by implementing cable sharing between access switches and switch fabrics. Multiple access switches share a common cable connection to the same switch fabric, eliminating the need for separate cables for each connection and reducing overall cable count while maintaining redundancy through virtual routing
2Reliability
If each access switch is connected to multiple switch fabrics using separate cables for each connection, then redundancy is improved, but the number of cables doubles
Solution Approach 1:
The patent combines multiple cable connections into shared cable infrastructure where multiple access switches can connect to the same switch fabric through a common cable. This merging approach reduces the total quantity of cables from N*M connections to significantly fewer shared connections while preserving redundancy through virtual switching fabric routing
3Adaptability or versatility
If the number of access switches is increased by adding more ports to the switch fabric, then connectivity is improved, but the switch fabric capacity is limited by the number of ports
Solution Approach 1:
The patent enables a single cable connection to serve multiple access switches simultaneously, making the cable connection universal rather than dedicated to a single switch. This multi-functionality allows the switch fabric to support more access switches without proportionally increasing physical ports, as virtual routing enables any connected switch to access any switch fabric through shared infrastructure
Data Source
AI summary
In some embodiments, a system includes a first switch fabric device, a second switch fabric device, a first access switch operatively coupled to the first switch fabric device by a first cable, and a second access switch operatively coupled to the second switch fabric device by a second cable. The second access switch is operatively coupled to the first access switch by a third cable. The first access switch is configured to send data to the first switch fabric device via the first cable. The first access switch is configured to send data to the second switch fabric device via the third cable, the second access switch, and the second cable.