Distributed Switching Shelves Aggregate Capacity Scaling
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Solution Overview
Problem
Current communications systems face challenges in delivering data to high-speed processors due to limitations in aggregate capacity, as they struggle to keep pace with the increasing speed and memory requirements of processors like personal computers, workstations, and servers.
Innovation Solution
The solution involves connecting multiple switching shelves with varying aggregate capacities via interconnection links, allowing for an upgrade of the switching system by distributing data across multiple port cards and switch cards with different capacities, thereby increasing overall aggregate capacity without the need for a central switch fabric.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If current communications systems use traditional switch fabric architecture, then system simplicity is maintained, but aggregate capacity is insufficient to meet increasing processor speed and memory requirements
Solution Approach 1:
The switching system is divided into multiple independent switching shelves, each with its own port cards and switch cards. These shelves can be connected via interconnection links to form a distributed architecture, allowing the system to scale capacity by adding more shelves rather than expanding a single complex switch fabric.
Solution Approach 2:
The patent transitions from a two-dimensional switch fabric architecture to a three-dimensional distributed shelf architecture. By stacking multiple shelves vertically and connecting them through interconnection links, the system achieves higher aggregate capacity in an additional spatial dimension without proportionally increasing complexity within individual shelves.
2Productivity
If switching system capacity is increased by adding more switching shelves, then aggregate capacity is improved, but system configuration complexity increases
Solution Approach 1:
The switching shelves are designed with universal interconnection interfaces that can accommodate multiple connection configurations. Each shelf has standardized ports and switching cards that can be connected in various topologies (series, parallel, mesh), allowing flexible system expansion without requiring different configuration procedures for different shelf arrangements.
Solution Approach 2:
The system allows dynamic configuration of interconnection links between shelves, enabling the switching capacity to be adjusted based on实际需求. The bidirectional links can be selectively activated or deactivated, allowing the system to adapt its topology and capacity without physical reconfiguration of the shelves themselves.
3Productivity
If a centralized switch fabric is used, then data switching is simplified, but the system cannot scale to support higher aggregate capacities required by modern processors
Solution Approach 1:
The interconnection links serve as intermediaries between switching shelves, enabling coordinated data routing across multiple shelves. These links act as mediators that manage data flow between shelves, ensuring reliable data delivery while distributing the switching load across multiple shelves rather than concentrating it in a single centralized fabric.
Data Source
AI summary
Example embodiments of the present invention relate to increasing an aggregate capacity of a network without using a centralized switch fabric. A method and corresponding apparatus in an example embodiment of the present invention relates to increasing overall aggregate capacity of a switching system. The example embodiment includes a first switching shelf having a first predetermined aggregate capacity, and multiple second switching shelves having a second predetermined aggregate capacity. The second predetermined aggregate capacity is less than the first predetermined aggregate capacity. The example embodiment increases the overall aggregate capacity as a function of connections between the first switching shelf and the multiple second switching shelves. The shelves are interconnected with interconnection links and can be configured to connect to additional shelves as the switching system grows to larger sizes. Embodiments can increase capacity while reducing cost within a network node.