TreeRing Network Topology for Low-Degree Node Interconnects
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Solution Overview
Problem
Current interconnection network topologies face challenges in balancing implementation cost with performance metrics, particularly for moderate numbers of nodes, as they require expensive high-degree nodes to support high-speed links and complex routing logic, which increases costs and reduces efficiency.
Innovation Solution
A TreeRing topology is introduced, comprising multiple rings with trees having at least one leaf at a relative position, allowing for superior network performance by limiting each node's ability to handle a plurality of links, thus reducing costs and enhancing communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-degree nodes are used to support high-speed links and complex routing logic, then network performance is improved, but implementation cost increases
Solution Approach 1:
The patent segments the network into multiple rings, with each node handling only a limited number of links (typically 2-4) within its ring. This segmentation allows the network to achieve high overall performance while each individual node maintains low complexity. The rings are organized in layers, with nodes in inner rings having fewer links and outer ring nodes having more links, but all nodes remain manageable in complexity.
Solution Approach 2:
The patent introduces a dimensional organization by arranging nodes in concentric rings rather than using a flat high-degree node structure. This dimensional change from a centralized high-degree node model to a distributed ring-based model allows the network to scale while maintaining low per-node complexity. The radial organization creates natural layers that simplify routing and link management.
2Adaptability or versatility
If high-degree nodes are used to support complex routing logic, then message routing capability is improved, but implementation cost increases
Solution Approach 1:
The routing function is segmented across multiple rings rather than concentrated in high-degree nodes. Each node performs simple routing decisions based on its position in the ring hierarchy, forwarding messages to adjacent nodes in the same or different rings. This segmentation of routing logic across many simple nodes achieves complex routing capability without requiring any single node to have complex routing logic.
Solution Approach 2:
The patent uses a hierarchical ring structure where inner rings provide core routing functionality with minimal logic, while outer rings provide additional routing capacity. Not all rings need to be fully utilized for every message, allowing the system to achieve high adaptability while keeping individual node routing logic simple and partial.
3Device complexity
If nodes have limited ability to handle plurality of links, then implementation cost is reduced, but network performance may deteriorate
Solution Approach 1:
The patent merges multiple low-degree nodes into a hierarchical ring structure that collectively provides high network capacity. By combining the capabilities of many nodes with limited link handling into an organized multi-ring system, the overall network achieves high performance metrics including bisection bandwidth and average distance while each node remains simple.
Solution Approach 2:
The patent transitions from a two-dimensional flat network to a three-dimensional hierarchical ring structure, adding the radial dimension with inner and outer rings. This dimensional change allows traffic to be routed through multiple layers, effectively increasing network capacity and performance while each node in any given ring maintains limited link handling capability.
Data Source
AI summary
A topology for routing message traffic between interconnecting nodes of a network is provided that includes a plurality of rings having a plurality of interconnecting nodes. A number of trees include at least one leaf at a same relative position of the rings. The trees and the rings form a unique combination that provides superior network performance for moderate numbers of the interconnecting nodes, wherein each interconnecting node has only a limited ability to handle a plurality of links.