Co-Packaged Multiplane Network Cabling Reduction

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Solution Overview

Problem

The cost of cabling in large-scale interconnection networks grows super-linearly with the number of network components, making it expensive to increase bandwidth, as passive cables are limited in length and active optical cables are costly.

Innovation Solution

The approach of co-packaging multiple network planes within an enclosure, where each plane is independent and has the same topology, reduces the number of cables needed by using a single switch per plane with four ports, connected via four optical or electrical lines, eliminating inter-plane connections and scaling with the number of switches and planes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the number of network components is increased to expand bandwidth, then the network capacity is improved, but the cabling cost increases super-linearly

Engineering Contradiction:
ImprovebandwidthVSAvoidcabling cost
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The patent merges multiple network planes (first network plane and second network plane) into a single enclosure with shared connectors. Each plane has its own switches and interconnections, but both planes share the same external connectors and enclosure space, reducing the total cabling required compared to separate implementations.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The network is segmented into independent network planes (first network plane and second network plane), each with its own switches and interconnections. This segmentation allows each plane to be independently configured and connected, reducing the overall cabling complexity compared to a single monolithic network.

Inventive Principle:
Principle #1Segmentation

2Quantity of substance

If passive cables are used to reduce cost, then cabling cost is reduced, but cable length is limited

Engineering Contradiction:
Improvecabling costVSAvoidcable length
Core Design Contradiction:
Quantity of substanceVSLength of moving object

Solution Approach 1:

The patent transitions from traditional two-dimensional cabling arrangements to a three-dimensional co-packaged structure within an enclosure. Multiple network planes are stacked vertically within the same enclosure, allowing connections to be made through vertical interconnects rather than requiring long horizontal cables between separate locations.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Length of moving object

If active optical cables are used to increase cable length, then cable length is extended, but cost increases significantly

Engineering Contradiction:
Improvecable lengthVSAvoidcabling cost
Core Design Contradiction:
Length of moving objectVSQuantity of substance

Solution Approach 1:

The patent performs preliminary action by pre-configuring multiple network planes within a single enclosure before final deployment. The switches and interconnections are arranged in advance within the enclosure, so that when the system is deployed, the connections are already optimized and require minimal external cabling, avoiding the need for expensive active optical cables.

Inventive Principle:
Principle #10Preliminary action

4Adaptability or versatility

If multiple connectors are provided for each network plane, then connectivity is improved, but device complexity increases

Engineering Contradiction:
ImproveconnectivityVSAvoidnumber of connectors
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements multi-functionality by designing connectors that can serve multiple network planes. The same enclosure and connector infrastructure supports both the first network plane and the second network plane, allowing a single connector to potentially serve multiple planes or at least reducing the total number of unique connectors needed.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS11637719B2Co-packaged multiplane networks
Publication Date: 2023.04.25 HEWLETT PACKARD ENTERPRISE DEV LP
  • US11637719B2 patent drawing
  • US11637719B2 patent drawing
  • US11637719B2 patent drawing

AI summary

A co-packaged, multiplane network includes: an enclosure; a portion of a first network plane disposed within the enclosure and comprising a first plurality of interconnected switches; a portion of a second network plane disposed within the enclosure and comprising a second plurality of interconnected switches, the second network plane being independent of the first network plane and having the same topology as the first network plane; and a plurality of connectors, each connector being communicatively coupled to a respective port of each of the first plurality of interconnected switches and the second plurality of interconnected switches.