Access Point Image Version Synchronization via Hierarchical Distribution

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Solution Overview

Problem

Upgrading access points (APs) in a network cluster can consume significant bandwidth, leading to costly network usage, especially when all APs need to download updated images from a server.

Innovation Solution

Implementing a hierarchical upgrade process where a primary AP determines the image version and class of each AP, instructing secondary APs to upgrade from seed APs or the primary AP, thereby limiting the number of APs that directly access the server for upgrades, reducing bandwidth usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If all APs download updated images directly from the server, then all APs can be upgraded to the latest version, but network bandwidth consumption increases significantly

Engineering Contradiction:
ImproveAP version synchronizationVSAvoidnetwork bandwidth consumption
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent introduces a primary AP as an intermediary between the server and secondary APs. The primary AP downloads the image from the server and then distributes it to secondary APs, eliminating the need for each secondary AP to directly access the server. This mediator approach maintains version synchronization across all APs while dramatically reducing network bandwidth consumption.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent segments the image distribution process into two distinct phases: (1) the primary AP downloads the image from the server, and (2) the primary AP distributes the image to secondary APs. This segmentation allows the system to control bandwidth usage by limiting direct server connections to a single AP while still achieving universal upgrade coverage.

Inventive Principle:
Principle #1Segmentation

2Reliability

If APs are upgraded frequently to maintain security and functionality, then network security and performance improve, but bandwidth costs increase

Engineering Contradiction:
Improvenetwork securityVSAvoidbandwidth cost
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

By establishing the primary AP as a local repository for images, the system enables frequent security updates without proportionally increasing bandwidth costs. The primary AP caches images locally, allowing secondary APs to receive updates from the local source rather than repeatedly accessing the remote server, thus decoupling update frequency from bandwidth consumption.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Loss of energy

If a hierarchical upgrade process is implemented, then bandwidth usage is reduced, but system complexity increases

Engineering Contradiction:
Improvebandwidth usageVSAvoidupgrade process complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent combines the image download and distribution functions into a single coordinated process managed by the primary AP. Rather than implementing complex multi-level hierarchies or distributed decision-making protocols, the system merges control into a centralized coordination model where the primary AP handles both receiving and distributing images, simplifying the overall system architecture.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS11653417B2Upgrading access points
Publication Date: 2023.05.16 HEWLETT PACKARD ENTERPRISE DEV LP
  • US11653417B2 patent drawing
  • US11653417B2 patent drawing
  • US11653417B2 patent drawing

AI summary

Example implementations relate to upgrading access points (APs). In some examples, a primary AP may comprise a processing resource and a memory resource storing machine readable instructions to determine, in response to receiving a data transmission from a secondary AP, whether an image version of the secondary AP and a class of the secondary AP are a same image version and class as the primary AP, determine whether the class of the secondary AP is a same class as a seed AP, and instruct the secondary AP, in response to the seed AP being the same class as the secondary AP, to upgrade the image version of the secondary AP from the seed AP.