Network Edge Device VLAN Reflection Automation

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Solution Overview

Problem

Existing network configurations require manual intervention and technician visits to configure network devices for VLAN participation, leading to inefficiencies and high costs, especially in large-scale deployments where frequent changes are needed, such as in carrier networks connecting thousands of customer locations.

Innovation Solution

A network edge device is equipped with a processor and instructions to automatically detect and store VLAN IDs from broadcast messages, allowing it to tag outgoing frames without manual configuration, eliminating the need for external authentication or elaborate handshakes, and enabling devices to participate in VLANs dynamically.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual configuration methods are used to join devices to VLANs, then configuration accuracy is ensured, but the time required and operational costs increase significantly

Engineering Contradiction:
Improveconfiguration accuracyVSAvoidtime required for configuration
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The network device automatically performs VLAN configuration by receiving broadcast messages containing VLAN identification information and using this information to join the appropriate VLANs without requiring manual technician intervention. The device self-configures by extracting VLAN IDs from broadcast messages and automatically updating its VLAN membership.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

VLAN configuration information is pre-packaged into broadcast messages that are sent to network devices before they need to join VLANs. This preliminary preparation of configuration data in broadcast messages enables devices to automatically configure themselves without waiting for manual setup.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If manual technician visits are used for VLAN configuration, then proper VLAN joining is ensured, but operational costs and scalability are worsened

Engineering Contradiction:
ImproveVLAN joining reliabilityVSAvoidoperational efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

Network devices automatically join VLANs by processing broadcast messages containing VLAN identification information. This self-service mechanism eliminates the need for technician visits while maintaining reliable VLAN joining through automated verification and configuration processes.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical process of technician visits and physical configuration is replaced with an automated electronic system that uses broadcast messages and automated processing to join devices to VLANs, dramatically improving operational efficiency and scalability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Productivity

If automated VLAN detection is implemented, then configuration speed increases, but device complexity increases

Engineering Contradiction:
Improveconfiguration speedVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

Complex manual configuration procedures are replaced with automated electronic detection and processing of broadcast messages. The device uses standardized protocols to receive, parse, and apply VLAN configuration information automatically, achieving fast configuration without proportionally increasing device complexity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP3579499B1VLAN reflection
Publication Date: 2024.05.15 ADTRAN NETWORKS SE
  • EP3579499B1 patent drawingFigure 1
  • EP3579499B1 patent drawingFigure 2
  • EP3579499B1 patent drawingFigure 3

AI summary

A network edge device may be placed at a location to participate in a VLAN using a specific VLAN ID without expressly programming the network edge device to use that specific VLAN ID. The network edge device is connected to a network to receive ingressing frames from the network and to send egressing frames to the network. The network edge device copies a specific VLAN ID from an ingressing VLAN message into memory and subsequently reads the specific VLAN ID from the memory for use in tagging frames egressing from the network edge device with the specific VLAN ID so that the egressing frames are VLAN conformant. The network edge device may communicate with non-edge devices at the same location as the network edge device.