Network Interface Switching via Priority Detection

Solution Overview

Problem

Current multi-network interface terminal equipment requires manual switching and simple priority processing, which is inadequate for detecting and resolving issues in complex network environments, leading to user access difficulties and negative experiences.

Innovation Solution

A method for network interface switching that detects the connected state of multiple network interfaces, determines valid interfaces based on priority criteria such as bandwidth and rate standards, and automatically switches to a higher-priority interface when the current interface is insufficient, using a preset switching policy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual switching or simple priority processing is used, then device complexity is reduced, but ease of operation deteriorates and reliability worsens in complex network environments

Engineering Contradiction:

Improveautomatic switching capabilityVSAvoidswitching control mechanism

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The system performs self-detection of network interface states and automatically executes switching decisions without user intervention. The access device monitors its own network interfaces, detects connectivity states, and autonomously switches between interfaces based on predefined policies, eliminating the need for manual user operation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system continuously monitors network interface connectivity states and uses this feedback information to make dynamic switching decisions. By detecting whether each interface is in a connected state and comparing it against priority policies, the system adjusts its network interface selection in real-time to maintain optimal connectivity.

Inventive Principle:

Principle #23Feedback

2Reliability

If simple priority processing is implemented, then device complexity is reduced, but reliability deteriorates when network abnormalities occur

Engineering Contradiction:

Improvenetwork access reliabilityVSAvoiddetection and switching mechanism

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system pre-establishes priority policies for different network interfaces before switching is needed. By configuring the priority order of interfaces in advance (e.g., WLAN > 3G > 2G), the system is prepared to quickly and reliably switch to the appropriate interface when connectivity issues occur, without requiring complex real-time analysis.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors network interface connectivity states and uses this feedback information to make dynamic switching decisions. By detecting whether each interface is in a connected state and comparing it against priority policies, the system adjusts its network interface selection in real-time to maintain optimal connectivity.

Inventive Principle:

Principle #23Feedback

3Extent of automation

If automatic detection and switching is implemented, then ease of operation is improved, but device complexity increases

Engineering Contradiction:

Improvenetwork interface switching automationVSAvoidcontrol system structure

Core Design Contradiction:

Extent of automationVSDevice complexity

Solution Approach 1:

The automatic switching system is divided into distinct functional modules: a detection unit that monitors interface connectivity states, a policy unit that stores priority configurations, and a switching unit that executes interface transitions. This segmentation allows each component to perform its specific function with simple logic, reducing overall system complexity while maintaining high automation capability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system pre-establishes priority policies for different network interfaces before switching is needed. By configuring the priority order of interfaces in advance (e.g., WLAN > 3G > 2G), the system is prepared to quickly and reliably switch to the appropriate interface when connectivity issues occur, without requiring complex real-time analysis.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP3021558B1Switching method for network interfaces, access device and computer storage medium

Publication Date: 2019.11.27 ZTE CORP

Figure 1~3

AI summary

Disclosed are a switching method for network interfaces, an access device and a computer storage medium. The switching method for the network interfaces is applicable to the access device containing at least two network interfaces and includes: detecting connected states of the at least two network interfaces so as to determine valid network interfaces; and when it is determined that the priority of the currently accessed valid network interface is lower than priority of other valid network interfaces, performing network interface switching according to a preset switching policy.