Network Device Automatic Connection Restoration via Layered Restart
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Solution Overview
Problem
Existing network devices, such as IP cameras, require manual troubleshooting to restore network connections when the connection status with remote devices is abnormal, leading to inefficiencies and increased administrative burdens.
Innovation Solution
A network device and method that automatically determine connection status by monitoring timestamp reception, and if disconnected, sequentially restarts the application layer, then the network protocol layer, and finally reboots the device to restore connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual troubleshooting is performed to restore network connections, then connection restoration can be achieved, but operational efficiency decreases and administrative burden increases
Solution Approach 1:
The network device automatically detects connection status and performs self-diagnosis and self-restoration by sequentially restarting the application layer, network protocol layer, and device reboot without requiring manual technician intervention. This self-service mechanism resolves the contradiction by eliminating the need for manual troubleshooting while maintaining connection restoration capability.
Solution Approach 2:
The system performs preliminary actions by automatically detecting connection disconnection and preemptively executing a structured restart sequence before complete system failure occurs. This preliminary intervention prevents operational inefficiency by addressing connection issues immediately upon detection rather than waiting for manual intervention.
2Productivity
If automatic connection restoration is implemented, then operational efficiency improves, but device complexity increases
Solution Approach 1:
The automatic restoration process is segmented into three distinct hierarchical levels: application layer restart, network protocol layer restart, and device reboot. This segmentation allows the complex restoration logic to be organized into manageable, sequential stages, making the control system more tractable while achieving comprehensive connection restoration.
Solution Approach 2:
The system dynamically adapts its restoration approach based on the detected connection status, selectively executing only the necessary restart level. This dynamic behavior optimizes resource usage and reduces unnecessary system interruptions while maintaining the ability to handle various connection failure scenarios.
Data Source
AI summary
A method for maintaining network connection of a network device includes the following steps. Firstly, a step (a) is performed to determine whether a connection status between the network device and a remote device is disconnected. An application layer is automatically restarted if the connection status is determined to be disconnected. Then, a step (b) is performed to determine whether the connection status is still disconnected after the application layer is automatically restarted. If the connection status is still disconnected after the application layer is automatically restarted, a network protocol layer is automatically restarted. Then, a step (c) is performed to determine whether the connection status is still disconnected after the network protocol layer is automatically restarted. If the connection status is still disconnected after the network protocol layer is automatically restarted, the network device is automatically rebooted.