Adaptive Communication Resumption Timing for Relay Devices
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Solution Overview
Problem
Network communication failures occur when a relay device performs a route search operation using a spanning tree protocol, causing communication interruptions that are difficult to resume effectively.
Innovation Solution
A communication device and method that differentiate between relay devices using spanning tree protocol and those not, resuming communication after a first time period when the relay device does not use the protocol, and after a longer second time period when it does, allowing for appropriate network communication resumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication part resumes communication immediately after a failure, then the communication recovery speed is improved, but communication may fail again when the relay device is performing a route search operation using spanning tree protocol
Solution Approach 1:
The patent applies dynamics by making the communication resumption timing adaptive rather than fixed. The control part dynamically adjusts the resumption delay based on detecting whether the relay device is performing a route search operation. When a route search is detected, the system waits for the operation to complete before resuming communication, preventing repeated failures. When no route search is detected, the system resumes communication immediately, minimizing recovery time. This dynamic adjustment resolves the contradiction between reliability and recovery time.
Solution Approach 2:
The patent implements feedback by having the control part continuously monitor the state of the relay device to detect ongoing route search operations. This feedback mechanism allows the communication part to make informed decisions about when to resume communication after a failure. The system uses the detected state information to adjust its resumption timing, ensuring that communication is resumed at an appropriate moment when the relay device is not performing route search operations, thereby improving both reliability and timing.
2Adaptability or versatility
If a fixed time period is used for communication resumption, then the system operation is simple, but it cannot adapt to different relay device types and their route search operation states
Solution Approach 1:
The patent applies self-service by enabling the communication device to automatically detect and adapt to the relay device's state without requiring manual configuration or complex external control. The control part autonomously monitors for route search operations and adjusts communication resumption timing accordingly. This self-adaptive mechanism provides versatility across different relay device types while maintaining relatively simple operation, as the system handles the complexity internally through automatic state detection and response.
Data Source
AI summary
A communication device includes a communication part capable of communicating with a network device via a relay device; and a control part controlling an operation of the communication part such that, in a case where communication of the communication part fails, when the relay device is not a device that performs a route search operation using a spanning tree protocol, the communication part resumes communication with the network device after a first time period has elapsed, and, when the relay device is a device that performs the route search operation, the communication part resumes communication with the network device after a second time period longer than the first time period has elapsed.