Communication Apparatus Interface Identification for Search Optimization
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Solution Overview
Problem
Existing communication methods, such as those using SNMP, require multiple inquiries to determine the communication interface of a device with multiple interfaces, leading to complex processing and prolonged search times.
Innovation Solution
A communication apparatus with a determination unit to identify whether a received request is for a wireless LAN or wired LAN interface, and a response unit to transmit the determination results, allowing for efficient identification without multiple bidirectional communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the setting application uses SNMP to search for devices by transmitting broadcast or multicast packets, then device search capability is achieved, but multiple inquiries are required to determine communication interface information, increasing search time and processing complexity
Solution Approach 1:
The patent applies preliminary action by having the determination unit pre-determine the communication interface type (wireless LAN or wired LAN) before the setting application performs device search. This allows the response unit to include interface type information in the initial search response, eliminating the need for multiple subsequent inquiries and reducing overall search time while maintaining accurate device identification
2Measurement precision
If the setting application transmits requests to determine communication interface information using SNMP OIDs, then interface identification capability is achieved, but multiple bidirectional communications are required, increasing processing complexity
Solution Approach 1:
The patent merges the interface determination function into the device search response process itself. The determination unit identifies whether the communication interface is wireless or wired LAN, and the response unit includes this determination result in the same response packet that provides device search information. This consolidation eliminates the need for separate bidirectional communication exchanges, reducing processing complexity while maintaining accurate interface identification
Data Source
AI summary
A communication apparatus has a wireless interface for which a first IP address corresponding to a first mode of the wireless interface is assigned. A processor performs steps of receiving search information which is transmitted to a transmitting destination of a second IP address, from an external apparatus via the wireless interface, determining whether or not the second IP address corresponds to the first IP address corresponding to the first mode of the wireless interface, and transmitting interface information indicating the first mode or a second mode of the wireless interface, and apparatus information of the communication apparatus, to the external apparatus. The interface information indicating the first mode or the second mode is transmitted based on whether the second IP address corresponds to the first IP address.