Dual-Network Routing for Internet Failover and Local Data Continuity
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Solution Overview
Problem
Electronic devices can only access one network at a time, leading to interruptions in services like remote printing when the primary network loses Internet connectivity, as they switch to alternative networks manually.
Innovation Solution
The device maintains connections to multiple networks by detecting Internet access issues in the primary network and switching to a secondary network while keeping the primary connection active, using routing rules to prioritize data transmission based on network addresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic device switches to a second network when the first network cannot access the Internet, then Internet access is restored, but the connection to the first network is disconnected and local data transmission capability is lost
Solution Approach 1:
The patent segments network data transmission into two independent paths: one for Internet access (through the second network) and one for local area network communication (through the first network). By maintaining separate connection states and using routing rules to direct different types of traffic through different networks, the system preserves both Internet access capability and local transmission capability simultaneously, resolving the contradiction between reliability and versatility.
2Device complexity
If the electronic device maintains connection to only one network at a time, then network management is simple, but network communication reliability deteriorates when the primary network fails
Solution Approach 1:
The patent implements dynamic network management by allowing the electronic device to maintain connections to multiple networks simultaneously with different priorities. The system dynamically selects which network to use for specific data transmissions based on routing rules and network status, rather than statically committing to a single network. This dynamic approach enhances reliability while keeping management complexity manageable through automated routing decisions.
3Adaptability or versatility
If the electronic device manually switches network access manners, then network access is flexible, but user operation complexity increases and service continuity is disrupted
Solution Approach 1:
The patent enables the electronic device to automatically manage its own network connections and data routing without requiring user intervention. The system self-monitors network status, automatically establishes connections to appropriate networks, and intelligently routes data packets through the correct network paths based on predefined rules. This self-service capability maintains network access flexibility while eliminating the need for manual user operations, thereby improving ease of operation.
Data Source
AI summary
This application provides a communication method and an apparatus. The method includes: accessing, by an electronic device, a first network; performing network probing on the first network, where it is detected that the Internet cannot be accessed through the first network; and transmitting, in the first network and a second network, to-be-transmitted data through a network that matches the to-be-transmitted data, where the first network is different from the second network, and the electronic device can access the second network and maintain a connection to the first network. The Internet can be accessed through the second network. Even if the Internet cannot be accessed through the first network, the electronic device can still access the Internet through the second network, and is not disconnected from the first network, maintaining the capability of the first network to transmit data.