Network Redundancy via Dynamic Port Role Redefinition
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Solution Overview
Problem
Conventional network systems lack effective redundancy mechanisms to maintain connectivity when connections or devices fail, particularly in cascade networking configurations, leading to potential disruptions and loss of access to network resources.
Innovation Solution
A redundant system that redefines the roles of network ports based on broadcast packets to dynamically modify packet routing, ensuring continuous connectivity by transforming blocked ports to forward ports in response to connection changes or device failures, thereby establishing an emergent redundancy mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional linear-type network connection is used, then the network structure is simple, but the network lacks redundancy and connectivity is lost when a connection or device fails
Solution Approach 1:
The patent implements dynamic port role assignment where ports can switch between blocked and forward states based on connection status. The system dynamically detects failures and reconfigures port roles in real-time, allowing the network to adapt to changing conditions without requiring complex pre-planned redundant paths.
Solution Approach 2:
The patent changes the state parameter of network ports from static (always forward or always blocked) to dynamic (can switch between blocked and forward based on connection status). This parameter change enables the same physical network structure to provide redundancy functionality without adding complex additional components.
2Reliability
If redundant network connections are provided, then network reliability is improved, but the network structure becomes more complex
Solution Approach 1:
The patent segments the network into functional components (network nodes and networking devices) with specific port roles. By dividing the network this way, the system can manage redundancy through localized port role changes rather than requiring complex global reconfiguration, thus reducing overall system complexity.
Solution Approach 2:
The patent introduces broadcast packets as an intermediary mechanism to coordinate port role changes across the network. Instead of requiring complex centralized control or peer-to-peer negotiation, the system uses broadcast packets to propagate connection status information and automatically trigger appropriate port role changes at each node.
3Adaptability or versatility
If port roles are fixed, then the network configuration is simple, but the network cannot adapt to connection changes or failures
Solution Approach 1:
The patent implements a feedback mechanism where network nodes continuously monitor connection status through broadcast packets and automatically adjust port roles based on detected changes. This closed-loop feedback system enables the network to adapt to failures or changes without requiring manual reconfiguration or complex decision-making algorithms.
Data Source
AI summary
Disclosed is a network-connection redundant system for devices with cascade networking capability, and a method applied on the system. Every device capable of network connection preferably has two network ports, which are respectively connected to the same or different network nodes. The route of network packets can be controlled by defining the roles of ports. One emergent redundant connection is achieved. According to the preferred embodiment, every port is defined as one role such as forward port or blocked port after the network formed by the nodes and devices is initialized. It is featured that a plurality of connection-confirmation packets periodically transmitted or received by the network nodes are used to determine whether state of the connection changes or not. If there is any change, the role for each port is re-defined based on the relevant information. A redundant connection is then established.