Network Server Route Switching for High-Reliability Path Establishment
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Solution Overview
Problem
Existing network switching techniques fail to establish high-reliability paths considering the time axis and user on-demand requests, leading to inefficiencies in resource management and network operation.
Innovation Solution
A route switching method where a server manages path information for both working and backup paths in every time frame, calculating and pre-establishing backup paths before failures occur, allowing quick switching between them when necessary, using a server that includes a resource management unit and high-reliability-path requesting unit to handle user connection requests and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backup paths are calculated and established in advance, then recovery speed improves, but network resource consumption increases
Solution Approach 1:
The patent calculates and establishes backup paths in advance before failures occur. The path calculation unit computes backup paths based on current network topology, and the path establishment unit sets them up proactively, so that when a failure occurs, the system can immediately switch to the pre-established backup path without delay, thus improving recovery speed while managing resource consumption through selective pre-establishment.
2Reliability
If backup paths are established for all possible failures, then system reliability improves, but device complexity increases
Solution Approach 1:
The patent implements differential backup path management where different backup strategies are applied to different paths based on their importance and failure probability. Critical paths receive pre-established backup paths, while less critical paths use on-demand backup establishment. This localized approach ensures high reliability for essential services while avoiding the complexity of managing backup paths for all possible failures uniformly.
3Measurement precision
If path information is managed in real-time, then path accuracy improves, but information processing load increases
Solution Approach 1:
The patent implements periodic updates of path information at predetermined intervals rather than continuous real-time monitoring. The path calculation unit periodically recalculates backup paths based on updated network topology information, and the server notifies boundary node apparatuses of changes. This periodic approach maintains sufficient path information accuracy while significantly reducing the processing load compared to continuous real-time updates.
Data Source
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AI summary
Provided is a network switching technique for establishing a high-reliability path, with consideration of the time axis, in response to a request for a connection from a user. A server apparatus (5) includes a connection-request receiving means (201), a resource managing means (202) for managing the resources of a core network (2), a route calculating means (203) for calculating the route of an operation-side path (61) and the route of an auxiliary-side path (63) in response to a request for a connection from a user, a high-reliability-path requesting means (204) for requesting that an originator node apparatus (10) establish the operating-side path (61), a response receiving means (205) for receiving a response to a request for the operating-side path (61), an operating-side path establishment signal receiving means (206), an auxiliary-side path establishment signal receiving means (207) for receiving the path switched by the originator node apparatus (10), a path information updating means (208), and a storage means (209).