Communication Management System Redundant Board Switching
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Solution Overview
Problem
Existing communication management systems, such as media gateway devices, are unable to effectively handle failures in communication processors, packet processing controllers, or layer 2 switches, leading to service disruptions.
Innovation Solution
A communication management system with a redundant configuration, including active and standby systems, where a controller detects failures and switches operations between packet transfer boards, packet processing boards, and layer 2 switch boards, using stored function setting information to maintain service continuity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a redundant configuration of packet data conversion processor is implemented, then communication continuity is improved, but system complexity increases
Solution Approach 1:
The system is divided into multiple independent boards (packet transfer board, packet processing board, layer 2 switch board) with redundant active-standby configurations. Each board can fail independently while maintaining overall system operation, allowing segmented failure isolation and continuous communication service.
Solution Approach 2:
The standby system pre-configures all necessary communication information, connection parameters, and processing settings before failure occurs. When failure is detected, the standby system can immediately take over without requiring real-time reconfiguration, enabling seamless switchover and maintaining communication continuity.
2Loss of time
If automatic system switching is implemented upon failure detection, then service disruption is reduced, but control complexity increases
Solution Approach 1:
The system implements self-diagnosis and self-healing capabilities through automatic failure detection and self-initiated switchover. The control unit monitors system status continuously and automatically triggers standby system activation without external intervention, reducing service disruption time while managing control complexity through centralized automation.
Solution Approach 2:
The system continuously monitors the operational status of active and standby systems through feedback mechanisms. When failure is detected, the feedback signal triggers the control unit to switch to the standby system, creating a closed-loop control system that automatically responds to failures and minimizes service disruption.
3Speed
If function setting information is transferred to standby system, then switching speed is improved, but information management complexity increases
Solution Approach 1:
The standby system pre-loads all necessary function setting information, connection parameters, and processing configurations before failure occurs. This preliminary preparation eliminates the need for real-time information transfer during failure events, achieving fast switchover speed while managing information management complexity through centralized preconfiguration.
Solution Approach 2:
The system maintains identical copies of all function setting information in both active and standby systems. The standby system is a complete replica configured with the same communication parameters, connection tables, and processing settings, enabling immediate takeover without information transfer delays and simplifying information management through duplication.
Data Source
AI summary
A failure is detected in at least one of an active system including an active packet transfer board, an active system packet processing board, and an active system switch board. At least function setting information for executing functions of the active system packet transfer board and the active packet processing board is stored. When failure is detected in active system, a system switching instruction is outputted to the standby system including a standby packet transfer board, a standby system packet processing board, and a standby system switch board. The stored function setting information of one or both of the active system packet transfer board and the active system packet processing board that have been detected a failure is transmitted to the one or both of the standby system packet transfer board and the standby system packet processing board that correspond to boards that have been detected a failure.