Network Service Management Failure Recovery
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Solution Overview
Problem
Network service failures due to hardware issues lead to inefficient recovery processes, causing prolonged downtime and inconvenience to users, as existing recovery methods are complex and time-consuming, especially when hardware replacement is required.
Innovation Solution
A network service management apparatus and method that acquires failure information, identifies the type of failure, and initiates a targeted recovery process by updating virtual machine state information and utilizing redundant resources to minimize downtime, allowing for efficient failure recovery and hardware replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a comprehensive recovery scheme is designed to address various failure situations, then the system can handle different types of failures, but the recovery process becomes complicated and time-consuming
Solution Approach 1:
The patent segments the failure recovery process into distinct phases: failure detection, failure type classification, and targeted recovery execution. By dividing the comprehensive recovery scheme into modular components, the system maintains adaptability to various failure types while simplifying the overall process through structured organization of recovery operations.
Solution Approach 2:
The patent implements preliminary classification of failure types before executing recovery operations. By pre-defining failure categories and their corresponding recovery procedures, the system prepares recovery strategies in advance, eliminating the need for complex real-time decision-making and reducing recovery time while maintaining versatility.
2Device complexity
If traditional recovery methods are used without failure type identification, then the recovery process is simple, but the recovery time is prolonged due to lack of targeted response
Solution Approach 1:
The patent introduces a feedback mechanism that provides information about the detected failure type to the recovery process controller. This feedback enables the system to select and execute the appropriate recovery strategy based on actual failure conditions, significantly reducing recovery time while maintaining process simplicity through automated decision-making.
Solution Approach 2:
The patent changes the parameter of failure response by introducing failure type classification as a controlling variable. Instead of using a single uniform recovery process, the system adjusts the recovery approach based on the classified failure type, transforming the recovery process from a static simple procedure to a dynamic adaptive process that reduces downtime.
3Reliability
If manual intervention is used for failure recovery, then the recovery process is controllable, but the recovery speed is slow and affects service availability
Solution Approach 1:
The patent implements a self-service recovery mechanism where the system automatically detects failures, classifies failure types, and executes appropriate recovery operations without manual intervention. The automated failure information acquirer and recovery process controller enable the system to service itself, dramatically improving recovery speed while maintaining reliability through predefined recovery procedures for different failure types.
Solution Approach 2:
The patent replaces manual mechanical intervention with an automated information-processing system. By substituting human operators with an automated failure detection and classification mechanism that processes failure information and triggers appropriate recovery actions, the system achieves both high speed and reliable control through systematic automated decision-making.
Data Source
AI summary
A failure information acquirer of a network service management apparatus acquires, from a network system, a VNF failure recovery permission request and makes an inquiry to a virtualized infrastructure manager about a state of corresponding hardware to determine a cause of a failure. A recovery process controller grants, when the failure is caused by software, the network system recovery permission, and requests, when the failure is caused by hardware, the virtualized infrastructure manager to cause state information on a corresponding virtual machine to indicate an error and then grants the recovery permission.


