Network Service Management for NFV Hardware Replacement
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Solution Overview
Problem
Network service failures or maintenance require complex and time-consuming recovery processes, often resulting in significant downtime due to the difficulty in identifying and addressing hardware-related issues within network function virtualization (NFV) systems.
Innovation Solution
A network service management apparatus and method that detects the necessity of hardware changes, deletes virtual machines on affected hardware, and activates recovery functions to streamline the recovery process by categorizing failure causes and utilizing redundant resources for efficient hardware replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hardware is changed for maintenance or failure recovery, then system reliability is improved, but network service interruption time increases
Solution Approach 1:
The patent applies preliminary action by detecting hardware failure conditions and deleting associated virtual machines before the hardware is physically replaced. This preparatory step ensures that when hardware replacement occurs, the virtual machines can be quickly restored without delays caused by failure detection or complex recovery procedures, thereby reducing network service interruption time while maintaining system reliability
2Reliability
If recovery schemes are designed to address various failure situations, then system reliability is improved, but the recovery process becomes complicated and time-consuming
Solution Approach 1:
The patent applies parameter changes by monitoring hardware status parameters (such as failure conditions, maintenance states, and operational parameters) to determine when and how to initiate recovery actions. By changing the monitoring parameters and using predefined thresholds or conditions, the system can automatically trigger appropriate recovery procedures without requiring complex decision-making logic, thus simplifying the recovery process while maintaining reliability
3Measurement precision
If comprehensive monitoring is implemented to detect hardware issues, then failure detection accuracy is improved, but system complexity increases
Solution Approach 1:
The patent applies self-service by implementing monitoring functions that automatically detect hardware failures, trigger virtual machine deletion, and initiate recovery procedures without requiring complex external management systems. The monitoring system uses predefined rules and automatic responses to handle failure detection and recovery, reducing the need for complex manual intervention or sophisticated monitoring architecture while maintaining high detection accuracy
Data Source
AI summary
A migration controller of a network service management apparatus requests, upon detection of the necessity of replacing redundant hardware running on a network system with another hardware, an orchestration unit to disable the redundant hardware. Further, issuing a request to delete a virtual machine on the redundant hardware to a virtualized infrastructure manager causes the network system to perform a failure recovery process to redeploy the virtual machine to hardware after replacement.