NFV Management Apparatus Maintenance Mode Migration

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Solution Overview

Problem

In the NFV architecture, there is a lack of defined cooperation between individual VIM and NFVI during live migration and system switching, leading to service interruptions and inefficiencies in resource management.

Innovation Solution

A management apparatus and system that transitions virtualization infrastructures to a maintenance mode, instructs movement of virtualization deployment units between active and standby systems, and releases the maintenance mode after completion, enabling efficient cooperation between VIM and NFVI for live migration and system switching without service interruptions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If live migration is performed without defined cooperation between VIM and NFVI, then service continuity may be maintained, but service interruptions occur and resource management efficiency deteriorates

Engineering Contradiction:

Improveservice continuityVSAvoidresource management efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent applies preliminary action by transitioning the NFVI to maintenance mode before live migration begins. This preparatory step ensures that resources are properly reserved and allocated, preventing service interruptions during migration while maintaining efficient resource management through coordinated VIM-NFVI cooperation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback mechanisms where the VIM monitors the NFVI state during live migration and adjusts resource allocation accordingly. This closed-loop control ensures service continuity is maintained while optimizing resource management efficiency throughout the migration process.

Inventive Principle:

Principle #23Feedback

2Productivity

If maintenance is performed on NFVI without transitioning to maintenance mode, then resource availability is maintained, but service interruptions occur

Engineering Contradiction:

Improveresource availabilityVSAvoidservice continuity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary action by transitioning the NFVI to maintenance mode before maintenance operations begin. This ensures that appropriate resource allocation and isolation measures are in place, maintaining service continuity while enabling necessary maintenance activities.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent segments the NFVI into maintenance and operational portions through the maintenance mode transition. This allows maintenance activities to be performed on specific components without affecting overall service availability, resolving the contradiction between resource availability and service continuity.

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If virtualization deployment units are moved without coordinated management, then flexibility is improved, but service interruptions and management complexity increase

Engineering Contradiction:

ImproveflexibilityVSAvoidmanagement complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a universal maintenance mode framework that works across different NFVI configurations and virtualization deployment unit types. This standardized approach enables flexible movement of VDUs while simplifying management through consistent procedures, reducing management complexity despite increased flexibility.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11099869B2Management of network functions virtualization and orchestration apparatus, system, management method, and program

Publication Date: 2021.08.24 NEC CORP

AI summary

Provided a management apparatus including a maintenance mode setting unit that transitions a first virtualization infrastructure (NFVI0) to a maintenance mode, a mobility control unit that at least instructs a virtualization deployment unit (VDU) on the first virtualization infrastructure in the maintenance mode to move to a second virtualization infrastructure (NFVI1), and a maintenance mode release unit that releases the maintenance mode of the first virtualization infrastructure (NFVI0).