Nested Network Service Instance Virtual Link Management
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Solution Overview
Problem
Current network service management methods in NFV environments lack the ability to establish and manage network connections from the perspective of a nested network service instance, particularly across multiple administrative domains, leading to inadequate information isolation and inefficient network resource allocation.
Innovation Solution
A virtual link information model is defined from the perspective of a nested network service instance, allowing for the establishment and management of external and internal network connections using Service Access Point (SAP) information, enabling better information isolation and resource allocation between administrative domains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If network service management is performed from the perspective of consumer NFVO only, then network service deployment is simplified, but information isolation between administrative domains deteriorates
Solution Approach 1:
The patent segments the network service management perspective into two distinct viewpoints: consumer NFVO perspective for simplified deployment operations, and nested NS instance perspective for maintaining information isolation. This segmentation allows each administrative domain to manage its resources independently while enabling streamlined service deployment through the consumer NFVO interface.
Solution Approach 2:
The patent introduces virtual link information models as intermediaries that bridge the consumer NFVO and nested NS instances. These virtual link models carry connection information between administrative domains, enabling the consumer NFVO to deploy services across domains while preserving the information isolation boundaries of each domain through structured information exchange.
2Ease of manufacture
If virtual link information model is defined from consumer NFVO perspective only, then deployment process is simplified, but network connection management capability deteriorates
Solution Approach 1:
The patent adds another dimension to the virtual link information model by defining it from both the consumer NFVO perspective (for simplified deployment) and the nested NS instance perspective (for enhanced management capability). This dual-perspective approach enriches the information model with additional attributes and relationships that enable comprehensive network connection management while preserving deployment simplicity.
3Device complexity
If nested NS instance connections are not managed independently, then management complexity is reduced, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent implements dynamic management of nested NS instances by enabling independent connection management at the nested instance level. This allows the system to adapt resource allocation dynamically based on specific service requirements and domain policies, improving resource allocation efficiency while maintaining manageable complexity through automated orchestration mechanisms.
Data Source
AI summary
A network service management method, where the method may include: receiving, by a second network functions virtualization orchestrator (NFVO), a first request sent by a first NFVO; establishing, by the second NFVO, a first connection between the nested network service instance and the composite network service instance and a second connection between the nested network service instance and a member instance in the composite network service instance based on the service access point instance and the information about the service access point instance; and establishing a network connection between the nested network service instance and a member instance in the nested network service instance based on the service access point instance and the information about the service access point instance.