Cross-Domain Network Service Deployment via Orchestrator Gateways
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Solution Overview
Problem
Existing Network Function Virtualization (NFV) technologies lack a method to deploy network services across different management domains, limiting the ability to instantiate and manage virtualized network functions across multiple orchestrators.
Innovation Solution
A method and apparatus for deploying network services by enabling information exchange between orchestrators, allowing for the instantiation and management of virtualized network functions across different domains through a primary and secondary orchestrator collaboration, including the determination of domain-specific VNF deployment and lifecycle management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an NFVO deploys NS only in its own management domain, then deployment control and management are simple and reliable, but the system lacks adaptability to deploy services across multiple domains
Solution Approach 1:
The patent introduces a domain gateway as an intermediary component between different management domains. The domain gateway receives deployment requests from the NFVO, translates them into domain-specific operations, and coordinates with other domain gateways to enable cross-domain NS deployment. This intermediary approach allows complex multi-domain operations without requiring direct complex coordination between all NFVO components.
Solution Approach 2:
The patent segments the management domain into multiple hierarchical levels: the NFVO level for overall service orchestration, the domain gateway level for domain-specific coordination, and the VIM level for resource management. This segmentation allows each layer to handle specific aspects of cross-domain deployment independently, reducing overall system complexity while enabling versatile cross-domain service deployment.
2Loss of information
If NFV systems use centralized management, then service deployment is controlled and reliable, but information exchange between different domains is limited
Solution Approach 1:
The patent extends the traditional single-dimension centralized management model by adding a spatial dimension through domain gateways that operate at the boundary between management domains. This creates a multi-dimensional information exchange architecture where information can flow both centrally through the NFVO and laterally between domain gateways, preventing information loss while maintaining deployment efficiency.
Solution Approach 2:
The patent implements preliminary action by having domain gateways pre-establish information exchange channels and protocols between different management domains before actual service deployment. This pre-configuration of communication pathways ensures that information can be exchanged efficiently when deployment requests are made, avoiding delays while maintaining centralized control through the NFVO.
Data Source
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AI summary
The present invention discloses a method and an apparatus for deploying a network service. The method includes: obtaining, by a primary orchestrator, a network service instantiation request, where the network service instantiation request is used to request the primary orchestrator to instantiate the network service; obtaining network service description information across orchestrator management domains; determining, according to the network service description information, a first virtualized network function that needs to be deployed in a management domain of a secondary orchestrator; and sending a virtualized network function instantiation request to the secondary orchestrator, where the virtualized network function instantiation request is used to request the secondary orchestrator to instantiate the first virtualized network function, where a management domain of the primary orchestrator is different from the management domain of the secondary orchestrator. Cross-domain deployment of a network service can be implemented by using the method or the apparatus of the present invention.