Network Slice Topology Determination via Sub-Interface Segmentation
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Solution Overview
Problem
Current network slicing technologies lack a solution for collecting and presenting a sub-interface-based network slice topology, which is essential for implementing differentiated service-level agreements (SLAs) and ensuring isolation between various services in 5G and enterprise private line networks.
Innovation Solution
A method and system that determine network slice topologies by obtaining sub-interface information, including correspondences between sub-interfaces and network slice identifiers, to customize and deploy sub-interface-based network slices, ensuring isolation and differentiated requirements for multiple services. This involves using management devices to collect and present network slice topologies through protocols like NETCONF, SNMP, and BGP-LS.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network slicing technology is applied to provide differentiated service-level agreements, then service differentiation and isolation are improved, but there is no technical solution for collecting and presenting sub-interface-based network slice topology
Solution Approach 1:
The patent segments the network topology information by sub-interfaces, where each sub-interface is associated with a specific network slice identifier. The management device collects topology information separately for each sub-interface and determines network slice topologies based on these segmented pieces of information, thereby preventing loss of sub-interface-based topology information while maintaining service differentiation.
2Reliability
If sub-interface-based network slice topology is customized and deployed, then isolation between services and differentiated requirements are ensured, but device complexity increases
Solution Approach 1:
The patent introduces a management device as an intermediary between network devices and the network slice topology determination system. The management device collects sub-interface information from network devices, determines network slice topologies, and presents the topology information. This intermediary approach ensures service isolation through proper topology management while centralizing the complexity in a dedicated management system rather than distributing it across all network devices.
Data Source
AI summary
A method includes obtaining, by a management device, sub-interface information that includes a correspondence between an identifier of a first sub-interface of a first device and a first network slice identifier, a correspondence between an identifier of a second sub-interface of a second device and a second network slice identifier, and information indicating that the first sub-interface is directly connected to the second sub-interface, and determining, by the management device, a network slice topology based on the obtained sub-interface information.