Method and entities for service availability management

Abstract

The invention provides a resource orchestration entity (171) and a method (300), for enabling end-to-end service reliability and availability with service flow differential deployment of a network service with one or more service flows in a network service chain comprising one or more network function nodes (241, 242, 243), connected via a plurality of intermediate networking nodes. The resource orchestration entity (171) is arranged to: obtain an information element of service availability level (250) in at least one descriptor (223, 224, 226) for defining the service availability level requirements of the service flow from a network service management entity (220); and provide the information element of service availability level (250) together with an identification reference of the service flow, to a resource management entity (173), for assigning resources (151, 152, 153) comprising network function nodes (241, 242, 243) and their inter-connections in Virtual Network (153) layingon the Network hardware (163) comprising networking nodes, when instantiating a network service comprising service flows in the network service chain.

Description

technical field [0001] Embodiments described herein relate generally to a resource orchestration entity and a method therein. Specifically, this paper describes a mechanism for achieving end-to-end service reliability through service flow differentiated network service deployment using one or more service flows in a network service chain comprising one or more network function nodes In terms of performance and availability, the one or more network function nodes are connected through multiple intermediate network nodes. Background technique [0002] Network Functions Virtualization (NFV) aims to change the way network operators build networks by developing standard Internet technology (Internet Technology, IT) virtualization technology, thus integrating various types of network equipment into various On industry-standard high-capacity servers, switches and storage in NFV infrastructure network nodes and end-user premises. [0003] For traditional high-availability systems,...

AI Technical Summary

Problems solved by technology

[0009] Second, when the reliability and availability mechanism is configured and the equipment has been shipped to the service provider, the service provider cannot change the service reliability and availability configuration

[0010] Finally, there is no end-to-end mechanism for operating end-to-end service availability with traffic flow differentiation in the current system, nor does it provide any end-to-end service availability mechanism with traffic flow difference management

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