Network service cross-domain arrangement method for end-to-end delay performance optimization

Abstract

The invention discloses a service function chain cross-domain arrangement method for end-to-end delay performance optimization. The method comprises the following steps: S1, an advanced arranger responds to a service request of a user or a network administrator, and describes the service request as a service map with a weight; S2, the advanced arranger divides the service map into a plurality of sub-service maps with weights and allocates the plurality of sub-service maps to corresponding sub-network domains; S3, a low-level arranger in the sub-network domain performs intra-domain arrangementmapping on the received sub-service map and sends an intra-domain arrangement mapping result to the advanced arranger; and S4, the advanced arranger receives the intra-domain arrangement mapping result and judges whether the sub-service map is successfully mapped, if so, the advanced arranger terminates the processing, or otherwise, the advanced arranger executes S2 again. According to the servicefunction chain cross-domain arrangement method provided by the invention, the abundant available resources of a cross-domain network are can be fully utilized to meet the resource requirements of thenetwork service, and meanwhile, the end-to-end delay of the network service in the cross-domain network is minimized, thereby effectively improving the service experience of terminal users.

Description

technical field [0001] The invention relates to the field of cross-domain deployment of network services. More specifically, it relates to a network service cross-domain orchestration method optimized for end-to-end latency performance. Background technique [0002] Over the past few years, the evolution of communication technology and the role it plays in the daily life of society as a whole has had a huge impact on social and economic development. Usually, when a network user acquires a network application, business traffic needs to obtain additional network services, such as performance enhancement and security services, in addition to normal network connectivity, to ensure the normal operation of the business. In today's network, network operators have deployed a large number of service function devices in network domains such as data center networks, access networks, and backbone networks. Typical service functions include firewall, network address translation, intrus...

AI Technical Summary

Problems solved by technology

There are many defects in this method: in order to make the traffic pass through the service function, the routing policy configuration is complex and error-prone; it is difficult to introduce new network services, which involves complex network configuration modifications; in order to meet the needs of users during peak traffic periods, a large amount of redundancy has to be deployed service function hardware devices, etc.

On the other hand, business traffic passing through multiple cloud data centers will inevitably generate additional network delay

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