NETWORK SERVICE ESTABLISHMENT METHOD, COOPERATION CONTROL CENTRE AND NETWORK SYSTEM

摘要

The present invention provides a network service establishment method, an orchestration control center, and a network system, and relates to the communications field, so as to improve network resource utilization, and reduce network establishment costs. The method includes: obtaining, by the orchestration control center by means of screening according to QoP information and SLA information of a service, all target service protection types that satisfy the QoP information and/or the SLA information of the service for each layer of network in a multi-layer network; determining, according to all the target service protection types of each layer of network, at least one group of multi-layer service protection types that satisfy the QoP information and the SLA information of the service for the multi-layer network; determining a group of target multi-layer service protection types of the service according to network topology information and resource usage of each layer of network from the at least one group of the multi-layer service protection types, where the service needs fewest network resources in the target multi-layer service protection types; and sending an instruction message that carries the target multi-layer service protection types to a network controller corresponding to the multi-layer network.