ZTE cooperates with mainstream NFV vendors based on Openlab making a crossed verification plan and scheme of layer, VIM layer, VNF layer and NFVO layer together with them, finds and solves multi-vendor interoperability problems and reliability problems in advance, accumulates abundant multi-vendor integration experience, and builds an E2E solution knowledge repository. ZTE provides a multi-scenario, open and customizable integration solution to satisfy the customer's different requirements based on the Openlab experience repository. With pre-integration verification in Openlab, the solution can decrease the risk of system commercialization greatly, shorten the online launch time of new services, and decrease the construction cost.