Abstract:During the process of slicing the network for protective basic slices, the security protection infrastructure providers are mainly responsible for responding to slice service requests and allocating resources. However, due to the limited slicing resources they possess, there exists a problem of slow response speed in slice services. Therefore, with respect to the service decision-making process of security protection infrastructure providers, a security protection infrastructure network slice service response model based on the Semi-Markov Decision Process (SMDP) is proposed. Through simulation analysis, it is demonstrated that the model based on SMDP, under the condition of limited resources, is capable of enhancing the utilization efficiency of slicing resources, maximizing profits, and efficiently responding to slice service requests.