Orchestrating Network Functions in Software-Defined Networks

作     者：Hongchao Hu Lin Pang Zhenpeng Wang Guozhen Cheng 

作者机构：National Digital Switching System Engineering & Technological R&D Center Zhengzhou 450002 China 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2017年第14卷第2期

页      面：104-117页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the China Postdoctoral Fund Project (No.44603) the National Natural Science Foundation of China (No.61309020) the National key Research and Development Program of China (No.2016YFB0800100, 2016YFB0800101) the National Natural Science Fund for Creative Research Groups Project(No.61521003) 

主　　题：software-defined network network function function orchestrating 

摘      要：*** networking(SDN) enables *** companies to participate in the network function innovations. A number of instances for one network function will inevitably *** in the network. Although some orchestration architecture has been proposed to chain network functions, rare works are focused on how to optimize this process. In this paper, we propose an optimized model for network function orchestration, function combination model(FCM). Our main contributions are as following. First, network functions are featured with a new abstraction, and are open to external providers. And FCM identifies network functions using unique type, and organizes their instances distributed over the network with the appropriate way. Second, with the specialized demands, we can combine function instances under the global network views, and formulate it into the problem of Boolean linear program(BLP). A simulated annealing algorithm is designed to approach optimal solution for this BLP. Finally, the numerical experiment demonstrates that our model can create outstanding composite schemas efficiently.