FlexNF: Flexible Network Function Orchestration for Scalable On-Path Service Chain Serving. - Jingyu Xiao; Xudong Zuo; Qing Li 006; Dan Zhao 003; Hanyu Zhao; Yong Jiang 001; Jiyong Sun; Bin Chen 011; Yong Liang; Jie Li (IEEE/ACM Trans. Netw., 2024)