Topology-Awareness Fault-Tolerant Migration for Node Cascading Failures in Data Center Networks
Weibei Fan, Fu Xiao, Pinchang Zhang, Hui Cai, Lei Han, Shui Yu · IEEE Transactions on Networking · 2025
With the rapid increase in user demand for business traffic, the deployment and migration of virtual service function chains (VSFC) considering network load balancing has become a fascinating research topic. In this paper, we delve into the cascading failures in virtual network function (VNF) migration and design a topology-awareness fault-tolerant migration mechanism for VSFC. Firstly, we design a measurement model for the evolution of network nodes under cascading faults, which provides an evaluation method for node importance. Secondly, we present aTopology andResourceAware VNF fault-tolerant migration framework (TRA) under cascading faults. Finally, we investigate a topology-awareness energy consumption optimization algorithm based on the cascading failure. The proposed algorithm can reduce network energy consumption and alleviate network link congestion while reasonably migrating virtual machines to meet system performance requirements. Through extensive simulation experiments and real testbed evaluations,TRAreduced migration time and average latency by 28.6% and 24.7% compared with the average performance of VVi, TeaVisor, and MiOvnm, respectively. In addition,TRAhas improved revenue to expense ratio and load balancing index by 19.6% and 26.5%, respectively.