TCP-FITDC: An adaptive approach to TCP incast avoidance for data center applications

TCP incast is an issue of great importance to the performance of many-to-one communication sessions in data centers. It is resulted from the mismatch between the RTO mechanism of existing TCP congestion control algorithms and the requirements and parameters in data center applications, leading to gross under-utilization of link capacity, high latency and packets loss rates. In this paper, we propose a novel and adaptive delay-based mechanism for TCP incast prevention in data center applications. Theoretical analysis and simulation results show significant performance improvement as compared with existing methods.