Improving the Incast Performance of Datacenter TCP by Using Rate-Based Congestion Control
Jingyuan Wang, Yunjing Jiang, Chao Li, Yuanxin Ouyang, Zhang Xiong · IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences · 2014
We analyze the defects of window-based TCP algorithm in datacenter networks and propose Rate-based Datacenter TCP (RDT) algorithm in this paper. The RDT algorithm combines rate-based congestion control technology with ECN (Explicit Congestion Notification) mechanism of DCTCP. The experiments in NS2 show that RDT has a potential to completely avoid TCP incast collapse in datacenters and inherit the low latency advantages of DCTCP.