Towards timeout-less transport in commodity datacenter networks
Hwijoon Lim, Wei Bai, Yibo Zhu, Youngmok Jung, Dongsu Han · 2021
Despite recent advances in datacenter networks, timeouts caused by congestion packet losses still remain a major cause of high tail latency. Priority-based Flow Control (PFC) was introduced to make the network lossless, but its Head-of-Line blocking nature causes various performance and management problems. In this paper, we ask if it is possible to design a network that achieves (near) zero timeout only using commodity hardware in datacenters.