Poster: Programmable Cycle-Specified Queue for Deterministic Networking
Yudong Huang, Shuo Wang, Shiyin Zhu, Guoyu Peng, Xinyuan Zhang, Tian Gong Pan, Tao Huang, Lei Zhou, Zuopin Cheng, Daorong Guo, Hui Lin, Zhang Lianqing, Juyan Lei, Liangzhang Xu, Wei Wang, X. Liu, Xuejun You, Yunjie Liu · 2023
The emerging time-critical applications pose intense demands for enabling large-scale deterministic networks. In this paper, we propose a new Programmable Cycle-Specified Queue (PCSQ) for wide-area deterministic packet scheduling. We implement the first end-to-end high-precision rotation dequeuing, which enables microsecond-level time slot resource reservation (noted as T) and especially jitter control of up to 2T. We prototype the PCSQ scheduler on an FPGA. The PCSQ-enabled switches can guarantee bounded delay and jitter transmission on a realistic testbed.