Proposal to Reduce Computation Time in TAS Rescheduling Scheme

Abstract

IEEE802.1Qbv Time-Aware Shaper (TAS) has attracted attention as a technology to realize low-delay communication in various fields. Especially in industrial networks, the demand for low-latency communication between remote areas is increasing, and the realization of a service provider network (SPNW) using TAS is expected. We consider the scheduling scheme of TAS for SPNW. When the scheduling order cannot be controlled, as in SPNW, the bandwidth utilization efficiency is lower than when the scheduling order is ideal. To cope with such problems, we propose a rescheduling scheme focusing on the difference in scheduling difficulty. However, the increase in computational load due to rescheduling has not been discussed. In this paper, we consider a method to reduce the computation time of the rescheduling method.