Toward Increasing Switching Capacity of Twisted and Folded Clos Network Guaranteeing Admissible Blocking Probability

Anticipated is the establishing of a future data center network, built with a Clos network comprising optical-circuit switches to manage the increasing traffic volume. A twisted and folded Clos network (TF-Clos) expands the switching capacity under a strict non-blocking (SNB) condition compared to a folded Clos network. If we relax the SNB condition, where we allow an admissible blocking probability, it is feasible to increase the switching capacity more. This paper proposes a refined version of our developed design model, guaranteeing an admissible blocking probability. We show the effectiveness of the refined model regarding the switching capacity and computation time.