Packet delay variance analysis of the CQ switch under the unbalanced traffic

The results of packet delay variation analysis for 32×32 crosspoint queued switch with unbalanced arrival traffic are presented in this paper. We analyzed switches with various buffer lengths for fixed-size packet lengths at switch inputs using several scheduling algorithms, i.e., longest-queue-first, round-robin, exhaustive-round-robin and frame-based-round-robin-matching. The results have shown that the round-robin algorithm gives the best performance among observed algorithms, considering delay variation.