We proposed a straight-forwarding route pre-configuration (SFRP) router architecture for the communication spatial locality when packets traverse under dimension-ordered routing mode, which was adapted to the latency optimization for the packets straight forwarding traversal. In our SFRP router, a corresponding straight-forwarding route was preconfigured at each input port, which connected the input port with its corresponding straight forwarding output port. Combining appropriate route reuse with termination mechanism, the subsequent packets satisfying the comparative conditions were expected to directly forward to crossbar without SA stage, hence reducing the average latency for packets traversal. Our evaluation with synthetic workload traffic shows that SFRP router can achieve obvious performance improvement by up to 59%, 46%, 25.6% and 9.5% respectively before the packets injection rate is saturated, compared with the BASE, BASE_LR, BASE_LR_SPC and PSEUDO_CIRCUIT routers. In the real application traffic workloads, the performance improvement of the SFRP router is analogous to that of PSEUDO_CIRCUIT router. Compared with other three kinds of routers, SFRP router can achieve obvious performance improvement by up to 57%, 45% and 21% respectively.