System-on-Chip design is facing increasing challenges in its integration, global wiring delay and power dissipation. Interconnection network technology has the advantage over conventional bus technology in its scalability; on the other hand, asynchronous circuit design technology may offer power saving and tackle the clock-skew problem. Chip designers are thus turning their attention to Network-on-Chip solutions. Packetswitches play a key role in interconnection networks and this paper focuses on their implementation as asynchronous circuits. The results of experiments run to evaluate several aspects of the routing switch implementation are presented.