Now that we have discussed aspects of network design along with the tools of network
simulation, several simulation examples are presented.These examples are not meant
as a detailed study of any particular aspect of network or router design. Rather, they
are designed to both introduce several useful experiments that can be performed
on a typical interconnection network and emphasize some interesting and perhaps
All simulations in this chapter were performed with the detailed, ﬂit-level simu-
lator described in Appendix C. Unless otherwise stated, the routers are input-queued
with an input speedup ...