§Allow experimenter complete control
qConfigurable link bandwidth, latency, and loss rates, via transparently interposed “traffic shaping” nodes that provide WAN emulation
§… but provide fast tools for common cases
qOS’s, state mgmt tools, IP, batch, ...
qDisk loading – 6GB disk image FreeBSD+Linux
•Unicast tool: 88
seconds to load
•Multicast tool: 40
nodes simultaneously in < 5 minutes
§Virtualization
qof all experimenter-visible resources
qnode names, network interface names, network addrs
qAllows swapin/swapout, easily scriptable