Virtual Distributed Ethernet. wirefilter command.

 VDE is a virtual switch that can connect multiple virtual machines together,
 both local and remote.
 .
 Components of the VDE architecture are VDE switches (virtual counterpart of
 ethernet switches) and VDE cables (virtual counterpart of a crossed-cable used
 to connect two switches).
 .
 This package contains wirefilter to emulate delays and packet loss on virtual
 wires