+ Open vSwitch is a production quality, multilayer, software-based, Ethernet
+ virtual switch. It is designed to enable massive network automation through
+ programmatic extension, while still supporting standard management interfaces
+ and protocols (e.g. NetFlow, sFlow, SPAN, RSPAN, CLI, LACP, 802.1ag). In
+ addition, it is designed to support distribution across multiple physical
+ servers similar to VMware's vNetwork distributed vswitch or Cisco's Nexus
+ 1000V.
+ .