Open Stack

Could someone please dumb it down for me in ten sentences or less?

I'm well aware what a network and how to manage it. I've worked
as a network administrator for several years, managing huge Cisco
networks (thousands of routers, tens of thousands of physical and
virtual hosts with VLANs, VPNs etc etc).


However, I do not understand where Neutron fits into this! Am I
possibly over thinking it (wouldn't be the first time :).
-- 
Turbo Fredriksson
turbo at bayour.com