Well that was a very trying day. In sole care of my two kids, with no car, and a severe storm outside, and work rings me up because something has taken 90% of the network offline! The boss had to pick me up in her car and bring me and the kids to work. Turns out to be some idiot installing a FOBOT knocked the power cable to the core fibre switch out. At least the kids were very well behaved, and I got the network up and running quick enough.