In the event, 'ip -o link' return a false negative, that is, when
there is a connection, but for some reason it is a zombie connection,
I am thinking about parsing /run/network/ifstate to decide whether a
device should be connected.

This will be used to disconnect 'zombie connections'. As it is, netman
and the backend, refuse to disconnect a connection if the latter does
not exist or if it is mistakenly reported as inexistent by 'ip -o
link'.

Edward