Error:

ghost@dove:~$ sudo /etc/init.d/networking restart
[warn] Running /etc/init.d/networking restart is deprecated because it may not re-enable some interfaces ... (warning).
[....] Reconfiguring network interfaces...Ignoring unknown interface eth0=eth0.
RTNETLINK answers: File exists
Failed to bring up eth0.1.
RTNETLINK answers: File exists
Failed to bring up eth0.2.
done.