def remove_interface(self, name):
name = self.clean_iface_name(name)
if name not in self.interfaces:
raise KeyError("%s does not have an interface on %s" % (self, name))
logger.info("Removing interface %s from %s", name, self)
is_active = self.is_active
nic = Nic(name)
if is_active:
nic.ifdown()
nic.config.remove()
nic.config.save()
return True
