'Create the bridge'

def add(self):

    if (self.parent and self.vlan):
        (rtc, _, err) = self._vsctl(['add-br', self.bridge, self.parent, self.vlan])
    else:
        (rtc, _, err) = self._vsctl(['add-br', self.bridge])
    if (rtc != 0):
        self.module.fail_json(msg=err)
    if self.fail_mode:
        self.set_fail_mode()
