'Setup up initial dvr flows into br-tun'

def setup_dvr_flows_on_tun_br(self):

    if (not self.enable_tunneling):
        return
    self.tun_br.install_goto(dest_table_id=constants.DVR_PROCESS, priority=1, in_port=self.patch_int_ofport)
    self.tun_br.install_goto(table_id=constants.DVR_NOT_LEARN, dest_table_id=constants.LEARN_FROM_TUN)
    self.tun_br.install_goto(table_id=constants.DVR_PROCESS, dest_table_id=constants.PATCH_LV_TO_TUN)
