(vnet_buffer (b[0])->sw_if_index[VLIB_RX] ==
nsm->sw_if_index0) ? nsm->sw_if_index1 : nsm->sw_if_index0;
ep->output_next_index =
(vnet_buffer (b[0])->sw_if_index[VLIB_RX] ==
nsm->sw_if_index0) ? nsm->sw_if_index1 : nsm->sw_if_index0;
ep->output_next_index =