tmp_dst_name = HOST_PEER(dst->name());
if ((int)xbt_dynar_length(upDownLinks)>dst->id()) {
info = xbt_dynar_get_as(upDownLinks, dst->id(), s_surf_parsing_link_up_down_t);
if(info.link_down) { // link down
tmp_dst_name = HOST_PEER(dst->name());
if ((int)xbt_dynar_length(upDownLinks)>dst->id()) {
info = xbt_dynar_get_as(upDownLinks, dst->id(), s_surf_parsing_link_up_down_t);
if(info.link_down) { // link down