const NetPoint* gw_dst_net_elm = nullptr;
const NetPoint* prev_gw_src_net_elm = nullptr;
get_global_route(gw_dst_net_elm, prev_gw_src_net_elm, e_route_as_to_as, nullptr);
const NetPoint* gw_dst_net_elm = nullptr;
const NetPoint* prev_gw_src_net_elm = nullptr;
get_global_route(gw_dst_net_elm, prev_gw_src_net_elm, e_route_as_to_as, nullptr);