XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
if (cluster->router_id.empty())
cluster->router_id = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;
XBT_DEBUG("<router id=\"%s\"/>", cluster->router_id.c_str());
if (cluster->router_id.empty())
cluster->router_id = std::string(cluster->prefix) + cluster->id + "_router" + cluster->suffix;