linkTemplate.policy = s4u::Link::SharingPolicy::FATPIPE;
linkTemplate.id = "loopback_"+ std::to_string(id);
sg_platf_new_link(&linkTemplate);
linkTemplate.policy = s4u::Link::SharingPolicy::FATPIPE;
linkTemplate.id = "loopback_"+ std::to_string(id);
sg_platf_new_link(&linkTemplate);