xbt_cfg_register(&_surf_cfg_set,
"network_model", description, xbt_cfgelm_string, &default_value, 1, 1,
&_surf_cfg_cb__network_model, NULL);
xbt_cfg_register(&_surf_cfg_set,
"network_model", description, xbt_cfgelm_string, &default_value, 1, 1,
&_surf_cfg_cb__network_model, NULL);