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