+extern int gbp_subnet_add (u32 rd_id,
+ const fib_prefix_t * pfx,
+ gbp_subnet_type_t type,
+ u32 sw_if_index, epg_id_t epg);
+
+extern int gbp_subnet_del (u32 rd_id, const fib_prefix_t * pfx);
+
+typedef walk_rc_t (*gbp_subnet_cb_t) (u32 rd_id,
+ const fib_prefix_t * pfx,
+ gbp_subnet_type_t type,
+ u32 sw_if_index,
+ epg_id_t epg, void *ctx);