+#include <vnet/ip/ip4_mtrie.h>
+
+typedef struct ip4_fib_t_
+{
+ /**
+ * Mtrie for fast lookups. Hash is used to maintain overlapping prefixes.
+ * First member so it's in the first cacheline.
+ */
+ ip4_fib_mtrie_t mtrie;
+
+ /* Hash table for each prefix length mapping. */
+ uword *fib_entry_by_dst_address[33];
+
+ /* Table ID (hash key) for this FIB. */
+ u32 table_id;
+
+ /* Index into FIB vector. */
+ u32 index;
+
+ /* flow hash configuration */
+ flow_hash_config_t flow_hash_config;
+
+ /* N-tuple classifier indices */
+ u32 fwd_classify_table_index;
+ u32 rev_classify_table_index;
+
+} ip4_fib_t;