typedef int (*ip4_session_table_walk_fn_t) (clib_bihash_kv_16_8_t * kvp,
void *ctx);
-void ip4_session_table_walk_cb (clib_bihash_kv_16_8_t * kvp, void *arg);
void ip4_session_table_walk (clib_bihash_16_8_t * hash,
ip4_session_table_walk_fn_t fn, void *arg);