+static clib_error_t *
+ip4_config (vlib_main_t * vm, unformat_input_t * input)
+{
+ ip4_main_t *im = &ip4_main;
+ uword heapsize = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "heap-size %U", unformat_memory_size, &heapsize))
+ ;
+ else
+ return clib_error_return (0,
+ "invalid heap-size parameter `%U'",
+ format_unformat_error, input);
+ }
+
+ im->mtrie_heap_size = heapsize;
+
+ return 0;
+}
+
+VLIB_EARLY_CONFIG_FUNCTION (ip4_config, "ip");
+