void ip4_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable);
int ip4_address_compare (ip4_address_t * a1, ip4_address_t * a2);
/* Send an ARP request to see if given destination is reachable on given interface. */
clib_error_t *ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst,
void ip4_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable);
int ip4_address_compare (ip4_address_t * a1, ip4_address_t * a2);
/* Send an ARP request to see if given destination is reachable on given interface. */
clib_error_t *ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst,