_(EXCEEDED_NUMBER_OF_PORTS_CAPACITY, -96, "Operation would exceed capacity of number of ports") \
_(INVALID_ADDRESS_FAMILY, -97, "Invalid address family") \
_(INVALID_SUB_SW_IF_INDEX, -98, "Invalid sub-interface sw_if_index") \
-_(TABLE_TOO_BIG, -99, "Table too big")
+_(TABLE_TOO_BIG, -99, "Table too big") \
+_(CANNOT_ENABLE_DISABLE_FEATURE, -100, "Cannot enable/disable feature")
typedef enum
{