bad rendering of given enchanted items

when i put this command in a command block, it gives to me a sword with protection 200, protection 2, protection 2 :
/give @p iron_sword 1 0 {ench:[

{id:unbreaking,lvl:200}

,

{id:knockback,lvl:2}

,

{id:smite,lvl:2}

]}
and it's like that for all given enchanted items on my minecraft ! but i want a sword with unbreaking 200 , knockback 2 and smite 2 !

thanks for your help !