Synchronize complex animator

I am trying to find the best way to synchronize the animator of a player from the server to a client.So far I saw the best method would be using RPC's and transmit a parameter to activate a certain state of the animator.

But consider the situation in which a RPC is lost and the client receives only a second state.But the animator at the client cannot jump to second state if it didn't go through the first state which was lost.

Also if a client connects later I would need to use RPCBufferred, but I know this is not too good since a client may connect to the server 1 hour later ,but all states that took place during that hour would be added to the buffer, instead of only knowing of the last state when the client connects.