Should have little affect your pup, i will not say that i wont because then i will be lieing.
With that said i let my pups around my older dogs until around 4 months or so, because alot of times i have to seperate them earlier.
Some older dogs will or will not try to kill the pup, depending on the dog because ( i have some males, that will never harm a pup, but i have a few that will attempt to harm them on sight). For as the pup some most pups begin there first stage of maturity around 4-6 months, which is one reason i seperate them at that age. So with that said
i would just interpret my message however you feel