
Mine always have their pups in a room the other dogs do not have access to for the first two weeks.
This has always been a bedroom until on last two occasions when I have had them in the living room, but where the other dogs could not go as a tall gate is between kitchen and living room. This has worked well as the sofa is one that can be used as a double bed for me.
At two weeks pups are transfered to kitchen and as Jazzychi has said I leave it to Mum to let the others know what she will stand in the way of nosiness. the other dogs very quickly learn to avert the gaze at first and gradually as pups grow she allows more interaction.
Friends in my breed advised this is best, and for me it has the added benefit of keeping Mums interest in her pups because as a much loved family member they are often torn between their maternal instincts and wanting to be with us. This way they can keep a close watch on the babies and still be in the centre of things.
I still feel as with Wild carnivores that the others are best kept away from pups until their eyes are open to avoid stressing Mum too much and for whelps safety. It doesn't happen often but it has been known for another bitch to kill a litter.
My other dogs have never been under a year old when I have had a litter, and I would be much more cautious about having a young pup near a litter.