The Dog is "NEVER" allowed to chase the cat "EVER" lf you allow this to happen you will have a dead cat eventually!
I have lived with 5 dogs and up to 15 cats (animal rescue) for over 14 yr and in all that time not one dog has ever put a single paw forward toward a single cat!
I put a leash on my dog and have him in a down stay If he makes a move towards the cat he gets a down command and a stay again, if he breaks the stay..then his problem is gonna be with "me"!`
Introducing Shepherd to cats
Cat-to-Dog Introductions | Little Big Cat