I want to set up mirroring on a 4 node clustered (A,A,A,P) environment. Im new to clustering and mirroring so i want to make sure i understand this. In my scenario, each of the 3 active nodes will have mirroring setup for it's specific databases. What i'm not sure if i understand is if i would setup a endpoint on each of the 3 nodes using a different listener port (ie 5021, 5023, 5024) or would i just use the same one ( ie 5022) for all three endpoints within the cluster?