http monitor send string: IP node / name node / pool name

Chimy It is not possilbe to perform this dynamic host field in a single health monitor for anything that is built in. It might be possible to create an external health monitor to do this but I'm not familiar enough with external monitors in order to do this. In addition, having an external monitor ends up using significantly more resources and over complicates the configuration of your F5. You should create either multiple pools with a unique health monitor per pool or one pool and assign multiple health monitors for each host and then utilize an iRule to perform validation on what health monitors are passing and failing and send the appropriate failed response to the client for specific health monitor failures. This second option is a bit more complicated and you're better off creating a unique pool and health monitor per host.