Does F5 load balancer intelligent in case of ports are down
Does F5 load balancer intelligent in case of ports are down? Suppose, if there are 2 servers behind F5 load balancer and in case application got down(who is listening on port 80) on one server so how can the F5 load balancer stop sending transactions on infected machine.
It depends on where you've added your health monitor and how you've configured it
Typical scenario: you want the other ports to remain active after a single port has stopped responding
You need to have configured several pools, each with their own port, eg
PoolA:
name: http_pool
members: 10.10.10.10:80, 10.10.10.12:80
monitor: tcp_half_open (no port denfined in the monitor settings)
PoolB
name: https_pool
members: 10.10.10.10:443, 10.10.10.12:443
monitor: tcp_half_open (no port denfined in the monitor settings)
If 443 stops responding 80 will still work. Same if it is the other way around.
The monitor can be configured in the GUI
Selecting a monitor: Local Traffic > Pool > Select your pool > find the monitor in the right window and move it to the left
Creating a custom monitor: Local Traffic > Monitor > Create