Forum Discussion
ZAHIDHASEEB
Nimbostratus
NimbostratusDoes 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 ho...
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
Vijay_E
Cirrus
Cirrus- ZAHIDHASEEB
Currently I am reading the referred link regarding the monitoring actions or behavior which you shared in last post.
As per my understanding in case the provided service/port is down on node behind F5 LB then the node will be marked as down and F5 LB will not entertain the new connections until the port on node UP again. Now here I have another concern. Actually my node hosted an application which receives connections requests on different ports means different services are LISTENING on different ports. Suppose if a single port become down then complete node will be marked as down and the rest of ports will also not be able to facilitate the new connections
Second point. Does the monitor configuration setting is available thru GUI. Please share any technote if available
Heinrichm5Altocumulus
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