F5 APM HA build

Consider your mirror and sync traffic path.

Normally this is a layer 2 network between both devices. can be one network for both or 2 different networks totally up to you.

But the important part comes with the monitoring config that monitors the other node with HA, you need to make sure you have that correctly set, normally i use the sync/mirror ports as well as the internal Self-Ip's and dependant on your design also using the external interface to make sure both devices can see each other.

If this isn't set correctly your HA wont come up!