Forum Discussion
Thanks for the response, I'll try and explain better.
What I'm trying to achieve is returning a "Sorry Page" from the F5 itself, by using priority activation, but without the use of irules (with the exception of the irule that serves up the sorry page).
So 172.29.50.3 is the HTTP VIP with a basic "Sorry Page" irule.
172.29.50.30 is the HTTP VIP for the application which uses the pool app_pool
app_pool has 2 application servers in it, 192.168.1.1 and 192.168.1.2. It also has a 3rd server 172.29.50.3 (the sorry page), which is only activated when the other two are down. However the content at 172.29.50.3 is not being served for the reasons given in my original post.
Currently I'm doing this with an irule on the application VIP that checks to see if any LB members are available, if not, it serves up a sorry page. However I don't want the application VIP to have to process an irule each time to establish if it should serve up a sorry page or not, the priority activation option looks more elegant to me (if I can get it working!)