Priority Group Failback

The iRule in the other question would work but, I'd have to write a different rule for each different priority order. Is there a way to write the iRule based on the priority group .

i do not think you can use the irule patrick suggested since your traffic here is not http.

for tcp traffic, client_accepted event is fired when tcp connection is established. to be able to control connection after establishing, we have to keep collecting and releasing data and when higher priority group member is back online, we drop or reject the existing connection. personally, i do not think this is a good idea.

alternatively, we might be able to use user_alert.conf or icall to automatically disable lower priority group member when the higher group member is up.

the other idea is to configure monitor to check higher priority group member but assign to the lower group member. so, when the higher group member is up, this monitor will make the lower group member down.

for the 2nd and 3rd ideas, action on service down might also be needed.