Design for two Datacenters

Hi Thorsten,

Make sense. You do right, GTM is DNS based only (dynamic DNS bind). The first solution is to use IP Anycast (expensive) --> one unique IP on two DC.

If you have 2 different VIP on 2 DC without DNS resolution, there is no miracle. You need to create an irule to redirect the user to the other DC if LB is down (all member down).

Or, you could try "Priority Activation Group" in your Pool. But that means LTM can join all the servers on both DC.