Cheers am better placed RE understanding (non) failover ;-) …
... But am miles from understanding GTM listeners reason being I have found no documentation on listeners / configuring listeners in ver 11.x ; all I have is snippets from ver 10.x and older DEVCENTRAL posts and a cursory overview in the GTM concepts doco.
Suggestion I have from the links I have found is that this is under Global Traffic -> Listeners and has to be a (presumably local?) self IP. Other than the post above I have nothing suggesting these are LTM hosted IPs … Are we saying that DNS REQs hit an LTM ??? Presumably not ...
Can we get ver 11 documentation on how to configure listeners and hopefully through this a functional understanding may flow ?
Also there seems to be contradictory information as to ARP and listeners ... how does ARP work in this context.