Forum Discussion
Jan 12, 2015
There is an option in GTM to send multiple A-records in a sorted order upon incoming DNS requests.
Same mechanism is used by others for high availability. The client receives multiple answers, tries one and fails back to another after timeout.
Please be aware, that the sorted order of records (having a prioritization of a DC in mind) is kind of useless, as they may be re-ordered by the client´s DNS resolver or in the client.