Forum Discussion
Hamish
Jan 30, 2013Cirrocumulus
GTM (should if implemented correctly) fails over in exactly the same way any other dns service (eg bind) fails over...
All your GTM VS's are listed as NS records for the domain (or traffic passes through them as transparent inline, but that implies limitations so i never deploy like that). So when resolution is required for the delegated domain, they get queried... If one fails, the other(s) keep responding... As far as the outside world is concerned they're just another dns server. The smarts is in their montoring and decision making on which ips to serve.
H