GTM Topology Load-Balancing
Looking for advice on GTM load balancing between regions (ie East/West). Standing up another datacenter and want traffic to be directed to the GTM in their region. Already have an operative GTM and LTM. Currently GTM Pools are set for "Global Availability" but i think the future setting should be "Topology". I confused on what will happen when a region is lost. Need contingency plan.