Global DNS Failover
Solution

Global DNS Failover
using IP Anycast & BGP
- Data centers on both coasts, San Jose California, Sterling Virginia announce
the /23 aggregate.
- Both Data centers announce one /24 out of the larger /23 supernet. For
example, San Jose will announce the upper /24 and Sterling will announce
the lower /24. If San Jose fails to respond, DNS queries destined for San
Jose will be routed to Sterling because Sterling will contain the next
longest network match, the /23, and be fulfille by the name servers there.
- Our Global DNS Failover offeres many advantages including:
- Fewer DNS queries failures.
- Scalable to handle multiple name servers in multiple locations.
- Improved performance and load-handling.
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