Need and pain points
There are a large number of access to different links in different office.
In order to the best quality of connection, DNS need to resolve the IP which has low
latency in the different offices.
cloud deployment：SmartDNS deploys in the GSS private cloud. Customer will access by Tunnel to access the dns service.
Serveral SmartDNS redundancy: administrator deploy the multiple servers for SmartDNS in order to the redundancy.
Access Different Root Servers:SmartDNS uses different root dns servers to resolve the domain name in different locations.
SmartDNS will check the location of IP address which will visit the website and share the domain IP which is low latency towards source IP address.