Selective Assignment of a GSLB Service to DNS Virtual Services

Avi Load Balancer supports GSLB configurations that need to selectively assign DNS request-handling on a sub-domain basis to particular Avi Load Balancer DNS virtual services.

Use Case

Consider the following scenarios:

• DNS responsibility pushed to all DNS virtual services in the GSLB setup.

• Global services in multiple subdomains.

• Application VIPs residing in separate routing domains.

The health checking Avi Load Balancer DNS SEs perform will require crossing routing-domain boundaries, which is unacceptable.

Using the Avi Load Balancer, you can configure several GSLB DNS virtual services, probably one per routing domain, and selectively assign DNS request-handling on a sub-domain basis to the various Avi Load Balancer DNS virtual services, such that the VIP-serving SEs can reside in the same routing domain as the DNS virtual service that serves up their virtual IPs.