Using A 3-Dns Controller As A Standard Dns Server - Dell 3-DNS Administrator's Manual

Using a 3-DNS Controller as a standard DNS server

Figure 2.2 DNS name resolution process
®
3-DNS Administrator Guide
the big3d agents collect the data, they each broadcast the collected data to
all systems in the network, again allowing for simple and reliable metrics
distribution.
When a client requests a DNS resolution for a domain name, an LDNS
sends the request to one of the 3-DNS Controllers that is authoritative for
the zone. The 3-DNS Controller first chooses the best available virtual
server out of a pool to respond to the request, and then returns a DNS
resource record to the requesting local DNS server. The LDNS server uses
the answer for the period of time defined within the resource record. Once
the answer expires, however, the LDNS server must request name resolution
all over again to get a fresh answer.
Planning the 3-DNS Configuration
2 - 3