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A DTC LBDN is a load balanced domain name object that is used by DNS Traffic Control to process DNS queries for load balanced resources. You can define multiple LBDNs on the NIOS appliance and associate extensible attributes to them. You can configure permissions for DTC LBDNs. For more information, see License Requirements and Admin Permissions.
You can configure a load balancing method for each LBDN. You can assign multiple pools and a single load balancing method to an LBDN. You can associate or dissociate LBDNs with a zone. Note that zone transfers and incremental zone transfers ignore LBDNs. When you configure or modify DTC LBDNs, a service restart is required in order for the new configuration to take effect.
On the appliance, the DNS Traffic Control querying process generates A, AAAA, NAPTR, SRV or CNAME records for an LBDN, called LBDN records. LBDN records are served by DNS Traffic Control servers. An LBDN record must be associated with an authoritative zone. For more information about LBDN records, see Managing LBDN Records.
To configure an LBDN, complete the following:

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1. • Return these record types for the associated zones: Select any or all of the following LBDN record types: A, AAAA, NAPTR, SVR and CNAME. You must select at least one record type for the LBDN, otherwise the LBDN is disabled. The patterns and the record types can overlap with another LBDN that is linked to the same zone only if their priorities differ.
     If you select the A or AAAA record type, the LBDN returns the corresponding record and/or a CNAME record when the client queries for any record type and if the server selected by DTC has the required data.
     However, if the client queries for CNAME explicitly, ensure that you select the CNAME record type check box for the CNAME records to be returned.

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