DNS Transaction Timeout

To provide resiliency during DNS server failover, you can now enable a transaction timeout for DNS servers. If you have endpoints that are only capable of being configured with a single DNS server, this can allow DNS queries to be sent to the next configured server—even when contacting the Oracle® Enterprise Session Border Controller’s DNS ALG on a single IP address. So when the first server in the list times out, the request is sent to the next server in the list.

The Oracle® Enterprise Session Border Controller uses the transaction timeout value set in the dns-server-attributes configuration (part of the dns-config).