Domain name system determination

An apparatus of a first network function, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the apparatus to:
• transmit first instructions to a second network function, wherein the first instructions indicate forwarding domain name system requests from an application in a first device to the first network function;
• receive, from the second network function, a first domain name system request received from an application in the first device based on the first instructions, wherein the domain name system request comprises a fully qualified domain name;
• determine to use network analytics from a third network function to determine an application server for the fully qualified domain name;
• transmit a first request to the third network function, wherein the first request comprises:
• a request for data network performance analytics;
• the fully qualified domain name;
• a device identity of the first device;
• a current location of the first device;
• or a combination thereof;
• receive a response to the first request, wherein the response comprises a list of application server addresses and associated performance information;
• select the application server from the list of application server addresses based on the associated performance information;
• determine second instructions for the second network function, wherein the second instructions indicate to construct a domain name system response to reply to the first domain name system request, and the second instructions indicate the selected application server;
• and
• transmit the second instructions to the second network function, wherein the second instructions comprise an indication to create the domain name system response indicating the selected application server.

An apparatus of a second network function, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the apparatus to:
• receive a domain name system request from an application of first device;
• determine to forward the request to a first network function;
• receive instructions from a first network function, and the instructions comprise an indication to create a domain name system response indicating a selected application server;
• create the domain name system response;
• and
• transmit the domain name system response to the first device.

A method of performing a second network function, the method comprising:

• receiving a domain name system request from an application of first device;
• determining to forward the request to a first network function;
• receiving instructions from a first network function, wherein the instructions comprise an indication to create a domain name system response indicating a selected application server;
• creating the domain name system response;
• and
• transmitting the domain name system response to the first device.