Address obtaining method and an address obtaining apparatus

An address obtaining method, comprising:

• obtaining, by a third network device, an identifier of a first application from a terminal device, wherein the identifier of the first application indicates a request for obtaining an address of an instance of the first application;
• sending, by the third network device, a first message to a first network device, wherein the first message comprises the identifier of the first application, and the first message is useable to request the address of the instance of the first application;
• and
• receiving, by the third network device, the address of the instance of the first application from the first network device, and sending the address of the instance of the first application to the terminal device.

An apparatus, comprising:

• at least one processor;
• and
• a non-transitory memory coupled to the at least one processor, and configured to store non-transitory instructions, and in response to being executed by the at least one processor, cause the apparatus to:
• obtain registration information, wherein the registration information indicates that a second network device is configured to provide an address of an instance of at least one application;
• receive a first message from a third network device, wherein the first message comprises an identifier of a first application, and the first message is useable to request an address of an instance of the first application;
• send a second message to the second network device based on the registration information and the identifier of the first application, wherein the second message comprises the identifier of the first application, and the second message is useable to request the address of the instance of the first application;
• receive the address of the instance of the first application from the second network device;
• and
• send the address of the instance of the first application to the third network device.

An apparatus, comprising:

• at least one processor;
• and a non-transitory memory coupled to the at least one processor, and configured to store non-transitory instructions, and in response to being executed by the at least one processor, cause the apparatus to:
• obtain an identifier of a first application from a terminal device, wherein the identifier of the first application indicates a request for obtaining an address of an instance of the first application;
• send a first message to a first network device, wherein the first message comprises the identifier of the first application, and the first message is useable to request the address of the instance of the first application;
• and
• receive the address of the instance of the first application from the first network device, and send the address of the instance of the first application to the terminal device.