Method and device for access to network function virtualization controller

An apparatus for accessing a network function virtualization controller by a network element, the apparatus comprising:

• at least one processor;
• and
• a memory, in communication with the at least one processor, wherein
• the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, to enable the at least one processor to perform following operations:
• creating at least one service unit in a region to which a network element belongs;
• associating the at least one service unit with a system virtual private cloud (VPC) corresponding to the network element;
• associating at least one availability zone comprised in the service unit with at least one device pool and at least one subnet respectively, wherein the device pool is formed by aggregating at least one virtual network element device;
• associating the at least one device pool with the at least one subnet based on an IP corresponding relationship;
• and
• accessing, by the at least one service unit, a network function virtualization controller deployed in the region to which the network element belongs.

A non-transitory computer readable storage medium, storing computer instructions, wherein the computer instructions, when executed by a computer, enable the computer to perform following operations:

• creating at least one service unit in a region to which a network element belongs;
• associating the at least one service unit with a system virtual private cloud (VPC) corresponding to the network element;
• associating at least one availability zone comprised in the service unit with at least one device pool and at least one subnet respectively, wherein the device pool is formed by aggregating at least one virtual network element device;
• associating the at least one device pool with the at least one subnet based on an IP corresponding relationship;
• and
• accessing, by the at least one service unit, a network function virtualization controller deployed in the region to which the network element belongs.