A method, device and computer readable medium for delivering packets. The method comprises in response to receipt of, at a first VNFC, a data-plane packet for a terminal device, performing a predetermined transport processing of the packet to obtain a processed packet (610); the packet including a network address of the first VNFC as a destination address; forwarding the processed packet from the first VNFC to a virtual switch (620); and delivering the processed packet from the virtual switch to a second VNFC based on a first mapping between an identity of the terminal device and an identity of the second VNFC (630); the second VNFC separated from the first VNFC, the second VNFC serving the terminal device and including at least one first data-plane application.