The disclosed invention involves a method and systems of autonomic virtual network, which relates to three basic inventions in the area of autonomic computing: (1) systems and methods of multi-loop autonomic manager, preemptive contact point, i.e. sensors and effectors, and software-defined hardware resource, or abstraction and virtualization of the hardware functions; (2) service-delivery virtual network in the area of distributed network, and application assurance systems and methods; and (3) integration of these two fields of inventions, namely autonomic managed virtual network, such that the management of virtual networks which provide service delivery, is able to achieve n-tier architecture system and method ACRA.