The cloud and the related technologies are growing in importance and technology. The Network Function Virtualization is a very important domain of the cloud platform. It provides network abstraction. This paper introduces the NFV and the existing implementations of the virtual middleboxes in the current scenario. The paper also proposes a new implementation of virtual middle boxes. This proposal focus on the distribution of the virtual middlebox managers to the edges of the network. The advantages of such a system is also illustrated.