Nowadays, the continuous progression of the Network Function Virtualization(NFV) transformation is due to considering it as the platform for the 5G. The NFV based on SDN can extend the programmability and flexibility features of advanced network functions. Many of these network functions, however, need concrete state information to effectively process network flows. In this work, we have proposed a solution for sharing the states between different Virtual Network Functions(VNF) with the help of the data-plane programmable switches, while the generality of the proposed solution makes it applicable on the vanilla SDN switches as well. In the second chapter of this work, we briefly recalled the Software-Defined Networking and its most successful protocol.