Consider a corporate network using traditional hardware-based routing and switching. There are two geographically remote data centres used to provide resilience and load balancing; a mixture of physical and Virtual Servers (VMs) are in use at both data centres. Wireless mobile devices are used on the corporate network and uncontrolled access is allowed to their public LAN, but strict control is implemented on their internal LAN. SDN is being introduced to replace the hardware-based architecture. List and describe the SDN architecture components that facilitate VM migration from one data centre to another without transaction loss [4 marks] those capabilities to a hardware-based approach [4 marks] network resilience and explain how they work [8 marks] .Describe the network forensic capabilities of an SDN environment and compare . List and describe the SDN architectural components and protocols that provide