Ethernet has now become a Metropolitan Area Network (MAN) and Wide Area Network (WAN) service. Answer the four parts below about Ethernet services. Part 1: What is the purpose of the metro Ethernet forum? Part 2: Describe the architecture of metro-Ethernet networks (MEN) and how it interfaces with other existing technologies? Part 3: What is the importance of using Ethernet virtual connections (EVCs)? Part 4: Explain how an Ethernet port can support several Ethernet virtual connections (EVCs) simultaneously.