MetroEthernet was first used outside of the LAN in metropolitan areas, called MANs (Metropolitan Area Network). We use fiber cabling because of the support for longer distances.
There are several aspects of MetroEthernet that you can find out more about at the following notes:
- MetroEthernet - Virtual Private LAN service
- MetroEthernet - Virtual Private Wire Service
- MetroEthernet - VLAN design considerations