A service provider is using Cisco ME 3400 Series Ethernet Access Switches on the access edge of Metro Ethernet POP. A customer has a requirement to connect a switch to the network and requires the ability to trunk VLANs on the uplink port into the provider network. Which port type should the engineer configure on the switch to meet the requirement while maintaining a secure success edge implementation?
A. UNI
B. ENI
C. NNI
D. access
