Implementing and Operating Cisco Service Provider Network Core Technologies (SPCOR) — Question 276

An engineer is configuring IEEE 802. 1ad on the access port on a new Cisco router. The access port handles traffic from multiple customer VLANs, and it is expected to mark allcustomer traffic to the same VLAN without dropping any traffic. Which configuration must the engineer apply?

Answer options

• A. interface gigabitethernet0/0/1 ethernet dot1ad uni s-port
• B. interface gigabitethernet0/0/1 ethernet dot1ad uni c-port
• C. interface gigabitethernet0/0/1 ethernet dot1ad uni nni
• D. interface gigabitethernet0/0/1 encapsulation dot1q 10

Correct answer: A

Explanation

The correct configuration is option A, which designates the interface as a service port for handling multiple VLANs under IEEE 802.1ad. Options B and C are incorrect as they refer to customer port and network-to-network interface configurations, which are not suitable for this scenario. Option D uses dot1q encapsulation, which is not compatible with the requirements for handling multiple VLANs in this context.