CCDE: Cisco Certified Design Expert (Practical) — Question 103

A legacy enterprise is using a Service Provider MPLS network to connect its head office and branches. Recently, they added a new branch to their network. Due to physical security concerns, they want to extend their existing IP CCTV network of the head office to the new branch, without any routing changes in the network. They are also under some time constraints. What is the best approach to extend the existing IP CCTV network to the new branch, without incurring any IP address changes?

Answer options

• A. GRE
• B. L2TPv3
• C. VXLAN
• D. EoMPLS

Correct answer: B

Explanation

L2TPv3 is the most suitable choice for extending the IP CCTV network because it allows for Layer 2 communication over an MPLS network without requiring routing changes or IP address modifications. The other options, such as GRE and VXLAN, may not provide the necessary Layer 2 tunneling without complicating the existing network setup, while EoMPLS is typically used for Ethernet services but may not be as efficient for this specific scenario.