Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 499

What must a network architect consider for RTs when planning for a single customer full-mesh VPN in an MPLS Layer 3 network?

Answer options

• A. Each RT value must be identical to an RD value within the same VPN.
• B. RT must be globally identical within the same VPN.
• C. RT values must be different from the RD values in the same VPN.
• D. RT must be globally unique within the same VPN.

Correct answer: B

Explanation

The correct answer is B because RT values need to be consistent throughout the same VPN to ensure proper route distribution. Options A and C are incorrect as they misrepresent the relationship between RT and RD values. Option D is misleading as it suggests a global uniqueness that is not necessary within the same VPN.