Huawei Certified ICT Expert – Routing and Switching (HCIE-RS) — Question 43

Which of the following statements is incorrect about a BGP/MPLS IP VPN?

Answer options

• A. A BGP/MPLS IP VPN consists of customer edges (CEs), provider edges (PEs), and providers (Ps). PEs and Ps are carrier devices, whereas CEs are BGP/MPLS IP VPN customer devices.
• B. Inter-site communication can be implemented through VPN. A site can only belong to only one VPN.
• C. In most cases, CEs are unaware of VPNs and do not need to support MPLS or MP-BGP.
• D. Ps only need to provide basic MPLS forwarding capabilities and do not need to maintain VPN-related information.

Correct answer: B

Explanation

Option B is incorrect because a site can actually belong to multiple VPNs. The other options accurately describe the roles and capabilities of CEs, PEs, and Ps within a BGP/MPLS IP VPN setup, highlighting the separation of responsibilities and the typical unawareness of CEs regarding VPNs.