Huawei Certified ICT Expert – Routing and Switching (HCIE-RS) — Question 41

In the inter-AS MPLS L3VPN Option B solution, the RT filtering function must be disabled on ASBRs. Otherwise, VPNv4 routes cannot be transmitted.

Answer options

• A. True
• B. False

Correct answer: B

Explanation

The correct answer is B because RT filtering must be disabled on ASBRs to allow proper transmission of VPNv4 routes. If RT filtering were enabled, it would block the necessary route advertisements, thus preventing the VPNv4 routes from being transmitted as required.