Designing Cisco Data Center Infrastructure (DCID) — Question 63

An engineer must build a VXLAN flood-and-learn network. The customer requires the solution to be based on the IETF documented practice in RFC 7348. The solution must use broadcast, unknown unicast, and multicast (BUM) and include the efficient BUM and short BUM replication modes that use only shared trees.

Which technology meets these requirements?

Answer options

• A. MVPN
• B. PIM sparse mode
• C. PIM SSM
• D. Bidirectional PIM

Correct answer: D

Explanation

Bidirectional PIM is the correct choice as it supports efficient BUM traffic replication over shared trees, fulfilling the requirements specified in RFC 7348. The other options, while related to multicast traffic, do not inherently provide the necessary support for the specific flood-and-learn VXLAN architecture or shared tree utilization as required by the customer.