Troubleshooting Cisco Data Center Infrastructure (DCIT) — Question 43

An engineer is implementing a new BGP peering in their new data center. The engineer set up the BGP session that peers with the remote end. As soon as the BGP peers attempt to exchange routing prefixes, one of the BGP peers drops the connection. After reviewing the configuration, the engineer reviews the logging messages. The engineer discovers that the router is missing keepalives from the remote end and terminates the session. Which action resolves the issue?

Answer options

• A. Set the bgp transport path-mtu-discovery attribute on both peers
• B. Set the higher values for the BGP keepalive and hold-down timers on both peers
• C. Configure the matching BGP AS numbers between the peers
• D. Configure the matching BGP passwords between the peers

Correct answer: B

Explanation

The correct answer is B because increasing the keepalive and hold-down timers allows more time for keepalive messages to be sent and received, which can help maintain the BGP session. Option A does not address the keepalive issue directly, option C is irrelevant as AS number mismatches would prevent the BGP session from forming initially, and option D is also not related to the keepalive mechanism.