QuestionQ822

IP Connectivity

Question Image

Refer to the exhibit. After configuring a new static route on the CPE, the engineer entered this series of commands to verify that the new configuration is operating normally.

When is the static default route installed into the routing table?

  • A when a route to 203.0.113.1 is learned via BGP
  • B when 203.0.113.1 is no longer reachable as a next hop
  • C when the default route learned over external BGP becomes invalid
  • D when the default route learned over external BGP changes its next hop
Explanation

The configured route is a floating static default route because it uses administrative distance 21. An external BGP default route has administrative distance 20, so the eBGP route is preferred while it is valid. Since the next hop 203.0.113.1 is directly connected and reachable, the static default remains a backup and is installed only if the eBGP-learned default route is no longer valid.

Learn more

Community Discussion

No comments yet. Be the first to start the discussion!