JNCIS-ENT: Juniper Networks Certified Specialist – Enterprise Routing and Switching (2025) — Question 96

Your GRE tunnel is not transitioning to the Up status.

What would be the first step in troubleshooting the problem?

Answer options

• A. Verify tunnel endpoint reachability.
• B. Verify that the status of the management interface is up.
• C. Verify the status of the management routing instance.
• D. Verify that the routing instance for GRE tunnels is created.

Correct answer: A

Explanation

The first step in troubleshooting a GRE tunnel not transitioning to the Up status is to verify tunnel endpoint reachability. If the endpoints are not reachable, the tunnel cannot establish a connection. The other options, while important, address subsequent issues that may arise after confirming endpoint connectivity.