Juniper Exam JN0-683 Topic 3 Question 23 Discussion

Actual exam question for Juniper's JN0-683 exam

Question #: 23
Topic #: 3

Exhibit.

You are troubleshooting a DCI connection to another data center The BGP session to the provider is established, but the session to Border-Leaf-2 is not established. Referring to the exhibit, which configuration change should be made to solve the problem?

Aset protocols bgp group overlay export loopbacks

Bdelete protocols bgp group UNDERLAY advertise-external

Cset protocols bgp group PROVIDER export LOOPBACKS

Ddelete protocols bgp group OVERLAY accept-remote-nexthop

Ddelete protocols bgp group OVERLAY accept-remote-nexthop: Removing this command will ensure that the device uses its own IP address as the next-hop in BGP advertisements, which is standard practice in many EVPN-VXLAN setups. This change should help establish the BGP session with Border-Leaf-2.
Data Center Reference:
Proper handling of BGP next-hop attributes is critical in establishing and maintaining stable BGP sessions, especially in complex multi-fabric environments like EVPN-VXLAN. Removing accept-remote-nexthop aligns with best practices in many scenarios.

Show Suggested Answer

Suggested Answer: D, D

Understanding the Configuration:

The exhibit shows a BGP configuration on a Border-Leaf device. The BGP group UNDERLAY is used for the underlay network, OVERLAY for EVPN signaling, and PROVIDER for connecting to the provider network.

The OVERLAY group has the accept-remote-nexthop statement, which is designed to accept the next-hop address learned from the remote peer as is, without modifying it.

Problem Identification:

The BGP session to Border-Leaf-2 is not established. A common issue in EVPN-VXLAN environments is related to next-hop reachability, especially when accept-remote-nexthop is configured.

In typical EVPN-VXLAN setups, the next-hop address should be reachable within the overlay network. However, the accept-remote-nexthop can cause issues if the next-hop IP address is not directly reachable or conflicts with the expected behavior in the overlay.

Corrective Action:

by Tran at Jul 09, 2025, 09:09 PM

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Levi

4 days ago

I'm with Margret on this one. Option D is the way to go. Gotta love it when the answer is right there in the explanation!

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Moon

5 days ago

Haha, this one's a no-brainer. The answer is right there in the explanation - 'Removing this command will ensure that the device uses its own IP address as the next-hop in BGP advertisements.' Simple fix!

upvoted 0 times

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