Juniper Exam JN0-683 Topic 2 Question 17 Discussion

Actual exam question for Juniper's JN0-683 exam

Question #: 17
Topic #: 2

Exhibit.

Referring to the exhibit, Host1 (10.1.1.1) is failing to communicate with Host2 (10.1.2.1) in a data center that uses an ERB architecture. What do you determine from the output?

AThe traffic is failing because load balancing is not configured correctly.

BThe traffic is entering the VXLAN tunnel.

CHost1 and Host2 are directly connected to leaf1.

DThe irb.20 interface is not configured on leaf1.

Show Suggested Answer

Suggested Answer: B

Understanding the Problem:

Host1 (10.1.1.1) is failing to communicate with Host2 (10.1.2.1) within an EVPN-VXLAN environment using ERB architecture.

Analysis of the Exhibit:

The provided output includes information from the show route forwarding-table matching command for IP 10.1.2.1. The next hop is shown as vtep.32769, which indicates that the traffic destined for 10.1.2.1 is being forwarded into the VXLAN tunnel with the correct VTEP (VXLAN Tunnel Endpoint).

Conclusion:

Option B: Correct---The traffic from Host1 is entering the VXLAN tunnel, as evidenced by the next hop pointing to a VTEP. However, the issue could lie elsewhere, possibly with the remote VTEP, routing configurations, or the receiving leaf/spine devices.

by Yvonne at Feb 09, 2025, 08:01 PM

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2 months ago

Hmm, looks like the issue is with the irb.20 interface not being configured on leaf1. I'm guessing that's the key to getting Host1 and Host2 to communicate properly.

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Malinda

24 days ago

User2: Maybe configuring that interface will fix the communication issue between Host1 and Host2.

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Alex

29 days ago

User1: I agree, the irb.20 interface on leaf1 seems to be the problem.

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