Juniper JN0-683 Exam - Topic 3 Question 16 Discussion

Actual exam question for Juniper's JN0-683 exam

Question #: 16
Topic #: 3

Exhibit.

You are troubleshooting an IP fabric (or your data center. You notice that your traffic is not being load balanced to your spine devices from your leaf devices. Referring to the configuration shown in the exhibit, what must be configured to solve this issue?

AThe load-balance policy must be applied to the forwarding table under the routing-options hierarchy.

BThe multipast multiple -as configuration must be configured for each peer in the BGP spine group.

CThe load-balance policy must be applied as an export policy to your BGP

DThe load-balance policy must have a from statement that matches on protocol bgp.

Show Suggested Answer

Suggested Answer: B, C, E

Understanding ERB Architecture:

ERB (Edge Routed Bridging) architecture is a network design where the routing occurs at the edge (leaf devices) rather than in the spine devices. In a VXLAN overlay network with EVPN as the control plane, leaf devices typically act as both Layer 2 (L2) and Layer 3 (L3) VXLAN gateways.

Placement of VXLAN Gateways:

Option B: All leaf devices will have L2 VXLAN gateways to handle the bridging of VLAN traffic into VXLAN tunnels.

Option C: All leaf devices will also have L3 VXLAN gateways to route traffic between different VXLAN segments (VNIs) and external networks.

Option E: Spine devices in an ERB architecture generally do not function as VXLAN gateways. They primarily focus on forwarding traffic between leaf nodes and do not handle VXLAN encapsulation/decapsulation.

Conclusion:

Option B: Correct---All leaf devices will have L2 VXLAN gateways.

Option C: Correct---All leaf devices will have L3 VXLAN gateways.

Option E: Correct---Spine devices will not act as VXLAN gateways

by Lina at Jan 27, 2025, 06:11 PM

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Belen

6 months ago

Surprised this wasn't set up from the start, honestly!

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Giovanna

6 months ago

Yeah, I agree with C, seems like the most logical fix.

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Jolene

6 months ago

Wait, are we sure the multipath config is necessary?

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Regenia

7 months ago

I think option C is the right choice here!

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Julene

7 months ago

A load-balance policy is definitely needed for proper traffic distribution.

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Dorthy

7 months ago

I’m leaning towards option D because I remember something about matching protocols in load-balance policies, but I’m not completely confident.

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Deane

7 months ago

I feel like the answer might be related to BGP configurations, especially since we talked about multipath settings recently.

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Peggy

7 months ago

I remember a practice question where we had to apply a load-balance policy, but I can't recall if it was under routing-options or as an export policy.

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Ryann

8 months ago

I think we discussed something about load-balancing policies in our last study group, but I'm not sure if it was specifically about the forwarding table.

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Lauran

8 months ago

I'm pretty confident that the correct answer is option C. The load-balance policy needs to be applied as an export policy to BGP to solve the issue with the traffic not being load balanced to the spine devices.

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Lashon

8 months ago

Okay, I think I've got this. The key is to apply the load-balance policy as an export policy to BGP. That should do the trick.

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Leila

8 months ago

Hmm, I'm a bit confused by the different options here. I'll need to make sure I understand the requirements for load balancing in an IP fabric before I can decide on the best approach.

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Vashti

8 months ago

This looks like a tricky one. I'll need to carefully review the configuration details and think through the potential solutions.

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Rashad

1 year ago

If all else fails, I'll just start flipping coins. The traffic has to go somewhere, right?

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Marsha

1 year ago

Samantha

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Carman

11 months ago

D) The load-balance policy must have a from statement that matches on protocol bgp.

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Leontine

11 months ago

C) The load-balance policy must be applied as an export policy to your BGP

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Annmarie

11 months ago

B) The multipast multiple -as configuration must be configured for each peer in the BGP spine group.

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Henriette

11 months ago

A) The load-balance policy must be applied to the forwarding table under the routing-options hierarchy.

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Tiffiny

1 year ago

I bet the solution involves some obscure BGP voodoo. Time to dust off the networking textbooks!

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Darnell

1 year ago

A load-balance policy applied to the forwarding table? That's got to be the answer. Easy peasy!

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Elbert

11 months ago

Definitely, it seems like the most logical solution to the issue.

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Elly

12 months ago

Yeah, that makes sense. It should help with the traffic not being load balanced.

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Coral

12 months ago

I think the load-balance policy must be applied to the forwarding table.

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Eleonore

1 year ago

Option D looks promising, but I'm not sure if that's the whole story. Load balancing can be a real headache.

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Scarlet

12 months ago

Don't forget to test your changes after making any configuration adjustments.

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Herminia

12 months ago

I agree, troubleshooting load balancing can be tricky. Double check everything.

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Dorothy

1 year ago

Option D is a good start, but make sure to check all configurations thoroughly.

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Catrice

1 year ago

Hmm, this seems like a tricky one. I'll have to think it through carefully.

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Carline

12 months ago

D) The load-balance policy must have a from statement that matches on protocol bgp.

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Cheryl

1 year ago

C) The load-balance policy must be applied as an export policy to your BGP.

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Alisha

1 year ago

B) The multipast multiple -as configuration must be configured for each peer in the BGP spine group.

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Truman

1 year ago

A) The load-balance policy must be applied to the forwarding table under the routing-options hierarchy.

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Gabriele

1 year ago

Hmm, that makes sense too. Let's review the exhibit again to be sure.

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Gail

1 year ago

I disagree, I believe the answer is D. The load-balance policy must have a from statement that matches on protocol BGP.

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Gabriele

1 year ago

I think the answer is C. The load-balance policy must be applied as an export policy to BGP.

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