Juniper JN0-683 Exam - Topic 9 Question 11 Discussion

Actual exam question for Juniper's JN0-683 exam

Question #: 11
Topic #: 9

You are deploying an EVPN-VXLAN overlay. You must ensure that Layer 3 routing happens on the spine devices. In this scenario, which deployment architecture should you use?

AERB

BCRB

Cbridged overlay

Ddistributed symmetric routing

Show Suggested Answer

Suggested Answer: D

Requirements for AI Workloads:

The scenario requires a network that supports at least 400 Gbps Ethernet and does not require Layer 2 VLANs. This setup is well-suited for a pure Layer 3 network, which can efficiently route traffic between devices without the overhead or complexity of maintaining Layer 2 domains.

Choosing the Right Network Architecture:

Option D: An IP fabric using EBGP (External BGP) is ideal for this scenario. In a typical IP fabric, EBGP is used to handle routing between spine and leaf switches, creating a scalable and efficient network. Since there is no need for Layer 2 VLANs, the pure IP fabric design with EBGP provides a straightforward and effective solution.

Options A, B, and C involve more complex architectures (like VXLAN or EVPN), which are unnecessary when there's no requirement for Layer 2 overlays or VLANs.

Conclusion:

Option D: Correct---An IP fabric with EBGP is the most suitable and straightforward architecture for a network that needs to support high-speed AI workloads without Layer 2 VLANs.

by Stefan at Sep 14, 2024, 08:21 PM

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Kathrine

6 months ago

Agreed, D is the most efficient for this architecture!

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Lashanda

6 months ago

A (ERB) is outdated, I wouldn't recommend it for this setup.

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Jettie

6 months ago

Wait, so Layer 3 routing on spines? Isn't that a bit unconventional?

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Juan

7 months ago

I think B (CRB) could work too, but not sure if it's the best choice.

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Wenona

7 months ago

Definitely going with D, distributed symmetric routing is the way to go!

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Anglea

7 months ago

I keep mixing up the terms, but I think bridged overlay is more about Layer 2, so it might not be the right answer here.

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Helene

7 months ago

I practiced a question like this, and I feel like ERB could be the right choice, but I’m not confident.

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Rodolfo

7 months ago

I'm not entirely sure, but I remember something about CRB being used for routing in similar scenarios.

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Graciela

8 months ago

I think the answer might be D, distributed symmetric routing, since it allows for Layer 3 routing on the spine.

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Temeka

8 months ago

I'm pretty confident the answer is CRB. That architecture is designed specifically to handle Layer 3 routing at the spine layer, which is exactly what the question is asking for.

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Willis

8 months ago

Distributed symmetric routing sounds like the way to go. That way the routing intelligence is spread out across the spines, which should provide better scalability and redundancy.

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Rebbecca

8 months ago

Hmm, I'm a bit confused on the differences between those two options. I'll need to review the details of each deployment architecture to make sure I understand the implications.

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Gerald

8 months ago

I think the key here is ensuring Layer 3 routing happens on the spine devices. That narrows it down to either CRB or distributed symmetric routing.

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Bok

8 months ago

This seems like a tricky one. I'm not sure if activating unlimited mode or reducing the Auto Scaling group size is the right approach here.

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Marti

1 year ago

D all the way! Gotta keep that Layer 3 action on the spine. Maybe I'll throw in a few dad jokes while I'm at it. Did you hear about the claustrophobic astronaut? He just needed a little space!

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