Cisco Exam 300-610 Topic 4 Question 84 Discussion

Actual exam question for Cisco's 300-610 exam

Question #: 84
Topic #: 4

A Cisco engineer is configuring MPLS VPN BGP at a customer site that is connected to the provider site by more than one path MPLS VPN BGP Local Convergence link protection is enabled. After the engineer installs the main forwarding path and the redundant backup path within the BGP, they assign a unique route distinguisher to each VRF table on all PE devices that serve as a backup to the link. What is a prerequisite for this local convergence to work?

AInterautonomous system option A (back-to-back VRF) is active.

BBGP must support lossless switchover between operational paths

CIP/GRE is enabled.

DThe system is performing a PE-CE link protection on both ends

Show Suggested Answer

Suggested Answer: D

by Arlette at Apr 12, 2024, 05:35 PM

Limited Time Offer

25%

Off

Get Premium 300-610 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Broderick

6 months ago

I believe the answer is B) BGP must support lossless switchover between operational paths. With multiple paths in MPLS VPN BGP, this support is essential for seamless failover.

upvoted 0 times

...

Lavonne

6 months ago

I'm not sure, Maybe having PE-CE link protection on both ends could be another requirement for local convergence.

upvoted 0 times

...

Xenia

6 months ago

But what about PE-CE link protection? Do we need that as a prerequisite for local convergence to work?

upvoted 0 times

...

Luisa

6 months ago

I agree with you, Without support for lossless switchover in BGP, local convergence won't be effective.

upvoted 0 times

...

Lavonne

6 months ago

I think the prerequisite for local convergence to work is BGP must support lossless switchover between operational paths.

upvoted 0 times

...

Lera

6 months ago

I think it could also be option D, because PE-CE link protection is crucial for redundancy

upvoted 0 times

...

Jestine

6 months ago

Hmm, that makes sense. Lossless switchover is important for backup paths

upvoted 0 times

...

Wava

7 months ago

I disagree, I believe it's actually option B because BGP needs to support lossless switchover

upvoted 0 times

...

Jestine

7 months ago

I think the prerequisite for local convergence to work is option A

upvoted 0 times

...

Melina

8 months ago

You know, I'm just wondering why they're asking about this specific scenario. Is this a trick question or something?

upvoted 0 times

...

Gracia

8 months ago

Ah, I see what you mean. And option D, the PE-CE link protection on both ends, doesn't seem to be a prerequisite here, since the question is focused on the local convergence within the provider's network.

upvoted 0 times

Reena

7 months ago

A: Right, that's why it's important for MPLS VPN BGP configurations.

upvoted 0 times

...

Aleshia

8 months ago

C: So, the key is ensuring the BGP protocol can handle the switch seamlessly.

upvoted 0 times

...

Francesco

8 months ago

B: Exactly, the ability to switch paths without loss is crucial for local convergence.

upvoted 0 times

...

Coleen

8 months ago

A: Yes, that's correct. The focus is on the BGP support for switchover.

upvoted 0 times

...

Josue

8 months ago

C: IP/GRE is enabled.

upvoted 0 times

...

Hershel

8 months ago

B: Interautonomous system option A (back-to-back VRF) is active.

upvoted 0 times

...

Rosendo

8 months ago

A: BGP must support lossless switchover between operational paths.

upvoted 0 times

...

Izetta

8 months ago

Haha, yeah, that would be a pretty strange prerequisite. Alright, I think we've got a good handle on this. I'm going to go with option B as the answer.

upvoted 0 times

...

Viva

8 months ago

Ah, good point. The question does specifically mention that local convergence is enabled, so that must be a prerequisite.

upvoted 0 times

...

Alease

8 months ago

I'm not convinced that's the only requirement. Doesn't the system also need to be performing PE-CE link protection on both ends? That's what option D says.

upvoted 0 times

...