Dell EMC D-SNC-DY-00 Exam - Topic 3 Question 11 Discussion

Actual exam question for Dell EMC's D-SNC-DY-00 exam

Question #: 11
Topic #: 3

Refer to the exhibit.

Eth 1/1 of SONiC-1 and Eth1/56 of SONiC-2 should be a routed link connecting the two Enterprise SONiC switches. No traffic is passing between them.

What is the cause of the failure?

AAn incorrect IPv6 address type was used for interface Eth1/56 of SONiC-2.

BA spanning-tree is blocking the routed link.

CIPv6 is not enabled on interface Eth 1/1 of SONiC-1.

DThere is a cable that is unplugged between SONiC-1 and SONiC-2.

Show Suggested Answer

Suggested Answer: A

From the exhibit, it is evident that Eth1/56 on SONiC-2 is assigned a link-local IPv6 address (fe80::e7d:8aff:fecb

/64). Link-local addresses are not routable beyond the local network segment, which means they cannot be used to route traffic between SONiC-1 and SONiC-2. For routed links, global unicast addresses must be used.

Dell Technologies SONiC documentation

IPv6 Addressing Guide

by Asuncion at Sep 13, 2024, 06:54 AM

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Royal

6 months ago

I doubt it's an IPv6 address type issue, seems unlikely.

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Linn

6 months ago

Wait, are we sure the cable is even plugged in?

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Owen

6 months ago

Could be an IPv6 issue too, like option C.

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Justine

7 months ago

I think it's more likely a spanning-tree problem, option B.

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Josphine

7 months ago

Sounds like a cable issue, maybe option D?

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Mabel

7 months ago

What if the cable is just unplugged? I think that could be a simple fix, but I can't recall if we had a question like that before.

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Rosann

7 months ago

I feel like we covered something about needing to enable IPv6 on both interfaces. Is that what this question is hinting at?

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Teri

7 months ago

I'm not entirely sure, but I think we practiced a question where an incorrect IPv6 address caused connectivity issues.

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Lai

8 months ago

I remember we discussed how spanning-tree can block links if there's a loop. Could that be the issue here?

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Blondell

8 months ago

I think I've got it! The issue is likely that IPv6 is not enabled on the interface of SONiC-1. That would explain why the routed link is not working. I'll select option C and move on to the next question.

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Tracie

8 months ago

Hmm, I'm a bit confused. The question mentions that it's a routed link, so I don't think a spanning-tree issue would be the cause. But I'll make sure to read through the details carefully before answering.

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Pilar

8 months ago

Alright, let's go through the options. Option A seems plausible - an incorrect IPv6 address type could definitely cause the link to fail. But I'll need to double-check the other options as well.

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Dean

8 months ago

Hmm, this looks like a tricky one. I'll need to carefully review the information provided and think through the possible causes.

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Dong

8 months ago

Okay, let's see. The question says the interfaces should be a routed link, but no traffic is passing between them. That suggests a configuration issue, but I'm not sure which one.

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Laticia

8 months ago

This looks like a tricky migration scenario. I'll need to carefully consider the requirements to avoid any downtime or data loss.

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Viki

2 years ago

A missing cable, eh? That's like trying to play Tetris without any blocks - good luck with that one!

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Leslee

2 years ago

IPv6, huh? That's like the elusive Loch Ness monster of networking - you never know when it's gonna pop up and cause problems. Better check those settings!

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