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You are implementing a design where the campus network should be in an isolated spanning tree topology from the data centre network. The core switches are connected by a single Layer-2 interface carrying multiple VLANs.
When you examine the switches, you discover that the campus core sees the data centre core as the root bridge.
What configuration can you apply to the campus-to-data centre core link to resolve the issue?
Suggested Answer: A
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24 comments · newest first
MA
Mari
9 months ago
Wait, can BPDU guard really fix this? Sounds off.
IR
Irma
10 months ago
Totally agree with root guard, makes sense!
MA
Marquetta
10 months ago
I think BPDU filter might be better.
TO
Tori
10 months ago
Root guard is the way to go!
LE
Leah
11 months ago
Admin edge? Never heard of that one.
PO
Portia
11 months ago
BPDU guard seems like it could help, but I thought it was more about protecting against loops rather than isolating the topology.
RO
Rodolfo
11 months ago
Admin edge sounds familiar, but I can't recall its exact function in this context. I feel like it might not be the best option.
HA
Harley
12 months ago
I'm not entirely sure, but I think BPDU filtering could be risky since it might block all BPDUs. I need to double-check that.
AN
Anabel
12 months ago
I remember studying about root guards and how they can prevent a non-root bridge from becoming the root. That might be the right choice here.
AL
Alpha
12 months ago
This is a good test of our spanning tree knowledge. I'm pretty confident BPDU guard is the right choice to resolve the root bridge issue on the campus-to-data center link.
CA
Carole
1 year ago
I'm not totally sure about this one. Admin edge could also be an option to isolate the campus network, right? I'll have to think it through a bit more.
TO
Tom
1 year ago
Okay, let me think this through. Since the campus core sees the data center core as the root, we need to prevent that from happening. I'm leaning towards BPDU filter as the best solution.
RE
Rebecka
1 year ago
Hmm, I'm a bit confused. Wouldn't root guard be a better option to prevent the data center core from becoming the root bridge?
IR
Ira
1 year ago
This seems like a pretty straightforward spanning tree issue. I think BPDU guard is the way to go here.
PR
Precious
1 year ago
BPDU filter? Nah, that's just going to disable the entire link. We need something more targeted. I'm going with BPDU guard.
AU
Audry
1 year ago
I agree with Malinda, Root guard will help in resolving the issue.
BO
Bok
1 year ago
Hmm, root guard seems like the obvious choice. It'll force the campus core to be the root bridge, right? Simple and effective.
GO
Goldie
10 months ago
I doubt BPDU filter is the best option here.
JO
Jolene
10 months ago
But what about BPDU filter? Could that work too?
OL
Oliva
10 months ago
I think root guard is definitely the way to go.
TE
Teri
11 months ago
Admin edge might be useful, but root guard seems more reliable.
MA
Malinda
1 year ago
I think we should apply Root guard to the link.
MA
Magda
1 year ago
I think BPDU guard is the way to go here. That'll prevent the data center core from becoming the root bridge and messing up the campus network topology.
HA
Hannah
1 year ago
A) Root guard