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Cisco 300-510 Exam - Topic 8 Question 117 Discussion

Posted by Lanie on Nov 24, 2025 at 06:46 AM

Refer to the exhibit.

Router 1. Router 2. and Router 3 are co-located in an onsite data center of an office, but Router 4. Router 5. and Router 6 are installed in another data center 'eral miles away. A network engineer is troubleshooting an RSVP-TE issue on the network. On most of the devices, the engineer can move all LSPs away from a selected dace and take it down for maintenance without interrupting traffic. However, when an interface on Router 3 is taken down, traffic on the network is disrupted. What must the engineer enable to resolve the issue on Router 3?

Suggested Answer: C

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31 comments · newest first
GL
Glenn 6 months ago
I doubt D) would work. NSR or FRR are more reliable options.
TA
Tanja 6 months ago
What about D) Soft-disperse? Could that help with the issue?
DE
Deangelo 6 months ago
I agree with Elliott. NSR is essential for maintaining sessions.
MA
Margurite 6 months ago
C) soft-preemption feature seems interesting, but not sure it fits here.
BL
Blair 7 months ago
I feel like A) FRR is the right choice. Fast reroute is crucial.
EL
Elliott 7 months ago
I think it's B) NSR. It helps with traffic continuity.
GA
Galen 7 months ago
I agree, FRR seems like the most logical choice to avoid disruption.
HE
Hermila 7 months ago
Definitely surprised that Router 3 is causing issues while others are fine.
CA
Carla 7 months ago
Wait, is soft-preemption even relevant in this scenario?
ST
Stevie 8 months ago
I think NSR would actually be the better option here.
CA
Cassie 8 months ago
Soft-preemption? Is that like when you gently ask the router to step aside for a bit? I'll stick with the good old NSR.
CO
Cornell 8 months ago
NSR, huh? I guess that's the "non-stop routing" option. Sounds like the way to go to keep the network up and running.
DE
Devorah 8 months ago
D) Soft-disperse? Really? That just sounds made up. I'm going with B) NSR.
OD
Odette 9 months ago
C) soft-preemption feature sounds interesting, but I'm not convinced that's the right answer here.
LA
Latrice 9 months ago
Hmm, I'm not sure. Wouldn't FRR (Fast Reroute) be a better option to avoid traffic disruption?
CL
Claudio 9 months ago
I feel like soft-disperse is the least likely option here, but I can't remember the specifics. I should have reviewed that section more!
DO
Dominga 9 months ago
Soft-preemption sounds familiar, but I can't quite recall how it applies in this scenario. Wasn't there a practice question about it?
GE
Georgeanna 9 months ago
I think it might be NSR, but I'm not entirely sure. I recall it being related to maintaining state during failovers.
HA
Halina 9 months ago
This is a good RSVP-TE question that tests our understanding of different features and how they can be used to maintain network availability. I think I have a solid strategy to work through this step-by-step.
LE
Lemuel 10 months ago
I'm a bit confused by the soft-disperse option. I'll need to research that one more to understand how it might apply here. The other choices seem more straightforward.
DE
Denny 10 months ago
Okay, I see the key is that the other routers can move LSPs without disrupting traffic, but Router 3 can't. I'm leaning towards the soft-preemption feature as the solution to avoid that disruption.
QU
Quentin 10 months ago
I remember studying about fast reroute (FRR) and how it helps in maintaining traffic during failures. Could that be the answer here?
TR
Tricia 10 months ago
Sounds like they need to enable FRR for fast reroute.
JA
Janella 10 months ago
I think the answer is B) NSR. That should prevent traffic disruption when an interface on Router 3 is taken down.
LA
Lawrence 11 months ago
Hmm, the issue seems to be related to Router 3 and disrupting traffic when an interface is taken down. I'm thinking FRR or NSR might be the answer, but I'll need to double-check the details.
AN
Anna 11 months ago
This looks like a tricky RSVP-TE question. I'll need to carefully review the exhibit and options to determine the best approach.
SH
Shasta 5 months ago
↳ replying to Anna
I wonder if Soft-disperse could play a role here.
YA
Yasuko 6 months ago
↳ replying to Anna
I’m leaning towards NSR. It could help with the disruption.
ED
Edelmira 6 months ago
↳ replying to Anna
This is definitely tricky! I think FRR might be the key.
SK
Skye 11 months ago
↳ replying to Anna
Soft-preemption feature sounds interesting too.
NO
Norah 11 months ago
↳ replying to Anna
I’ll have to analyze the exhibit closely before deciding.
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