Discuss Nokia 4A0-103 Exam Topic 4 Question 2

Assume that, on the Alcatel-Lucent 7750 SR, an LSP is configured with one-to-one FRR and node protection. Which of the following statements are FALSE? (Choose two)

AEach PLR signals a detour LSP that avoids the downstream node. If the downstream node cannot be avoided, a detour LSP that avoids the downstream link is signaled.

BThe detour LSP can take one or more hops before merging back on the protected LSP.

CThe merge point of the protected LSP must be the next-next-hop node

DThe ingress router will set the local protection desired flag in the session attribute object of the path message to inform all routers along the protected LSP path to establish detour LSPs.

EThe label recording desired flag must be set in the session attribute object in order for the PLR to know what label to swap when using the detour LSP.

Suggested Answer: C, E

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11 comments · newest first

Julene 12 months ago

E is correct, label recording is crucial for PLR.

Dick 12 months ago

B sounds off, detour LSPs shouldn't take multiple hops.

Nobuko 1 year ago

Wait, isn't D misleading? The ingress router doesn't always set that flag.

Stefany 1 year ago

Totally agree, C is definitely false.

Cecil 1 year ago

A is true, detour LSPs avoid the downstream node.

Lilli 1 year ago

Option D seems correct to me; I remember the ingress router needing to set that flag. But I’m not sure about E and the label recording flag.

Merlyn 1 year ago

I recall that the detour LSP can take multiple hops, so option B might be true. But I’m not confident about the specifics.

Nana 1 year ago

I'm not entirely sure, but I feel like option A could be misleading. I practiced a question where the detour LSP had to avoid both the node and the link.

Claudia 1 year ago

I think option C sounds a bit off. I remember something about the merge point not necessarily being the next-next-hop.

Precious 1 year ago

I'm a bit confused on this one. I know the MC is used to manage Splunk, but I'm not sure of the specifics of how it identifies the server roles. I'll have to review my notes and see if I can figure this out.

Leoma 1 year ago

I've got a strategy - I'll carefully read through each option and eliminate the ones that don't seem to meet the requirements.

Nokia 4A0-103 Exam - Topic 4 Question 2 Discussion