Huawei Exam H31-161 Topic 1 Question 80 Discussion

Actual exam question for Huawei's H31-161 exam

Question #: 80
Topic #: 1

BFD for RSVP is a mechanism that uses BFD to check the connectivity of RSVP neighbors. As shown in the figure, TE FRR node protection is deployed to protect a node, the blue path is the primary LSP (RTA -> RTB -> RTC -> RTD -> RTE) and the red one is the bypass LSP (RTB -> RTF -> RTD). Which of the following statements about BFD for RSVP are true?

ATE FRR will be triggered only when the link between RTB (acting as the PLR) and RTC (the node under protection) is faulty or RTC is faulty but will not be triggered when the link between RTC and RTD (acting as the MP) is faulty. This problem can be solved by establishing a BFD session between RTB and RTD. In this case, faults may be reported falsely or be missed.

BOnly RSVP HELLO needs to be enabled if RSVP GR instead of TE FRR is deployed on a network.

CBFD for RSVP needs to be enabled only on RTB if you expect to set up a BFD for RSVP session on RTB to check the connectivity between RTB and RTC.

DThe BFD session triggered by RSVP is for the exclusive use of RSVP.

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Suggested Answer: A, B

by Elke at Jan 28, 2024, 03:27 PM

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