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4A0-C01 · Question #215

Click on the exhibit button below. With fast reroute enabled, and given the following: The protected LSP path is R1-R2-R3. All links are of equal cost. Which of the following statements is true?…

The correct answer is A. Router R1 is the LSP originator and is also a PLR. C. With one-to-one link or node protection, the detour LSP path is R1-R4-R5-R3. See the full explanation below for the reasoning.

Question

Click on the exhibit button below. With fast reroute enabled, and given the following:

The protected LSP path is R1-R2-R3. All links are of equal cost. Which of the following statements is true? (Choose two)

Exhibit

4A0-C01 question #215 exhibit

Options

  • ARouter R1 is the LSP originator and is also a PLR.
  • BWith one-to-one link or node protection, the detour LSP path is R1-R4-R5-R2-R3.
  • CWith one-to-one link or node protection, the detour LSP path is R1-R4-R5-R3.
  • DIf the R2-R3 link fails, router R3 becomes a PLR
  • ENone of the nodes can be protected with FRR.

How the community answered

(68 responses)
  • A
    78% (53)
  • B
    7% (5)
  • D
    3% (2)
  • E
    12% (8)

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