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4A0-C01 · Question #176
4A0-C01 Question #176: Real Exam Question with Answer & Explanation
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Question
Which of the following describes what happens when facility backup fast reroute is enabled for a LSP? Choose three answers.
Options
- AEach PLR will signal a bypass tunnel that avoids the next-hop node or link.
- BWhen a failure occurs, the PLR will push an additional label onto the label stack and start forwarding traffic onto its bypass tunnel.
- CThe ingress router will include a RRO object in the path message to indicate the routers that should be PLRs and MPs along the protected path.
- 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
- EWhen the bypass tunnel is in use, the MP will include the RRO object in its PathErr message, with the local protection in use flag set to notify the ingress router
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