350-501 · Question #533
350-501 Question #533: Real Exam Question with Answer & Explanation
The correct answer is B: Implement LDP session protection with a duration of 600 seconds.. LDP session protection helps prevent session teardown during interface flaps by maintaining the session for a specified hold time (in this case, 600 seconds or 10 minutes). This retains label bindings in the LIB and avoids reconvergence.
Question
Refer to the exhibit. All edge routers are fully meshed via the iBGP and IS-IS routing protocols, and LDP is used for label distribution The network engineer must protect the TE tunnels and MPLS network from interface flaps and retain label information in the LIB cache for 10 minutes. Which action completes the implementation?
Options
- AEnable signaling synchronization for MPLS traffic engineering with the timeout set to 600
- BImplement LDP session protection with a duration of 600 seconds.
- CEnable the MPLS TTL signaling expiration timer with the timeout set to 10 minutes.
- DImplement MPLS label protection with a duration of 10 minutes.
Explanation
LDP session protection helps prevent session teardown during interface flaps by maintaining the session for a specified hold time (in this case, 600 seconds or 10 minutes). This retains label bindings in the LIB and avoids reconvergence.
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