MPLS Protection and Restoration Actions After the Failure Quiz

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1. What is the default retry-timer?
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After getting the PATH ERR message, Head-End starts the “Global Revertive” procedure. It starts a “retry-timer” and after this time expire, it searches a better Primary LSP and starts a CSPF calculation.
- 10 seconds
- 30 seconds
- 5 seconds
- 15 seconds
2. What is the minimum value for resignal-timer?
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By default the calculated LSP can be active forever. But this is configurable by “resignal-timer”. This is disabled by default.
- 30 minutes
- 60 minutes
- 10 minutes
- 20 minutes
3. Fill in the blanks.
1

After detecting the failure in an MPLS network, in Fast Reroute (FRR) mechanism, PLR switches the traffic to the

1. What is the default retry-timer?