Nokia
4A0-103 · Question #13
An LSP path is configured as follows: - Shared-explicit reservation style - Make-before-break (MBB) enabled - 500Mpbs bandwidth reserved on a 1Gbps link With 100Mbps of unreserved bandwidth…
The correct answer is B. CSPF looks for the delta bandwidth, implementing make-before-break. See the full explanation below for the reasoning.
Question
An LSP path is configured as follows:
- Shared-explicit reservation style
- Make-before-break (MBB) enabled
- 500Mpbs bandwidth reserved on a 1Gbps link
With 100Mbps of unreserved bandwidth remaining, the operator increases the LSP-path's bandwidth reservation to 900Mbps. What happens to the existing LSP?
Options
- ACSPF looks for the delta bandwidth, taking down the first path if necessary.
- BCSPF looks for the delta bandwidth, implementing make-before-break.
- CAfter 5 failed attempts to find the bandwidth requested, the head end disables the LSP.
- DCSPF looks for the entire bandwidth requested, implementing MBB.
How the community answered
(33 responses)- A12% (4)
- B79% (26)
- C6% (2)
- D3% (1)
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