300-510 SPRI: Implementing Cisco Service Provider Advanced Routing SolutionsDemo

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QuestionQ133

MPLS and Segment Routing

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Refer to the exhibit. A network operator is troubleshooting TE tunnels and discovers that soft preemption is not operating as desired. Where should soft preemption be applied to resolve the issue?

  • A under the tunnel-te1 interface on PE1
  • B on the tail-end device for tunnel-te1 192.168.0.7
  • C under the interface Loopback0 necessary for this deployment type
  • D explicitly for tunnel-te 1 under the Cisco MPLS TE configuration mode after the timeout setting
Explanation

MPLS TE soft preemption is enabled both at the head-end node and explicitly on each affected tunnel. The global mpls traffic-eng soft-preemption timeout 10 configuration enables the node feature and defines its timer, but tunnel-te1 still requires soft-preemption under interface tunnel-te 1. This causes the tunnel’s RSVP-TE LSPs to signal the soft-preemption-desired property.

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