4A0-116: Nokia Segment Routing ExamDemo

By Nokia · Question Mode

QuestionQ15

Introduction to segment routing

Which of the following statements regarding Segment Routing is FALSE?

  • A No path signaling is required to establish an SR tunnel.
  • B Intermediate routers do not maintain any tunnel information.
  • C A link-state IGP is required to distribute SID information.
  • D For TE-constrained tunnels, each data packet typically carries a single MPLS label to specify the tunnel path.
Explanation

An SR-MPLS traffic-engineered path is encoded at the ingress as an ordered segment list carried in an MPLS label stack. A constrained path commonly requires multiple segment labels to steer traffic through the required nodes or adjacencies; a single MPLS label does not typically specify the entire constrained tunnel path. Segment Routing eliminates intermediate per-path state through source routing.

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