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

By Cisco · Question Mode

QuestionQ214

MPLS and Segment Routing

Refer to the exhibit.

Question Image

A network engineer is enabling a segment-routing solution with these requirements:

  • A service provider uses the default and nondefault SID ranges for interface allocation.
  • The 192.168.10.0/30 interface must add a SID with an index value of 20 from the default range.
  • The 192.168.30.0/30 interface must use a nondefault range and an index value of 50.

Which configuration must be implemented to satisfy the requirements?

  • A
  • B
  • C
  • D
Explanation

An interface-specific segment is an adjacency SID, which is locally significant and allocated from the Segment Routing Local Block (SRLB). A nondefault SRLB must therefore be configured on the router before assigning the adjacency-SID index for that interface. Choice D is the only configuration using adjacency SIDs with a custom local block and index 50; the prefix-SID choices use the wrong SID type. The stated index 20 for the first interface conflicts with every supplied choice—D configures index 10, which maps to label 15010 when the default SRLB is 15000–15999—but D is the only technically valid intended option.

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