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

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QuestionQ173

MPLS and Segment Routing

Refer to the exhibit. How are packets forwarded through the data plane when SRv6 is deployed?

Question Image

  • A An ordered list of segments is encoded in a routing extension header
  • B The MPLS data plane is used to push labels onto IGP routes
  • C A stack of labels represents an ordered list of segments
  • D The packet is encapsulated with a header and trailer encoding the ordered list of segments
Explanation

SRv6 steers packets using an IPv6 Segment Routing Header (SRH), a routing extension header that encodes an ordered list of Segment Identifiers (SIDs). This differs from SR-MPLS, which represents segments with an MPLS label stack.

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