400-007: Cisco Certified Design ExpertDemo

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QuestionQ203

Network Design

Which architecture does not need an explicit multicast-signaling protocol, such as PIM or P2MP, to signal multicast state hop by hop, but instead uses a link-state protocol to advertise the multicast forwarding state?

  • A Bi-Directional Implicit Replication
  • B Bit Indexed Explicit Replication
  • C Binary Intermediate Enhanced Routing
  • D Binary Indexed Explicit Routing
Explanation

Bit Index Explicit Replication (BIER) provides multicast forwarding without an explicit tree-building protocol or multicast-related per-flow state at intermediate routers. BIER routers exchange BIER-specific forwarding information within the domain, and link-state protocols such as OSPF can distribute that information. RFC 8444

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