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H12-841_V1.5 · Question #184

In the WAN BGP protocol, if "route reflectors are configured between IBGP neighbors, and route transmission between the reflector's client and non-client is normal," then which of the following loop…

The correct answer is B. Route Reflector Cluster List Anti-loop (records reflector cluster IDs to prevent loops). See the full explanation below for the reasoning.

Campus Network Design and Planning

Question

In the WAN BGP protocol, if "route reflectors are configured between IBGP neighbors, and route transmission between the reflector's client and non-client is normal," then which of the following loop prevention mechanisms is in effect?

Options

  • AAS_PATH loop prevention (check if the route includes the local AS number)
  • BRoute Reflector Cluster List Anti-loop (records reflector cluster IDs to prevent loops)
  • CIBGP split horizon (IBGP neighbors do not forward routes to each other)
  • DMED attribute loop prevention (determining route priority based on MED value)

How the community answered

(35 responses)
  • A
    9% (3)
  • B
    86% (30)
  • C
    3% (1)
  • D
    3% (1)

Topics

#BGP route reflector#cluster list#IBGP loop prevention#route reflection

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