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300-610 · Question #224

A Cisco engineer is configuring MPLS VPN BGP at a customer site that is connected to the provider site by more than one path MPLS VPN BGP Local Convergence link protection is enabled. After the engine

The correct answer is B. BGP must support lossless switchover between operational paths. Both the main forwarding path and the redundant backup path must have been installed within Border Gateway Protocol (BGP), and BGP must support lossless switchover between operational

Network Design

Question

A Cisco engineer is configuring MPLS VPN BGP at a customer site that is connected to the provider site by more than one path MPLS VPN BGP Local Convergence link protection is enabled. After the engineer installs the main forwarding path and the redundant backup path within the BGP, they assign a unique route distinguisher to each VRF table on all PE devices that serve as a backup to the link. What is a prerequisite for this local convergence to work?

Options

  • AInterautonomous system option A (back-to-back VRF) is active.
  • BBGP must support lossless switchover between operational paths
  • CIP/GRE is enabled.
  • DThe system is performing a PE-CE link protection on both ends

How the community answered

(26 responses)
  • A
    4% (1)
  • B
    85% (22)
  • C
    8% (2)
  • D
    4% (1)

Explanation

Both the main forwarding path and the redundant backup path must have been installed within Border Gateway Protocol (BGP), and BGP must support lossless switchover between operational

Topics

#MPLS VPN BGP#Local Convergence#link protection#route distinguisher

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