400-101 – CCIE Routing and Switching Written

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  Reduced EIGRP timers have an absolute minimum detection timer of 1-2 seconds, BFD can provide sub-second failure detection.

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  BFD resides on the control plane, so it is less CPU-intensive than if it resided on the data plane.

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  Some parts of BFD can be distributed to the data plane, so it can be less CPU-intensive than reduced timers, which exist wholly at the control plane.

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  BFD is tied to specific routing protocols and can be used for generic fault detection for the OSPF, EIGRP, and BGP routing protocols.

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  BFD is dependent on the EIGRP routing protocol, so it can be used as a specific failure detection mechanism.

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  BFD is independent of the routing protocol, so it can be used as a generic failure detection mechanism for EIGRP.
  
  

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  Ignore Python compiled files

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  Ignore Python source code files

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  Ignore the env directory

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  Ignore the env file
  
  

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  it supports dynamic multipoint tunneling

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  it supports manual point-to-point tunneling

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  it uses the instance ID to support virtualization

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  the LISP control plane exchanges routes and determines the next hop

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  it supports dynamic point-to-point tunneling