A company has critical VPC workloads that connect to an on-premises data center through two redundant active-passive AWS Direct Connect connections. However, a recent outage on one Direct Connect…

Question

Options

• AReduce the BGP hold-down timer that is configured on the BGP sessions on the Direct Connect
• BConfigure an Amazon CloudWatch alarm for the Direct Connect connection state to invoke an
• CConfigure Bidirectional Forwarding Detection (BFD) on the Direct Connect connections on the
• DConfigure Bidirectional Forwarding Detection (BFD) on the Direct Connect connections on the on-

• A
  20% (4)
• B
  5% (1)
• C
  10% (2)
• D
  65% (13)

Explanation

https://docs.aws.amazon.com/directconnect/latest/UserGuide/Welcome.html By enabling BFD on both sides of the Direct Connect connection, you can reduce the BGP failover time from minutes to seconds. BFD allows the BGP neighbor relationship to be quickly torn down when a failure is detected on the Direct Connect connection. Otherwise, by default, BGP waits for three keep-alives to fail at a hold-down time of 90 seconds.

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