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A company operates critical VPC workloads connected to an on-premises data center via two redundant active-passive AWS Direct Connect links. During a recent outage on one Direct Connect link, it was observed that traffic failover to the secondary link took over a minute. The company aims to minimize this failover time from minutes to seconds.
Which solution will achieve the GREATEST reduction in BGP failover time?
A
Reduce the BGP hold-down timer that is configured on the BGP sessions on the Direct Connect connection VIFs.
B
Configure an Amazon CloudWatch alarm for the Direct Connect connection state to invoke an AWS Lambda function to fail over the traffic.
C
Configure Bidirectional Forwarding Detection (BFD) on the Direct Connect connections on the AWS side.
D
Configure Bidirectional Forwarding Detection (BFD) on the Direct Connect connections on the on-premises router.