What BFD multiplier value does application-aware routing use?
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Correct answer: 6.
Why this is the answer
Application-aware routing in Cisco SD-WAN uses a BFD (Bidirectional Forwarding Detection) multiplier value of 6. This multiplier is applied to the BFD interval to determine the hold-down timer. A multiplier of 6 means that if 6 consecutive BFD hellos are missed, the link is declared down. This value is a balance between fast detection of link failures and avoiding false positives due to transient network issues. Other values like 7, 8, or 9 are not the default or standard multiplier used by application-aware routing for its link health monitoring.
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