HPE Network Switching Professional (HPE7-A08)

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QuestionQ25

Troubleshoot the wired network solution

OSPF peering is configured between HPE Aruba Networking CX 6300 switches using BFD. You made the following configuration on switch B, while switch A remains at its default configuration:

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Which BFD Tx/Rx interval values will switch A use in show bfd session?

Explanation

BFD negotiates each control-packet transmit interval as the greater of the transmitting device's desired minimum transmit interval and the receiving peer's required minimum receive interval. Because switch B is configured with 2000 ms minimum transmit and receive intervals, switch A uses negotiated 2000 ms Tx/Rx intervals. A detection multiplier of 3 yields a 6000 ms detection time, rather than a 6000 ms transmit or receive interval.

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