HPE Network Switching Professional (HPE7-A08)

By HP · Question Mode

QuestionQ10

Manage, maintain, optimize, and monitor the wired network solution

OSPF peering is configured between HPE Aruba Networking CX 6300 switches using BFD. Given the following configuration on switch A, with switch B using its default settings:

(config-if)# bfd min-transmit-interval=1000  
(config-if)# bfd-min-echo-receive-interval=1000  
(config-if)# bfd detect-multiplier=5

If a link fails, how long does it take for the relationship to be brought down?

Explanation

BFD echo failure detection uses the minimum echo receive interval multiplied by the detection multiplier. A 1000 ms interval with a multiplier of 5 produces a 5000 ms detection time, after which the BFD session and dependent OSPF adjacency are brought down.

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