Which task must be performed first to Implement BFD in an IS-IS environment?
A.
Disable Cisco Express Forward.ng on all interfaces running routing protocols other than IS-IS
B.
Configure BFD under the IS-IS process
C.
Configure all ISIS routers as Level 2 devices
D.
Configure BFD in an interface configuration mode
The Answer Is:
D
This question includes an explanation.
Explanation:
To implement Bidirectional Forwarding Detection (BFD) in an IS-IS environment, the first task is to configure BFD in an interface configuration mode. This involves setting up BFD parameters on the interfaces where IS-IS is running to enable quick failure detection.
References: Implementing BFD in an IS-IS Environment - Exam-Answer3.
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