Which task must be performed first to implement BFD in an IS-IS environment?

Which task must be performed first to implement BFD in an IS-IS environment?
A . Configure BFD in an interface configuration mode.
B . Disable Cisco Express Forwarding on all interfaces running routing protocols other than IS-I
D . Configure all IS-IS routers as Level 2 devices.
E . Configure BFD under the IS-IS process.

View Answer

Answer: D

Explanation:

Reference: https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/fs_bfd.html#wp1131797