What is a prerequisite for configuring BFD?
What is a prerequisite for configuring BFD?
Cisco Express Forwarding (CEF) must be enabled on all participating BFD endpoints. CEF is a high-speed packet forwarding mechanism that BFD relies on to quickly detect link failures. Without CEF, BFD packets would have to be handled by the CPU, which could slow down the detection of failures. Hence, enabling CEF ensures efficient operation of BFD.
choose C
Prerequisites for Bidirectional Forwarding Detection •Cisco Express Forwarding (CEF) and IP routing must be enabled on all participating routers. https://www.cisco.com/en/US/docs/ios/12_4t/ip_route/configuration/guide/t_bfd.html#wp1043332
answer is C https://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/fs_bfd.html#wp1043332
C is correct
C is correct, CEF is a high-speed packet forwarding mechanism that BFD relies on to quickly detect link failures. CEF must typically be enabled for BFD to function properly on Cisco devices. Without CEF, the BFD packets might have to be process-switched (handled by the CPU), which could slow down the detection of failure
Agreed for C
The correct answer is: C
the given answer is correct
The given answer is correct
Prerequisites for Bidirectional Forwarding Detection Cisco Express Forwarding and IP routing must be enabled on all participating routers
CCIEBYDEC is correct, it's the very first pre-requisite.....it's C
Prerequisites for Bidirectional Forwarding Detection One of the IP routing protocols supported by BFD must be configured on the routers before BFD is deployed. ... The router must be running BFD Version 1. The BFD session type must be IPv4 single hop. BFD echo mode must be disabled for the session.