Company XYZ was not satisfied with the reconvergence time OSPF is taking. BFD was implemented to try to reduce the reconvergence time, but the network is still experiencing delays when having to reconverge. Which technology will improve the design?
B (BFD Echo):BFD Echo mode uses local hardware-based loopback mechanisms for even faster fault detection than regular BFD asynchronous mode, significantly reducing failure detection time and thus convergence delay.
Other options explained:
A/D: OSPF fast hellos improve OSPF detection but are still control-plane driven and slower than hardware-based BFD Echo.
C: BGP is slower to converge than OSPF, especially for IGP-like designs.
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