What is the preferred method to improve neighbor loss detection in EIGRP?
A.
EIGRP natively detects neighbor down immediately, and no additional feature or configuration is
required.
B.
BFD should be used on interfaces that support it for rapid neighbor loss detection.
C.
Fast hellos (subsecond) are preferred for EIGRP, so that it learns rapidly through its own
mechanisms.
D.
Fast hellos (one-second hellos) are preferred for EIGRP, so that it learns rapidly through its own
mechanisms.
Bi-directional Forwarding Detection (BFD) provides rapid failure detection times between
forwarding engines, while maintaining low overhead. It also provides a single, standardized method of link/device/protocol failure detection at any protocol layer and over any media
Reference. “Bidirectional Forwarding Detection for EIGRP”
http://www.cisco.com/en/US/technologies/tk648/tk365/tk207/technologies_white_paper0900aecd8
0243fe7.html
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BFD is Cisco recommended solution
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