Which configuration is missing to complete the configuration task of enabling BFD with the
192.168.1.1 EBGP peer?
A.
bfd fast-detect also needs to be enabled globally under router bgp 64500
RP/0/RSP0/CPU0:P1(config-bgp)#bfd fast-detect
B.
bfd fast-detect also needs to be enabled for the address-family under address-family ipv4
unicast
RP/0/RSP0/CPU0:P1(config-bgp-af)#bfd fast-detect
C.
bfd fast-detect also needs to be enabled for the 192.168.1.1 neighbor under neighbor
192.168.1.1
RP/0/RSP0/CPU0:P1(config-bgp-nbr)#bfd fast-detect
D.
bfd fast-detect also needs to be enabled for the 192.168.1.1 neighbor address-family under
neighbor 192.168.1.1 address-family ipv4 unicast
RP/0/RSP0/CPU0:P1(config-bgp-nbr-af)#bfd fast-detect
E.
bfd fast-detect also needs to be enabled globally on the router
RP/0/RSP0/CPU0:P1(config)#bfd fast-detect
IOS XR
router bgp 12345
bfd minimum-interval 100
bfd multiplier 3
neighbor 10.10.101.100
bfd fast-detect
IOS/IOS XE
interface GigabitEthernet0/0/0
bfd interval 100 min_rx 100 multiplier 3
!
router bgp 12345
neighbor 10.10.100.6 fall-over bfd
http://www.cisco.com/c/en/us/td/docs/routers/crs/software/crs_r4-1/interfaces/configuration/guide/hc41crsbook/hc41bifw.html#pgfId-1013629
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Thanks all comments and good luck all!