R1:
<NE-1>dis c c ospf
#
ospf 1 router-id 1.1.1.1
opaque-capability enable
frr
loop-free-alternate
area 0.0.0.0
network 1.1.1.1 0.0.0.0
#
return
R2:
<NE-2>dis c c ospf
#
ospf 1 router-id 2.2.2.2
opaque-capability enable
frr
loop-free-alternate
area 0.0.0.0
network 2.2.2.2 0.0.0.0
#
return
R3:
<NE-3>dis c c ospf
#
ospf 1 router-id 3.3.3.3
opaque-capability enable
frr
loop-free-alternate
area 0.0.0.0
network 3.3.3.3 0.0.0.0
#
return
R4:
<NE-4>dis c c ospf
#
ospf 1 router-id 4.4.4.4
opaque-capability enable
frr
loop-free-alternate
area 0.0.0.0
network 4.4.4.4 0.0.0.0
#
return
Before IP FRR configuration in OSPF :
After IP FRR configuration in OSPF backup next-hop is installed in FIB table.
