Symptom

When we have ECMP paths for the same route where few paths are pointing to object tracking and few to Null0 : router static vrf internet address-family ipv4 unicast 62.240.120.64/32 Null0 15 62.240.120.64/32 GigabitEthernet0/2/0/1 10.5.15.217 track 10GIG 62.240.120.64/32 GigabitEthernet0/3/0/0 10.5.115.97 track 10GIG ! ! And then when we cut the link for these two paths (by doing shut of interface etc..) 62.240.120.64/32 GigabitEthernet0/2/0/1 10.5.15.217 track 10GIG 62.240.120.64/32 GigabitEthernet0/3/0/0 10.5.115.97 track 10GIG It was not adding the backup path with worse distance : 62.240.120.64/32 Null0 15

Conditions

shut/unshut of the interface with which static route is learnt. Conditions to hit the problem ? ECMP paths for the same route having worse distance for path pointing to Null0 bring down the primary paths with best distance

Workaround

Workarounds are: 1) Removing Track object

Further Problem Description