Hi Kingman
Yes, it's LFA.
** HGK01 used HKG02 as next-hop ,right.
HKG01_RE1> show route 172.16.128.2
inet.0: 691646 destinations, 3524041 routes (691387 active, 11 holddown, 1033 hidden)
+ = Active Route, - = Last Active, * = Both
172.16.128.2/32 *[LDP/9] 03:56:25, metric 6
> to 192.168.146.37 via ae8.1, Push 302432
to 192.168.147.33 via xe-1/3/2.1, Push 318768
[OSPF/10] 03:58:05, metric 6
> to 192.168.146.37 via ae8.1
to 192.168.147.33 via xe-1/3/2.1
** But using the command you suggested, seems not be the same as what you said.
Did I set anything worng ? Or it is normal ?
HKG01_RE1> show ospf backup neighbor
Topology default backup neighbors:
Area 0.0.0.0 backup neighbors:
192.168.146.6 via: Direct
Neighbor to Self Metric: 1
Self to Neighbor Metric: 1
Direct next-hop: ae8.1 via 192.168.146.37
HKG01_RE1> show ospf backup lsp
{master}
HKG01_RE1> show ospf route 172.16.128.2
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
172.16.128.2 Intra AS BR IP 6 ae8.1 192.168.146.37
Bkup IP xe-1/3/2.1 192.168.147.33
172.16.128.2/32 Intra Network IP 6 ae8.1 192.168.146.37
Bkup IP xe-1/3/2.1 192.168.147.33
HKG02_RE1> show ospf backup neighbor
Topology default backup neighbors:
192.168.146.2 via: Direct
Neighbor to Self Metric: 1
Self to Neighbor Metric: 1
Direct next-hop: ae8.1 via 192.168.146.38
172.16.128.2 via: Direct
Neighbor to Self Metric: 5
Self to Neighbor Metric: 5
Direct next-hop: xe-1/2/2.0 via 172.16.128.41
HKG02_RE1> show ospf backup lsp
{master}
HKG02_RE1> show ospf route 172.16.128.2
Topology default Route Table:
Prefix Path Route NH Metric NextHop Nexthop
Type Type Type Interface Address/LSP
172.16.128.2 Intra AS BR IP 5 xe-1/2/2.0 172.16.128.41
172.16.128.2/32 Intra Network IP 5 xe-1/2/2.0 172.16.128.41