I have two ASR 9006 routers (R2 and R3) and an ASR 9001 router (R1) connected in a ring.
R1
/ \
R2 --- R3
We have bfd and fast-reroute configured on all three routers.
All routers have in area 0 the loopback and the physical point to point interfaces.
We have a cost of 100 set on the physical interfaces of R1.
The link between R2 and R3 is a bundle interface with a cost of 50.
R1 loopback 10.226.13.5
R2 loopback 10.233.171.80
R3 loopback 10.233.171.81
When we do a show route to the loopback interfaces on R2 and R3 everything looks normal.
R2 -> R3
Routing entry for 10.233.171.81/32
Known via "ospf 363", distance 110, metric 51, labeled SR, type intra area
Installed Dec 11 13:26:33.967 for 4d21h
Routing Descriptor Blocks
10.253.0.10, from 10.233.171.81, via Bundle-Ether20, Protected
Route metric is 51
10.253.0.2, from 10.233.171.81, via TenGigE0/0/0/14, Backup (Local-LFA)
Route metric is 201
No advertising protos.
R2 -> R1
Routing entry for 10.226.13.5/32
Known via "ospf 363", distance 110, metric 101, type intra area
Installed Dec 11 13:26:33.964 for 4d21h
Routing Descriptor Blocks
10.253.0.10, from 10.226.13.5, via Bundle-Ether20, Backup (Local-LFA)
Route metric is 151
10.253.0.2, from 10.226.13.5, via TenGigE0/0/0/14, Protected
Route metric is 101
No advertising protos.
R3 -> R2
Routing entry for 10.233.171.80/32
Known via "ospf 363", distance 110, metric 51, labeled SR, type intra area
Installed Dec 11 13:26:33.282 for 4d20h
Routing Descriptor Blocks
10.253.0.9, from 10.233.171.80, via Bundle-Ether20, Protected
Route metric is 51
10.253.0.6, from 10.233.171.80, via TenGigE0/0/0/14, Backup (Local-LFA)
Route metric is 201
No advertising protos.
R2 -> R1
Routing entry for 10.226.13.5/32
Known via "ospf 363", distance 110, metric 101, type intra area
Installed Dec 11 13:26:33.279 for 4d21h
Routing Descriptor Blocks
10.253.0.9, from 10.226.13.5, via Bundle-Ether20, Backup (Local-LFA)
Route metric is 151
10.253.0.6, from 10.226.13.5, via TenGigE0/0/0/14, Protected
Route metric is 101
So we are seeing the protected route with metric 101 and backup local-lfa with metric 151 with the path R2 to R1 and R3 to R1, which is expected.
The issue is with R1 to R2 or R3 is showing a backup that is not a local-lfa and has the backup metric set to 0.
R1 -> R2
Routing entry for 10.233.171.80/32
Known via "ospf 363", distance 110, metric 101, type intra area
Installed Dec 11 13:26:46.701 for 4d20h
Routing Descriptor Blocks
10.253.0.1, from 10.233.171.80, via TenGigE0/0/2/2, Protected
Route metric is 101
10.253.0.5, from 10.233.171.80, via TenGigE0/0/2/3, Backup
Route metric is 0
No advertising protos.
R1 -> R3
Routing entry for 10.233.171.81/32
Known via "ospf 363", distance 110, metric 101, type intra area
Installed Dec 11 13:26:46.701 for 4d20h
Routing Descriptor Blocks
10.253.0.1, from 10.233.171.81, via TenGigE0/0/2/2, Backup
Route metric is 0
10.253.0.5, from 10.233.171.81, via TenGigE0/0/2/3, Protected
Route metric is 101
No advertising protos.
Any ideas why the backup routes on R1 are not local-lfa and not a metric of 151?
