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Cisco ASR 901 Series Aggregation Services Router Software Configuration Guide
OL-23826-09
Chapter39 Remote Loop-Free Alternate - Fast Reroute
How to Configure Remote Loop-Free Alternate - Fast Reroute
Verifying Remote LFA-FRR Configuration
To verify the remote LFA-FRR configuration, use the show commands described in the following
examples.
To display information for an OSPF per-prefix LFA-FRR configuration, use the following show
command.
Router# show ip ospf fast-reroute remote-lfa tunnels
OSPF Router with ID (1.1.1.1) (Process ID 1)
Area with ID (0)
Base Topology (MTID 0)
Interface MPLS-Remote-Lfa5
Tunnel type: MPLS-LDP
Tailend router ID: 5.5.5.5
Termination IP address: 5.5.5.5
Outgoing interface: Vlan4004
First hop gateway: 71.14.1.4
Tunnel metric: 2
Protects:
71.17.1.7 Vlan4003, total metric 4
Interface MPLS-Remote-Lfa6
Tunnel type: MPLS-LDP
Tailend router ID: 6.6.6.6
Termination IP address: 6.6.6.6
Outgoing interface: Vlan4003
First hop gateway: 71.17.1.7
Tunnel metric: 2
Protects:
71.14.1.4 Vlan4004, total metric 4
To display entries in the Cisco Express Forwarding (CEF) Forwarding Information Base (FIB), use the
following show command.
Router# show ip cef 171.1.1.0 internal
171.1.1.0/24, epoch 0, RIB[I], refcount 5, per-destination sharing
sources: RIB, LTE
feature space:
IPRM: 0x00028000
LFD: 171.1.1.0/24 1 local label
local label info: global/542
contains path extension list
disposition chain 0x12E83850
label switch chain 0x12E83850
ifnums:
Vlan4004(30): 71.14.1.4
MPLS-Remote-Lfa6(37)
path 12C70E98, path list 12D52154, share 1/1, type attached nexthop, for IPv4, flags
has-repair
MPLS short path extensions: MOI flags = 0x20 label 31
nexthop 71.14.1.4 Vlan4004 label [31|537], adjacency IP adj out of Vlan4004, addr
71.14.1.4 12CD6A40
repair: attached-nexthop 6.6.6.6 MPLS-Remote-Lfa6 (12C70FE8)
path 12C70FE8, path list 12D52154, share 1/1, type attached nexthop, for IPv4, flags
repair, repair-only