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
nexthop 6.6.6.6 MPLS-Remote-Lfa6, repair, adjacency IP midchain out of MPLS-Remote-Lfa6 12CD7880
output chain: label [31|537]
FRR Primary (0x11139020)
<primary: TAG adj out of Vlan4004, addr 71.14.1.4 12D8A780>
<repair: TAG midchain out of MPLS-Remote-Lfa6 12CD6580 label 338 TAG adj out of Vlan4003, addr 71.17.1.7 12CD7160>
To display local Routing Information Base (RIB) or locally redistributed routes use the following show command.
Router# show ip ospf rib 171.1.1.0
OSPF Router with ID (1.1.1.1) (Process ID 1)
Base Topology (MTID 0)
OSPF local RIB
Codes: * - Best, > - Installed in global RIB
LSA: type/LSID/originator
*> 171.1.1.0/24, Intra, cost 2, area 0
SPF Instance 130, age 00:03:52
Flags: RIB, iSPF
via 71.14.1.4, Vlan4004
Flags: RIB, iSPF
LSA: 1/2.0.0.2/2.0.0.2
repair path via 6.6.6.6, MPLS-Remote-Lfa6, cost 4
Flags: RIB, Repair, IntfDj, BcastDj, CostWon
LSA: 1/2.0.0.2/2.0.0.2
To display information for an IS-IS per-prefix LFA-FRR configuration, use the following show command.
Router# show isis fast-reroute remote-lfa tunnels
Tag Null - Fast-Reroute Remote-LFA Tunnels:
MPLS-Remote-Lfa1: use Vl4003, nexthop 71.17.1.7, end point 6.6.6.6
MPLS-Remote-Lfa2: use Vl4004, nexthop 71.14.1.4, end point 5.5.5.5
To display entries in the 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/18
contains path extension list
disposition chain 0x12B537C8
ifnums:
Vlan4004(30): 71.14.1.4
MPLS-Remote-Lfa1(32)
path 12C55CB4, path list 12C856E8, share 1/1, type attached nexthop, for IPv4, flags has-repair
MPLS short path extensions: MOI flags = 0x20 label none
nexthop 71.14.1.4 Vlan4004 label [none|23], adjacency IP adj out of Vlan4004, addr 71.14.1.4 1139FAA0
repair: attached-nexthop 6.6.6.6 MPLS-Remote-Lfa1 (12C55D24)
path 12C55D24, path list 12C856E8, share 1/1, type attached nexthop, for IPv4, flags repair, repair-only
nexthop 6.6.6.6 MPLS-Remote-Lfa1, repair, adjacency IP midchain out of MPLS-Remote-Lfa1 12D512C0
output chain: label [none|23]
FRR Primary (0xA74F800)
<primary: IP adj out of Vlan4004, addr 71.14.1.4 1139FAA0>
<repair: TAG midchain out of MPLS-Remote-Lfa1 11180740 label 366 TAG adj out of Vlan4003, addr 71.17.1.7 12D51520>
To display information about IS-IS FRR configurations, use the following show command.
Router# show isis fast-reroute summary
Tag null:
IPv4 Fast-Reroute Protection Summary:
Prefix Counts: Total Protected Coverage
High priority: 0 0 0%
Normal priority: 10 8 80%
Total: 10 8 80%
To display paths for a specific route or for all routes under a major network that are stored in the IP local Routing Information
Base (RIB), use the following show command.
Router# show isis rib 171.1.1.0
IPv4 local RIB for IS-IS process
IPV4 unicast topology base (TID 0, TOPOID 0x0) =================
Repair path attributes:
DS - Downstream, LC - Linecard-Disjoint, NP - Node-Protecting
PP - Primary-Path, SR - SRLG-Disjoint
Routes under majornet 171.1.0.0/16:
171.1.1.0/24
[115/L1/10] via 71.14.1.4(Vlan4004), from 71.14.1.4, tag 0, LSP[2/18]
(installed)
repair path: 6.6.6.6(MPLS-Remote-Lfa1) metric:20 (DS,SR) LSP[2]