fast-reroute per-prefix ti-lfa area (OSPFv2)
Use this command to enable Topology-Independent Loop-Free Alternate (TI-LFA) per area. TI-LFA uses segment routing to provide link, node, and Shared Risk Link Groups (SRLG) protection in topologies where other fast reroute techniques, such as RLFA (Remote Loop Free Alternative) cannot provide protection.
Use the no form of this command to disable TI-LFA.
Command Syntax
fast-reroute per-prefix ti-lfa area (A.B.C.D|<0-4294967295>)
no fast-reroute per-prefix ti-lfa area (A.B.C.D|<0-4294967295>)
Parameters
A.B.C.D
OSPF area ID in IPv4 address format.
<0-4294967295>
OSPF area ID as a decimal value.
Default
TI-LFA is disabled.
Command Mode
OSPF router mode
Applicability
This command was introduced in OcNOS version 4.0.
Examples
#configure terminal
(config)#router ospf 1
(config-router)#fast-reroute per-prefix ti-lfa area 2
(config-router)#no fast-reroute per-prefix ti-lfa area 2
Last modified date: 10/20/2023