R211x-HP Flexfabric 11900 Layer 3 - IP Routing Command Reference

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fast-reroute (OSPF view)
Use fast-reroute to configure OSPF FRR.
Use undo fast-reroute to restore the default.
Syntax
fast-reroute { lfa [ abr-only ] | route-policy route-policy-name }
undo fast-reroute
Default
OSPF FRR is disabled.
Views
OSPF view
Predefined user roles
network-admin
mdc-admin
Parameters
lfa: Uses the LFA algorithm to calculate a backup next hop for all routes.
abr-only: Uses the next hop of the route to the ABR as the backup next hop.
route-policy route-policy-name: Uses a routing policy to designate a backup next hop. The
route-policy-name argument is a case-sensitive string of 1 to 63 characters.
Usage guidelines
Do not use OSPF FRR and BFD for OSPF at the same time. Otherwise, OSPF FRR might fail to work.
Do not use the fast-reroute lfa command together with the vlink-peer or sham-link (see MPLS Command
Reference) command.
When both OSPF FRR and PIC are configured, OSPF FRR takes effect.
Examples
# Enable FRR to calculate a backup next hop for all routes by using LFA algorithm in OSPF process 1.
<Sysname> system-view
[Sysname] ospf 1
[Sysname-ospf-1] fast-reroute lfa
filter (OSPF area view)
NOTE:
This command is available only on an ABR.
Use filter to configure OSPF to filter inbound/outbound Type-3 LSAs on an ABR.
Use undo filter to disable Type-3 LSA filtering.
Syntax
filter { acl-number | prefix-list prefix-list-name | route-policy route-policy-name } { export | import }