Fast-Reroute - HP FlexNetwork 3600 v2 Series Command Reference Manual

fast-reroute

Syntax
fast-reroute { auto [ abr-only ] | route-policy route-policy-name }
undo fast-reroute
View
OSPF view
Default level
2: System level
Parameters
auto: Calculates a backup next hop automatically for all routes.
abr-only: Selects only the route to the ABR as the backup path.
route-policy route-policy-name: References a routing policy to designate a backup next hop. The
route-policy-name argument is a string of 1 to 63 case-sensitive characters.
Description
Use fast-reroute to configure OSPF fast reroute (FRR).
Use undo fast-reroute to restore the default.
By default, OSPF FRR is not configured.
IMPORTANT:
• Do not use OSPF FRR and BFD (for OSPF) at the same time; otherwise, OSPF FRR may fail to
take effect.
• Do not use the fast-reroute auto command together with the commands vlink-peer.
Examples
# Enable FRR to automatically calculate a backup next hop for all routes in OSPF process 100.
<Sysname> system-view
[Sysname] bfd echo-source-ip 1.1.1.1
[Sysname] ospf 100
[Sysname-ospf-100] fast-reroute auto
# Enable FRR to designate a backup next hop by using routing policy frr for OSPF process 100.
<Sysname> system-view
[Sysname] bfd echo-source-ip 1.1.1.1
[Sysname] ip ip-prefix abc index 10 permit 100.1.1.0 24
[Sysname] route-policy frr permit node 10
[Sysname-route-policy] if-match ip-prefix abc
[Sysname-route-policy] apply fast-reroute backup-interface vlan-interface 1
backup-nexthop 193.1.1.8
[Sysname-route-policy] quit
[Sysname] ospf 100
[Sysname-ospf-100] fast-reroute route-policy frr
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