Configuring OSPF FRR to calculate a backup next hop using the LFA algorithm
Step | Command | Remarks |
---|---|---|
1. Enter system view. | system-view | N/A |
2. Configure the source address of echo packets. | bfd echo-source-ip ip-address | By default, the source address of echo packets is not configured. |
3. Enter interface view. | interface interface-type interface-number | N/A |
4. Enable LFA calculation on an interface. | ospf fast-reroute lfa-backup | By default, the interface on which LFA calculation is enabled can be selected as a backup interface. |
5. Return to system view. | quit | N/A |
6. Enter OSPF view. | ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] * | N/A |
7. Enable OSPF FRR to calculate a backup next hop by using the LFA algorithm. | fast-reroute lfa [ abr-only ] | By default, OSPF FRR is not configured. If abr-only is specified, the route to the ABR is selected as the backup path. |