(Optional) Binding OSPF IP FRR and BFD

Context

If OSPF IP FRR is configured, the lower layer needs to fast respond to link changes so that traffic can be rapidly switched to backup links in the case of a link failure. You can bind BFD to the link status so that link faults can be detected rapidly. This ensures that traffic is rapidly switched to the backup link in the case of link failures.

Binding OSPF IP FRR and BFD can be configured in a specified process or on a specified interface. The priority of BFD configured on an interface is higher than that of BFD configured in an OSPF process. If BFD is enabled on an interface, a BFD session is established according to the BFD parameters set on the interface.

Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support this function.

Procedure

Bind OSPF IP FRR and BFD in a specified process.
1. Run system-view
  The system view is displayed.
2. Run bfd
  BFD is globally configured.
3. Run quit
  Return to the system view.
4. Run ospf [ process-id | router-id router-id | vpn-instance vpn-instance-name ] ^*
  The OSPF process is enabled, and the OSPF view is displayed.
5. Run bfd all-interfaces enable
  BFD is enabled in the OSPF process.
6. Run bfd all-interfaces frr-binding
  IP FRR is bound to BFD in an OSPF process.
Bind OSPF IP FRR and BFD on a specified interface.
1. Run system-view
  The system view is displayed.
2. Run bfd
  BFD is globally configured.
3. Run quit
  Return to the system view.
4. Run interface interface-type interface-number
  The interface view is displayed.
5. Run ospf bfd enable
  BFD is enabled on the OSPF interface.
6. Run ospf bfd frr-binding
  IP FRR is bound to BFD on the OSPF interface.