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(Optional) Binding OSPF IP FRR and BFD
Context
During the configuration of OSPF IP FRR, the lower layer needs to fast respond to the link change so that traffic can be rapidly switched to the backup link in the case of a link failure. 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 configured on the interface.
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