Configure RIP to Coordinate with BFD
A backup interface can be used only in a specific application environment, but it cannot meet the real-time backup requirement. At this time, RIP provides the point-to-point Bidirectional Forwarding Detection (BFD) function to realize fast convergence and switchover of routes. BFD provides a method for quickly detecting the status of a line between two devices. When BFD detection is enabled between two adjacent RIP devices, if the line between the two devices is faulty, BFD can quickly find the fault and notify RIP. RIP then deletes the RIP route that is associated with the BFD interface. If the route has a backup route, a switchover to the backup route will be performed in a very short period of time (which is determined by BFD settings). Currently, RIP only supports single-hop bi-directional BFD detection.
Table 5-24 Configuring RIP to Coordinate with BFD
Step
|
Command
|
Description
|
Enter the global configuration mode.
|
configure terminal
|
-
|
Enter the RIP configuration mode.
|
router rip
|
Mandatory.
By default, the RIP process is disabled.
|
Enable the BFD function on all the interfaces that are covered by the RIP process.
|
bfd all-interfaces
|
Mandatory.
By default, the BFD function is disabled on all the interfaces that are covered by the RIP process.
|
Return to the global configuration mode.
|
exit
|
-
|
Enter the interface configuration mode.
|
interface interface-name
|
-
|
Enable the BFD function on the interface.
|
ip rip bfd
|
Mandatory.
By default, the BFD function is disabled on the interface.
|
-
For the related configuration of BFD, refer to the reliability technology-BFD Technical Manual.