(Optional) Preventing an Interface from Dynamically Setting Up a BFD Session
Context
After the bfd all-interfaces enable command is run in an OSPF process, BFD sessions are established on all OSPF interfaces with the neighbor relationships being in Full state in the process.
Procedure
- Run system-view
The system view is displayed.
- Run interface interface-type interface-number
The view of the interface enabled with BFD for OSPF is displayed.
- On an Ethernet interface, run undo portswitch
The interface is switched to Layer 3 mode.
By default, an Ethernet interface works in Layer 2 mode.
The mode switching function takes effect when the interface only has attribute configurations (for example, shutdown and description configurations). Alternatively, if configuration information supported by both Layer 2 and Layer 3 interfaces exists (for example, mode lacp and lacp system-id configurations), no configuration that is not supported after the working mode of the interface is switched can exist. If unsupported configurations exist on the interface, delete the configurations first and then run the undo portswitch command.
If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.
- Run ospf bfd block
The interface is prevented from dynamically setting up a BFD session.
- Run commit
The configuration is committed.
