IS-IS interface flapping suppression is globally enabled by default. If this function is not needed, you can disable it.
If IS-IS interfaces frequently alternate between up and down, the interfaces will flap, and protocol packets will be frequently exchanged, affecting IS-IS services and other services relying on IS-IS. Interface flapping suppression can address this issue. This function allows a device to delay interface state changes to up. If this function is not needed, you can disable it.
Before configuring IS-IS interface flapping suppression, configure basic IS-IS functions.
The system view is displayed.
IS-IS interface flapping suppression is disabled.
The configuration is committed.
Run the display current-configuration configuration isis command to check the status of IS-IS interface flapping suppression.