route-policy-change notify-delay

Function

The route-policy-change notify-delay command sets the delay before the Route Management (RM) module to notify each protocol of applying a new policy after the original route-policy changes.

The undo route-policy-change notify-delay command restores the default setting.

By default, this command is not configured, and the delay time is 0s.

Format

route-policy-change notify-delay delay-time

undo route-policy-change notify-delay

Parameters

Parameter	Description	Value
delay-time	Specifies the delay for applying a new policy after the original route-policy changes.	The value is an integer ranging from 1 to 180, in seconds.

Views

System view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

In a scenario that a used route-policy is being modified, after commands are run to modify the route-policy, the RM module immediately notifies the protocols of re-applying the route-policy. However, you must run several commands to modify the route-policy. To prevent the protocols from re-applying the route-policy being modified, you can run one of those commands, and then run the route-policy-change notify-delay delay-time command to configure the delay time when the RM module notifies the protocols. In this way, the protocols can apply the completely modified route-policy.

Configuration Impact

After running the route-policy-change notify-delay command, the RM module sets a delay timer. After the timer expires, the RM module notifies the protocols of re-applying the route-policy.

If the configuration of the route-policy changes again during the delay time, the RM module resets the timer.
If the modified route-policy is used by BGP, in the delay time specified by delay-time:
- If an import policy is configured to filter the routes learned from a peer or peer group using the peer route-policy import command, BGP applies the import policy immediately when the refresh bgp all command is run.
- If an export policy is configured to filter the routes to be sent to a peer or peer group using the peer route-policy export command, BGP does not apply the export policy until the configured delay expires although the refresh bgp all command is run.

Commands related to the timer are as follows:

Example

# Set the delay for the RM module to notify each protocol of applying a new policy after the original route-policy changes.

<sysname> system-view

[sysname] route-policy-change notify-delay 20