trigger-down-delay

Function

The trigger-down-delay command configures a delay after which the route management (RM) module instructs the associated service modules to perform link switchovers.

The undo trigger-down-delay command restores the default configuration.

By default, the delay is 0s.

Format

trigger-down-delay delay-value

undo trigger-down-delay [ delay-value ]

Parameters

Parameter	Description	Value
delay-value	Specifies a delay after which the RM module instructs the associated service modules to perform link switchovers.	The value is an integer in the range from 0 to 1000, in seconds.

Views

Route monitoring group view

Default Level

2: Configuration level

Usage Guidelines

In a hot standby scenario, service modules can be associated with a route monitoring group to trigger link switchovers. When the status of the route monitoring group goes Down, the RM module instructs the associated service modules to perform link switchovers. In addition, the RM module re-delivers routes to the forwarding table and establishes forwarding entries for the routes, which takes some time. Packet loss may occur if the RM module instructs the associated service modules to perform link switchovers immediately. To resolve this problem, run the trigger-down-delay command to configure a delay after which the RM module instructs the associated service modules to perform link switchovers.

Example

# Set the delay to 10s after which the RM module instructs the associated service modules to perform link switchovers.

<HUAWEI> system-view
[HUAWEI] ip route-monitor-group uplink
[HUAWEI-route-monitor-group-uplink] trigger-down-delay 10