mpls rsvp-te timer soft-preemption

Function

The mpls rsvp-te timer soft-preemption command sets the value of the soft preemption timer.

The undo mpls rsvp-te timer soft-preemption command restores the default soft preemption timer value.

By default, the value of the soft preemption timer is 30s.

Format

mpls rsvp-te timer soft-preemption soft-preemption-time

undo mpls rsvp-te timer soft-preemption

Parameters

Parameter	Description	Value
soft-preemption-time	Soft preemption timer value.	The value is an integer ranging from 30 to 300, in seconds. The default value is 30s.

Parameter

Description

Value

soft-preemption-time

Soft preemption timer value.

The value is an integer ranging from 30 to 300, in seconds. The default value is 30s.

Views

MPLS view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-te	write

Usage Guidelines

Usage Scenario

After an LSP is soft preempt, the RSVP module reclaims bandwidth reserved for the link, starts a soft preemption timer, and sends a PathErr message to instruct the ingress to re-route the LSP. After the soft preemption timer expires, the node sends PathTear messages to upstream and downstream to tear down the LSP. To set the value of the soft preemption timer, run the mpls rsvp-te timer soft-preemption command.

Prerequisites

RSVP-TE has been enabled using the mpls rsvp-te command.

Example

# Set the value of the soft preemption timer to 40s.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] mpls te
[*HUAWEI-mpls] mpls rsvp-te
[*HUAWEI-mpls] mpls rsvp-te timer soft-preemption 40